41,10.6 NMI - americanradiohistory.com · 2019-07-17 · expects to market as an AM/FM IBOC DAB add-on to standard AM/FM radios. The company also claims the chip should add no more

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22 NAB Review

36 Pick Hits of NAB 95

41111tow, 4,111

I 0 Managing Technology

ON THE COVER : Once again,the NAB Convention broughtthe people, techniques andtechnology of the industry to-gether in Las Vegas. Photocourtesy Las Vegas Conven-tion and Visitors Center.

May/June 1995 Vo ume 2 Number 3

kis month...

NAB Review 22By the BE Radio staffOur comprehensive coverage of the product introductions and trends at NAB 95in Las Vegas.

Pick Hits of NAB 95 36By our Pick Hits judgesAn elite group of radio professionals selects the top 10 new products of NAB 95.

Counterpoint on EAS 40By William FawcettA critical analysis of the new Emergency Alert System, including a conversiontimetable and EBS decoder modification&

Departments...

Editorial 4By Skip PizziRadio was on a roll at NAB 95.

Contract Engineering 6By Kirk HamackBilling and collecting from clients is probably the least enjoyable (and most 11110,11,1tit)part of a contractor's business.

Managing Technology 10By Chip MorganHiring a contract engineer - what managers need to knost.

RF Engineering 14By John H. Baffison, P.E.Tower inspections are a critical element of station maintenance.

FCC Update 20By Harry C. MartinAvoiding technical violations and "reinventing" the FCC.

News 42Business/People 43New Products 44

Classifieds 46Ad Index 48

- vary

2 BE RADIO. May/June 1995

Production Directors. Engineers. Even newsroom people swear

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" As quickly as you call conceptualizeit, the DSE can do it. Or undo it. "

Bill Schultz...Production Director103.5 WYNY-FM, New York

" You install it, it runs, the productiondepartment is happy. Next problem."

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Editorial:

Buddy,can you

paradigm?

Skip Pizzi,radio editor

Radio was the buzz at NAB 95, especially in terms of the big picture, new -paradigmissues. Although the TV folks seemed hungry for a major defining concept, there wasno shortage of substantial, new service -related topics on the radio side. These included

Internet applications of promotional text, graphics and even audio service; a renaissance indatacasting; seriously new backhaul and distribution technologies; and DAB, looking morereal than ever, in both terrestrial and satellite flavors.

After a seeming eternity (actually just four years, but that's close enough nowadays) indevelopment, NAB 95 marked the first time that mobile IBOC DAB (both AM and FM)was openly demonstrated. For most people I spoke to, this demo, presented by DABproponent USA Digital Radio (USADR), was the top story of the show - at least from apure technology perspective. But there was more to it than that. Big-time chip makerNational Semiconductor showed a small, mocked -up chip (about 3/4" square) that itexpects to market as an AM/FM IBOC DAB add-on to standard AM/FM radios. Thecompany also claims the chip should add no morethan $10 to $15 to the manufacturing cost of theradios. Coupling this claim with USADR's success- Respond via the BEful mobile demonstrations seemed to eliminate thelast questions about IBOC DAB: How well would it Radio FAXback lineperform in multipath/mobile conditions, and how at 913-967-1905high would high receiver complexity/cost be?

Of course, the National Semiamductor announce- or via E-mail toment raised a few eyebrows in light of its pre-emptivetiming, Not only is the FCC still far from acting on [email protected] standards, but the ad -hoc advisory EIA andNRSO committees evaluating proponent DAB sys-tems haven't even completed the first stages of their work. It's obviously a bit early for themarketing of DAB receiver components. Nevertheless, USADR scored a slam-dunk in termsof strategy boosting its profile with such a 2 -pronged effort at NAB 95.

This is not to say that the mobile demos were flawless. In fact, their occasional glitchesmade the system seem all the more "real" and confirmed the work -in -progress nature ofcurrent development But as USADR's Tony Masiello commented, "We're ready to turn therest of the development over to the people who build equipment for a living." This servedas a subtle reminder that USADR is a consortium of broadcasters, and that finalrefinements to the system's hardware might be better accomplished by equipmentmanufacturers - based on a format designed by and for radio people.

Satellite DAB was also a hot topic at the show. Observanrattendees came away from NAB95 with several important points in this area:

1) Satellite DAB will happen, probably before the end of the decade.

2) Terrestrial broadcasters will use this invasion from space as further ammunition for theirquest to remove all existing radio station ownership limits. (Argument: If a DBS licensee canput 20 or 30 radio channels into every U.S. market, why can't we?)

3) The FCC is considering re -opening the satellite DAB proceeding to allow more than thecurrent four proponents into the game.

4) Broadcasters want the FCC to place numerous restrictions on DBS radio services, suchas requiring them to be subscription -based (not advertiser -supported), satellite -deliveredonly (no terrestrial repeaters) and substantially niche-fomiatted.

5) Broadcasters will ask the FCC to rethink its spectrum allocation plans and auction the S-band DAB spectrum to licensees, but only after IBOC DAB capability has been granted toexisting AM and FM radio stations.

6) The current FCC is likely to rule in favor of the "liberalizing" requests for both satellite andterrestrial radio (fewer ownership restrictions, early IBOC DAB, more DBS players) and lessfavorably on the restrictive or "protectionist" requests. There also was a hint that they mayallow separate services on the analog and digital portions of an IBOC DAB channel.

NAB 95 showed us (if we didn't already know) that radio has new paradigms to spare onits horizon, each carrying potential benefit or detriment depending on your vantage point.It's only as these developments get closer that we'll learn, what their true impact on ourindustry will be, if any. Meanwhile, fasten your seat belts and hold on to your wallets.

4 BE RADIO, May/June 1995

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Contract Engineering:

Billing andcollection

By Kirk Hamack

Kirk Harnack is president ofHamack Engineering, a broad-cast contract engineering firmin Memphis, TN. Respond viathe BE Radio FAXback line at913-967-1905 or via E-mail [email protected].

As a 12 -year -old paperboy, I eagerly de-livered the Winfield Courier six days aweek, 52 weeks a year. I got to ride my

bike up and down Sixth Street and throwpapers at 108 porches every afternoon. Deliv-ering newspapers was a lot of fun, I thought.

The monthly collection process, however,was something else. I dreaded it. The newspa-per required the paperboys to go door-to-doorcollecting from their customers in person.Even though I was paid on collections, once Ihad collected enough to pay my bill to thenewspaper, I really didn't feel like collectingany more. I suppose I wasn't throwing papersfor the money, I did it to feel important and tohave some responsibility.

Fast forward 20 -some years: I'm a contractengineer and still like what I do very much. rdprobably do it for free if I could get away withit. However, I can't and so there's still thismatter of collections - and I still don't like that

very much.Because billing and collections

are vital to any operating business,it's worthwhile to examine how theycan best be handled in contractengineering.

Starting off right\ lust of us like to be appreciated.

I want my clients to appreciate meand my work, even as they're writinga check to pay for it. I want them tofeel as if they're getting professionalservice and advice at a good price.Part of that professionalism involvesappropriate handling of financialmatters with clients. From a printedrate card to invoices and statements,the appearance, accuracy and time-liness of your financial documentsare of key importance.

Establishing set rates for consult-ing, labor, travel and incidental ex-penses is the place to start the pro-cess of collecting for your work.Your rate card should set forth theprices you will charge for variousaspects of your services. See Figure

for an example.The rate card can be incorporated into an

actual contract or agreement form signed byboth parties to formalize the client's under-standing and recognition of the rates and othercharges. (See "Contract Engineering," March/

April 1995.) Some contract engineers useformal signed, binding contracts for every joband client. Some reserve such contracts onlyfor larger jobs with substantial money in-volved. Many contract engineers never or rarelyuse a formal contract. No matter which legalform your relationship takes with a particularclient, a clear understanding of rates and othercharges is vital to the subsequent billing andcollection processes.

BillingI have found that by -the -job billing is an

effective and useful method for accuratelycharging clients and for receiving paymentmore quickly. With by -the -job billing, yousend the client an invoice within a day or twoof any work activity. Some contract engineerschoose to invoice clients on a monthly orquarterly basis. Although this is a good optionfor some contractors, the by -the -job methodtends to result in more accurate bills becausethe invoice is prepared and mailed right afterthe work is completed. Answering clients'questions about certain charges is easy be-cause the work was recently done. Moreover,cash flow is generally faster than the monthlybilling method by an average of 15 days.

One terrific tool in tendering accurate andtimely invoices is a computerized bookkeep-ing system. Using such a system streamlinesthe process of entering billing information.Codes can be set up for each type of service orbilling item that may appear on an invoice.Prices and descriptions as well as the client'sbilling address can also be set up in advanceto make it easy and quick to prepare a detailedand accurate invoice. Some bookkeeping pro-grams allow the printed invoice to show yourfirm's logo and customized messages.

One of the most popular bookkeeping pro-grams is QuickBooks from Intuit This andother programs allow customization of yourinvoices and statements, which makes themlook sharp. When output on a laser printer,these forms appear just as professional asthose from a Fortune 500 company.

The invoice is a good place to record adescription of the work that was performed. Infact, a detailed description of problems foundand corrected is both comforting and infor-mative to the client as he or she is reviewing theinvoice. A computerized bookkeeping pro-gram will store these descriptions for laterreference and re -use.

Acme Contract Engineering, Inc. -- Schedule of Rates

Engineering Services, Consulting and Labor $100.00/hrTravel Time (charged for travel in excess of 1 hour) $ 50.00/hrMileage in company vehicle $ 0.35/miNecessary use of Digital Spectrum Analyzer $200.00/job

Travel, meals and lodging are billed on a reimbursement basis.

Terms are Net 30 for established accounts; all others are Due On Receipt of services.Any materials or improvements remain the property of Acme Contract Engineering,Inc. until valid payment is received.

Figure 1. A sample rate card for a contract engineering firm.


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Contract Engineering:Billing and collection

StatementsSending out monthly account statements to clients serves

two purposes. Fust, it's a convenient and businesslike way toremind a client that money is owed. Second, an accuratemonthly statement - one that properly reflects invoice num-bers, dates, amounts, payments, check numbers, etc. - will addto your firm's financial credibility. It shows that you're carefuland thorough in your financial dealings and that your recordsof work and billing for your clients are accurate and timely.

This is another area where computerized bookkeepingprograms work well. These programs can print monthlystatements showing any invoices issued and any paymentsreceived since the last statement was printed. With mostprograms, any range of dates can be printed to show financialactivity over a longer time. This is often helpful when trackingdown missed payments or settling disputes over paymenthistory.

CollectionsAttorneys and CPAs often say that as an account ages more

than 90 days past due, the chances of collecting moneydiminish rapidly. Experience has proven to me that this is quitetrue.

So what is the best way to keep accounts from reaching 90 -day status? On one hand, using written contracts and otherdocuments can increase a contractor's clout when makingcollection efforts. Yet contracts and personal guarantees canbe nearly worthless against a deadbeat client who absolutelyrefuses to pay. Some clients still won't pay even after receiving

Often, the best you can do is refuse any further work for past -

due clients. But there are some other methods for collecting onpast -due accounts. For example, confront the client and appealto his or her nobler motives. In other words, politely persuadethe client that paying the overdue amount is in his best interestand is truly the right thing to do. Writing a firm letter to theclient with the notation that your attorney is being sent a copyof the letter is often a persuasive tactic There also are collectionagencies and services that can be highly effective. Often they areless expensive than attorneys and, short of going to court, areabout as successful at collecting.

Sometimes it becomes necessary to retain an attorney forcollection. Before doing so, consider whether the dollar amountinvolved justifies this move. Remember that you will spend acertain amount of time and money dealing with the attorney(and, perhaps, in court) which could be spent working for good,paying clients. If the dollar amount involved is less than two orthree dais billing, a contract engineer may be better off to writethe account off to "bad debt" and take a tax deduction on theamount.

SummaryThe most effective tool for collecting from clients is looking

and acting as if you expect to be paid in a timely manner. A bigpart of this appearance is to tender good-looking, accurateinvoices and other financial documents. Today's computerand printer technology places this capability within easy reachof any self-employed person or small business.

Additionally, computerized bookkeeping systems will pro-\ ire the contract engineer with accurate financial informationuseful in running the business. Today's programs can figure andwrite payroll checks, perform all general ledger functions, handleaccounts receivable and accounts payable, and even projectyour cash flow and your bank account balance. Best of all, youcan know in a few seconds who owes you and how much. 61



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Managing Technology:

Hiring acontractor

By Chip Morgan

Chip Morgan owns Chip Mor-gan Broadcast Enterprises(CMBE), a broadcast design,systems management and en-gineering firm based in Sacra-mento, CA. Respond via theBE Radio FAXback line at 913-967-1905 or via E-mail [email protected].

Recent trends in downsizing have re-sulted in fewer staff engineers at radiostations. This is a result of advances in

technology that make equipment more reli-able, deregulation of FCC rules requiring en-gineers on staff, and an expectation that radioair talent can handle basic engineering func-tions such as mixing and recording.

Even though radio is based on technology,efficiencies in technical operations have al-lowed the average technical department bud-get to be reduced to about 5% of a station'stotal cost of operation. (This does not includecapital projects or disastrous failures of majorequipment.)

Another trend affecting the industry isoutsourcing of non -core competencies atthe radio station. By outsourcing, stationsbuy expertise in a specialty that is costly todevelop internally. They also get the advan-tage of bulk equipment purchases and ac-cess to specialists who are up to date on the

latest technology and practices.Meanwhile, fundamental changes

in the radio business are increasingthe need for cost-effective technicalsolutions even as engineering's roleis being diminished. With fewer staffmembers running more stations,outsourcing frees managers to con-centrate on the station's main busi-ness - sales and programming.

In order to see where radio engi-neering is headed today, considerits basic definition: Broadcast engi-neering is not simply the repair ofequipment. It is the technique ofdesigning, constructing and support-ing a highly developed communica-tion system by applying technol-ogy. As an example, manufacturersor specialists on specific equipmentcan provide more cost-effective re-pairs, allowing the reduced engi-neering staff to concentrate on is-sues critical to the support concept.

But how should a radio stationowner or general manager decide

who to hire for outsourced engineering, with-out specialized knowledge of the subject?There are several elements that contribute tothis decision.

Costs of contractingFirst, understand that it is generally more

economical to hire expensive, top -of -the -lineengineers. A top-quality engineer helps keepclients from making costly mistakes, savesmoney on purchases and suggests solutionsthat can increase income.

Rate is a function of quality of service. Ifyou're paying a high fee, you should expectbroad experience and rapid results. If you'repaying a low fee, expect things to take longer.Inexperienced managers hire inexperiencedcontractors in an effort to save money.

Also, you don't have to pay contractorsmany of the costs of employee labor. There areno Social Security taxes, unemployment in-surance taxes, liability insurance, Worker'sCompensation insurance, benefits, severance

pay or vacations. This creates a potentialsavings of at least 30%. Of course, a goodcontractor may still cost more per hour thanan average staff engineer, and the costs ofthese benefits are still being paid by thecontractor or the contract engineering firm.But the fees paid to contractors are for "pure"engineering, and the other items often comefrom the station's administrative overhead. Sowhile the engineering budget line may in-crease with a contractor, the station usuallyends up saving money overall. (It may takesome accounting prowess to demonstrate thisconvincingly.)

Another advantage of contracting: A goodcontracting firm can provide extra engineerswhen you need them, and can scale backinvolvement if things slow down for the sta-tion. This no -cost flexibility is one of the keysto the use of contractors.

When you negotiate the deal, make sure it'sclear to both parties before you start theservices. You should have a written contractthat spells out scope of services, costs, pur-chasing authority, response times, how tohandle extra project work and a paymentschedule. (See "Contract Engineering," March/April 1995.)

PitfallsDepending on outsiders can be rife with

problems. Radio stations need to find loyal,reliable contractors they can trust with tradesecrets. If the need for engineering suddenlyincreases due to an LMA, station purchase orother expansion, stations need assurancesthat the contracting firm will stretch and beprepared to cope with the added workload.

When the Internal Revenue Service reviewsindependent contractor relationships, theylook for various levels of control between theparties. The trick is to carefully balance therole of the station management and the con-tract engineer so that you don't run afoul of thelaw. If your station is audited, the IRS will lookat 20 factors that determine whether yourcontract engineer is actually an independentcontractor or an employee. In general, if theradio station has the right to control not onlythe result to be achieved by the worker, butalso the means by which it is accomplished,the worker is probably an employee.

If the IRS determines that your engineer isreally an employee, the station will have to payback taxes and penalties that can far exceedthe savings you may have realized.

Qualifications of contract engineersThere arc cut -rend) two major IN pcs of

contract engineering firms. One twc is asingle free-lance engineer. This contractormay be an employee of one or more stationsand a contractor to others. The other type offirm is comprised of a group of engineers inpractice together working for multiple clients.Some of the engineers may be employees ofthe contract engineering firm and others maybe contractors or consultants to it.

In either case, it is important that the inde-pendent contractor is set up as a legal busi-ness. The scope of services provided by a

10 BI.; RADIO, May/June 1995

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contractor should include systems man-agement and systems analysis. Whenscreening candidates, station managersalso should look for good people skills,computer awareness, broad radio experi-ence, logic, purchasing and budgetingexperience, and a lot of common sense. Inaddition, you want people who present agood image to the public. Engineers whohave worked in on -the -air positions canalso be valuable because they under-stand programming needs and idiosyn-crasies.

Good contract engineers are self-start-ers, honest, know their limitations andkeep abreast of technical advances in theindustry and the market. They have strongproduct knowledge, know how to managerepair and service activities, and are espe-cially good at juggling time -sensitive, high-pressure work requirements.

A contractor should ask to see yourfacility before quoting support costs. Thecontractor should also tell station man-agement about emergency response pro-cedures, day-to-day support capabilities,documentation of work, budget prepara-tion, discrepancy systems, frequency ofbilling, expense and pares procedures,FCC compliance systems, preventive

maintenance plans, training services andproject management capabilities.

Ask about references, training and ex-perience, industry contacts, FCC licensesand SBE certification, examples of workthey've done in the past, insurance (in-cluding workers compensation and li-ability), a business license and a list ofother clients.

The best engineerscombine art and

science, and have agreat passion for radio.

Above all, get a feeling for their sense ofpriority and ability to see the big picture.Some people don't understand that it'sas important to do the right job as it is todo the job right. The best engineers com-bine art and science, have a great passionfor radio, and have lots of ideas abouthow to improve your facility.

Qualffications ofcontracting stations

A station considering the outsourcing

Who's

of engineering must examine its ownsituation to see how well it can use con-tract engineers.

First consider your performance ex-pectations. Do you expect an engineer tobe at the studio five days a week duringbusiness hours? Do you want preventivemaintenance? Do you have project workto be done?

Also consider how well equipped thestation is. If there's no backup equipmentand the existing equipment is fallingapart, you don't need a contractor tomaintain it - you need a contractor towbuild it. Day-to-day engineering in afacility with bad or poorly maintainedequipment is futile for all involved.

As general manager or program direc-tor, you can ensure the quality of the finalproduct (the on -air sound) by providingadequate information for appropriate de-cisions. Insist on top-quality work andmaterials. Pay a fair amount for technicalwork and pay on time.

Engineers are often stereotyped as hav-ing poor people skills and being hard toget along with. As manager, you need tosupport your engineers if you expectthem to be motivated. If they know yourpriorities and feel that their work is ap-preciated, they'll help you by saving yourstation money and providing profitableideas and reliable systems that will paydividends for years to come. ii

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RF Engineering:

Towerinspections

By John Battison, P.E.

John Battison, BE Radio's con-sultant on antennas and radia-tion, owns John H. Battison andAssociates, a consulting engi-neering company In Loudonville,nearColumbus,OH.Respondvlathe BE Radio FAXback line at913-967-1905 or via E-mail [email protected].

There are two kinds of tower inspec-tions: One is the required quarterlyFCC tower light inspection, and the

other is the kind that prudent engineersmake about every three months on theirtowers and the radiating devices mounted onthem.

Tower light inspectionsSection 17.47 2(b) of the FCC rules re-

quires that every lighted tower be inspectedat intervals of not less than three months.This is to ensure that all mechanical lightingdevices, automatic alarms and indicatingdevices associated with the tower lightingsystem are working correctly. The degree ofdifficulty that this involves will depend onthe height of your tower and the lightingrequired by your license.

If your tower is less than 200 feet, younormally will have no lighting requirementsto worry about. Above that height you will

find various lighting arrangements.The appropriate one will be speci-fied in the station's constructionpermit (CP). Occasionally, shorttowers in the vicinity of an airportwill have to be lit. Again, this willbe specified in the CP, so read itcarefully - including all the backpages.

When making your lighting in-spection, remember the magicnumber 40,1 2 This refers to themaximum and minimum flashingrates of 40 and 12 times perminute, respectively. If you havean older mechanical flasher, besure to make a careful count andlubricate and clean the flashingmechanism as required.

The top 300mm beacon for alltowers using red lights must havetwo lamps in it, of either 620W or700W (type PS -40 code beacon).When inspecting the lights at night,it is not always possible to tell ifboth lamps are burning. It's a good

idea to take a clamp -on ammeter and checkthe lighting current to the beacon to be surethat both are burningg.

It is not unusual to find one or more side-light red globes broken. They seem to attractidiots with rifles. So be sure when performingthe night inspection that all lights are red,and not just partly red.

If your tower uses strobe lighting, checkthat your day/interim/night power changeis working properly. It is not uncommon tofind faulty power -change switching equip-ment that continues to run daytime power atnight - much to the displeasure of thoseliving nearby. The opposite effect is far moredangerous, however. Running tower strobesat their reduced nighttime power during theday is a serious violation.

Sometimes the flasher rate for strobe light-ing systems changes and creates unusualcombinations of lights, so check this compo-nent for proper operation. Note that someolder systems carry the high strobe voltage to

each light via heavily insulated cables. Checkthese for worn or weakened insulation whereshorting might occur. (Most newer strobesystems generate the high voltage at eachlight fixture, and use only a power pulsefrom the ground controller to initiate thestrobe discharge.)

Gaskets on electrical boxes used by towerlighting systems are a common source oftrouble. It is important that their integrity bemaintained to prevent water entry. Be surethat gaskets are replaced as necessary, andthat gasket material is not caught in a box'slid or cover when it is closed.

Nowadays most stations probably haveremote indicating alarms observing towerlight operation. Don't forget to check thesedevices when making the tower inspection,and verify that they are telling the correctstory to all control points. Be sure that thecurrent sensors can tell if a single sidelightis out. Sometimes the heavy current of thetop beacon is all that is checked. For facili-ties using strobe daytime and red nighttimelighting, make sure that both lighting -moni-tor systems are working properly.

The FCC and FAA take adim view (no pun

intended) of incorrecttower -light failure reports.

While checking the tower lighting, be sureto check on the operators or whoever iskeeping the operating logs for the lights. (It'snot a bad idea to make sure that a tower lightlog is being kept.) Even daytimers may berequired to have lit towers, and someonehas to oversee their lighting. Be sure alsothat the "responsible person" at night knowswhom to call at the FAA if lights fail. Pointout that delays can cost the licensee money.

In fact, it is important to verify at allstations that board operators and remote-control personnel are absolutely sure of thecorrect procedure to follow in the event oftower -light failure. Be sure that the correctFAA number(s) are posted along with theproper instructions. The FCC and FAA takea dim view (no pun intended) of incorrecttower -light failure reports.

After performing the tower lighting in-spection, be sure that it is entered in themaintenance log in a visible location. Itdoes not do much good to make an inspec-tion report that can't be found when theinspector comes callingg.

Other tower checksFor incandescently lighted towers, when

making the light inspection also check thecondition of the tower's paint, both forflaking and fading. Also check that the paint-ing configuration conforms with the rules.

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RF Engineering:Tower inspections

Make sure that the alternating bands of red and white areproperly sized, and check that the top band is a red one-- I have come across towers that were reversed.

Guy wires are often left to rust away quietly. If necessary,see about getting them greased. If you've never seen itdone, it's interesting to watch someone slide down a guywire, greasing it as he goes.

Check the guy anchors. Look for unlocked turnbuckles.Watch for ice damage at the anchors themselves, as wellas for rising anchors that have heaved with groundfreezing. This doesn't often happen, but it's better to besure.

On series -fed AM towers, check the tower base to besure that the weep holes in the base insulator are clear.Look for cracks in the base insulator. Fortunately, thisalso does not seem to happen often, but again it's wellworth checking.

Speaking of insulators, check all the guy insulators asbest you can with a pair of field glasses. Also make a checkof base operating current to be sure that there is nochange in operating impedance. One of my clients had arobin family that built a nest in the base insulator of hissouth tower every year. It did not appear to affect theoperating impedance, so we left it there. (We did notreceive complaints from the EPA about the RF environ-ment, so I guess that the eggs all hatched properly.)

Don't forget the invisible hall (Ifthe antenna that lies underground.

If you have a shunt -fed antenna, the same points apply.I f the antenna was originally built as a series -fed, make surethat the copper strap bypassing the base insulator is stillsound and properly connected. I recommend the use offour straps - one for each side of the footing. Make surethese straps are still adequately brazed to the groundsystem.

Be sure that the RF-drive copper link is tightly secured ateach end. If tower lighting power is fed along the RFtransmission line, be sure the insulation is still sound andall connections are tight. If static drain chokes are used,ensure that there is still a DC path through them, and thatthey are not burned out or corroded into uselessness.

The ATU is part of the antenna system, and it should becleansed of rodent nests and other animal life that enjoysliving in an RF environment. It's a good idea to check thecalibration of the base current meter when going over ATUconnections, and to clean coil clamps.

FM antennas should also be checked, although there islittle that can be visually inspected from the ground. Again,field glasses will give a general idea of antenna condition,but if there are no listener complaints of increased multipathor other transmission anomalies, it is usually best to letsleeping dogs lie.

High -power transmission systems with rigid copper coaxshould have coax joints inspected where possible for signsof heating or leakage. Nitrogen or thy -air systems alsoshould be inspected. Many engineers keep a small log ofgas usage, which gives them a handle on leak development.

Continued on page 19

4



RI EngineerTower ns

Continued from page 16In the case of a dry -air system, excessive dehydratorrunning time should raise a flag.

Don't forget the invisible half of the AM antenna that liesunderground - the ground system, an unappreciated andoften neglected part of such systems. Over the years, theground radials tend to become broken and corroded. It isnot at all unusual to find an older station with only abouthalf its nominal radial complement remaining.

Experience has shown that a radial system works bestwith about 120 radials, each equal in length to the towerheight. Shorter radials reduce radiation efficiency.

The number of radials has little effect on the reactanceof an antenna system, so losing a few radials over the yearswill not cause much of a change. But, as the number ofactive radials decreases, the base resistance increases. Thiswill produce an operating resistance above the optimumoperating value. Such a change affects only ground lossresistance, however, and antenna resistance includes both

It may provide comfort to have agrounded tower, but if it is onlyhalf -grounded it will be worse

than useless.

ground loss resistance and radiation resistance compo-nents. As the ground loss resistance increases, the powertransmitted decreases, and coverage becomes poorer.

FM antennas have ground systems, too. FM -only towersare usually grounded - or at least they're supposed to be.It is not sufficient to pour foundations and mount towerson them. Ofter. the grounding of an FM tower is over-looked or done poorly. Therefore, include a check of towergrounding in any FM -tower inspection process. The cop-per grounding strap should be brazed or properly clampedto the tower base and run to at least four grounding rods.Even better is one of the various special grounding systemsand chemical salts that are offered to improve grounding.

It may provide comfort to FM broadcasters to have agrounded tower, but if it is only half -grounded it will beworse than useless. A piece of 18 -gauge wire running to aground rod doesn't truly ground the tower, but it may offerenough impedance to a lightning strike to divert it to thecoax and thence to the transmitter. Remember, whenlightning hits a tower and goes down to ground, it choosesthe shortest path and the one of least resistance. Manytransmitters arc located at the base of the antenna/tower.In such cases, the incredible current of a lightning pulsecan encounter an extremely high impedance even in apiece of 4 -inch copper strap - high enough to divert thedischarge away from a direct ground path, and straight tothe final stage.

Regardless of the modulation system (AM or FM), allgrounding straps should be in place at the tower base, andthey should tie the whole system together. These connec-tions should be checked during inspection and if absent ordamaged they should be installed or replaced.

After completing your full tower inspection, be sure toenter it into the maintenance log.

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FCC Update:

FCCcompliance

checkup

By Harry C. Martin

Harry C. Martin is an attor-ney with Reddy, Begley,Martin & McCormick, Wash-ington, DC. Respond via theBE Radio FAXback line at913-967-1905 or via E-mail toberadioUintertec.com.

Broadcasters should periodically con-duct a self -inspection of all facilities,including their transmission facility

and tower, to ensure compliance with appli-cable FCC rules and regulations. (See "RFEngineering," p. 14.) The first step in review-ing a station's technical operation is to checkthe areas where FCC inspectors most oftenissue violations. See the check list below forreferencing the pertinent sections of the rules:

All towers are correctly painted. (17.50) AM towers are properly fenced. (73.49) All current station authorizations (includingauxiliary) are posted. (73.1230(a)) Chief operator is designated in writing andposted. (73.1230(a) & (b)) Contract chief operator agreements are onfile. (73.1870(b)(3)) Chief operator's and all duty operators'licenses posted. (73.1230(a) & (b)) AM monitor point descriptions are correct

(73.158) Chief operator is making weeklystation log review. (73.1870(c)(3)) Station logs for the past two yearsare available and complete.(73.1840) All station logs indicate a weeklyEBS tests sent and received.(73.961) Remote control and meteringoperational and calibrated.(73.1410) Most recent equipment perfor-mance measurements availableand complete. (73.1590) Transmitted signal meets FCCspecifications and is in accordancewith station license. (73.44/73.317) Operators are properly trained.(73.1860) EBS receiver working and tunedto proper station. (73.932) EBS test transmissions OK EBS encoder is FCC type ac-cepted (i.e., no tones on cart).

(73.942(a)) EBS check list with authenticator envelopeat operator duty position. (73.908)

"Reinventing" the FCCThe FCC has responded to Vice President

Al Gore's mandate to federal agencies for"reinventing government" in a report issuedthis past February.

The first part of the report describes theagency's efforts over the past year to eliminatebacklogs, improve processes and reduce regu-latory burdens. More interesting, however, arethe reports proposals for administrative andrulemaking actions for further streamliningFCC operations. Among these are the follow-ing proposals of interest to radio broadcasters:1. Simplify and clarify the criteria used incomparative hearings to choose among com-peting applicants for new broadcast facilities.2. Streamline and consolidate the equip-ment authorization process, including shift-ing to electronic filing.

3. Relax the marketing and certain adminis-trative rules related to equipment authoriza-tion.4. Remove restrictions on the use of frequen-cies above 40GHz and open up spectrum forlicensed and unlicensed services.5. Authorize the use of electronic mail andelectronic filing,6. Make the effective date for delegatedauthority items the release date to a publicnetwork like Internet.7. Delegate to the designated frequency co-ordinators authority to deal with Canada forfrequency coordination.8. Simplify procedures for certification tothe requirements of the Anti -Drug Abuse Actof 1988.9. Simplify or eliminate several filing re-quirements for microwave stations, includ-ing expansion of the types of station modifi-cations that do not require FCC approval.10. Propose to Congress the followingchanges in the Communications Act: Modify the prohibition against the com-mission waiving the requirement for a broad-cast construction permit. This proposal wouldgive the FCC flexibility to determine whenpermits are necessary and when constructioncan be undertaken without prior approval Provide that a license authorization for astation silent for one year automaticallycancels. This would save commission re-sources, eliminate undue protection of non-operational stations, and allow operationalstations greater flexibility in changing fre-quencies and upgrading facilities. Legalize the broadcast or cablecast adver-tising anywhere in the United States of anylottery enterprise that is lawful where con-ducted. Simplify the broadcast license renewalprocess by establishing a 2 -tiered process:First, the incumbent licensee's performanceduring the preceding license term would becompared only against statutory standardsand not against any competing applications.Second, the renewal application would beautomatically granted if the statutory stan-dards are met or exceeded or designated forhearing if the standards are not met Authorize the use of private, independenttesting labs to test and certify radio equip-ment to ensure compliance with technicalstandards for radio frequency (RF) emissions. Authorize FCC to: a) retain fees above acertain sum sent to the Treasury, b) amendfee categories, c) change the amounts of fees,and d) create new fees.

DatelineOnJune 1, broadcast stations in the

following states must file their annualownership reports: Arizona, Wash-ington, DC, Idaho, Maryland, Michi-gan, Nevada, Ohio, Oklahoma, NewMexico, Texas, Utah, Virginia, WestVirginia and Wyoming,

20 131: RADIO, May/June 1995

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STUDIOFRAM EPRODUCTIONIS FAST, EASY.

In the production studio, timeequals money. For the fastest,easiest multi -track productionfor commercials and stationpromos, Computer Conceptsintroduces the StudioFrameTMthe complete audio workstation,"studio in a box." Everyproduction feature from true8 track input and output(expandable to 24 tracks) to timecompression, digital EQ tndfilters is built into StudioFrame.Best of all, with its directintegration with DCS, prodt cedspots can be on the air seccudsafter completion.

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LAS VEGAS- Visitors to the 1995 NAB convention were amazed to see no fewer than six newproducts for radio from Computer Concepts, makers of DCSTM, the world's leading hard disk system. Forthe first time, one company offers proven products for stations of every size - from 100% live majormarket powerhouses to fully automated local stations - all working together through the DCSarchitecture. Some of these new products, while new to the US, have been in use for years in internationalmarkets... another advantage of Computer Concepts' world-wide scope. With so many products to choosefrom, Computer Concepts can now custom -tailor a profit -making system for every radio operation.

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MAESTRO BRINGS MUSICAND SPOTS TOGETHER.DC'S has always managed commercials and spots

flawlessly. Maestro" now does the same for music,integrating all music and commercial information andcontrol with a WinchwsTm-based on -screen interface.Maestro is the key to accessing music directly from harddisk. It interfaces directly with music scheduling databasesystems and gives on -sir talent total flexibility to executeperfect song-over-jiagle-over-song crossfades. Musicsearch by type, anis', etc., intro and outro countdowndisplay and instant access to news and weather info arejust a few of the many features which make Maestro theperfect DCS interface for creative on -air control.

Newsroomkeeps you up-to-the-minute.Radio news can be a profit

center with Newsroom*", thecomplete electronic newsoperation from ComputerConcepts. The key word withNewsroom is efficiency. Thesystem automatically takes bothtext and actualities from wireservices, networks and othersources. A news person writesand edits copy on screen,linking sound bites to the copy- playing the wrong "cart' is athing of the past. Editing ofaudio actualities is fast andprecise. On -screen promptinglets talents read final copy rightoff the screen. Newsroom isfully integrated with DCS andMaestro and can be added to aninstalled system at anytime.

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CafRackTM is a field -proven"front-end" to DCS which putsright on the screen all the cartsyour morning (or other) talentcould ever want, for instant,no -hassle access. Individual"racks" of carts can beprogrammed for each show -there's no limit. Talent uses atouchscreen, trackball or mouseto "point and play" carts tothree on -screen graphic "cartmachines." Events played fromDCS can be controlled byCartRack. It's the easiest way tohandle live shows offered byany hard disk system. LetCartRack bring order into yourhectic, live, money-makerdrivetime shows, and then letDCS automation take over tohandle other dayparts.

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What makes ComputerConcepts stand out of the packof companies now offering harddisk products for radio? We'recustomer -driven, and we havebeen since we started over 20years ago. We maintain directcontact with our customersbefore, during and after the sale.We're so proud of our customerrelationships that unlike mostother vendors, we'll be happy tosupply our entire customer list toany prospective purchaser.

DCS from Computer Conceptshas long been the leader inautomating commercials andspot insertion for stations of allsizes. But the big news this yearis an unprecedented array ofnew products for every facet ofon -air operations, and everykind of radio facility. All arefield -proven and backed with thekind of customer service that hasbeen instrumental in the successof Computer Concepts.

As your needs change, so canyour DCS-based system. Forexample, DCS systems can beconfigured to store music,commercials, jingles and otheraudio cuts either centrally on anaudio server or distributed onindividual DCS workstations. Anew option, Audio Central+distributed audio, offers bothcapabilities plus complete fail-safe redundancy.

Another new DCS optiondeveloped in response tocustomer requests allows thesystem to start playing backmaterial while it is still beingrecorded. Perfect for delayingnetwork news -on -the -hour for afew seconds or minutes whilegiving local headlines first.

All the new and excitingComputer Concepts productsintegrate seamlessly to DCS.It's your assurance that -whichever components youchoose to make up your DCSsystem today - your system canbe expanded tomorrow.

Large stations or small, simplesystem or very complex, todaymore than ever, there's one placeto call for total expertise andtotal customer responsivenessin hard disk systems. CallComputer Concepts at 1-800-255-6350 and profit from ourexperience.

Ci'cle (6) on Reply Card

NAB 95ReviewBE Radio's exclusive team of reportersuncovers the new products of NAB 95.

Radio automationBy Kirk HarnackHarnack is president of Harnack Engineering, abroadcast contract engineering firm in Mem-phis, TN,

Purveyors of radio automation sys-tems introduced numerous features andcapabilities in their systems at the 1995NAB Convention.

A good example is Computer Con-cepts, maker of the DCS (Digital Com-mercial System). Many new elements ofthis DOS -based system were un-veiled, providing improved userinterfaces, storage/retrieval ac-cess, wire capture and programassembly. Also announced wereDCS's support of ISO/MPEGLayer II storage and an interfacebetween DCS and the TimeLineStudioFrame workstation.

An addition to the HarrisAllied automation product linewas the DDS Digital Deliver)System from Radio Systems. In-stead of using a PC screen, itemploys multiple control pan-els that look like cart machineswith LCD screens. DDS is UNIX -based, allowing up to 16 simul-taneous audio operations froma single file server.

Wizard for Windows isProphet Systems' radio auto-mation system. It is based onpowerful, off -the -shelf computers con-nected by a Novell network. Features for1995 include automated time and tem-perature announcements. The system'sversion 4.0 software also includes addi-tional fault tolerance and an improvedfile server interface.

The Phantom from Register Data Sys-tems (RDS) is a hard -disk -based auto-mation system designed primarily forsatellite automation. For 1995, RDSintroduced a special Macro Keyboard,

TABLE OF CONTENTSRadio automation - 22Digital audio workstations .... _23Microphones, accessories, telephoneinterfacing, and audio mixers 23

Audio processing and storage 26Backhaul and distribution 28Routing switchers, wire/cableand test equipment -29RF equipment 33Studio support equipment andfield accessories '34

which allows pre-programming of com-monly used keystroke sequences to sim-plify and quicken daily tasks.

Enhancements to the Scott Studiosradio automation system includeCompuCarts and a graphic waveformeditor. CompuCarts is a "wall -of -carts"system designed for quick and easyaccess to hundreds of cuts on a touch -screen display. The graphic waveformeditor adds stereo cut -and -paste edit-ing as an integral part of the Scott

Studios system.Radio Computing Services (RCS)

showed the ProSonix digital editor/workstation addition to its growing lineof PC -based modules in the RCS Workspackage. Available in stereo or 8 -trackform, ProSonix includes ISO-MPEGLayer II coding and a dedicated controlsurface with familiar, assignable con-trols. Based on the Motorola 56000DSP, ProSonix includes AFS/EBU VO,waveform editing, automated mixing and

time compression/expansion.Arrakis has officially rolled out the

Gemini software and hardware enhance-ments to its DigiLink automation sys-tem. Gemini gives an announcer instantaccess to hundreds of audio cuts, andup to three cuts can play simultaneously.DigiLink News Text is a software mod-ule for entering and editing news, com-mercial tags, weather scripts, E-mail andmore, while Remote Control allows com-plete control of a DigiLink workstation

over a LAN or via modem.Broadcast Electronics (BE)

introduced NewsBoss, a Win-dows -based newsroom auto-mation system that integrateswith new or existingAudioVAULT automation sys-tems. It includes wire -captureand a complete text editor,along with a TV -styleteleprompter on the computerscreen. Working with its sub-sidiary, Broadcast Program-ming, BE is able to supply ra-dio automation systems withmusic already on hard diskplus ongoing music support.

Dalet is a Windows -basedradio automation system thatworks in a stand-alone or net-work configuration, using stan-dard PC hardware and LANs.New features include a 4 -track

digital editor and ISDN, satellite or POTSconnectivity for wide -area networkingg.

Features introduced by ENCO Sys-tems for its DAD486x DOS -based sys-tem included advanced automated pro-gram -transition options, comprehensiveassembly editing, transparent links tothird -party audio and text editors, aninteractive interface with a major musicscheduling system, and the availability ofmusic libraries pre-recorded on harddisk.


ITC added several features to its radioautomation system, DigiCenter, includ-ing one -touch playback of up to 256audio cuts and log editing/merging soft-ware. Also introduced was CD DigitalTransfer, which allows digital dubbing ofCD audio into Di giCenter at 4x real time.

LPB showed some enhancements toits Salsa automation system, including aPentium platform option that providesa noticeable speed increase.

The Management also showed up-dates.to its AXSsystem and TM Centurypresented the latest on its UltimateDigital Studio VDS). Finally, on theinternational scene, some interestingsystems and upgrades were shown byABC Digital of Australia (showing D -RADIO), AEQ of Spain (now with a US.office, showing the MAR system) andRadiomation of Ireland.


Digital audio workstationsBy Tom McCarthyMcCarthy Is a systems engineer for NationalPublic Radio, Washington, DC.

NAB 95 was massive in terms ofdigital audio workstation products. Al-most all DAW manufacturers introducedsoftware upgrades and somevendors released redesignedor new workstations.

Fostex Corporation ofAmerica released TimeFlextime compression/expansioncapability and Version 4 soft-ware for the lire of Founda-tion 2000 digital audio work-stations.

Orban presented Version5.0 software for theDSE-7000workstation, adding pitch -shift,time compression/expansion,van -speed, reverse audio, im-proved screen display and anexpanded help package. TheDSE-7000 now interfaces withSystems'DAD486xand Broadcast Elec-tronics' AudioVAULT systems.

The DM -809 was introduced byRoland. Its most striking feature is itssize, especially considering the numberof features that the 26" x 11.25," 12 -pound package contains. The DM -800includes eight tracks of hard -disk re-cording with 100 layers per track, fulldynamic automation and eight dedi-cated faders. Up to 3.5 track hours ofrecording at 48kHz can be stored in-side the unit, and an additional 24 trackhours can be accessed outboard viaSCSI ports.

Studer Editeth introduced the DyaxisHbv digital audio workstation, essen-tially a Dyaxis II minus its synchroniza-

tion and expansion capabilities. It isspecifically geared for the broadcast ra-dio production market, and features abuilt-in automated digital mixer withdynamic level control, panning, meter-ing and 5 -band parametric equaliza-tion. Also new was the Edit Controller, adedicated transport and edit controlpanel, and the Dyaxis Ili InterMix pro-cessor, a self-contained digital studiothat includes all the basic requirementsfor recording, editing and automateddigital mixing.

Avid Technology demonstrated Ver-sion 3.1 software for its AudioStationand AudioVision digital audio worksta-tions. Features include enhanced com-patibility with Avid's Media Composerand Film Composer non-linear editingsystems. The 3.1 upgrade also includesenhanced hardware and software inte-gration between Audiovision andAudioStation and the Yamaha DMC1000 digital mixing console.

Nagra Lysis introduced an array ofdigital audio workstations and an inte-grated approach for the formation ofan entire digital network. Three work-station models are offered: a consulta-tion/news editing unit, a pre -produc-tion workstation and an on -air unitspecifically tailored for broadcast con -

Power Mac platform called SessionSoftware 2.0. Using the native audiocapabilities of the platform, this inex-pensive software package adds numer-ous production, synchronization andimport/export features.

Meanwhile, several of Digidesign'sthird -party developers (now number-ing more than 60) produced an arrayof plug-in modules, includingLexicon's NuVerb, Steinberg's VirtualIX Rack and products from Waves,Jupiter Systems, QSound Labs andGray Matter.

A software update was announced byLexicon for Opus that takes the systemto Version 5. Enhancements includesupport for standard SCSI hard drives(including low-cost 2.2GB removabledrives) and an overall increase in sys-tem performance and reliability.

Sonic Solutions introduced theJour-nalist/News System, to accommodatebasic editing and sequencing of newsclips and short programs cost-effec-tively. The company also introduced itsRadio Workgroup Architecture, whichenables broadcasters to configure scal-able networks of radio production sys-tems. Multiple DAWs with varying de-grees of capability can be linked to-gether so users can share common

soundfiles and access them si-multaneously in real time.

Timeline Vista announcedthat effective immediately all ofits Timeline DAW-80 digitalaudio workstations will containupgraded Intel Pentium pro-cessing power without a priceincrease.

ABC Digital introduced aGraphic User Interface (GUI)for its D -CART system, whichnow allows it to be accessed ona standard Windows -based PC.

Circle (76) on Reply Card Microphones, accessories,telephone interfacing,and audio mixersBy Chip MorganChip Morgan owns Chip Morgan BroadcastEnterprises (CMBE), a broadcast design, sys-tems management and engineering firm basedin Sacramento, CA.

ENCO trol room use. The workstations runUNIX on 486 and Pentium platformsto achieve true multitasking.

Studio Audio & Video demonstratedthe latest SADiE software release, Ver-sion 2.2. Upgrades include The SpeechEditor, which has the ability to auto-matically find, mark and remove areasof silence based on user -definable level -threshold and duration settings, pro-viding high -quality time -compressionfor speech recordings.

Digidesign presented an upgrade ofPro Tools III to version 3.1, whichincludes punch -on -the -fly and improve-ments to its ADAT interface, includingexternal synchronization and supportfor the Fostex RD -8. Another releasefrom Digidesign was a product for the

New digital systems notwithstand-ing, there is still plenty of need formicrophones, mixers and related prod-ucts in radio - as evidenced by thenumber of new products in this cat-egory, and the number of people inthese exhibitors' booths at NAB 95.

MicrophonesElectro-Voice showed a studio con -

BE RADIO, May/June 1995 23

NAB 95 Reviewdenser microphone called the RE2000.It's a short -D, high -efficiency unit withthe high output of a large diaphragmmic, but the tighter polar pattern andfaster transient response associated withsmall -diaphragm designs. The RE2000features a true balanced -outputtransformer designed for the mi-crophone by Jensen.

Shure Brothers announced theIT Wireless System, a low-costVHF line comprised of three dif-ferent battery -operated receiver/transmitter combinations. Theunits run on 9V batteries, up toseven hours on a single battery.All operate in 10 frequency des-ignations between 169 and216MHz.

Sennheiser introduced theMD431 II, an update of itsMD431 supercardioid dynamicshock -mounted microphone, fea-turing improved frequency andpolar response. A UHF diversitywireless microphone receiver, theEM2004-UHF was also presented. Itcan be tuned to any one of 16preprogrammed channels, and has atotal bandwidth of 24MHz, allowing itto be used anywhere in the world. An-other product was the ME67, a long-

shotgun addition to the K6 modularcondenser line.

Sony introduced a UHF synthesizedtransmitter for wireless microphonebodypack applications, the WRT-860A.It's physically the smallest unit Sony

makes in the 800 series, yet it supplies20mW of power and offers a broadspectrum of operating frequencies.

Telex Communications introducedthe ENG-500 wireless microphone. Itcombines the low -noise performance ofcrystal control with much of the fre-

quency agility of synthesized PLL de-signs. An interchangeable module holdscrystals for three different UHF frequen-cies selected for their compatibility witheach other. A similarly configured VHFversion, the FMR-I50, was also shown.

Lectrosonics demonstrated the195 series of wireless microphonesystems. These units are designedfor maximum battery life, featuredual -band companding, ratio -diversity reception with dynamicaudio combining, wide devia-tion with no pre -emphasis orde -emphasis and rugged ma-chined aluminum construction.The series has extensive meter-ing and control capabilities andis designed for critical applica-tions.

Vega introduced the T-678synthesized miniature bodypacktransmitter with internal dipswitches for 1,600 frequenciesin 25kHz steps over a 42MHz

range (seven UHF -TV channels). Vegaalso showed the SU-620 series of syn-thesized wireless mics with cost effec-tiveness designed for a variety of appli-cations.

Audio-Technica (AT) presented theAT873R, a small hypercardioid vocal

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NAB 95 Reviewmic that is phantom -powered and in-cludes internal shock -mounting. Thehigh-SPL capsule can be replaced withavailable omni, cardioid and subcardioidcapsules. AT also showed the ATR65, aunidirectional electret mic that can beused as a lavalier or slip into its silver -dollar -sized base for attachment almostanywhere, and the AT858, a wide -rangecardioid on a slim gooseneck with dipswitches in its tabletop base to mate itsoutput with almost anything.

Posthorn was showing a Schoeps"Compact" condenser mic, the CCM-U,which looks like the company's Coletteseries without the amplifier. Also newwas the WMS, a windscreen built to slipover two mics for M -S coincident use.

Crown showed two unique an-nouncer headset mics with bracketsmade to mount on the Sony MDR -V6and MDR -7506 headsets. The CM-312HShas a hypercardioid pattern andthe CM31111S uses Crown's Differoidnoise -cancelling technology.


Microphone accessoriesBenchmark Media System presented

its MicMan Jr., a high -quality stereo micpre -amp that can be powered by inter-nal batteries or AC. Also on hand wasthe IMS01 daughterboard, which plugs

onto the MDA101 mic-pre-amp/DAcard to provide a switchable, separatecommunications channel output.

Studer International introduced thefirst of a range of digital mic/line pre -amps, the D19 series. One of these, theMicAD, features a high -quality 8 -chan-nel mic/line pre -amp system with 20 -bit conversion. It's 2RU high, has fourAES/EBU outputs, plus optional ADAToptical, S/PDIF or TDIF outputs.

Aphex Systems introduced the Model107 dual -channel thermionic micro-phone pre-arnp, featuringa transformerlesssolid-state front end followed by a tubecircuit that provides the sonic charac-teristics of tube amplification withoutthe high voltages, heat, fragility andshort life span of conventional tubecircuitry.


Telephone interfacingGentner Communications showed its

latest refinement for telephone interfac-ing, the TeleHybrid. (See "NAB 95 PickHits," p. 36.) In addition, Gentner de-buted several enhancements to theTS612 digital telephone system, in-cluding PC call -screening software, anetwork interface that allows up to 10TS612s to share a set of telephonelines, a 1A2 key -system interface, and

TS612 control panels configured asdrop -in modules that fit into on -air con-soles.

Telos Systems showed its line of digi-tal hybrids, including the ONE -x -SixTalk Show System, the ONE plus ONEdual -hybrid and the 100 Delta interfacewith dynamic equalization. Call ScreenManager talk -show software was alsodemonstrated.


Audio mixersWheatstone Broadcast Group showed

the D-500, a digital on -air console thatlooks like a traditional analog unit. (See"NAB 95 Pick Hits," p. 36.)

Otani Corporation introduced the Sta-tus family of digitally controlled analogmixing consoles. The consoles featureflexible on -board automation and sta-tus -recall. Options include moving fad-ers, dynamics -processing software andpatchbays.

Ramsa debuted the WR-C4500 se-ries of portable mixing consoles, featur-ing 12 -input and 20 -input mainframes.Each includes four stereo line inputs,four bus -outs plus a stereo mix outputand four aux buses. A larger console, theWR-SX1, was also shown. Available in44- or 52 -input versions, this mixerincludes 20 subgroups and VCA con-

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NAB 95 Reviewtrol, with 4 -band parametric EQ andautomation capability.

Studer showed the 980 series of ana-log broadcast consoles, an upgrade ofthe 900 series that includes a rede-signed input section and snapshot auto-mation using PCMCIA storage cards forpersonal set-up memory.

Sony presented the MXP-700 seriesof cost-effective analog audio mixingconsoles. Features include extensivetalkback functions, mix -minus, fourmono and two stereo cleanfeeds, multiple aux sends,fader start control, reversetalkback, up to eight groupmodules with 3 -band EQ,assignable dynamics andVCA grouping.

DDA showed the Network7 console, the company'sfirst dedicated broadcastmixing console, which is de-signed specifically for 1 -per-son on -air studios. It includesaudio limiters built intomono and telephone inputs.a separate record bus and anautomatic ducking system.

In automatic mixers, ShureBrothers took a good prod-uct, the Model 410, andturned it into a great productby doubling the number ofmic inputs to eight, addinginsert points, EQ and somefeatures from its AMS auto-matic mixer line - all without increasingthe price. The SCM8 10 will operatewith any professional microphone andcan be ganged to handle up to 400mics.

up access features. A hardware upgradeimproves mid -range and low -frequencyperformance.

Aphex displayed a version of theCompellor, the 320A, with improvedlow -frequency performance. The 722Dominator H adds control (internal orexternal) and selection of pre- and de -emphasis (50ps, 751.1s or none).

Circuit Research Labs (CRL) intro-duced the DP- 100, a digital audio pro-cessor for FM with touch -screen con-

WZ-DM30, a 1-input/4-output versionthat adds 4 -way crossover.

Roland showed the AP -700 advancedequalizing processor, designed for ex-tensive equalization and feedback elimi-nation. It also provides a spectrum ana-lyzer.

Sony introduced the DPS-V77 muld-effects processor, which offers EQ, delayand reverb effects. It includes AES/EBUand S/PDIF digital VO.

Symetrix has updated its popular micprocessor to the 528& re-fining its performance andadding a few features. Otherintroductions included the488 Dyna-Squeeze, an 8 -channel compressor, and the610 Broadcast Delay. (See"NAB 95 Pick Hits," p. 36.)

Alesis introduced theQuadraverb 2, a multi -effectsprocessor with high -qualityreverb effects in a 1RU pack-age.

Yamaha introduced theREV1000, a digital reverbwith 99 presets and a widerange of controls.


Audio recordingand playback systems

Denon has debuted theDN-80R, the first profes-sional MD recorder designedfor portable use. Special fea-

tures include a 40 -second RAM inputbuffer, battery operation and built-inspeaker. Also new were the DN-790Rprofessional studio cassette deck andDN-740R double -well cassette deck.

Fostex displayed the PD -4 portabletime -code DAT recorder, featuring a 3 -input mixer, phantom power, confidencemonitoring and a 2 -hour battery.

Henry Engineering premiered theTelestor digital actuality recorder. It au-tomatically answers a phone call and,after password detection, begins record-ing the phone line audio for up to 80seconds (or up to 5.5 minutes in the XAfversion). The message can then be playedback manually or automatically. Theunit includes end -of -message signallingand an insert point for audio processing.

Otari announced RADAR View, agraphics software package for the RA-DAR hard -disk multitrack recorder. Itprovides a workstation -like display oftrack contents, levels, time -code andother data to an SVGA computer moni-tor. Also shown was ADAT Link whichenables direct digital porting of ADATaudio tracks to RADAR

Pioneer New Media Technologies ex-hibited its line of computer -controllableCD jukeboxes, which ranges from asmall 18 -CD unit to a 300 -CD system.

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Audio processing andstorageBy Christopher H. SchererScherer is chief engineer of WMMS-FM. Cleve-land.

Analog and digital recorders and au-dio processors were, as always, found inhigh numbers at NAB 95. The quality ofnew products in this area was particu-larly impressive this year.

On -air audio processingOrban showed its PC Remote Soft-

ware for the Optimod 8200. Runningunder Windows, it provides remote con-trol, storage and up/downloading of allsettings on the 8200 and full meteringon the remote PC's screen.

Cutting Edge Technologies showedVersion 4 software for the Unity 2000iFM processor and the UnityAMproces-sor, which enhances both devices' dial-

trol. It includes analog and digital in-puts, 5 -band compressor, 3 -band lim-iter, CRL stereo enhancement andDynaFex noise reduction.

AEV introduced the Mirage FM audioprocessor, a 3 -band unit with a digitalstereo generator. Other additions to theAEV line are the Luxor stereo enhancerand the Thunder composite processor.

Circle (81) on Reply Card.

Studio audio processingEventide presented the DSP4000B

Broadcast/Production Ultra -Harmo-nizer, containing a set of processingprograms created especially for radioand post -production. The hundreds ofpresets include high -quality reverb, pitch -shift and time compression/expansionprograms, along with digitally sampledsound effects and background ambi-ences. The unit, therefore, functions as aunique, combined processor/sampler/sound -effects library. User settings canbe stored internally or on PCMCIAcards.

Ramsa/Panasonic offered the Mg-DE40, a digital multiprocessor withcompression, limiting, graphic EQ, para-metric EQ, spectrum analyzer and anautomatic notch filter for feedback sup-pression. Also displayed was the similar


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NAB 95 ReviewEventide introduced a "Hi-Fi" audio

board for its VR240 DAT logger. It offersextension of high -frequency responsefrom the standard 3.4kHz cutoff to 7.2,12.4, 14.4 or 21.6kHz, and it upgradesthe corn criers from 8 -bit to 16 -bit design.

Roland showed the AR -2000, a 1RUdigital audio recorder/player that is well -suited for any dedicated phrase -play-back situation. Also on display was theMS-/, a small sampler capable of stor-ing 32 samples internally, with more onoptional flash -ROM cards.

The Instant Replay was unveiled by360 Systems, featuring imme-diate access to 500 individualaudio cuts of any length. (See"NAB 95 Pick Hits," p. 36.) Thecompany also presented severalenhancements to its premiereproduct, theDigiCart/II, includ-ing improved Windows softwarefor con trol/display of up to threeDigiCarts. Also new was the D-NEThigh-speed file transfer net-work, which allows transfer ofdigital audio between 360 Sys-tems products at 8x real time.

Sony introduced the PCM-800digital multitrack recorder,using the Hi8-based DTRS for-mat, and the PCM-2600 DATrecorder, with a 4 -motor trans-port, Super Bit Mapping andparallel remote control. Thenew, lower -cost DTC-A8 DAT recorderfeatures unbalanced analog I/O andremote footswitch control.

Nagra has developed the ARES-C asolid-state recorder built in the famil-iar fashion of Nagra machines, but re-cording to PCMCIA cards (which canbe changed while recording). On -board,non-destructive editing is also possible,and a built-in ISDN interface allowsdata -compressed transmission.

HHB showed its time -code portableDAT recorder, the PDR I 000TC. Atime -code back-up feature allows theinternal time -code generator to con-tinue running while the user changesbatteries. A 4 -bay battery charger forthe Portadat line was also shown.

Marantz presented two new rack -mount cassette decks, the PMD501and PMD502. The PMD502 featurespitch control, automatic level control,Dolby -C and HX-Pro, and balancedXLR I/O.

Tascam premiered theDA-20, a rack -mount DAT with multiple samplingrates, S/PDIF I/O and wireless remotecontrol. The DA -P1 is a new portableDAT with a 2 -hour battery pack, bal-anced XLR mic/line inputs, S/PDIFI/O, RCA analog I/O and a built-inspeaker. The new RA-30Mstereo Mini -Disc recorder offers editing, a jog wheel

and a link capability for extended re-cording. Tascam also unveiled two rack -mount CD players, the CD -201 andCD 301 Mk11.


Audio recording mediaAmpex premiered the 489 EP, an S -

VHS cassette designed for use in theADAT-format recorders that featuresextended (60 -minute) length. The 488Hi8 tape is designed for use in theDTRS-format audio recorders, and isavailable in 30-, 60- and 113 -minutelengths. Ampex also introduced a re-

cordable CD and a Data DAT, theDDS.

Maxell showed its CD -R media, theCW-63 and CW-74, with 63 minutes/580MB and 74 minutes/680MB ofstorage capacity, respectively. Also ondisplay was a 3.5 -inch magneto -opti-cal disc and a T-160 VHS cassette intwo different formulations. Denon andHHB also added CD -R blanks to theirlines of recording media.

Sony showed the DARS 116 Hi8cassette optimized for use with DTRS-format digital multitrack recorders, andthe DASV-40 S -VHS cassette for usewith ADAT-format decks.

Apogee showed the AD series ofDAT tapes, which feature extendedarchival life, a special hub clamp tominimize end -of -tape damage and alubrication sheet to reduce friction.

Circle (84) on Reply Card Back haul and distributionBy Steve KirschKirsch Is president of Silver Lake Audio. a re-mote engineering and equipment rental firmin Baldwin, NY.

ISDN has stepped to the forefront ofthe audio backhaul business. It hasbecome the focal point for new productdevelopment, and was a hot topic of

conversation on the floor at NAB 95.Codecs

Telos Systems announced that itwill now incorporate ISO/MPEG LayerII coding into its Zephyr digital trans-ceiver. Telos still recommends LayerIII coding at lower bit rates (56 or64kb/s). Layer II software upgradeswill be supplied at no charge to Zephyrowners. (At the BSW booth, the morn-ing drive jocks from a popular HongKong radio station used a Zephyr andISDN lines to feed their show homelive each day.) Telos also introduced

Zephyrnet, an ISDNmultipoint audio distributionsystem. (See "NAB 95 PickHits," p. 36.)

Corporate Computer Sys-tems (CCS) introduced itsthird- generation codecs, thePrima. It is designed as a codec"platform," allowing the userto configure a codec to a givenapplication and budget. Primasupports earlier CCS codecs(both Musicam and G.722),standard Layer II codecs, andCCS's latest, MUSICAM '95.A wide array of options areavailable, including modifica-tion of coding parameters viaWindows software. CCS alsounveiled its Fieldfone, aMUSICAM-based codec that

operates over POTS lines. (See "NAB95 Pick Hits," p. 36.)

Intraplex unveiled a compact andlightweight portable ISO/MPEG LayerII codec. The Series 4400 weighs in atless than 10 pounds and contains abuilt-in ISDN TA. Nine ISDN configu-rations can be stored in memory andactivated via a front -panel selector. Anoptional external keypad is used toprogram the unit.

MPR Teltech showed its Capellacodec, an ISO/MPEG Layer II devicedesigned as a PC -expansion board.The unit is also featured in MPRTeltech's Polaris reporter terminal,which includes I/O hardware and digi-tal editing software for a notebookcomputer. (See "NAB 95 Pick Hits," p.36.)

Comrex presented its Layer II codec,the DX200. It includes a built-inBONDING inverse multiplexer(IMUX), enabling the user to createchannels of up to 256kb/s. Comrexalso announced that its G.722 codecshave been upgraded to provide audiobandwidth of 15kHz mono over a112 or 128kb/s line. This uniqueapplication retains G.722's advantageof low delay time and low cost. For usein the field with any codec, Comrexintroduced a field mixer, the Codec


NAB 95 ReviewBuddy. (See "NAB 95 Pick Hits," p.36.)

Audio Processing Technology (APT)featured theDRT 128, a codec/reporterterminal that includes mic, line and datainputs and headphone output. TheDSM100 uses three ISDN lines for 20kHzstereo on 336 or 384kb/s. Also newwere the RMC 240, which adds ma-chine -control capability to API' codecs,and the MCE'MCD 800, which allowstransmission of up to eight channels offull -bandwidth audio on a T1 circuit.

Dolby Laboratories' versatile 520series codecs support the company'sAC -2 and AC -3 algorithms. (AC -3 oper-ates with up to 5.1 channels for sur-round -sound applications, but thesecodecs handle only its 1- or 2 -channelmodes.) Between the two algorithms,these codecs will support transmissiondata rates from 56 to 384kb/s anddigital audio sampling rates of 32, 44.1or 48kHz, plus auxiliary data rates of600, 1,200 and 9,600b/s.

One product not intended for ISDNcame from Lightwave Systems, whichshowed the FIBOX digital fiber-opticaudio transmission system. (See "NAB95 Pick Hits," p. 36.) This system putsup to 12 channels of uncompressed 20 -bit digital audio on a fiber-optic cable of

2.5mi length.Circle :85) on Reply Card

Store and forward systemsDigital Courier International (DCI, a

subsidiary of MPR Teltech) is a privatedigital network that provides Windowssoftware and Layer II codecs to accom-plish its interconnection with affiliates.Any subscriber can initiate point-to-pointor point -to -midpoint distribution fornon -real-time transmissions through thenetwork.

Another private network operator isDG Systems, which specializes in dis-tributing commercials to radio stations.It announced that it has added its2,000th affilia te.

Circle 186) on Reply Card

Satellite distributionLNR Communications was promot-

ing its DAVSAT'system, a flexible, modu-lar design capable of being expandedand configured for the specific needs ofa user's network. The system is currentlyin use by the RCN Radio network inColombia.

On a global scale, Orion Atlantic isdistributing SCPC audio through itsOrion 1 satellite to subscribers in Eu-rope and North America, via a high-performance, small -antenna package.The company specializes in turn -keysystems, handling all hardware, licens-ing and installation.

Antenna Technology Corporation, Inc.

(ATCi) solves the space (and zoning)problems many stations face with itsSimulsat Five and Simulsat Sevenmultibeam antennas. These can cover35 or more satellites with a groundrequirement of only 1.5 times that of astandard parabolic antenna. To controlsatellite dish position, the ATCPL4100/4200 Antenna Tracking Controllerstores up to 70 sets of satellite acces-sion data.

Circle (87) on Reply Card OOOOO

AUDIBLERESULTS.

Routing switchers, wire/ca Die and test equipmentBy 'Terry BaunBaun is president of Criterion Broadcast Ser-vices. a broadcast contract engineering firm inMilwaukee.

As the hardware and programming ofradio becomes increasingly digitized, soto must the in-house distribution andmonitoring capabilities. NAB 95 pro-vided giant steps toward this end.

NEW BELDEN° DicrrAL AUDIO CABLES...110 OHM IMPEDANCE DESIGN PROVIDESERROR -FREE TRANSMISSION OVEREXTENDED DISTANCES.

Suppose you need a digital audio cable that meets the

latest AES/EBU standard? Simple! It has to be high flex?

Or NEC' rated? You got it! A patch cable? Or snake?No problem when you specify Brilliance' from Belden.

Belden has developed three new Brilliance cable lines to meet the digital

audio needs of your television, radio, post -production or recording

studio. And deach offers tight impedance tolerance and lowcapacitance unbalance to minimize signal reflections and jitter.

High Flex Cable (Belden No. 1696A)

Cables available in 1 pair CM rated (BeldenNo. 18D0A), 1 pair CMP rated (No. 1801A),

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NEC Rated Snake Cables in 4 pair(Belden No. 1803A), 8 pair (No. 1805A),

and 12 pair (No. 1806A)

Circle (20) cn Reply Card

BE RADIO, May/June 1995 . 29

NAB 95 ReviewThink ofThem as

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Audio routingThe AMI6/B crosspoint switcher

presented by 360 Systems expands outto 16x16x4 and features a remote -con-trol panel, serial bus control and 100programmable presets.

ADC Telecommunications providedsignificant tools for integrated digitalrouting with the LightSwitch router andLightLink converter products, whichhandle all digital signals regardless offormat. Also shown was the FL2000fiber cable management system, pro-

viding a convenient and logical systemfor termination, connection and splic-ing of optical cabling networks. ADCalso showed a fiber-optic transmissionsystem called Sigma Net, which handlestwo data channels and up to 64 audiosignals with 20 -bit quality.

Dynair Electronics introduced theSeries 36 stereo audio router, featuringhigh crosspoint density (864 per RU). Itcan be connected via Ethernet to DOS -based system controllers.

NVISION displayed the enhancedversion of its Digital Audio ProcessingSuite (DAPS), which provides digitalaudio interface, conversion and syn-chronization solutions for productionfacilities. DAPS II allows a user to route16 digital I/Os; mix, amplify, and at-tenuate channels; delay audio to cor-rect sync; and convert any incomingsample rate to the desired outputsample rate.


Audio test equipmentAudio Precision (AP) introduced Sys-

tem Two, a powerful, dual -domain au-dio testing system. As with AP's well-known System One, System Two isdesigned to be used with an externalcomputer, and can be connected to alaptop via a PCMCIA card. The com-pany also announced APWIN Win-dows -based software for the SystemOne, with versions available for Win-dows 3.1 and Windows 95.

Neutrik Instrumentation USA featured

the A2/A2-D audio measurementssystem for analog and digital audioanalysis. This portable, self-containedunit features an LCD screen, a 4 -graph memory and a printer port. TheA2 -D also offers analysis of AES/EBU, consumer and optical digitalformats.

Tektronix presented the 764 digi-tal audio monitor, which operates asan audio phase and level meter aswell as a digital data monitor. Theself-contained unit features a built-in

CRT display and a VGA port. Data canbe stored and errors can be time -stamped with the 764's internal clockor external time code.


Audio cablingGepco International added to its

lineup a dual -channel, low -profile,shielded -pair cable (D72401EZ) anda 2 -pair supplement to the existingGA724M series of audio cables(GA724302M). Also on hand weresome examples of the company's cus-tom-built and engraved panels, fabri-cated in 1/16.. and '/s -inch aluminum,anodized or laminate, in a variety ofcolors.

New from Canare Cable was a seriesof impedance transformers that con-vert AES/EBU 110W XLR-type inputsto 75W BNC outputs. The devices alsocome in a IV p -p version with a built-inattenuation pad.

Nemal Electronics highlighted itsspecialty of supplying short runs(<1,000') of specialized cables, eitherwith or without terminations. Customaudio/video patch panels were alsoexhibited.

Switchcraft showed new 'Mack pan-els and TT plugs (Model 7T253N).Also new was the 3502 series of heavy-duty RCA phono plugs, in 1311Th nickeland gold, with nickel-platc( I ( )r blackepoxy handles.


Continued on page 33Circle (21) on Reply Card

30 BF; RADIO, May/June 1995

NAB 95 ReviewContinued from page 30

RF equipmentBy John BattisonBattison, BE Radio's consultant on antennasand radiation, own:. John H. Battison and Asso-ciates, a consulting engineering company inLoudonville, near Columbus, OH.

New RF products blossomed all overthe exhibit halls and outside in themobile exhibits. While it isn't possibleto describe every product shown, therewere many new items that deserve men-tion.

Broadcast transmissionThe top story at the show in this

category was USA Digital Radio's mo-bile AM and FM in-band/on-channel(IBOC) DAB demonstration. A smallbus equipped will headphones and A -Bswitches at each seat was used to trans-port listeners around the Las Vegas areafor listening and comparing the analogand digital signals. Although no actualproducts were exhibited, National Semi-conductor presented a small "dummy"chip that could contain both the AMand FM IBOC-DAB receiver electron-ics. (See "Editorial," p. 4.)

Harris Allied provided transmissionequipment for both the AM and FMIBOC DAB sysi ems, as well as studioorigination equipment for the AM sys-tem. The AM analog and DAB signalswere broadcast on experimentally li-censed KUSA-AM at 1,660kHz, whilethe FM DAB signal was a high -level -combined (15kW FM, 1 kW DAB) si-mulcast on KUNV, 91.5MHz (licensedto the University of Nevada, Las Vegas).

Elsewhere in the Harris Allied boothit was announced that the DIGITdigitalFM exciter is now standard in all HarrisFM transmitter; above I kW. Anotherdisplay showed the newbcpanded PowerAmplifier Cabinet (EPAC) technologythat makes it possible to build 2,000kWtransmitters. Harris also handed out aworthwhile booldet entitled, "EverythingYou Wanted to Know about DAB, ButWere Afraid to Ask."

Continental announced the co -devel-opment with Sine Systems of a "smart"transmitter using Embedded Diagnos-tic Unit (EDU) technology on the 816Rseries FM transmitter. EDU is a micro-processor -based diagnostic device in-stalled inside the transmitter that moni-tors and stores data on critical operatingparameters. It includes an internal mo-dem and RS -232 port for connection toa local or remote PC running the com-panion EDUchat (Windows -based) soft-ware. The data storage feature allows thestation's or manufacturer's service per-sonnel (at their home facilities) to re-

view the transmitter'sreadings at the exactmoment of a failure,or track operating con-ditions over a long pe-riod. EDU can alsoserve as a transmitterremote -control sys-tem.

Jampro had itsusual, interesting dis-play of FM antennason hand. Emphasisseemed to be on di-rectional FM anten-nas, where much of thecompany's recent de-velopment has beenfocused.

Larcan/TTC high-lighted its line of solid-state FM transmitters,which range from1 kW to 8kW. TTCalso presented its well -established FM trans-lator products.

Phasetek displayedits phasing and dog -house equipment,among which was an overcurrent detec-tor for AM stations. This device keepspower within legal limits or shuts downthe transmitter.

Broadcast Electronics showed its FM -5C 5kW solid-state FM transmitter.With redundant power supplies and PAs,the unit provides its own backup inemergencies. It can operate into VSWRsas poor as 3:1 and can handle wideinput -voltage swings.

Marti unveiled the ME -40, a 40WFM exciter that combines high specifi-cations with low cost. Also new was theSR -I0, a frequency -agile RPU receiverwith full remote -control capability and

six preset, scannable channels.Nautel presented an impressive

60kW, fully solid-state, frequency -agiletransmitter and its growing line of FMsolid-state transmitters. Also displayedwas the NE5O, a digital FM exciter withcomposite or AFS/EBU input.


Other RF equipmentBelar Electronics laboratory showed

the FMSA-1 FM digital stereo monitor,the REDS -1 RBDS monitor, DSD-1digital stereo demodulator and the Sen-try 16 audio and status alarm system.The RBDS monitor should be espe-cially useful for FM stations moving intoRBDS service.


NAB 95 ReviewMoseley showed the latest on Starlink

9000, an all -digital, modular system forhigh -quality point-to-point audio trans-mission. Its modular design allows cus-tomized configurations for a variety ofapplications.

SCA Data Systems presented its 9600system, which includes a generator andcompatible receivers that produce es-sentially error -free subcarrier service at9,600b/s for better than a 30 -mileradius (10-6 BER at 3µV).

At the TFT booth, a short programexplaining the Emergency Alert System(EAS) was presented continuouslythroughout the convention. Prototypesof TFTs EAS equipment were also dem-onstrated, but prices and availabilitycould not be quoted because final FCCtype -acceptance had not yet been re-ceived. Some handy printed material onEAS was also distributed.

DB Elettronica showed two frequency -agile composite STLs, the STL-1 andSTL-2. They operate in the 890-960.400-480,280-340 and 200-260MHzbands, at 10kHz steps, with power out-puts of 5 to 20W. Also on display wasthe PM -300, a combined FM exciter,stereo generator, audio processor andPA with an output of 0 to 250W.

Users with a C -band uplink will beinterested in the Varian VKC2936R24fast -tune klystron. This de-vice makes it possible toretune a transmitter in sec-onds.

On the Ku -band side, EEVfeatured Stellar, a range ofKu -band satellite commu-nications amplifiers.

Burk Technology pre-sented the BDT-115, whichadds RF linking to its ARC -16 remote -control system.(See "NAB 93 Pick Hits," p.36.)

With the increased em-phasis on RF radiation, theLoral Microwave-Narda8718 survey meter willcome in handy. The com-pany also presented a catalog of RF-environment data.

Bird Electronics showed its familiarpower meters, but took pains to pointout that it also makes a varied line of RFfilters.

QEI premiered a digital stereo gen-erator, the Model 710, featuring true24 -bit processing. The company alsopresented AES/EBU capability and in-tegral stereo generation for its CAT -Linkdigital STL


Broadcast towersIn these days of tight money, it was

refreshing to hear Stainless Towers offer

its own leasing plan. This is easier thandealing with a financial company thatdoes not understand why a radio stationneeds an expensive tower. Stainless Tow-ers also offers tower insurance inspec-tions.

Flash Technology presented theEJectrollash FIB 312 series for use ontowers of 500 feet AGL or less. Thiscost-effective system uses a moveablered/clear color shade for red nighttimeand white daytime operation from asingle flashtube. In event of primarypower failure, the system automaticallyswitches to 24VDC operation.

Magnum Towers offered a useful, fact -filled tower book that should be inevery engineer's library. It is not lengthy,but it contains good, basic data ontower usage.


Studio support equipmentand field accessoriesBy Terry SkeltonSkelton Is an audio consultant and trainer basedin Bucks County, PA.

The NAB convention is always agood place to hunt for those hard -to -find but extremely helpful little prod-ucts that can best be classified as

"miscellaneous." Following is a lookat what turned up new in this wide-ranging category.

Communications productsTelex introduced 14 RTS intercom

products, two Audiocom intercom prod-ucts and one Radiocom wireless IFBsystem. Moat noteworthy among thenew KM products were the Adam andAdam CS intercom systems, digital au-dio matrixes that provide CD -qualityaudio, level adjustment on each chan-nel at each intercom panel and back-ward compatibility to work with CS9000components. ADAM is also expand-able to more than 1,000 ports.

Clear-Com expanded its product linefor the successful Matrix Plus II com-puterized intercom system by showingthe ICS52 and ICS -92, 1RU inter-com stations with bright, easy -to -readLED labels over every key. Also onhand was theAP-22 assignment panelproviding push-button routing of anyaudio source to any IFB destination.Other new products were the AB -100on -air announcer's console and severaladditions to the PL -Pro line of inter-com stations.

Digital audio workstation users canget routing, monitoring and communi-cations in a 1RU package from StudioTechnologies' Model 60 and Model61 Studio Comm products. The com-pany also demonstrated IFB Plus, aversatile, 2 -channel IFB system formobile units.


Interfaces and adaptersTheMatchboxgot an update toMatch-

box H by Henry Engineering. The im-provements include more gain, leveladjustment on unbalanced outputs,gold-plated isolated RCA jacks, a 3 -wireAC cord and reduced noise.

Radio Design Labs showed theconnectorized line of Rack -Up prob-lem -solving products, ranging frommeters to DAs to mic pre -amps. These

provide the utility of theRadio Design Labs Stick -On products with rack -mount versatility. The 7Xseries offers four stick -ontransformers for connect-ing almost anything, includ-ing a line -level input froma 70V or 25V speaker line.

Sescom added two XLRbarrel -adapters. The ISO -5has a row of DIP switcheson top to allow you tochange pin connections onthe spot. The ISO -6 is a 3 -position switchable pad (6,12 or 18dB attenuation)designed to approximate

a bridging load for low -impedance mi-crophones.


Audio distributionand monitoring

Wheatstone showed the Audioarts8400 high -quality audio DAs with a2x8 or 4x4 configuration, 15 -turn pots,separate 3 -conductor connectors foreach input and output and frequencyresponse from 20Hz to 20kHz ±0.1dB.A rack -mount intercom panel also wasoffered for interfacing to Wheatstoneconsoles.

Up to 80 channels of audio may beautomatically monitored for loss of sig-


NAB 95 Reviewnal or polarity inversions on Wohler'sACM1, which requires only 1RU. Anaudible alarm and LED tell you whichchannel has gone bad. Wohler alsoshowed ARS-series AES/EBU digitalrouting switchers and the SDAE- I, aserial digital audio extractor option forWohler audio monitors. The DLM- Iand DLM-2 LED meter panels provideaccurate AF.S/EBU level indication in10- or 20 -segment displays, respectively.

ESE showed the ES -2I 7/XLR, a I x4audio DA in a small metal box with XLRconnectors, balanced or unbalancedoperation and separate lewl controlson each output.

Press distribution boxes occupiedcenter stage at tie Opamp Labs booth,but other problem solvers included theVA-14/SUMG, t 6x1 active combiningaudio amp with RCA connectors.

Crown International presented the D -75A and D-45 audio power amplifiers,both 1RU devices with detented front -panel level controls and barrier -blockoutput connections.

Circle (FM on Reply Card

Digital audio conversionFostex introduced the FSC-1 sample -

rate converter. Accepting AES/EBU, S/PDIF and optical inputs, the 1RU de-

vice can convert any signal with a sam-pling frequency from 22kHz to 55kHz,and can provide output frequencies of32, 44.056, 44.1 and 48kHz.

Otari presented the LIF('-24 univer-sal digital audio format converter, whichcan convert up to 24 channels at once.It supports five different formats (AFS/EBU, ADAT, TDIF-I, RD and SDIF-II).

Apogee offered the AD- I 000 20 -bitA -to -D converter with flexible synchro-nization and a variety of digital outputformats, including ADAT. Also shownwas the DA1000E-20, a D -to -A con-verter with similar characteristics, andthe Cl/4000, a CD mastering encoderthat provides effective 20 -bit perfor-mance using the 16 -bit CD format.

The staff at the Yamaha booth recom-mended theZ-link sample -rate converterfrom Z -Systems Audio Engineering foruse with Yamaha's ProMix 01 digitalprogrammable mixer. The ProMix's digi-tal output is 48kHz only, and the rea-sonably priced Z -link converter provides44.1kHz for CD work.


Other productsSuperior Electric presented some

additions to its Stabiline power -treat-ment products, including the SP series

of standby power supplies for PCs andworkstations. The SL series regulatesvoltage and shuts off its battery if noload is present. The UPSY series gener-ates clean power continuously and onlydraws on the battery when utility voltagedrops below 96V.

Winsted showed the Digital Desks,designed for digital workstations. Thesecurved desks are finished in black gran-ite laminate and are available in fivedifferent models and two desktopheights, with adjustable monitor shelves.

FSE introduced the ES I 85 GPSmaster clock that is continuously lockedto the GPS satellites, but also has a 4 -hour battery backup and an internalcrystal. The ES -181 is a master clockthat automatically receives time infor-mation four times a day via an internalmodem, backed up by a crystal.

Since January 1995, Illbruck's Sonexacoustic foam has been made of a sub-stance called Willtec, which no longergives off poisonous gas when burned.The product is virtually fireproof andcontains no fibers. Also displayed werefabric -covered foam panels in six colorsthat can be thinner than standard Sonexfor the same perfOnnance.

Circle (98) on Reply Card61

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Circle 117i on f1,ply Cird

RADIO, May/June 1995 . 35

NAB 95Pick Hits

Once again, BE Radio assigned its band ofrovingjudges to scourthe floor at NAB 95 for the top 10 new radio products. The judgeswere selected from diverse backgrounds and experience, includingsenior engineering and technical management from network,group, station and consulting/contracting organizations. (See "NAB95 Pick Hitsfudges," p. 39). After some tough deliberations, theycame up with the following products.

Symetrix: 610 broadcast audio delayTalk radio's increasing popularity has motivated another manu-

facturer to move into the field of on -air delay. This unit adds a fewnew wrinkles, yet remains competitively priced. First, the speed atwhich the automatic delay build-up occurs can be adjusted by theuser - slower delay growth retains higher audio fidelity. Second, the"dump" function can be set to operate in two stages, such that onlyhalf of the system's 7.5 -second delay is lost when clumping a caller.This allows you to go immediately to another caller instead ofhaving to wait for delay to build up again before taking another call.The system also offers a "shrinking" of delay, providing a dynamicexit from the delay mode as a show ends - just the opposite of whathappens at the beginning of the show. Finally, a "cough" functionallows you to momentarily mute the input to the delay buffer, while the buffer's output continues to feed theair. This gives you a few seconds to say or do something that won't be heard on the air, without any noticeablepause or glitch. The 610 is a true stereo delay, and includes a remote-control/status port.

For more information, circle (62) on Reply

a

Comrex: Codec Buddyremote audio console

Doing live remotes via ISDN has b( nne popular, but it can still be inconvenientto interface all the necessary hardware to the codec at the remote site. Fueled by thisexperience, the designers at Comrex have put together a single, compact and highlycost-effective device that handles nearly everything you'll need to have around yourcodec on a remote. It starts out as a 4x1 mixer (two mic inputs, two mic/line inputs),then adds a flexible 4 -output IFB and a telephone interface. The latter can be usedeither for communications or for backup program transmission (in which case aninternal single -line frequency extender can be switched in). Two additional IFB inputsarc provided for feeding the codec return and/or local mic/line input(s) - such asa spotter, director or intercom audio - to the remote crews headphones. A separatemix output is provided for feeding a local P \ system, especially useful on a coderremote because of the high -quality ISDN (1 urn signal al the remote site.

For more information, circle (58) on Reply Card.

CCS Audio Products: Fieldfonecodec system for POTS lines

New ground is broken by this handy unit, the world's first self-containedPOTS (Plain Old Telephone Service) codec. It provides approximately 71(117:bidirectional audio on a single standard dial -up telephone line, using avariant of MUSICAM coding with V.34 (28.8kb/s) modems. The unitincludes an internal telephone keypad and hybrid with function and speed -dial memory and display (2 -line LCD). Also on board arc mic-level (balancedXLR) and line -level (balanced XLR or unbalanced mini -jack) inputs, plusmic/line mixing and local/return monitor mixing to 14" or mini -stereoheadphone jacks. Another useful feature is the Fieldfone's record output (onmini -jack), which offers an independent level control and a "balance" knobto set the relative levels of local and return audio for recordings made directlyfrom the unit. The Fieldfone is packaged in a rugged, portable case.



Gentner: Telehybrid digitaltelephone interface

Adding to the growing line of user-friendly telephone interfaces from thismanufacturer, de Telehybrid reaches new levels of simplicity and value. This digitalhybrid connects to your existing studio phone between the handset and the phoneinstrument (via RJ-11 connectors), thus retaining all of your house phone system'sfunctional attributes. Audio connections to your mixing console's line input andmix -minus output are made via XLRs. Physically, the Telehybrid is a black boxsomewhat remir.iscent of the old acoustic -coupling modems, which sits next to thestudio or control -mom phone. When you want to put a call on the air, you simplyplace the telephone's handset on top of this box. Contrary to its appearance, theblack box isn't a coupler - it's only a switch. The weight of the handset on the topsurface of the black box directs the call in progress away from the handset and intothe digital hybrid for interface to the mixing console. You can pick up the handsetat any time and talk to the caller privately, then put the handset back down on theblack box and tie caller is back on the air.

For more Information, circle (59) on Reply Card.

MPR Teltech: Polarisreporter terminal

This unique device combines a portable digital audioworkstation with a data compression codec and telcoterminal equipment to provide a complete field record-ing and production package for radio reporters. ThePolaris system includes both hardware and software, foruse with most notebook PCs. The hardware unit isdesigned to sit under the notebook PC and connect to itvia a PCMCIA type II/III interface. Also on the hardwareunit are analog mic and line inputs, digital (AES/EBUand S/PDIF) inputs and outputs, a headphone outputand an MPR Teltech Capella codec card, offering ISO/MPEG Layer II and CCITT G.722 algorithms. The codecsupports input sampling rates ranging from 16 to 48kHz,and transmission data rates from 8 to 384kb/s, for bothreal-time and non -real-time transmission. The hardwareunit also contains the user's choice of an ISDN terminaladapter or a high-speed POTS modem. Users can alsochoose the type of digital audio editing software they wishto have included with the system - operating either inlinear PCM form (.%AV file format), or on Layer IIcompressed files (using an editor developed by theDutch firm, Arbor Integrated BV).


Burk Technology:BDT-115 RF data link

Another broadcast -industry use for the unlicensed 902-928MHzband has been launched with this unique product, which provides anew pathway for control and status indication of remote transmittersand other devices. It provides a bidirectional data link of up to115kb/s, using frequency -hopping spread -spectrum transmission.The link is des fined to connect the studio and remote units of Burk'spopular ARC -16 remote -control system in "plug -and -play" fashion,replacing the dedicated telco data lines, TSL telemetry returns or FM-subcarricr channels currently used for this purpose. A number ofdifferent antennas are available for the BDT-115, permitting line -of -sight use on paths of up to 20 miles, and perhaps significantly furtherunder some conditions. The manufacturer will perform a free RF pathanalysis to determine a facility's exact system requirements. Thespread -spectrum coding used allows up to 100 units to be operatedat the same location, so the use of several systems at a multistationtransmission site will not pose a problem.

For more Information. circle (56) on Reply Card.


Wheatstone: D-500 digital on -air consoleLooking like a perfectly normal on -air console, this ground -breaking unit heralds a new era

in radio broadcasting. The D-500 makes it possible - even easy - to interface both digital andanalog sources to digital and analog output buses. This isjust what the doctor ordered for the end of the analogepoch, making the final transition to digital a relativelypainless process. The console handles 48, 44.1 and32kHz-sampled signals simultaneously, and provides 18-bit conversion for analog inputs and outputs. Its decep-tively tame exterior houses four 40 -bit DSPs and 25microcomputers to accomplish this, providing users witha familiar control surface for the functionality that isnormally associated with integrated PC -based systems.Each input has its own RS -232 output for intelligentcontrol of its source device (along with traditional clo-sures), and console setups can be stored. The D-500 canbe slaved to the control of an external computer, andsoftware upgrades, data transfers, diagnostics or remotecontrol can be handled via the computer's internal mo-dem. Talk radio users will enjoy the console's automatic, adaptive digital mix -minus busing.The system's open architecture allows easy software and hardware upgrades in the future.


Telos Systems: ZephyrNet ISDNmultipoint audio distribution system

Designed for use as a programmable audio distribution system or as an automaticsatellite -network backup system, this clever device is actually a PC with ISDN and

control interface cards, plus Windows software. You connect theZephyrnet to an ISDN Primary Rate Interface (PRI) line, by whichit can feed up to 23 separate sites with 64kb/s connectivity to each.(Each site requires ISDN Basic Rate Interface IBRII or Switched -56service and a Telos Zephyr codec/terminal adapter.) AdditionalISDN PRI lines and expansion boards can be added to feed up to200 sites. Using ISO/MPEG layer III coding, the Zephymetsendshigh -quality (15kHz mono) audio plus 9.6kb/s auxiliary data toeach site. Alternatively, ISO/MPEG Layer II or G.722 coding canbe used. (The originating program -source location's' must also havea Zephyr to encode the audio - there are no codecs in theZephymet itself.) The Zephyrnet software can be configured toautomatically call all or any subset of its distribution sites uponlocal or remote command or at pre-programmed times. Multiple

source programs can be managed by a single Zephyrnet, so different distribution sitescan receive different programs simultaneously.


Lightwave Systems: Fibox digitalfiber-optic audio transmission system

Useful for both permanent and temporary applications, the Fibox system brings unprecedentedcost-effectiveness to digital fiber-optic audio transmission. The system's '/.1 -rack modulescombine simple, compact operation with top-notch audioquality. On the transmit end, the FBAI-M module offers twoXLR mic/line inputs (with high -quality mic-pre-amp, gaintrim, overload LED and phantom power), 20 -bit delta -sigmaA/D converters (48kHz sampling and 64x oversampling)and a 1,310nm fiber-optic output driver. At the receive end,the FBAO-M module includes a fiber-optic receiver, 20 -bitco -linear D/A converters and +4dBu balanced analog out-puts on XLRs. Overall dynamic range is specified at 108dBthrough the system, and transmission distances of up to 4kmare possible using multimode fiber. Up to five 2 -channelslave modules can be added to each end and linked viamultipair cable to the master modules, allowing a single fiberto carry up to 12 channels of 20 -bit digital audio. Alternativeoutput modules offer AES/EBU digital output (on XLR or BNC), with front -panel selectable outputsampling rates of 32, 44.056, 44.1 and 48kHz, or synchronization to an external source.


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NAB 95Pick Hits JudgesJohn Battison, P.E.Consulting Eng neerBattison & Associates,Loudonville, OH

Margaret BryantDirector of Eng neering and

Technical OperationsABC Radio Networks, Dallas, TX

Kirk HarnackPresidentHarnack Engineering, Memphis, TN

Andy LairdVice President Engineering,

Radio GroupHeritage Media, Santa Clarita, CA

Richard RudmanEngineering ManagerKFWB/KTWV - Group W Radio,Los Angeles, CA

Chriss SchererEngineering ManagerWMMS-FM. Cleveland, OH

Milford SmithVice President /Radio EngineeringGreater Media. East Brunswick, NJ

Mike StarlingDirector of Technical OperationsNational Public Radio,Washington, CC

Ellis Terry, Jr.Regional Operations DirectorDouglas Broadcasting,Pasadena, CA

Andy VallonManager, Tecnnical ServicesCBS Radio Ne -works, New York, NY

360 Systems: Instant Replayhard disk audio player

This fully self-contained, simple -to -use digital audio stor-age system can hold up to 1,000 cuts of variable lengths.Total storage capacity is four hours (model DR -550) oreight hours (model DR -580) of stereo, 48kHz-sampledand Dolby AC -2 coded audio. Up to 500 cuts at a time canbe assigned to 50 control -panel "hot keys" for instantplayback access using 10 different storage registers forbutton -assignment mappings. Balanced analog (+4dBu or-10d BV) and digital (AES/EBU or IEC 958 Type 11)1/0 arepro\ ided, along with an internal sampling -rate converter,which supports incoming rates ranging from 24kHz to56kHz. Cut libraries are displayed on a 2 -line fluorescentscreen, and a parallel printer port allows sorted, hard -copylists to be printed on computer printers. Cuts (audio plusdata) can be transferred between multiple Instant Replayand/or DigiCart/II units via their RCA digital jacks at 8xreal-time. A separate preview output allows headphonemonitoring off-line, and the "hot keys" double as an alpha-numeric keypad for titling and searching functions.

For more information. circle (55) on Reply Card.

BE Radio Pick Hits rules

BE Radio's Pick Hits judges operate anonymously. Each year they look for newproducts that meet the following criteria:

1. Products must be new and not shown at a previous NAB Convention. In somecases, distinguishing a new p-oduct from a modified older one is difficult. ForPick Hits purposes, a new product is one with a new model number or designa-tion.

2. Products must have some positive impact on the intended user's everydaywork. Judges search for equipment to be used on a regular basis. Productsshould provide new solutions to common problems.

3. Produces must offer substantial improvement over previous technology.Unique circuit architecture need not be included, but some new approach orapplication must be involved in the product's design.

4. The prices of the products must be within reach of their intended users. Thrjudges seek products appropriate to a wide range of facl:,

5. The products must be available for purchase within calendar 1995. Equipmentmust be on display on the show floor and currertly (or imminently) in production. Judges take the exhibitor's word on availability dates. Products demonstrafed in private showings do not qualify.

9.5" x 2.5" x 1"

44444i

Control 10latching relays andcheck 10 logic -level inp.itsfrom any touch-tone phone. Userdetermined access code. Just S339.00

Remote ControlBy Telephone

CONE X SYSTEMS' 1 1400-645-1061P.O. Box 1342 Bellingham, WA 98227


line: RADIO, May/June 1995 . 39

Analysis:

By William Fawcett

{By now you'veprobably heard aboutthe new EmergencyAlert System and itsadvantages, but howmuch do you reallyknow about it? Whileits predecessor; EBS,can certainly stand theupdate, doseinspection shows thatEAS may also have itspn9blems. Amongthese are the cost ofnew equipment, theoptional nature ofseveral key featuresand the inclusion ofsome burdensomerequirements. Finally,will EAS actually helpthe public be betterinformed?)

Counterpointon EASWhat will the real cost of implementing EASbe, and who will pay it?

The new climate inWashington may becalling for reinvention

and downsizing of govern-ment, but in the opinion ofsome observers, the sweep-ing revision of the EBS sys-tem that is about to takeplace is anything but lessintrusive. Broadcastersshould take heart - it'sthe cable operators whoare in for a real shock. Anappended Further Noticeof Proposed Rulemaking(NPRM) may in some in-stances require cablecastersto provide bed -shakers forhandicapped customers.

On balance, the new sys-tem will probably providesome necessary improve-ments to the country's emer-gency alerting procedures.In certain situations, it alsomay enable true walk -awayoperation for stations. Butnothing comes without acost.

Compared to what?The commission calcu-

lates that the entire cost ofthe new EAS equipment tothe broadcast industry couldbe as low as $8.7 million.But this is based on esti-mated costs of hardware thatmay be lower than what theeventual products actuallycost.

The EAS Report & Order(R&O) also estimates thatthe new EAS could save 10%of weather -related deathsand injuries, and 1% ofweather -related propertyloss and damage. In 1992,this would have meant that31 lives could have been

saved, and 324 injuries and$384 million in propert\damage could have beenavoided.

Even if you accept thatestimate, this public serviceat the expense of broadcast-ers must be considered ei-ther an indirect tax or a man-dated contribution. But else-where in the R&O, the com-mission figures it will comeout in the wash: Onecommenter estimates thatthe new system would pro-vide a median annual oper-ating savings of $5,280 perstation. Thus, operating sav-ings alone may pay for all ormost of a broadcaster's costto install and operate thenew EAS.

This commenter is uni-dentified in the R&O, butfrom other sources, it hasbecome clear that the fig-ures are based on lost com-mercial airtime and thecost of record -keeping, stafftraining and maintenancerequired by EBS that willnot occur under EAS. Thismakes several assump-tions, including that thenewly available airtime un-der EAS will actually besold by stations and thatthe other costs will actu-ally be so significantly re-duced. In terms of actualcash outlay, no stationspends more than a fewhundred dollars a year onaverage for EBS operations,and ongoing EBS equip-ment costs are negligible,so many stations may behard pressed to balancetheir ledgers using thecommission's reasoning.

The costs ofcomplexity

To prevent bogus trans-missions (which are a fed-eral crime) the EAS's FSKkeying scheme uses non-standard keying and datarates. They are just compli-cated enough to prevent off -the -shelf modem softwareand hardware from beingused (although not present-ing much of a challenge to aham operator experiencedin packet communications).

The complexity of thesystem approaches that ofone of the integrated wireservice/computer services,or a satellite/computerweather service, where astation's hardware cost typi-cally runs around $3,500.Will the quantity of pro-duction really drop costsfar below this, as the com-mission expects? It couldalso be argued that the com-plexity of the system (andthe limited market size) willkeep some potential manu-facturers out of the market.Such a small number ofven-dors could keep the priceartificially high.

Because no product hasbeen type -approved by theFCC as of this writing, manu-facturers are not yet quot-ing firm prices. However,their estimates for completeencoder/decoder systems,which most stations will re-quire, run around $2,500.Your mileage may vary.Other hidden costs are alsoinvolved:

The commission requiresequipment manufacturers


REQUIREMENT 11/10/94 7/1/95 7/1/96 7/1/97

2 -toneencoder timing

20-25seconds

8-25seconds

8-25seconds

8-25seconds

2 -tonedecoder timing

begin changingtiming from

8-16 to 3-4 sec.

all decodersat 3-4 sec. 3-4 sec.

2 -tonedecoders nolonger used

EAS decoderand encoder

use isoptional

use isoptional

use isrequired

use isrequired

Table 1. The EAS conversion timetable for broadcast stations.

to include a videocassette trainingcourse with EAS hardware. Some ra-dio stations may have to purchase aIV and VCR to take advantage of thisfeature.

The new system requires at least twomonitoring assignments instead ofone. Low -end encoder/decoders willrequire additional receiver(s) and, inmany cases, additional yagi antennas.Stations operating distant repeater -type stations by remote control mayhave to locate this equipment at thetransmitter site. The tower rent forinstalling a yagi could easily be an-other $300 a month.

A UPS -type power supply is prob-for the EAS hardware,

along with a PC and modem (if one isnot already on hand) to access theEBS database for copies of statewideplans. (You could get these by mail,but the PC will likely be necessaryanyway because the NPRM on unat-tended operation proposes a com-puter bulletin board to keep yourcontact person registration current.)

The EAS also allows optional auto-mation, which can solve the commonEBS problem of operators not hear-ing alerts (or not knowing what to do).Unfortunately, the stations that canonly afford entry-level operators -which need this feature the most - arelikely to purchase the cheapest sys-tems with the fewest automatic fea-tures.

How to shorten EBS decoder tinning:

Gorman -Redlich:All models: Cha -)ge the summing point time -constant capacitor (470 tantalum) atthe junction of two diodes feeding IC8 pin 2 to a 100 tantalum. You may need tohand -select the exact value.

McMartin EBS-2Replace R37 (470kil) with a 500k11 pot (wiper and one and). Adjust to approxi-mately 255k12. Alternatively, parallel R37 with a 560kit resistor. Absolute value mayvary, because t ming is dependent on actual value of C24, which is a 2000capacitor.

Multitechnical Services:All units: Replaon microprocessor chip, available from factory for $125.00.

ITT 760 series:Replace C13 wth a 22p.f 5% 25V tantalum capacitor. Replace R26 with a 182ki1 1%

'/4W resistor. Contact TFT to request "A Primer: Guide to the new Emergency AlertSystem."

TFT 886/887 series:Locate SW10 on the main PCB. Turn all switches OFF, than turn SW10-2 ON. ContactTFT to request ".\ Primer: Guide to the new Emergency Alert System."

Table 2. Manufacturers' recommended modifications for EBS decoders, to conformto shortened 2 -tone alert signals. After July 1, 1995, all EBS decoders must be set torespond to these shorter tones.

You can obtair the FCC's EAS Report and Order electronically via World WideWeb, Gopher cr anonymous FTP:

http.//www.tcc gov Gopher fcc.gov FTP FCC.gov<select>Check out our files! Daily_Business login: anonymous<select>Reportt December 8, 1994 password: <your E-mal address><select>rpts4001.txt FCC94289NPRM cd pub

cd Reportsget rpts4004.txt

Impact on AM daytimersThe EAS dispiopurtionally burdens

daytimers. The new system scheduleshalf the monthly state system testswhen many AM stations are off the air:"Tests in even -numbered monthsshould occur at times other than be-tween 8:30 a.m. and local sunset."

How will AM stations know whenthey have to keep someone on late justto run a test? How will listeners reactto (or benefit from) stations coming onin the middle of the night, running atest and signing off? What will theadditional expense to AM stations be?

How fast a track?The FCC is on a fast track toward

EAS, as Table 1 indicates. Will thedate(s) be delayed like the STL band-width restrictions? Possibly. The NABhas already asked the commission todo so. Astute managers will wait untilearly next year to order equipment,just to give the market time to react.But massive back orders could occurduring those last six months beforethe July 1, 1996 deadline if it holds.Given the complexity of the system, itcould take a year beyond that until thesystem's bugs are worked out.

Will the EAS accomplish what it setsout to do? Will consumers, as the FCCenvisions, buy hardware that will wakethem up in the middle of the nightwhen an EAS alert is received? Con-sumers can presently purchase NOAAweather receivers and tabletop radioswith dual -tone decoders, but they havenot been big sellers. Unless mandated,demand for such items will probablynot increase. If a radio station tones -out in the middle of the night andnobody hears it, will "$384 million inproperty damage" be avoided?

Typically, after such sweeping regu-lation as this, the FCC later clarifies itsintent by memorandum. (NRSC is arecent example.) This will likely be thecase again with EAS. But just as withNRSC, PCBs, STLs and so on, theexpense of this experiment will sitsquarely on the shoulders of the broad-casters.

William Fawcett is president of MountainValley Broadcast Service, a contract en-gineering firm, and director of engineer-ing fo- the Center for Public Broadcast-ing at James Madison University both inHarrisonburg, VA

Contrasting views? Respond via the BERadic FAXback line at 913-967-1905 orvia E-mail to beradio4intertec.corn.

For more information onEAS equipment, circle (65)

on Reply Card.


News:

Survey shows how broadcasterslose their audience duringEBS alert

According to a survey conducted forTFT, approximately 44% of all radiolisteners turn off or change radio sta-tions when the weekly Emergency Broad-cast System (EBS) test comes on.

Four hundred car radio listeners,both men and women, ages 25-54,showed that listeners are well aware ofthe EBS announcements and the 22 -second tones that follow it. About 97%recalled hearing the announcementwhile listening to their car radios, while98% say they remember the tones fol-lowing EBS announcements.

When the listeners were asked if theychange stations or turn the radio offupon hearing the test, 23% respondedthat they "always" do, while another21% said they "sometimes" do. The44% tune -out factor is large enough tobe of serious concern to broadcasters.Radio stations may avoid that 44%tune -out when they switch to the newEAS system authorized this year by theFCC. The new EAS system does awaywith the tones in the once -a -week on -air test and tests can be aired any timeof the day.

Broadcasters can avoid the tune -outfactor sooner by switching emergencyequipment over to new EAS equipmentas quickly as possible and by gettingother broadcasters in their area to dothe same.

RE America jumps on RBDScampaign bandwagon

The EIA/CEG has kicked off its up to$3.5 million campaign in Philadelphiato make radio broadcast data systems(RBDS) accessible to the listening pub-lic.Through a $500,000 matching grantcampaign, EIA plans to provide 500radio data system (RDS) encoders and500 RDS radios to 500 FM broadcast-ers. EIA/CEG has selected RE Americato supply its RE533 encoders for thefirst year of the campaign. Plans call forreaching the top 25 markets within thenext 12 months.

To support the transition to RBDS,RE America will provide technicaltraining to radio station staff memberson the use of RBDS equipment. EIAwill work with each station's sales staffon RBDS' promotional opportunities.The encoders and radio are given toeach station in exchange for $5,000in advertising credit to promote the

benefits of RBDS.The RE533 encoder allows for flex-

ible installation at either the studio ortransmitter sites and operates as a stand-alone unit without a PC. The radio textfeature allows 64 -character messagesto be transmitted. The RE533 takes uponly one rack space. Vital informationis displayed on LED indicators on theunit's front panel.

RBDS was developed for the UnitedStates and Canada by the NationalRadio Systems Committee (NRSC),an inter -industry panel including rep-resentatives of EIA and the NationalAssociation of Broadcasters (NAB).The NRSC is charged with developingstandards for technologies affectingboth transmitting stations and radioreceivers.

The RBDS technology was standard-ized by the NRSC in January of 1993.It allows broadcasters to transmit radiotext and commands as digital data onan inaudible subcarrier. The data areorganized into groups that make up thevalue-added feature set. Broadcasterscan add new services and programsthat will increase listening enjoymentand station profits, such as displayingstation call letters, song titles, artistnames, paging messages, sports scores,stock quotes, advertisers' phone num-bers and other information, interrupt-ing in -car CD and cassette players fortraffic or emergency alerts and syn-chronizing clocks.

In December 1994, the FCC an-nounced its support for using RBDStechnology to transmit Emergency AlertSystem (FAS) alerts.

Survey reveals that nationalawareness of RBDS is increasing

Public awareness of the Radio Broad-cast Data Systems (RBDS) has grownfrom 10% of adult consumers to 16% inthe last 12 months, according to a sur-vey commissioned by the ElectronicIndustries Association's Consumer Elec-tronics Group (EIA/CEG). Twenty per-cent of the survey respondents said theywere interested in owning RBDS audioequipment compared with 18% in 1994.Of those expressing interest in owningRBDS, 22% said they would like topurchase it as an option on a new car,20% would like to own it as part of theirhome systems.

Overall consumer interest in specificRBDS features also rose from a previ-ous survey in that the RBDS featuresrespondents want most are station callletters, station format and advertisingto be displayed on their equipment.Some RBDS features saw large increasesin interest including station call letterand format display as well as built-inmessaging and paging.

Arbitron joins CouponRadio test

David Alwadish, founder ofCouponRadio, has found a new sup-porter in his quest to get CouponRadiooff the ground. Arbitron joins Interepand seven Miami stations in supportingthe 6 -month test of CouponRadio inMiami. Arbitron will provide researchand statistical services for CouponRadio,a technology that uses a station's RBDSsignal to transmit paperless couponsdirect to smart cards inserted in spe-cially -equipped car radios. Originallyscheduled for the last quarter of thisyear, the test has been pushed back tothe first quarter of 1996.

WWU campus radio stationis on-line

Western Washington University's cam-pus/community radio station, KUGS,89.3 FM, opened a window to the world at<http://pacificrim.net/kugs>. KUGSstarted broadcasting live on the Internet inJanuary.

Computer users with a direct connec-tion to the Internet can listen to modemrock music while peering into the KUGSFishtank, which is a live picture of theofficial KUGS aquarium

To reach KUGS on the intemet, usersneed to run a World Wide Web client (likeNCSA's Mosaic or Mosaic Communica-tion Corporation's NetScape. Interestedparties can send KUGS E-mail atkugs@pacificrimmet.

KUGS is one of a growing number ofradio stations that have put their air signalon-line.

ABC and NPR programsavailable in real time via PC

Computer users with a modem andaccess to the Internet will soon havethe ability to listen to programs fromthe ABC Radio Networks and NationalPublic Radio. Progressive Networkshas developed a software programcalled RealAudio that will allow PCusers to listen to programs in realtime. This will eliminate the need todownload the audio to a PC that mustthen decode the file before playback.Also, the PC user will have the abilityto rewind or fast -forward throughoutthe Internet -fed programs.

ABC plans to provide hourly newscasts,PeterJenningsJoumal commentaries andother selected 1 -minute newscasts. NPRwill provide its MI Things Considered andMorning Edition programs.

Although the programs will be avail-able on a delayed basis initially, Pro-gressive Networks plans to offer livenetwork feeds in the future.


BUSINESS

VirteX and Infinity Broadcasting haveformed a digital delivery joint venture fora digital programming delivery systemcalled MUSICAM Express. The systemwill deliver CD -quality audio to all Infin-ity -owned and Westwood -affiliated sta-tions using high-speed digital phone cir-cuits, digital satellite delivery and com-puter file servers.

AddieTech, LaGrange Park, IL, isoffering low-cost EBS equipment modi-fications to all broadcast stations. TheFCC has mandated that all currentEBS tone decoders be modified foroperation with the new 8 -second tonebyJuly 1, 1995. The AddieTech "Short -Tone" package includes decoder andgenerator modifications for proper 8 -second operatioi, and a generatortone -duration switch so stations mayoperate with the current long tone untilJuly 1, then swit_th to the short tone,reserving the long tone for actual emer-gency attention signaling. The packagealso includes a power supply check,unit performance check, documenta-tion and a 90 -day guarantee.

Jampro RF Systems, Sacramento, CA,has been awanled a contract by Sentech fora 7 -station FM combiner system. Sentechis the signal distribution company for theSouth African Broadcasting Company.

Sypha. London, has published thefourth edition of The Tapeless AudioDirectory." The $25 directory providesinformation on target markets, hardwareand software specifications, operationalfeatures, network ng and file translationcapabilities. Other topics covered in-clude archiving and backup facilities,future development plans, training andcustomer support, typical configurations,costs and suppliers details for the UnitedStates, Europe, and the Far East. ContactSypha, 216A Gipsy Road, London SE279RB, UK; phone +44 181 761 1042;fax +44 181 244 8758.

DCI has relocated to 10121 MillerAve., Suite 201, Cupertino, CA 95014;phone 408-446-8350 or 800-446-0015; fax 408-446-8383.

RE America, Westlake, OH, has beenselected by SW Networks to supply au-dio coders for itt, satellite and terrestriallinks.

Telex Communications, Minneapo-lis, MN, has appointed SoutheasternCommunications System, Inc., d/b/aSecom, as a manufacturer's representa-tive for the southeastern United States.The territory includes South Carolina,Georgia, Alabama and Tennessee.

Harris Allied has been selected tointegrate and install a turnkey radio stu-dio for ICERA-FM's new production andbroadcast facility in Dallas.

International Datacasting has plansto prmide the Chinese Ministry of Ra-dio, Film, and Television (MRFT),Beijing, with a FlexRoute satellite digitalaudio system.

ComStream, San Diego, CA, is install-ing satellite audio broadcast products forVietnam's first digital network at Voice ofVietnam (VOV).

Orban, San Leandro, CA, has reportedsales of the OPTIMOD-FM 8200 digitalaudio processor to RAI Radio-televisione Italiana, Canal Sur de Tele-vision - RNA, the Government ofThailand's Public Relations Depart-ment and Swedish Radio. Also, Orbanhas sold the DSE digital audio worksta-tion to American Radio Systems andRadio Hamburg.

International Tapetronics Corpora-tion (ITC), Bloomington, II, is estab-lishing additional distribution channelsfor its audio management products. DanViles' Northeast Broadcast Consult-ants firm, Red Hook, NY, has beenappointed as representative for ITC cus-tomers in the Atlantic Northeast. Vilescan be reached by phone at 914-758-2623. Other developments include thecommissioning of Technical ServicesGroup (TSG), Baton Rouge, LA, as aValue Adding Resaler for ITC'sDigiCenter digital audio managementsystem. TSG will configure, assemble,test and install DigiCenter systems inaddition to providing customer support.The phone number for TSG is 504-751-9800.

360 Systems, Westlake Village, CA, hasexpanded and moved to larger quarters.The address is 5321 Sterling Center Dr.,Westlake Village, CA 91361; phone 818-991-0360; fax 818-991-1360.

PEOPLE

Edward J. Parker has been appointedas chief financial officer at ASC AudioVideo Corporation, Burbank, CA.

Shannon T. Celia has been appointedpublic relations manager at JBL Profes-sional, Northbridge, CA. Celia can bereached by phone at 818-895-3426.

Robert A. Orban, founder and chiefengineer of Orban, was presented withthe 1995 Radio Engineering Achieve-ment Award. Winners of the EngineeringAchievement Awards are selected by theNAB Executive Committee.

Business/People:

Chris Holt has been appointed prod-uct engineering specialist at Orban, SanLeandro, CA.

Gary Crowder has been appointedbroadcast sales manager at GentnerCommunications, Salt Lake City.

John E. Leonard Jr. has been ap-pointed business development managerfor Gentner Communications Site Con-trol product group.

Steve Goldoni has joined 360 Sys-tems, Tarzana, CA, as a sales engineer.

Bob Groome has assumed the po-sition of senior technical sales forWorldwide Sales of Nrrakis Systems,Fort Collins, CO.

COMING IN THENEXT ISSUE...

Cover Story:Radio Automation

Computer -based automation andaudio management is today's

hottest technology at stations, butmoving to this new paradigm

leaves many radio managers andengineers with a lot of questions.Find the answers in this compre-

hensive and up-to-the-minutesurvey of the radio automation

marketplace.

DAB UpdateSlowly but surely, DAB continues

i's arduous path toward reality.Learn where things stand on boththe terrestrial and satellite fronts in

this fact -filled feature.

Managing Technology:Owner Maintenance

What can a radio station staff do tomaintain high technical perfor-mance between visits of thestation's contract engineer?

Contract Engineering:Insurance &

IndemnificationContractors need some measure

of protection in today's highlylitigious environment.

RF Engineering:Folded Unipoles

An old idea has new merit intoday's AM transmission systems.


New Products

FM digital processorCircuit Research Labs

DP -100: an all -digital FM audio proces-sor based on a 32 -bit floating point DSP

processor arranged in a multidimensionalparallel architecture, a wide dynamic range,5th order 18 -bit A/D converter and AESdigital inputs and outputs; processor includesa digital stereo multiplex generator, AGC, 5 -band compressor and 3 -band limiter; pro-cessor features touchscreen graphical userinterface operation, CRL's exclusive stereosound enhancement and improved digitalversion of CRL's patented dynafex noise re-duction system.


Digital reporter terminalAudio Processing Technology

DRT128: a compact portable unit de-signed to deliver high -quality audio commen-tary in outside broadcast and limited band-width applications; a 2 -channel ISDN termi-nal adapter is incorporated with internal IMUX;unit employs the apt X-100 digital audiocoding algorithm.

C1rclo (151) on Reply Card

Wireless bridgeCylink00 AirLink Bridge: a remoteEthernet wireless bridgebased on spread spectrumradio technology; the bridgeis designed specifically foroutdoor, interbuilding con-nectivity and provides simul-taneous bidirectional trans-mission of Ethernet packetsover a robust link that main-tains full throughput at maxi-mum range; the range is over15 miles at 1,872 64 -byte packets per second wireless link capacityand can reach up to 20 miles at other capacities; all Cylink bridgessupport all networking operating systems and protocols includingNovell (IPX), TCP/IP. DECnet, XNS, SNA, IBM LAN Server, MicrosoftLAN Manager, Banyan VI \ and 3Com 3+ Open.


Digital actuality recorderHenry Engineering)0. TeleStor: a specialized digi-tal audio recorder for auto-matically recording broadcaststation "audio actualities;"TeleStor records the feed froma regular dial -up telephoneline, storing it in digitalmemory for instant on -the -airplayback; the system operatesunattended and stores up to 51/2 minutes of audio; the actu-ality is played on the air likeany other audio source; aDTMF password prevents unatith( tized reconling into the TeleStor.


TELESTOR'

Modules for SeeportSeem Audio)0. Studio modules for Seeport portable mixer: modules featurethe same form factor as the standard modules and arc designed forsmall on -air studios or film and video editing suites; input modulesare mono mic/line and stereo line.


Digital audio recording systemDigidesign

1/0 Pro Tools III: a digitalaudio workstation that pro-vides up to 48 tracks ofrecord/play, up to 64 ana-log or digital channels ofI/O and the DigidesignTDM virtual digital mixingand Plug -In environment;also includes DAE, theDigidesign audio operatingsystem, and a new versionof the Pro Tools applica-tion software.


AmplifiersElectro-Voice10. Precision series: line of dynamicpower amplifiers including modelsP3000, P2000, P 1250 and P1200; allmodels offer state-of-the-art audio per-formance and bulletproof design; thefrequency response of 10-30,000Hz/-1dB incorporates a mirror front-endbridge circuitry that limits thermal har-monic distortion to less than 0.05%;signal-to-noise ratio is less than 105dBand the dynamic distortion, measuredwith DIM 100 tests, is less than 0.01%;output devices are mounted directly toa large extruded -aluminum heat sinkdesigned to minimize thermal gradi-ents and allow the amplifiers to operatesafely into low -impedance loads; built-in limiters guard against the negativeimpact of amplifier clippiti).!.


44 lil: RADIO. May/June 1995

ADAT cassettes3M

ASD audio S -VHS masteringcassette: developed for use onall ADAT recorders and espe-cially designed Cu digital audiomultitrack applications; tape pro-vides up to 42 minutes of recordtime at the 48kHz sampling rate;an exclusive bine er system and astabilized polyester backing en-sure fewer data errors and in-creased durabili v in the editingprocess.


Macintosh utilityThe SynclauierCompany)0. S/LINK 2.0: abatch audio file trans-fer and conversionutility for theMacintosh; allowsusers to share andtranslate incompat-ible digital audio for-mats between a widevariety of productionsystems and fluid -media authorirg stations; users can batch transfer sounds directlyfrom CD-ROM or CD -Audio sound libraries; during a transfer, on -the -fly sample rate conversion is also available allowing users to mix andmatch materials originally recorded at different sampling frequenciesup to 100kHz the S/LINK 2.0 can be used with any off -the-shelfMacintosh con-puter with a 68020 processor or higher.


Portable MiniDisc recorderDenon

DN8OR: a portable MiniDisc recorder built for the rigors oflocation recording; features a RAM buffer with capacity for 40seconds of stereo audio; the optical pickup incorporates a proprietaryvibration -absorbing suspension; features include balanced mic in-puts with limiting, AES digital output, headphone output, and cuespeaker; the mono recording capability allows 148 minutes ofuninterrupted recording when stereo is not required.


Receiver modulesLightwaue Syvems

FBDO-M master 2 -channel Fibmc a master receiver unit thataccepts the fiber-optic signal from a Fibox transmitter, demultiplexesthe digital input signal, and provides two channels of 20 -bit AES/EBU digital output on both XLR and BNC connectors; a front panelrotary switch selects sampling rates of 32, 44.056, 44.1 or 48kHz,or sync to external reference; the master unit also receives andmultiplexes signals for up to five additional Fibox slave output unitsallowing up to 12 channels of full -bandwidth digital audio transmis-sion on a single fiber-optic cable.

FBDO-SL AES/EBU slave unit also features 20 -bit AES/EBUdigital output capability; unit must be used in conjunction with themaster unit because it does not contain the fiber-optic receiver anddemultiplexer circuits; connects to the master unit with availablelinking cables and up to three master or slave units may be mountedin a single rack space using the optional rack -mount kit; a complete12 -channel system fits in three rack spaces.


DAT recorderSony Electronics310. PCM-2600: a digital audiotape recorderoffering a 4 -motor tape -drive transport;recorder features high -resolution digitalconversion, switchable super bit mappingprocessing, balanced (+4dBm, XLR) ana-log and AES/EBU digital inputs and out-puts.


Digital audio workstationSpectral

Prisma Music: a new application -specificuser interface that runs on Spectral's globalhardware platform; the hardware plugs intoa standard personal computer and employsfull -screen control panels that can be in-standy switched; the edit panel displaysfrom two to 16 tracks, each four layers deep;features include *smart functions" such asaudio zoom, EQ and spot-on metering, ob-ject -oriented editing, free form editing andspline -fit algorithms.


AES/EBU digital metering moduleWohler Technologies

LVDIG-1: a metering module that providesaccurate level indication of AFS/EBU digitalaudio signals; designed for mounting inWohler's MSM-1 single rack space multiplesource metering unit; each module includes apair of 10 -segment LED level indicators anduser -accessible DIP switches for selecting in-dication modes; up to 10 modules can beplaced in one MSM-1 unit and both analogand digital modules can be mixed and matchedin the same MSM-1 housing.


Studioframe upgradeTimeLine

24 -track upgrade for the Studioframeworkstation: upgrade that extends theStudioframe's recording configuration ca-pability to include 8 -tracks, 16 -tracks or24 -tracks; the upgrade integrates with theentire Studioframe system, including theon -board mixer.


lilt RADIO, May/June 1995 45

SERVICES

JOHN H. BATTISON P.E.CONSULTING BROADCAST ENGINEER,FCC APPLICATIONS AM, FM, TV, LPTVAntenna Design, Proofs, Fieldwork

2684 State Route 60 RD '1Londonville, OH 44842

419-994-3849

CHAN & ASSOCIATESBk 4N ss DI SI I I WNI st S IY AB IA MARK, 1151; P, RIY RELAHONS

2212 HERITAGE WAYFULLERTON, CA 92633PHONE: (714) 447-4993FAX: (714) 578-0284PAGIA: (714) 506-1357

CURTIS J. CHANPIOSIIH-NT

kLF,IZT! ALERT! ,k1,1':RT!From EBS 20 to EAS 8 in $94.00 flat...

Comply and avoid tune -out!Send us you working EBS equipment and we'll recalibrate it to new 8second EAS Standard for ($94.00 including return shipping via surface.)Expedited shipping requires an upcharge. Call for a Repair Authorizationnumber and further info...

From the service Pro's at Harris AlliedPHONE 317/962-8596 extension 234

AntennasTransmission LineFilters

DIELECTRICGS

P.O. Box 949Tower Hill RoodRaymond, Moine 04071207-655-4555800-341-9678FAX 207-655-7120

Matthew J. LelandManager, FM Systems

RADIO AMERICABulletin Board Service

Buy & Sell RadiosAll brands - New & Used

Hundreds of listings for Ham,Two-way and Broadcast users.Sign on now with your modem

1-520-526-4000No charge to callers

P.O. Box 30007, Flagstaff. AZ 86003-(XX)7Main Offices (520) 526-6((X)

rYour ad here.

Promote your services and increasebusiness for as low as 845 per inch.

Advertise in BE Radio Classifieds!

D.L. MARKLEY& Associates, Inc.

CONSULTING ENGINEERS2104 West Moss Ave.Peoria, Illinois 61604

(309) 673-7511FAX (309) 673-8128

Member AFCCE

HEAD RELAPPING/REPLACEMENT

All tape and film formatsMotor Rebuilding

35 years experience

1350 N. Eric Drive

Palatine, IL 60067708-358-4622

FINANCIAL SERVICES

EQUIPMENTFINANCING

ON ALLRADIO EQUIPMENT Lase to quality Fixed-rate, long-term

leases Any new or used

equipment 100% financing, no down

paymentIN No financials required

under 550.000 Refinancing existing

equipment

EXCHANGE~II - NATIONALFUNDING

Call Mark Wilson(800) 275-0185

CLASSIFIEDADVERTISINGRATES

Advertising rates in BE RadioClassified Section are $45 percolumn inch, per insertion.There is a one inch minimum.

Ads may also be purchasedBy -The -Word for $1.75 per word,per insertion. Initials andabbreviations count as fullwords. Minimum charge is $30per insertion.

ContactBE Radio Classified

Sales Manager(913) 341-1300

or fax (913) 967-1735to advertise in

BE Radio Classifieds.

"Great article!Can we get copiesfor our clientsand sales force?"

Whether it's an article, ad.or an interesting column,take advantage of thisunique opportunity topromote your business andproductsthroughreprints-available fromthis magazine.Reprints aregreat promo-tional piecesand makeexcellentmarketingtools ...all at a minimal cost.

Available in full -color orblack & white, reprints canbe obtained from any issue.

For a free price quote,contact Chris Lotesto,

toll -free at 800-458-0479or 312-435-2357.


GE SUPER RADIO WITH IMPROVED AM ANDSCA - $95. SCS RT I SCA Card - $20. JohnsonSCA 880A SCA Card - $45. Pocket SCA Receiver -$40. Call SCS Radio Technology, 800-944-0630 or117-881-8401.

NEUTRIK CONNECTORS AND PATCH CABLESDiscount pricing, for info call or fax: Green DotAudio, Nashville 615-367-9242.

Be Courteous.Tell the advertisers in BE Radio

where you saw their ads.

Help businesses makesmart decisions!

CLASSIFIED AD ORDER FORMSell your product, offer your services or

fill your recruitment needs!Only $1.75/word or $45/column inch,

Ad closing date forJuly is June 12th!!!

NameCompany (it applicable)AddressCity

AD COPY Headline: (i.e

Ad Copy

SAVE LIME DESIGNING, OPTIMIZINGAND MANAGING WIRELESS RFCOMMJNICATION SITES!

- Intermodulation Interference Analysis- Transmitter Noise/Receiver Desense Analysis- Radiation Hazard Analysis- Site Facilities Design- Site Management Database

COMSITEBY DOUGLAS INTEGRATED SOFTWARE

CALL 800-845-0408 or 904-656-8673

EQUIPMENT WANTED

MERCENARYAUDIO

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UNIVERSAL AUDIO-NEUMANNAKG-TELEFUNKEN-AMSANYTHING THAT ISOF EXCEPTIONALAUDIO QUALITY!

'1011 901,1,MIPAID

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DatePhone

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For Sale, Misc., Help Wanted, Service)

Zip

0 Please run my ad in (designate month or months preferred)

ClICall me about questions regarding my ad.

FOR SALE

6 EW LIGHTS by Ac -ceteraLUMIN-EZE:

Standard Deluxe Halogen Pro Eattery 1 Dual Deluxe Dual Battery

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For moreinformation call

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JustThink...if this hac been your ad,

you'd have a prospectright now!

Call the Classified SalesManager to place your ad in the

next issue of BE Radio!

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SignatureL


AD INDEX SALES OFFICES

Reader AdvertiserPage Number

Audio Precision 5

Belar Electronics Laboratory 16

Belden Wire & Cable 29Benchmark Media Systems 35

Burk Technology 8

Computer Concepts Corp. 21

Conex Electro Systems 39

Continental Electronics IBC

Eventide, Inc. 9Fostex Corp. of America 24-25Gepco 8Harris Allied 1,15

Henry Engineering 16

Larcan - TTC 12

Ughtwave Systems Inc. 19

Mackie Designs Inc. IFC

MPR Teltech Ltd. 27

Orban, Div. of AKG Acoustics 3

Sennheiser Electronics Corp. 30Telos Systems 13

Thomcast 11

Varian Associates Inc. 7

Wheatstone Corporation BC

Service Number Hotline10 800-231-735015 610-687-555020 800-235-336417 800-262-467519 800-255-80906 913-541-09009 206-734-43232 214-381-716122 201-641-120023 800-7-FOSTEX

18 312-733-95554,14 217-222-82(X)

16 818-355-36568 303-665-800013 214-741-51421 800-258-688324 800-488-20215 510-351-350021 203-434-919012 216-241-72257 349-031-0011 800-414-8823

3 315-452-5003

EDITORIAL

Skip Fizz, Radio MiterDawn I lightower, Senior Associate EditorDeanna Rood, Associate EditorCarrie Poland. Editorial AssistantTom Cook. Senior Managing Editor('ad BenG. Directory Editor

ARTStephanie L Masterson, Associate An Director

BUSINESSRaymond E. Maloney, PresidentCameron Bishop, Group Vine PresidentDennis Triola, PublisherTom Brick Marketing DirectorStephanie I lanaway.GroupDirector.SixrialPrrljectsKathryn Buckley, Promotions ManagerSandra Tomczak. Promotions CoordinatorDee Unger, Director Adwrtising SersicesNancy Hupp, Athertising Production ManagerAnnette I lulsey, Classified Athertising CoordinatorPat Eisenman. Production SupersisorSusan Jones, Athertising CoordinatorDoug Cocumxl, Corporate An DirectorBarbara Kummer, Circulation DirectorEunice Longanecker, Circulation Manager('ustomerSersice: 913-967-1711 or 800-4414)294

TECHNICAL CONSULTANTSJerry Whitaker, Contributing EditorRichard Dean. European CorrespondentEric Neil Angevine, BroadcastJohn II. Battisort antennas/RadiationDennis ('iapura, Radio TechnologvDane E. Ericksen, RE. Systems DesignJohn Kean, Subcarrier TechnologvDonald L Marldey, Transmission FacilitiesHarry C. Martin. LegalCurtis Chan, irk,7i -h,,h,t,"

B 4

MEMBER ORGANIZATIONSSustaining

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Member, American Business Press ABPBE RADIO (ISSN 1081-33571is edited for corpo-rate managementtechnical management/engineer-ing and operations and station management at radiostations and recording studios. Qualified personsalso include consultants, contract engineers anddealer/distributors of radio broadcast equipment.

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Authorization to photocopy items for internal orpersonal use, or the internal or personal use ofspecific clients, is granted by Intertec Publishing,provided that the base fee of U.S. $2.00 per copy,plus U.S. $(X).(X) per page is paid directly to Copy-right Clearance Center, 222 Rosewood Drive, Dan-vers, MA 01923. The fee code for users of theTransactional Reporting Service is ISSN 1081-3357/1994 $2.00+00.00. For those organiza-tions that have been granted a photocopy license byCCC, a separate system of payment has been ar-ranged. Prior to photocopying items for educationalclassroom use, please contact ('('(' at 508-750-84(X). Organizations or individuals with large quan-tity photocopy or reprint requirements should con-tact Chris lotesto 312-435-2359. Microfilm cop-ies of BE Radio are available by calling/writingUMI, 3(X) North 'Lech Rd. P.O. Box 1346, AnnArbor, MI 48106-1346.Telephone 313-761-4700or 8(10-521-o600.

CORRESPONDENCEEditorial and Advertising; 98(X) Metcalf, OverlandPark. KS 66212-2215. Telephone:913-341-1300;F.ditorialEvx:913-967-1905. AthtFvx: 913-967-1904.0 1995 by Imenec PublishingAll rights reserved.

NEW YORK, NEW YORKGordon & AssociatesJosh Gordon210 President StreetBrooklyn, NY 11231Telephone: (718) 802-0488FAX (718) 522-4751Joanne Melton888 7th Avenue, 38th FloorNew York, NY 10106Telephone: (212) 332-0628FAX (212) 332-0663

CHICAGO, ILLINOISVitas Urbonas55 East Jackson, Suite 1100Chicago, IL 60604Telephone.: (312) 435-2361FAX (312) 922-1408

AGOURA HILLS, CALIFORNIADuane Hefner5236 Colodny Ave., Suite 108Agoura Hills, CA 91301"Telephone: (818) 707-6476FAX: (818) 707-2313

SANTA MONICA, CALIFORNIAMCI Magazine CommunicationsMarketing CorporationJason PerlmanTelephone: (310) 458-9987FAX (310) 393-2381OXFORD, ENGLANDRichard WoolleyIntertec Publishing CorporationUnit 3, Farm Business CentreClifton Road, Deddington,Oxford OX15 4TP EnglandTelephone: +44 (0) 1869 338794FAX: +44 (0) 1869 338040Telex : 837469 BES G

TOKYO, JAPANMashy YoshikawaOrient Echo, Inc.1101 Grand MaisonSh i mom iyabi-Cho 2-18Shinjuku-ku, Tokyo 162, JapanTelephone: (3) 3235-5961E (3) 3235-5852Tel= J-33376 MYORIENT

CLASSIFIED ADVERTISINGOVERLAND PARK KANSASClassified Ad ManagerP.O. Box 12901Overland Park, KS 66282Telephone: (913) 967-1732FAY: (913) 967-1735

LIST RENTAL SERVICESREPRESENTATIVEChris Coughlin9800 MetcalfOverland Park, KS 66212-22 15Telephone (913) 967-1928FAX (913) 967-1872

PUBLISHING


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Documents

41,10.6 NMI - americanradiohistory.com · 2019-07-17 · expects to market as an AM/FM IBOC DAB add-on to standard AM/FM radios. The company also claims the chip should add no more