SHURE MoaaEcOIIIHUCAnoNSPRODUCU

When you specify Shure microphones, you can depend on their ruggedness, reliability and outstanding sound performance. Shure microphones have withstood wars, earthquakes, floods, fires, avalanches, sandstorms. Even though people in more than 150 countries around the world put our micro­phones to hard use every day - they leave them to bake in the hot sun, they drop them, step on them, yank the cable - Shure microphones are manufac­tured to such uncompromising standards that they perform optimally.

Every microphone Shure designs and builds is put through a rigorous battery of environmental and performance tests to ensure that it will function under the most extreme operating conditions. There are 37 demanding tests every design must pass before being put into production. Microphones are heated to 185°F, frozen down to -50°F, subjected to alternating extremes of heat and COld, exposed to steamy humidity, ultraviolet rays, salt spray, alcohol, sand and water, dropped repeatedly, shaken violently, and much more. And once a Shure microphone goes into production, units are continually chosen at random and put through the same tests to insure that Shure's legendary standards are maintained. If any microphone fails a critical test, production is halted until the problem is resolved and our quality control standards are again fully met.

@1987.ShureBlOlllerslnc.

2

Shure was the first microphone manufacturer to make full disclosure of each and every microphone's specifications. All Shure microphones are designed to meet tough military standards for physical and electrical characteristics as well as environmental operating conditions. At Shure, our commitment is to quality. That's why we are constantly improving our products. When you buy a handheld microphone with a Million-Cycle Plus 1M leaf switch, you're getting extras you can't see, but which greatly improve durability and performance. For example, all switch contacts are "alloyed" with expensive palladium, not just silver, to prevent tarnishing and rusting. Such attention to detail, today, is rare because it is costly. Yet, it is the only way to assure the quality of a finished product that is designed to perform optimally for many years to come, no matter how extreme the operating conditions.

Studio photography simulates four of 37 actual tests all Shure micro­phones are put through. Clockwise from top left. freezing down to - 50°F, moisture resistance test. exposure to fine blowing sand. and vibration test.

MOilLE COMIIUNIClTlOllS/HIIIDHB.D MICROPHONES

Just 30 seconds. That's all it takes to replace the ModuLink cordset. The modular plug snaps Quickly into the base of the ModuLink microphone (shown here), and the radio end of the cordset is pre-wired for fast connection to the radio.

ModuLink reduces inventory requirements. The two ModuLink microphones operate with almost any radio transceiver. And just a few different cordsets (see page 6) support over 40 different radio transceiver models.

t t I I + +

+ +

3

MOBILE COMMUNICADONS/HANDHELD MICROPHONES

r r r r I T T T T T r Tailored response provides maxI­mum voice clarity and intelligibility.

Comfortable ergonomic design with virtually indestructible Armo-Du(' case coordinates with latest model radios and new vehicle interiors.

t

j j j 1 1 j

Million-Cycle PlusT• leaf switch

contacts are alloyed with palla­dium. Nickel-silver spring tempered

_ bl.ades bendJJut never break.

I I I I TM

All the convenience of the most advanced DTMF microphone at a reasonable price for telephone interconnect installations. Multi-function packed for ease of use, durability and clarity, the 890n also features: D Ten memory locations store up to 16 digits each. D Dialed number can be easily stored in any memory location when

making a call. D Memory switch allows programming without transmitting. D Lithium battery holds program in memory for years. D Automatic storage of last number for redial. D Automatic "pause/drop" function inserts pause to allow access

code and phone number to be stored in a single memory location. D Dialing circuit keys transmitter without using push-to-talk switch. D Illuminated keypad for night viewing with positive tactile-feel keys. D Audible tone confirmation when number is entered. D No need for separate 12-volt power source-all functions

powered from mic line. D Internally selectable dialing speed.

Data sheet for Model 890n with complete specifications available upon request.

4

I t

A. Memory programming port allows programming without transmitting (890n DTMF only).

B. Set DTMF output level easily through access port (890n DTMF only).

C. Hang-up button connection for hang-up sensing transceivers.

D. Output level can be set to adjust audio for optimum deviation with­out opening the mic or the radio.

E. Locking-action tab prevents inadvertent release of modular connector. Yet, cord can be quickly released when desired by inserting a miniature screw­driver into port.

Modular connector snaps and locks into microphone (patent pending), solving cord failure problems in less than 30 seconds.

A B

c

====:f--D

.-:;.:=----- E

MOBILE COMMUNICIDONS/HINDHELD MICROPHONES

t t j t Modullnk microphones are ergonomi­

designed for maximum comfort. a textured surface and slim

deSign, these microphones are easy to grip and comfortable to hold, aven in sticky, humid weather. And both microphones feature Top-Talk Sound Channels'" so you can hold the

l~nlicf{lDhoRfl naturally, and talk into the top-ending muffled voice inpul.

1 L L 1 1

This rugged handheld microphone features a Shure dynamic cartridge. Tailored frequency response provides optimum voice articulation while it discriminates against other sounds. The 590T is ideally suited to a wide range of mobile installations. The unique replaceable ModuLink cordset system makes the 590T a workhorse that is easy to service. The microphone itself is designed to provide trouble-free service even under the harshest conditions. Frequency Response: .. 200 to 4,000 Hz Impedance (@ 1 kHz): .200 ohms (non-amplified mode) Recommended Load: ... Greater than 500 ohms Non-Amplified Output Level (@ 1 kHz): ..... 15.8 mV (-36.0 dB. 0 dB=lV/l00 microbars) Amplified Output Level (@ 1kHz): ..... 0.32V (-10 dB, 0 dB=1V /100 microbars) for a DC Supply Current of

2.5± 0.25mA PH'Swltch: ....... Million-Cycle Plus'" leaf-type Cable Type: ......... Detachable 5-conductor, l-shielded, coiled, with 8-conductor (6 used)

modular telephone type connector Cable Length: ....... 1.2m (4 It) Replacement Parts: ... 90A4056 Cartridge, 90A4040 Printed Circuit Board Assembly

90A3543 SWitch Assembly, See chart on page 6 for available cordsets Optional Accessories: .. RK6MB Mounting Bracket

TYPICAL FRl!QUlNCY RlSPONSI, 590T

1:111111111111111 20 so 100 1,000 10,000 20,000

'Push-to-talk FREQUENCY IN HERTZ

f f f f f Pre-wired cordsets come with con­nectors attached, ready to plug Into over 40 radio transceiver models.

5

SHURE IIOIILE COMUIICl1IOIISIIIIDHELD MICIOPIIOIB

:.~::::~:~:fr,rCORDSET TABLE

SHURE MODEL CONNECTOR TYPE RADIO EQUIPMENT

ALM-l No connector supplied Various

ALM-2 Five-pin molded rectangular Motorola Micor, Mitrek, Motrek, Syntor ALM-3 Modular Type Motorola Mostar

ALM-5 Four-pin round Midland Syntecht

ALM-6* Five-pin round E.F. Johnson LTR 8700t, SOL t, PPL t, Fleetcom lit

ALM-8* Modular Type E.F Johnson Challenger, Regency RTE 2020

ALM-l0 Flat (PC Header Mating) GE Phoenix series and PSX

ALM-ll Flat (PC Header Mating) GE CMX, MLS and TMX series

ALM-12 Five-pin round Uniden FMH3500, AMU250 FTS 250S, FMU 250

ALM-14* Modular Type E.F Johnson RSOL series

ALM-15 Five-pin round Motorola Mocom 35 ALM-16** Five-pin round E.F Johnson LTR 8700t,

SOLt, PPLt, Fleetcom lit; when used with 890n OTMF microphone

ALM-18** Modular Type E.F Johnson Challenger, RSOL Series; Regency RTE 2020; when used with 890n DTMF microphone

CORDSET MODEL RADIO BRAND RADIO MODEL 590T 890"

MOTOROLA MICOR ALM-2 ALM-2 MITREK ALM-2 ALM-2 MOTREK ALM-2 ALM-2 SYNTOR ALM-2 ALM-2 MOSTAR ALM-3 ALM-3 MOCOM 35 ALM-15 ALM-15

GENERAL ELECTRIC CMX series ALM-ll ALM-ll

MIDLAND E.F JOHNSON

REGENCY

UNIDEN

*For 590T microphone only **For 890n microphone only

PHOENIX series ALM-l0 TMX series ALM-ll PSX ALM-l0 MLS series ALM-ll

SYNTECHt ALM-5

LTR 8700t ALM-6 SOLt ALM-6 PPLt ALM-6 FLEETCOM lit ALM-6 CHALLENGER ALM-8 RSOL series ALM-14

RTE 2020 ALM-8

FMH3500 ALM-12 AMU 250 ALM-12 FTS 250S ALM-12 FMU 250 ALM-12

tPlease refer to data sheet for appropriate value of bias resistor if not already installed in radio.

ALM-l0 ALM-ll ALM-l0 ALM-ll

ALM-5 ALM-16 ALM-16 ALM-16 ALM-16 ALM-18 ALM-18

ALM-18

ALM-12 ALM-12 ALM-12 ALM-12

SHU;U:®

MOBILE COMMUNICATIONS/HANDHELD MICROPHONES

In addition to the new MODULlNK™ SYSTEM 1, Shure manufactures a complete line of mobile communications handheld microphones that are the industry standard. There is a handheld microphone for virtually every application, from the FAA-approved noise-canceling 488T, designed specifi­cally to provide premium voice response under noisy aircraft operating conditions, to the compact, rugged 5148 Dynamic Microphone.

When you choose a Shure microphone for a mobile installation, you can be assured of reliability, ruggedness and outstanding sound performance. That's the reason so many emergency services insist on Shure Mobile Communications Microphones for both dispatch and vehicle applications, because they know that there are times when a properly working microphone may mean the difference between life and death.

The classically styled 4048 is a workhorse designed for extreme ruggedness, reliability and clear, natural voice response. It features a Million-Cycle Plus 1M push­to-talk leaf switch with an extra contact for either shorted or open circuit. It is recommended where extreme operating conditions are the norm. The 4048 has a rugged impact-resistant case and durable neoprene cable. Frequency Response: .... 200 to 4.000 Hz Impedance (@ 1 kHz): ... 200 ohms Recommended load: .... 1.000 ohms Output level ( @ 1 kHz): ... 22.5mV (-330 dB, 0 dB = 1V/l00 microbars) PH Switch: .......... Million·Cycle Plus'" leaf·type Cable Type: ... ' .. 4-conductor, 2 shielded, coiled Cable length: ......... 1.5m (5 It) Supplied Accessories: ... RK6MB Mounting Bracket Replacement Parts:. . .. C14C Cable, RK7S PH Switch, RK1C Case

R5E Cartridge

TYPICAL FREQUENCY RESPONSE. 404B

1:11 III111111111 50 1,000 10.000 20.000

FREQUENCY IN HfRTZ

Specifications same as 4048, except as follows: Recommended load: .... 100 kilohms Output level (@ 1 kHz): .. 212 mV (-13.5 dB, 0 dB = lV/l00 microbars) Cable Type: . . . . . 3-conductor, 1 shielded, coiled Replacement Parts: . . C12C Cable, R5F Cartridge, RK7S PH Switch

Supplied with connector attached to cable, configured for GE Progress Line* mobile equipment. Specifications same as 4048, except as follows: Recommended load: .... 100 kilohms Output level (@ 1 kHz): .. 0.20V (-14.0 dB, 0 dB = 1V/100 microbars) Cable Type: .......... 3-conductor, tinsel, 1 shielded, neoprene coiled Connector: . . .. Amphenol MC4M type (offset keying) Cable length: ......... 1.8m (6 It) Replacement Parts: ..... C11 C Cable & Plug Assembly

R5D Controlled Magnetic Cartridge, 90A 1056 PH Switch

Specifications same as 4048, except as follows: Type: .............. Carbon Frequency Response: .... 300 to 4,000 Hz Impedance: .......... 30 ohms (with 50 mA current) Recommended load: .... 100 ohms Output level (@ 1 kHz): .. 0.56V (-5.0 dB, 0 dB = 1 V /100 microbars) Cable Type: .......... 4-conductor, coiled Cable length: ......... 1.8m (6 It) Replacement Parts: ..... R10A Cartridge, C15C Cable, 90A1056 PH Switch

90B601 Case Back/Mounting Button Assembly 65F140A Case Front

*GE Progress line is a trademark of General Electric. **ReQuires external power source

The 404 series of handheld microphones are proven performers under the most extreme operating conditions.

7

MOIlLE COMMUNlClnONS/HlNDHELD MICROPHONES

r r t

The Million-Cycle Plus™ leaf switch is , I one more trademark of Shure's commitment to quality. All switch contacts are m?de of a silver and palladium alloy tal prevent tarnishing and fouling. The switch blaqes are made of spring-tempered nickel sliver so that they will bend but never break. And the blaDes are angled so that they wipe the contacts clean whenever the switch: is activated. Such attention to detail tooay is rare beoause it is cbstly. But at Shure, we insist on the best in order to achieve our high quality standards.

i i 1 t +

Tailored frequency response for clear, crisp voice reproduction. Built -in transistor amplifier matches carbon-type input circuitry and also provides suffi­cient output signal to permit use up to 100 feet (30m) of unshielded cable. Low hum pickup sensitivity and low RF susceptibility. Extreme ruggedness and very intelligible response make the 527C ideal for all emergency service mobile installations, as well as transportation, utility, forestry and radiotelephone. Frequency Response: .. 300 to 5,000 Hz Recommended Load: ... 220 ohms to 2.2 kilohms Output Level(@ 1 kHz): .. 0.28V (-11.0 dB, 0 dB = lV/l00

microbars)** PH SWitch: ........ Million-Cycle Plus"" leaf-type Cable Type: ......... 4-conductor, coiled Cable Length: ....... 1.8m (6 ft.) Supplied Accessories: . RK6MB Mounting Bracket Replacement Parts: ... R132 Cartridge & Amplifier Circuit

Board, 90A3507 Switch Assembly, 70A4163 Cable

TYPICAL FIIIOUINCY RESPONSE. 527C

I'jlllllllllill 20 so 100 1,000 lO,ooo 20,000

FMOUENey IN HERTZ

Specifications same as the 527C, except as follows: Type: .. ....... _ ... Dynamic Impedance (@ 1 kHz): .195 ohms Recommended Load: ... 1,000 ohms OutputLevel(@ 1kHz): .. 21 mV (-33.5 dB, 0 dB = 1V/l00

microbars) Cable Type: ......... 4-conductor, 2 shielded, coiled Replacement Parts: ... R131 Cartridge, 90A3507 Switch

70B4110 Cable

t

'ReQuires external power supplied by radio. "Measured with 10 Vdc, 470 Ohm load.

a

I I I

i i

The 514B provides a tailored frequency response for smooth, clear voice articulation. Its compact styling makes the 514B perfect for applications where an unobtrusive, comfortable-to-hold microphone is required. Featuring Shure's unequalled Million-Cycle Plus'" leaf switch and tough impact-resistant Armo-Dur® case. Frequency Response: .. 100 to 6,000 Hz Impedance (@ 1 kHz): .. 200 ohms Recommended Load: ... 1000 ohms OutputLevel(@ 1kHz): .. 15 mV (-36.5 dB, 0 dB = W/l00

microbars) PH SWitch: ........ Million-Cycle Plus"'leaf-type Cable Type: ......... 4-conductor, 2 shielded, coiled Cable Length: ....... 1.5m (5 ft.) Supplied Accessories: . RK6MB Mounting Bracket Replacement Parts: ... C25C Cable, 90Kl008 Switch

Rl03 Cartridge

TYPICAL PlllQUlNCY RESPONSE. 5148

Ij 11I1I111111 !O 100 1.000 10,000 20,000

fRIQUI1NCY IN HERTZ

The compact 5148 is designed to fit comfortably in the hand and is perfect for numerous mobile installations.

Well-suited for use where wind, traffic, machinery or other noise may interfere with communications. The 419B provides high intelligibility through an optimal combination of tailored frequency response, direction­ality and distance discrimination. Compact, durable and resistant to mechanical shock. Million-Cycle Plus ThO leaf switch withstands rigorous use. Frequency Response: . . 200 to 4,000 Hz Impedance (@ 1kHz): .. 200 ohms Recommended Load: ... 1000 ohms OutputLevel(@ 1 kHz): .. 9.4 mV (-40.5 dB, 0 dB = 1V/l00

microbars) PH SWitch: .... .... Million-Cycle Plus'" leaf-type Cable Type: ......... 4-conductor, 2-shielded, coiled Cable Length: ....... 1.5m (5 It) Supplied Accessories: . RK6MB Mounting Bracket Replacement Parts: ... R19B Cartridge, C25C Cable

90Al084 Case Front, 90Al047 Case Back, RK15S Switch 65A240A Switch Button

TYPICAL _QUENCY RlSPOHSE, 419.

! ::IIIII~IIIIIIIIII 20 SO 100 1.000 lO,OOG 20,000

FREQUENCY IN HERTZ

MOBILE COMMUNIClnONS/HANDHELD MICROPHONES

FAA-certified for private and commercia) aircraft use, the 488T delivers extremely clean, crisp voice reproduction. Noise-canceling function discriminates against ambient noise, such as engines, props, wind and vibration, originating at distances over 6 inches (15 cm). The cable is supplied with a PJ-068 plug for instant hookup to standard aircraft radio jacks. Frequency Response: .. 200 to 4,000 Hz Recommended Load: ... 100 ohms to 2.2 kilohms Output Level (@ 1 kHz):. 0.56V (-5.0 dB, 0 dB = 1V 1100

mlcrobars)** PH SWitch: ...... .. Million-Cycle Plus ThO leaf-type Cable Type: ......... 3-conductor, coiled Plug Type: ....... .. PJ-068 2-circuit phone plug Cable Length: .... .. . 1.7m (5.5 It) Supplied Accessories: . RK6MB Mounting Bracket Replacement Parts: ... R88T Cartridge Assembly

90A2990 Switch, C22C Cable

This rugged, handheld microphone is ideal for exces­sively noisy environments, such as heavy equipment operations. Designed to provide clear, intelligible voice response, the 577B achieves superior noise cancellation through highly directional operation and discrimination against all sound from distant sources. Million-Cycle Plus 1M leaf switch, heavy-duty neoprene cable and high-impact-resistant case will give trouble-free service. Frequency Response: .. 100 to 5,000 Hz Impedance (@ 1 kHz): .. 175 ohms Recommended Load: . . . 1000 ohms Output Level(@ 1 kHz): .. 5.0 mV (-56.0 dB, OdB = 1V/l00

microbars) PH SWitch: ........ Million-Cycle Plus'" leaHype Cable Type: . . ....... 4-conductor, 2-shielded, coiled Cable Length: ....... 1.8m (6 It) Supplied Accessories: . RK6MB Mounting Bracket Replacement Parts: . . . 90A3507 Switch, R98B Cartridge

TYPICAl. F1IIOUINCY IISPONSE. 4NT TYPICAL F1IIOUINCY IISPONSE. 577.

!':lllllllllllllll "j 1!lllllllllilIUl 'RiQUINCY IN HERTZ fREQUENCY IN HERTZ

*ReQuires external power supplied by radio. '*Measured with 10 Vdc, 500 ohm load.

MOBILE COMMUNICATIONS/BASE STATION MICROPHONES

New-all-metal screen/grille provides extra ruggedness, reliability and protection for the cartridge. With momentary PIT switch, this extra-rugged, heavy-duty mic with unidirectional (cardioid) pickup pattem provides excellent voice reproduction with effective feedback suppression. Shock­mount isolates cartridge so accidental handling and impact noise is reduced. The new all-metal screen/grille assembly protects the microphone from damage due to rough handling. This is the standard base station microphone for many dispatch applica­tions, including emergency services-police, fire and health-as well as trans­portation, taxi and trucking dispatch. Frequency Response: .. 80 to 13.000 Hz Impedance (@ 1 kHz): .. 170 ohms Recommended Load: ... 1.000 ohms OutputLevel(@ 1 kHz): .. 0.08 mV (-82.0 dB. 0 dB = lV/mlcrobar) PH SWitch: ........ Momentary. Million-Cycle Plus'" leaf-type Cable Type: ......... 4-conductor (2 shielded) Cable Length: ....... 1.3 m (51 in.) Dimensions: ........ 159 mm Lx 37.3 mm Dia. (61M x 1'0/32 in.) mic. 635 mm L x 37.3 mm Dia.

(25 x 1'%,ln.) w/goose WeIght: ........... 1.02 kg (2 Ib 4 oz) Replacement Parts: ... R15 Cartridge. 90A3537 Switch. 70A4063 Cable G18 Gooseneck

A 13HD Mounting Flange. 90DN2600 Metal Screen/Grille Assembly

TYPICAL FREQUENCY RESPONSIi, 515_

1':llzIIIIIIIIIIII 20 50 100 1,000 10,000 20,000

FREQUENCY IN HERTZ

Supplied without gooseneck and mounting flange, it's ideal for fixed pipe or other mic mounts. Specifications same as 5158B-818, except as follows: Cable Length: ....... 1.8 m (70 in.) Dimensions: ........ 159 mm L x 37.3 mm Dia. (61M x 1'%, in.) WeIght: ......... .. 425 grams (15 oz)

10

- . - - .. '" - . - '" .. , · --· . · . · . - .

Shure makes a complete line of microphones for every base station application. They have been the overwhelming choice of communi­

cations users for over 30 years. With a wide selection of features, performance characteristics and price, more Shure microphones are in use than any other brand. Where reliable

operation can be critical to life, such as in public safety applications, Shure microphones are the preferred choice_

I I

MOBILE COMMUNICATIONS/BASE STATION MICROPHONES

Designed to withstand abnormal moisture and temperature conditions, the 562 is perfectly suited for high-noise environments found in some mobile dispatch operations, such as numerous dispatchers in close quarters-even in situations where there is so much noise the dispatcher cannot hear himself talk. Excellent voice reproduction, highly intelligible speech communication and ruggedness.

The 562 fits Shure goosenecks (not supplied) with o/s" diameter (see below). Frequency Response: .. 100 to 6,000 Hz Impedance (@ 1 kHz): .. 180 ohms TYPICAL FMQUENCY RESPONSii. 562

Recommended Load: ... 1,000 ohms Output Level (@ 1 kHz): .. 0.06 mV (-84.0 dB, 0 dB = lV/microbar) Cable Type: ......... 2-conductor shielded Cable Length: ....... 1.2m (4 tt) Switch: ........... Requires external switch (not supplied) Dimensions: ........ 67 mm Lx 34.6 mm Dia. (2% x 1% in.) Weight: ........... 128 grams (8.5 oz) Supplied Accessories: . No.4 Allen Wrench Replacement Parts: ... 70A292 Cable, R90 Cartridge, RK183G Screen/Grille Assembly

31 A 1238A Case :11 lillllllllllllllill

A 13HD Heavy Duty Mounting Flange

A 12 Mounting Flange with standard o/s", 27 external thread.

Modern low profile design provides a stable base for any length Shure gooseneck. Non-reflective, textured gray finish. Weight is 1 Ib 6 oz. (681 grams). Size: 73 mm H x 116 mm W x 165 mm 0 (2Ys" x 4'Y16" x 6%,,).

20 so 100 1,000 10,1)00 20.000

FREQUENCY IN HERTZ

High quality, flexible goosenecks with "silent" design limits mechanically induced noises. They feature standard o/s", 27-thread base. Goosenecks are either side vented, or supplied with 3-socket audiO connector for attachment to microphone.

G6A 152 mm (6 in.) flexible gooseneck with side vent.

G12 305 mm (12 in.) flexible gooseneck.

G12-CN 305 mm (12 in.) flexible gooseneck with 3-pin audio connector.

G18 457 mm (18 in.) flexible gooseneck.

G18A 457 mm (18 in.) flexible gooseneck with side vent.

GlB-CN 457 mm (18 in.) flexible gooseneck with 3-pin audio connector.

Detail of gooseneck (G6A or G18A only) shows side vent for situations where it is impractical to run wire through surface mount.

11

MOBILE COMMUNICATIONS/BASE STATION MICROPHONES

Designed for high speech intelligibility and reliability. Features a convenient switch for easy changeover from low to high impedance. Million-Cycle Plus 1M PH leaf switch activates both mic and relay circuits. Fingertip control bar can be locked for installations that require constant voice input or hands-free use. Mic height adjusts for user comfort. Frequency Response: .... 100 to 10,000 Hz Impedance (@ 1 kHz): ... Low: 210 ohms;

High: 15 kilohms nominal Recommended Load: .... Low: 1,000 ohms; High: 100 kilohms Output level (@ 1 kHz): .. Low: 0.25 mV (-72.0 dB). High: 2.24 mV (-53.0 dB)

o dB=1V/microbar PTT SWitch: .......... Million-Cycle Plus:,", locking or momentary Cable Type: .......... 4-conductor, 2 shielded Cable length: : ........ 2.1m (7 It) Dimensions: .......... 236 mm H x 101 mm W x 144 mm D (9%6 x 36%. X 15')1" in.) Weight: ............. 736 grams (lib 10 oz) Replacement Parts: ..... R44D Cartridge

70A494 Cable RK141S PTT Switch 90Al060 Screen Assembly

Optional Accessories: .... RK199S Transmit/Monitor Split· Bar Switch Kit

Ij lllttiUl

12

For maximum voice intelligibility in noisy environments. Cardioid (unidirectional) pick-up pattern suppresses extraneous noise in the user's vicinity as well as from other dispatch operations within sound range. It is also highly effective in suppressing feedback.

The 522 features a dual-impedance switch for easy changeover from low to high. Million-Cycle PlusIM PH leaf switch with locking or momentary action activates microphone circuit and external relay circuit. Telescoping neck adjusts for user comfort.

Frequency Response: .... 60 to 11,000 Hz Impedance (@ 1 kHz): ... Low: 260 ohms; High: 15 kilohms nominal Recommended load: .... Low: 1,000 ohms; High: 100 kilohms Outputlevel (@ 1 kHz): .. Low: 0.12 mV (-78.5 dB). High: 1.5 mV (-56.5 dB)

o dB=1V/microbar PTT SWitch: .......... Million-Cycle Plus:,", locking or momentary Cable Type: .......... 4-conductor. 2 shielded Cable length: ......... 2.1m (7 It) Dimensions: .......... 248 mm H x 102 mm W x 144 mm 0 (9% x 4 x 5')1,6 in.) Weight: ............. 736 grams (1lb 10 oz) Replacement Parts: ..... 70A494 Cable

R89 Cartridge 90A3539 PTT Switch 90A1358 Screen/Grille Assembly

Optional Accessories: .... RK199S Transmit/Monitor Split-Bar Switch Kit

It HilJII11 \ ~

Adjustable microphone head telescopes up to 2 W~

1...----.-11 Dual Impedance SwitCh!

~ Optional split·bar monnor transmit switch (RK199S) allows user to /TIonitor chan· nel with SQuelch Circuit dis· abled prior to transmission. Meets FCC reQuireme~ts for coded systems.

1

MOBILE COMMUNICIDONSIAMITEUR RADIO FIXED STAIION

The 444D offers the serious ham enthusiast switch selectable impedance, a normal/VOX selector and the Million-Cycle Plus 1M leaf switch with locking and momentary action. The frequency response is tailored for optimum speech intelligi­bility. Designed for easy connection, the cable leads are configured for immediate hookup to transmitters with either isolated or grounded switching. Shure also supplies an Amateur Radio Wiring Guide. In addition, purchasers can receive a free individually printed plate with their station's call letters. Frequency Response: .... 200 to 6,000 Hz Impedance (@ 1 kHz): ... Low: 190 ohms; High: 15 kilohms nominal Recommended Load: .... Low: 1,000 ohms; High: 100 kilohms Output Level (@ 1 kHz): .. Low: 0.33 mV (-69.5 dB). High: 2.82 mV (-51.0 dB)

o dB=1V/microbar Switches: ........... Million-Cycle Plus:" PTT, locking/momentary

Impedance slide switch NormallVOX slide switch

Cable Type: .......... 3-conductor, 1 shielded, coiled Cable Length: ......... 2.1 m (7 It) . Dimensions: .......... 236 mm H x 101 mm W x 144 mm 0 (9'%, x 36%, x 15'Y,6 In.) Weight: ............. 784 grams (lib 12 oz) Replacement Parts: ..... Rlll Cartridge, 70A549 Cable, 90Fl060 Screen/Grille Assembly

90A3695 PH Leal Switch, 90A2992 Base Plate/Switch Assembly 55Cl19 HI/LO Impedance Slide Switch, 55Al19 Normal/VOX Slide Switch

Optional Accessories: ... 90BR2600 Straight Cable RK199S Transmit/Monitor Split-Bar SWitch Kit

This transistorized base station mic can be used to replace dynamic or ceramic, high or low impedance microphones. It is designed for clear transmission and provides criSp, undistorted voice response for optimum intelligibility of transmission.

Million-Cycle Plus 1M leaf switch features locking or momentary action. Output level control for highest undistorted output. Microphone wiring is designed for easy and versatile connection. Frequency Response: .... 200 to 6,000 Hz Recommended Load: .... Greater than 500 ohms Output Level (@ 1 kHz): .. Adjustable Irom 0.61 to 16 mV (lor 1 microbar Input with

100 kilohm load) PH SWitch: .......... Million-Cycle Plus:" leal-type, locking/momentary with SPOT lor

mic circuit and OPOT lor relay circuit Cable Type: .......... 5-conductor, 1 shielded, coiled Cable Length: ......... 2.1 m (7 It) Dimensions: .......... 264 mm H x 108 mm W x 149 mm 0 (10% x 4\4 x 5¥6 in.) Weight: ............. 920 grams (2 Ibs) .. Replacement Parts: ..... R96 Cartridge, 9001844 Grille Assembly, 90A2351 Battery Retaining

Clip, 53A1459A Baseplate, 70A544 Coiled Cable, 90A2595 Switch Blade Assembly (6-Blade), 90A3510 Switch Blade Assembly (4-Blade) 65A1279A PH Control Bar, 46A060 Volume Control, 90A2721 Printed Circuit Assembly

'ReQuires 9 volt battery

TlPtCAL fMOUINCY IIII"ONII, S26TsatlSa

Adiustable microphone head telescopes up to 2Y2'j

TI~ _

1 1 13

SHURE

For ease of comparison, we have provided the guide below to assist In your selection of the Shure microphone that best meets your communications requirements. First, determine which speCi­fications at the top of the chart meet your microphone application requirements. Next, determine whether your application calls for a handheld, gooseneck, desk-top, or amateur radio microphone. Then, choose the Shure microphone model that corresponds to the specifications your application requires.

.. "' ....... ." .. I'IVU""'WR.

HANDHELD

MODEL

890TT

590T

404B

404C

PAGE TYPE

3-6 CONDENSER

3-6 DYNAMIC

7 CONTROLLED MAGNETIC®

7 CONTROLLED MAGNETIC®

SPECIAL FEATURES

• • • ••• (5) DTMF MULTI-FUNCTION KEYPAD

.(2) •• • • • • • • • • • •

405K 7 CONTROLLED MAGNETIC® • • • CONFIGURED FOR GE PROGRESS LINE MOBILE EQUIPMENT*

104C 7 CARBON (1) • • • 527C 8 DYNAMIC • • • • 527B 8 DYNAMIC • • • 514B 8 DYNAMIC • • • COMPACT SIZE

419B 9 CONTROLLED MAGNETIC® • • • COMPACT SIZE

488T 9 CONTROLLED MAGNETIC® • • • • FAA CERTIFIED

BASE STATION GOOSENECK

BASE STATION DESK·TOP

577B

515SB-G18

515SBG

562

450

522

9 DYNAMIC

10 DYNAMIC

10 DYNAMIC

11 DYNAMIC

12 CONTROLLED MAGNETIC®

12 DYNAMIC

AMATEUR RADIO 4440 13 CONTROLLED MAGNETIC®

• • • • • • GOOSENECK SUPPLIED

• • • • • (6)

• • • .(4) •

• • • .(4) •

• • • .(4) •

FIXED STATION 526T SERIES 1I 13 DYNAMIC • (3) • • • • • SPOT AND SPST SWITCHES PROVIDED

*GE ~s Line Is a lrademalk 01 Genelal ElectriC.

14

1. Requires external power source. 2. Transistor amplifier may be bypassed for unpowered dynamic

microphone output. 3. Requires 9-volt battery as external power source. 4. Tone coded squelch compatible only when split-bar conversion option

is Installed. 5. Mllllon-Gycle Pluslll leaf switch actuates electronic PTT switching

functions. 6. Requires external switch (not supplied).

SHU;U:®

MOBILE COMMUNICATIONS PRODUaS

.. The method by which the microphone converts acoustical energy to electrical energy.

Dynamic: A coil of wire, fastened to a diaphragm, moves in a magnetic field in response to sound waves arriving at the diaphragm, thus inducing minute voltages in the coil which constitute the electrical output of the microphone.

Controlled Magnetic@: A diaphragm moves an iron armature which conducts a magnetic field through a stationary coil, generating an electrical signal.

Carbon: Tiny carbon granules are suspended between a conductive diaphragm and a conductive backplate in a cylindrical cavity. Sound waves striking the diaphragm compress the granules, varying their resistance to a current from a battery or external power source. This changing resistance modulates the current, resulting in an audio output voltage.

Condenser: A diaphragm moves to sound waves, varying the spacing between capacitor plates. This changes the capacitance and, through additional circuitry, generates minute voltage changes. The condenser microphone requires an impedance-converting preamplifier and external power source for operation.

• I

The relative output of the microphone versus frequency in the audio spectrum, specified in a range, such as 50 to 15,000 Hz (hertz).

The frequency response curve shown for each Shure communications microphone shows an accurate picture of the microphone's range and response. The curve represents the output voltage, expressed in dB (decibels) versus frequency in hertz.

The frequency response of a Shure communications microphone is carefully tailored to the voice-frequency spectrum to optimize articulation and reduce unwanted high and low frequency background noise.

• I I' • I

The relative sensitivity of a microphone to sounds arriving from different directions.

Omnidirectional: Little variation in output voltage as a sound source moves around the microphone.

Unidirectional: The microphone is least sensitive to sounds originating at its rear and has reduced sensitivity to sounds from its sides. The cardioid (heart-shaped) pattern is the most common form, which has a null at its rear and is half as sensitive to sounds from the sides as it is to sounds from the front. The supercardioid pattern is more directional, about 40% as sensitive to sounds from the sides and rear as to sounds from the front.

Bidirectional (figure eight): These microphones are equally sensitive to sounds originating from the front and rear, and least sensitive to sounds from the sides.

Noise-Canceling: This microphone is insensitive to sounds originating from its sides and discriminates against distant sounds in favor of sound sources near the microphone.

• I' • I

Microphone impedance is specified as a rating followed by the actual impedance in ohms. Common ratings are: 150 ohms (actual impedance may be from 75 to 300 ohms), 600 ohms (actual impedance from 300 to 1,200 ohms), 2,400 ohms (actual impedance from 1,200 to 4,800 ohms), and high-impedance (actual impedance greater than 10,000 ohms).

High-impedance microphones have a higher open-circuit output voltage than low-impedance microphones, but are more susceptible to hum and buzz pickup and high-frequency loss in their cables. They are generally limited to cable lengths under 20 feet.

Selecting the proper microphone impedance versus the input impedance of a transceiver or amplifier is done: (1) to maximize the microphone output Signal, (2) to preserve the full frequency response, and (3) to minimize pickup of unwanted signals. In general, for optimum performance, the actual equipment input impedance should be 5 to 10 times that of the microphone.

An expression of the voltage or power output for a given sound pressure.

Open Circuit Voltage: The open circuit voltage is an "unloaded" figure in that there is no voltage drop due to the measuring instrument. The output is specified in both volts and decibels (dB). Less sensitive microphones have larger negative decibel numbers and more sensitive microphones would have smaller negative numbers.

Power Level: The power level is specified with a matched load, for instance an actual 200-ohm microphone matched to an actual 200-ohm amplifier input impedance.

I·

Hum (60 Hz or its harmonics) from fluorescent lights, amplifiers, power cables and other electromagnetic sources can be picked up by a microphone voice coil, transformer, or by an ungrounded or unshielded case. A humbucking coil greatly reduces pickup of magnetic hum and careful attention to grounding and shielding in the design reduces hum pickup through the case.

Magnetic hum sensitivity is specified as equivalent dB SPL for a l-millioersted magnetic field. This means that if the microphone is immersed in a 1 mOe field, the hum output of the microphone will be the same level as that caused by an acoustic signal at the specified dB SPL intensity.

Additional specifications and technical descriptions for Shure Mobile Communication Microphones are available upon request. To receive a data sheet on any particular microphone, write to:

Shure Brothers Inc. Customer Service Department 222 Hartrey Avenue Evanston, Illinois 60202-3696

15

Shure Brothers Incorporated 222 Hartrey Avenue Evanston, IL 60202-3696 312/866-2553

AL901 Printed in U.S.A. (09/87) 30K