AlanDick Broadcast Ltd. - ITU...2013 – DVB-T2 – Antenna & Combiner System, Singapore. 2014 -...

AlanDick Broadcast Ltd. / Jampro Antennas Inc.

2016

Analogue to Digital Transition

Digital Broadcasting: Issues & Challenges

Agenda

AlanDick Broadcast / Jampro – Brief Introduction Review of companies capabilities

Digital Considerations Reception, who / where is your audience? Coverage and Planning Issues for Digital

Standards Service Reliability

Timescales / Existing services

Products for Digital Antennas Filters / Combiners Services

ADBL / Jampro – experience and Site References with Digital deployments

Company Introduction

AlanDick: Oldest Antenna / Combiner / Tower company in UK, Since 1967

Sister company of

Jampro: Oldest Broadcast Antenna / Combiner company in North America, Since 1954

Over 25,000 broadcasters worldwide benefit from the quality and performance of the

companies Systems

Company CapabilitiesADBL / Jampro can supply everything from

product, services and turnkey solutions.Nearly all products are designed and fully

manufactured in house.

AntennasCombiners / FiltersCoaxial / Rigid LineTowersInstallationSystem Solutions Foundations

BuildingCU

ModuleCU

Module

RFTX

ChA

RFTX

ChBSatRX

PIEAVR

PatchPanelSwitch

Regions – Technical & Sales

Canada / East USA

R. Wayne Youngwayne.young@jampro.com

Mexico / Latin America

USA/Latin America

Asia Pacific

Ben Creaseben.crease@jampro.com

ben.crease@alandickbroadcast.com

Eastern / Central USA

Sacramento / West USA

Wilbur Bran wilbur.bran@jampro.comJeffrey Clarinejeffc@jampro.com

Greg Montanogreg@jampro.comSonia Del Castillosonia@jampro.com

Alfredo Avalosalfredo@jampro.com

Jim Godfreyjim.godfrey@jampro.com

Office Key :-

- Sales

- Technical & SalesUK/EMEA (ADBL)

Chris Randallchris.randall@alandickbroadcast.com

Alex Perchevitchalex@jampro.com

ALL

Middle East (ADME)

Warren Steelewarren.steele@alandickae.com

India

Ravi Dahiyaravinder@jampro.com

Key Digital Milestones 1993 - Introduced First DTV Antenna Solutions 1994 - Design a dual aperture FM and DAB antenna especially for the BBC customer. 1995 - First of many installations for DVB-T in the UK for what is now Arqiva, including

Crystal Palace and Croydon the main London Tx sites. Supplied to majority of Arqiva sites. 1999 - DAB antenna in Singapore and Brunei 2001 - DVB-T UHF Combiner in Singapore 2002 - Digital TV supply to Nam San, Seoul 2004 - Multiple UHF digital ready systems for TV7 Indonesia 2005 - First DTV station on air in Latin America for TV Azteca. Now >120 Digital Chs on air 2006 - Tallest broadcast structure - highest power TV system in Asia. Indosiar

400m tower and 320 kw UHF TV system, 3 analogue and 2 DVB-T 2008 – Tower, Antenna & Combiner for DVB-T in Brunei 2012 – Multiple DVB-T Antennas / Combiner mask filters for VTV, Vietnam 2012 – Digital systems Antennas and install, ABS/CBN Philippines 2012 – DVB System, Brunei 2013 – DVB-T2 – Antenna & Combiner System, Singapore. 2014 - Ch. 3 CPOL Antenna, New York City Times Square, 1st new TV station in 20+ years. 2014/15/16 - DVB-T2 – Repeater / Gap Filler Antennas (Roof Top), Singapore 2015 - Televisa Nationwide expansion of Digital TV Network 2015 - TV Azteca 48 broadband UHF Super Turnstiles and 5 kw mask filters 2016 - Epol upgrade to main ABC5 antenna covering Manila – in progress

Considerations for Digital

Digital applicationWhere is your Audience

Coverage Planning, for that audienceStandard, Modulation Parameters. Service Reliability for Mobile/Indoor ReceptionPerformance Target

Implementation considerationsTimescales / Existing services

Digital Application

Fixed Reception (traditional Analogue)Only to serve house holds roof top antenna

Portable, OutdoorHand held devices (mobile reception)

Portable, IndoorBoth Home and hand held devices (mobile)

Difference applications means different minimum recommended RF levels

Digital standards & where

DVB-T/T2: Erope, Middle East, Africa & Asia (except Korea, China, Japan & Philippines) a few Latin American countriesATSC->3.0: (USA, Canada, Mexico & South

Korea)DTMB: GB20600-2006 (GB stands for guo biao,

“national standard” in Chinese)ISDB-T: Japan, PhilippinesSBTVD-T (aka ISDB-TB): most Latin American

countriesAll OFDM signal modulation

DVB-T Planning Field Strength Requirements

DVB-T Planning Field Strength Requirements

~20dB+ because 0 gain RX & reduction of height

~10dB++ because building loss

Payload capacity / data bandwidth

Size of Coverage Area (SFN)

Robustness of decoding signal

Doppler performance (max handset speed)

Modulation Parameters

ConstellationGuard Interval

Error correction FTT / No carriers

The Success of Mobile Reception

Service Reliability is Key

Reliability of Service - Polarization

Experiment Results – Heavy Scatter, Depolarized Environment

Circular GoodMust have

orthogonal waves

Elliptical betterOverall range

and reliability

Performance Target, Realistic

Guaranteed results?ConsultantsExtensive PlanCriteria Set

Limited budgetCopy Analogue, but digital

Somewhere in between?

Implementation considerations

Existing Transmission StructureDoes it have structural capacity?Does it have space, and suitable space?

Existing Broadcast systemDoes it have additional power rating?Does it have bandwidth?Is it digital ready?Is it possible to combine?

Planning - Digital transition timescales

Timescales from 1st digital transmission to analogue switch off (digital switch on) is typically 10-15 years.

Analogue & Digital both required during this time!

Dual castSeparate or Combined systems?When will you need to cover indoor/mobile?

Digital to Analogue transition - Stages Analogue (Pre-Digital), All Revenue from this!

No Plans for Digital Planning for Digital

Initial Digital Basic Digital “Introduction”, just on air Main Coverage Analogue, remains critical importance

Medium Term Assess market feedback and adoption rate. Improve or adapt digital signal, change of parameters or even standard Analogue still critical, some disruption allowed/acceptable

End Game (for Analogue) Change digital to be prime signal, best transmission locations Analogue still required until switch off day

After End Game Digital Restacking / Repacking / Refarming Further potential changes due to loss of total Broadcast bandwidth This could happen more than once! Even a possible band change.

Products for Digital

AntennasPanels HPOL/VPOL/EPOL/CPOLSlotsBroadband SlotsSuper TurnstyleDipole arrays - VPOL

Combiners and SwitchingMask Filtering – Reflective and Constant ImpedanceCombiningPatch Panels –Rigid transmission line & components Integrated solutions

Antenna options for adding Digital

Single channel – limited bandwidthSimpler / quicker initial option

Broadband – Multiplexing ChannelsMore Complex

Gap Filling

UHF Panel Antenna

BroadbandLow VSWR over many channelsUHF 470-890 MHzModular Design Omni or custom azimuth patternsFiberglas Radome Protection

JUHD UHF panel systems

RCTI 240kw300m

Indosiar320kw400m

TPI Global280kw300m

Top Mount high power, high Gain Broadband array

Omni Directional

32 Lambda

UHF Panel antennas - Advantages

Broadband 470 – 860 MHzVarious power levels from low to high.Azimuth Patterns (HRP) – standard and

customElevation Patterns (VRP) – Beam tilt and

null levels can varyCorporate or parallel fedMany Panels – not a single source of

failure

UHF Panel antennas - Disadvantages

High weight and wind loadingCorporate feed – many cables, splitters,

dividersComplex installationsMixed polarisation increase Complexity

furtherMany Panels / componentsMountingAdvance planning engineering

JUHD Standard Azimuth Patterns

Omni Wide Cardioid Narrow Cardioid

Peanut Single Lobe

Wrap Around SolutionsCraigkelly – ScotlandMain digital antenna (Band 4& 5): Comprises 8-Tier of 4 UHF panels which provides omni directional pattern. Broadcasting 6 channels with 2.32kW transmitter powerReserve DSO Antenna (Band 4 & 5): Comprises 6-Tier wrap around cogged antenna of 18 UHF panels around. Broadcasting 6 channels with 3.28kW transmitter power.

Wenvoe- Wales5-Around; 12-TIER omni pattern7 Channels 4.5kW transmitter power

Custom Solution

Jampro Pro Star Slot Antennas

Input power 1-70kW+ per inputHorizontal, Circular or Elliptical Tested in full scaleMulti channel designs Side or top mountedElectrical beam tilt & null fillEasy installationVSWR 1.1:1 over channelsSlots produced over 30 years

Several Models, All Pressurized:

JA-SS low cost, small size, low wind load, sidemount on existing towerJA/LS 2 kW excellent weather resistanceJA/MS to 30 kW analog, 10 kw AVRG DVB-T ideal

for combining DVB-T services to exiting towerJSL 20 kW premium model low power slotJSM 30 kW premium slot for medium powerJSH 70+ kW high power premium performerJTW 120 kw+ Super High power slot

The JA/MS-BB Broadband Slot

Power handling up to 15kW+ AVG Broadband for multiple channels typically 50-60 MHz, 120Mhz + available8, 12, 16 or more baysStandard patternsSide or Top MountStable elevation (VRP) performance

VSWR plotOf a JA/MS-BBBroadband slot antenna

UHF Slot antennas - Advantages

Weight and wind loading 50 to 75% less than a panel systemThis means savings on complete tower system.

Broadband, standard 50-60 MHz up to 120 MHz+ Various power levels from low to high.Azimuth Patterns (HRP) – standard and customElevation Patterns (VRP) – Beam tilt and null levels

can varySimple to implement elliptical / circular polarizationMechanically simplisticEasy to Install

UHF Slot antennas - Disadvantages

Bandwidth limited

Tower effects – for side mounts

Ability to change add other channels at future date.

Antenna Comparison

Small ApertureLow GainLess Distance

Large ApertureHigh GainMore Distance

Panel vrs SlotSame weight and windload different gain

Antenna ComparisonPanel vrs SlotSame gain different weight and windload

Same Vertical ApertureWorse WeightWorse Tower Stress

Same Vertical ApertureMuch better WeightMuch better (lower) Tower stress

Antenna ComparisonPanel vrs SlotSame circular/elliptical polarization, different power distribution

Same Vertical ApertureWorse distribution (X2)More points of failure (X++)

Same Vertical ApertureBetter distributionLess points of failure

Standard Azimuth Patterns

Omni Cardioid Medium Cardioid

Peanut Narrow Lobe

JAT-U UHF SuperTurnstyle

Input power 10kw digitalGain 5 - 11 dBFull band UHFOmni directional patternSimple Installation

Antennas Panel SuperTurnstyle Slots Hemisphere

Combiners Filters Hybrids Constant Impedance

Rigid Line Components

Gap Filler Solutions

UHF AntennaRange of Power Levels From 50w to 320kw

Different Styles Panel, SuperTurnstyle, Slot

Range of Gains & PatternsMultiple Chs

UHF Panel Antenna

BroadbandLow VSWR over many channelsUHF 470-890 MHzModular Design Omni or custom azimuth patternsFiberglas Radome Protection

JUHD Horizontally Polarised

JUVD Vertically Polarised

JUCD Circularly Polarised

Panel

Typical mounting arrangement Around Tower Example: JUHD-1/4(4)

Panel

Input power to 10kw digitalGain 5 - 11 dBFull band UHFOmni directional patternSimple Installation

UHF SuperTurnstyle Antenna

JAT-U Horizontally Polarised

JVD-U Vertically Polarised

Superturnstyle

UHF Slot Antennas

Input power 1-70kW+ per inputHorizontal, Circular or Elliptical Tested in full scaleMulti channel designs Side or top mountedElectrical beam tilt & null fillEasy installationVSWR 1.1:1 over channelsSlots produced over 30 years

Broadband Slot - JA/MS-BB Power handling up to 10 kW AVRG Broadband for multiple channels typically 50-60 MHz, 120Mhz + available8, 12 or 16 baysStandard patternsSide or Top MountStable elevation (VRP) performance

Super Slot Antenna - JA-SSInput 1 kW to 3 kWUHF band - 470 to 890 MHz Wide bandwidth option available (1 to 3 channels)Low Cost-Outstanding Performance 4, 8, 12 or 16 BaysFive Azimuth PatternsIdeal for lower power analog and DTV , DVB-T applications.Low VSWRSide mounted system standard.Side mount brackets included.

Slot Antenna - JL-SS

Input up to 1 kWSingle UHF ChannelIdeal for Boosters and Gap FillersLow Cost-Outstanding Performance 4 BaysOmni Azimuth PatternLow VSWRLow weight - wind loading

Typical mounting arrangementsSide Mounted

Top Mounted In-Bed Flange

Slot Antenna

UHF Hemisphere

Input up to 50WAll UHF Channels & more 470 – 2500MHz

Ideal for Indoor transmission, Pico repeaters or small gaps.Omni Azimuth PatternLow VSWRLow weightSimple Installation

Combiners & Switching

Mask filters

Starpoint

Constant Impedance

Integrated Solution

RCEC Mask filter – Reflective

FRONT VIEW

TOP VIEW

TYPICAL SPECIFICATIONS

-6 section Cross coupled -Steep rejection-High Q cavities-Low insertion loss-Critical mask

3-CHANNEL UHF STARPOINT COMBINER

- Star Point combining

-Cost effective

-Non critical Mask

2-CHANNEL UHF MED. POWER BALANCED COMBINER

-Constant impedance

-Compact size

-Limited power handling

-Good isolation

-Coaxial components

-Critical Mask

6 Channel Dual Chain High Power Channel CombinersEach channel 6kw Digital power10 channels future capacity

HIGH POWER DIGITAL, UHF BAND, CRITICAL MASK, ADJACENT CH, LOW LOSS

HIGH POWER DIGITAL, FULL UHF BAND RETUNEABLE COMBINER MODULE

2 Channel Adjacent Combiners with Mask for eachEach channel 2kw Digital powerSmall footprint, cabinet sized4 Ch future capacity

MEDIUM/HIGH POWER DIGITAL, UHF BAND, MASK FILTERING, ADJACENT CHANNEL

LOW to MEDIUM POWER DIGITAL, UHF BAND RACK MOUNTED COMBINER MODULE

Range of Power Levels From 50w to 240kw

Different Styles Constant Impedance Starpoint Manifold

Types of Transmission Coaxial Waveguide

Multiple Chs

UHF Combiners

6/8 section Cross coupled Steep rejectionHigh Q cavitiesLow insertion lossCritical mask

Filter – RCEC, DVB-T2 Mask

Range of Power levels

Compact size

Low insertion loss

Hybrid - RCHC

Combiner – Rack Mounted

Fits 19” Rack

Module design

Compact size

Patch Panels / Switch Frames Quick release

Rigid Line Range of sizes Elbows, Flanges

Cable Connectors

Rigid Line Components

UHF POWER SPLITTER / PATCH PANEL

Integrated Solutions

Integrated Solutions

UHF Transmitter and Combiner Integrated

Selected experience.ISDB-T in Latin America

Digital in AsiaBruneiVietnamSouth Korea

Digital in USA

Significant Project Example - Singapore

Chile & Honduras

UHF Slot Antenna for ISDB-TbElliptically Polarized (75H:25V)Broadband Operation (100+MHz BW)

Brunei

RTB

160m Tower

Full RF Systems2 Sites

DVB-T

HTV

Centre of HCMC

250m Tower

RF Systems

South Korea

Nam San, Seoul

UHF System

Digital

VTV

13 sites8 new antennas

DVB-T2

RF System

PMCM, Ch.3, New York, USA

6 BAY LAMBDA – CH 3

TOP MOUNTED CIRCULARLY POLARIZED 6 BAY LAMBDA ANTENNA AND SUPPORT

STRUCTURE

RF ENGINEERING DONE BY ADBL, UK

MANUFACTURING AND COMPLETE ASSEMBLY / TESTED IN

FULL SCALE

ANTENNA DESIGNED TO PERMIT TRANSPORTING TO SITE AND

4TIMES SQUARE BUILDING ROOF TOP IN PIECES NOT TO EXCEED

3.8M / 12.5FT.

TOTAL ANTENNA AND SUPPORT POLE WEIGHT IN EXCESS 19,000

LBS / 8600 KGS

SingaporeSignificant Project Example

Digital TV Network

SingaporeGoal to have in-building coverageCustomer MediacorpMain Transmission SiteMultiple Rooftop Repeater Sites

Singapore – Main Site

Customer, Major Singapore BroadcasterMain site Covering all of SingaporeComplete RF SystemAntennaCombinerTransmission LinePatch PanelMonitoring

Main Site - Antenna48 UHF panel arrayHorizontally Polarized100kw Power ratingDVB-T2Broadband over

all of UHF BandInstalled on a 224m

towerDual Transmission

line

Main Site - Combiner

6 Channel CombinerDual chain (2 x 6)6kw per ChannelDVB-T2Adjacent ChannelCritical MaskLow LossUp to 10 Channels

Main Site - Patch Panel & Rigid Line

High Power SwitchingDual Feed AntennaBroadband UHFMonitoringDVB-T2

Singapore – Repeater Sites

Customer, Major Singapore BroadcasterRepeater Sites Covering multiple locations

in SingaporeCustom Antenna Patterns for each siteRooftop installationsIn Building Penetration

Singapore – Repeater Site

Locations all over SingaporeInitially phase 1 for 10 sites, more required.

Found more gaps fillers required now at phase 7, total of over 100 sites & still more required

Singapore – Repeater SitesDirectional AntennasTyp. Side mounted to building Different patterns as requiredMain site provide program feed

over DVB-T2 transmissionVertically Polarized

Singapore – Repeater Sites

Installation

Scaffold

Paint

Thank you very much – any questions?

AlanDick Broadcast Ltd.

Ben Crease, ben.crease@alandickbroadcast.com