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HEM-In llullmlh H! mm In!“ nun-unpl- nu ins-sup:- N5" IO. IL 12 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER FROM THIS UNIT. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL SEE ADDITIONAL SAFETY INSTRUCTIONS BELOW. NOTE TO CATV SYSTEM INSTALLER IMPORTANT SAFEGIIARDS Readlmzrucuom-Au the safety ind opening instructions slwuldbcreadbefun this mduuisopaulect filial" lnslrueuens- The nfety and opening instructions should he remind for (“mm refuge; HeedWamings-Aummmwmzmhmmfiqmfimuwdumacaw. Fellow Inshucllons - All operating and use insuucuuns should be followed. Cleanlng - Unplug this product hm the wall mullet before chaining. Do not use liquid claws or wusol clams. Us: a damp cloth for clanin; Attachmems~Do not usemhmmts notrecammnded byBloudsrTongueas thcymayuusehmrrls. WaltmdMulsture-Donntusethiswuduclnfixwaer-furmplgnarab‘ihmb,wuhhowl.ldmheushk, or hundrymbjnawetbmmgurmxwfimingpodmdmlih. Ezra-mindikulinmwfimmualsincludul wimmmdsigndfisriudmruxmly.Dommthsepuduasmniuwm Amnes-Dompheemismmmmmblemmqublanepmdmmyfxu.uusug suiousinjwytouchilderadulgmdserlousdnmngcmihepmdun Useonlywithaumstand. Mutable Whyhlmder‘rmgue. Any mounting oflhcpmduct should followlh: Mons, and shoulduuea manningwymmmeudaibyBlnndu-Tongu 351130300 G Q BLONDER TONGUE LABORATORIES, me. One Jake Bmvm Road, Po. Box 1000 Old Bridge, NJ 08857-1000 USA Tel: (732) 5794000 Fax: (732) 579-4353 ll 14. 15. 16. 17. 18. I9. 21. lithisvidee product is equipped wrmaponnndumnwmtuupmu-prug raving onebllde widerthanthc otherLtheplugwill fitinlorhepowerwtletonly oneway. This it! safety feature. lfyou areunubletniruertdiephls fullyhrtntheendegnyreve-singtheplu;lrtheplugdrerudninrafltefiteenmyomelecnieinntorephum obsoldeoudetDonntdefleatdzesnfietypurposeoflhepohrizedplug. PowerCord Pretaeuon-qusnnépiymflwldbemledmthnttheyarenotlikelytobeunlkedenorpinehed byilernsplaeedupnnuwmmwfimMmmmnplmmvmmlmmdhm Minetheyeadtfiumthermit. Ughfl’llnfi-Fotlddedprotecdonfarthispmduudwingalighmingstoxmorwhenitinlefiummdednndtnmsedfir 1mp=iodeofthueunplugitfiumthewallunletmddiseonneet themtennnoruhlesystem.’l'hiswillprethdnmqe whmdmtaliutmingandpvwer-line—emgs FmrLinos-Anoutnideantmnasymemshwldnotbelneamdinthevieinityefoverhad povaerlinesurofltereleotric fishtmpowxcncuimerwhemitunfillinmmehpowlinsorcirmits‘Wheninstallinganoutsideanmn mmfinnldbeuhmtekeepfiomtouehingsudrpewzlinesnrdruntsaseenuetwiththmmightbefeul. OverloariIng-Denotovaludwalloufietsandettam‘enwrlsesthismrendtinarincuffireoreleen-ieshmk. Objectand Liquid Entry-Neverpush objectsofmykindinhdiisproduettln‘oufltopeningsastheymaytnuh Wavelhgepnintsnrshon-ompnmthntwrddrmutnufinuelemicshmk.Neversrn’llliquidot‘mykindon theprodiafl. Servicing -Do notammrpttoservieedrispmduetyourselfas opennigormnovingcwers may exposeyou m dnngem voltage or othethnurds, Refer all servicing to qualified saw-ire pawl. Darlings Requiring Service - Unplug this product hour the well outlet and refer servicing to qualified service pummel rmder the following condition: When the power-supplyeord or plug is damaged. Illiquid has been spilled. or objects have fallen into the product. lithe product has been exposed to rain or mter. lithe product does not operate normally by falloWing the operating instructions. Adjust only these controls that are covered by the operating instructions as In improper adjustment of other controls mly result in damage and will often require extensive work by n qualified technician to restore the product to its normal opemtion. e. Ifthepruducthas beendmppedortheahinethnsheendanupd. I'. When the product exhibits a disu‘netclunxe in perlmnance-thisindieam a need for service Replacement Parts - When replacement parts are required. be sure the service Imhnieian has used repleeernentpuns specified by B1nnder Tongue or have the nine chancuer-isticsns the original part Uneuthnrimd subsu'mn'oru my rustlt in fire, electric shock or other hazards SafetyOhodt-Upon mpletiunot‘nny servieenrrepaintn thispmduetask these-vine technician to pufomsnt'ety ducks tndeterminethatdtepmductishipropaupmfingeondition. Outdoor Antenna Grounding - Ifan outside antenna or able system is contracted to the product. be sure the autumn of cable systan is grounded so as to provide some protection mine: voltage surges and built-up static charges. Section 810 of the National Electriml Code. ANSVNl-‘PA No. 70, provide: information with rspeet to prope- gmmdius of the must and supporting smwture, grounding of the lend-in wire to m antama discharge unit, size of grounding conductnls, Ioontion of antennadischnrge unit, connection to grounding electrodes. and rqllire‘ments for the pounding electrode. 1-1er Seemteslnddiegram below. EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS 1. Drill a hole in wall (Cardul! there are wit-s in that wall!) nar set just large enough to permitenn'yot‘cahle. 2. Fund! able through lmle and form a nin drip lnq: close to whereitmtershouse 3. Put a small mtmt ofuallking around cable where it utters horse to keep out draflst 4. Install static electricity discharge unit 5. Connect autumn cable to set alnDOW “90003 0313!S OSLEI ‘S 1301 mumejaa ': “I d! 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AWEP 090 swuueua dun pun dHA ‘MVO '2Hw Mr 09 q SNOILVDL'IIDHJS zsso1 umma mdul zsnuspaduu mdu| Zilll zhuenbem Ae|aq aaunugumj -oauaugwmq3 filleflbaul ulsa ooulugumj maneugmwug :nuodna Kepq dnms zeseud panama was I‘!W°J°»!O zones mnN-orleufils ovum zonag umH SINH “1 (“PM d'd :asuodsau oaplA :|aAs1 mdu; 030m 3501 mmaawdlnonndun 11501 5) ausndmuo zhuanbmd fll :ssn'| mmag 3nd1no wouepadm; mdmo msgnN puquamg 10088 N10 mums “I :smd)no snapnds 1( 1113 IET‘SIA 19V) ZHW 094 M isz 0'9' N ZHW ES'E' N mm 3172“ N Tum mane We) ZHW 9' L' N :(a§ps puusua) ZHIN QZ' L" N imp-19s sue/x lam-mo iauonbuj muss |eJnv awn-pal Kauanbou mute I'HSM wusu muss |ensw|zmv asnlpv rem mdmo zuw ost - 099 mm 099 - 09 mm mdmo zefiueu Kouanbeu as INSTALLATION AND OPERATION NOTE TO CATV SYSTEM INSTALLER \-’ This reminder is provided to cell the CATV System Installers attention to Article 820-40 of the NEC that provides guidelines for proper grounding and. In partlcular, spedlles that the cable ground shall be conneaed to the grounding system of the building. as close to the point of cable entry as practical. UNFACKING AND HANDLING UNPACKING. Each unit is shipped with all equipment assembled. wired, foamy tested, and than packaged in an appropriate shipping container. Ensure that all accemries are removed from the container and packing material before they are discarded. This includes the lF Jumper Cable which mist be installed to make the unit operational. MECHANICAL INSPECTION Inspect the front and rear of the equipment for shipping damage. Make sure that the equipment is V clean, and no wires, cables or connectors are broken, damaged or loose. PRECAUTION Avoid Heat Buildupr Ensure Easy Access to Rack Wiring. F-ciliato Servicing and Maintenance. Avoid Direct Heating of Air Conditioning. AC Power Source Outlet; Rock support. Building Leakage. DAMAGE IN SHIPMENT Should damage be discovered after unpacking the syaem, immediately file a claim with the carrier. A full report of the damage shall be made and a copy fomarded to Blonder Tongue Laboratories, me. The company will then advise what disposition is to be made of the equipment PRECAUTIONS Adherence to the initial installation precautions outlined in the Table below will help prevent problems arising during initial installation and future maintenance of the unit. Allow (1) EM rack space (1-314') between Units in the equipment racks. Allowa mlnlmumol ill' clearance behind equlpment raolris). Allow 1 minimum of 38" clearance In front ol equipment reck(s)4 it unavoidable, use deflector plates. Locate equipment near enough to outletsto provide power tor test equipment and power tools. Mek- oertain rack support: are sulliciently rigid to support rack(s). Beware oi dripping water onto equipment from leaky roofs, waveguide roof entries. and cold water plpe condensatinns, TABLE 1 Installation Precautions P'PP‘!“ 10. 11. 12. 13. OPERATING CONTROLS , .. BLON'DER o D D e wlTONGUE we met”: eun- mmmm O D Front Panel Controls and Indicators EXTERNAL IF LED - When the External IF option is present. the LED indicates that an extemai IF signal has been selected over the internally generated IF signal as the source for the IF out VIDEO OVERMODULATION LED - Lights when the modulation exceeds 87.5% VIDEO LEVEL - Adjusts the percentage of video modulation AURAL CARRIER - Controls the amplitude of the aural carrier to change the aural/visual ratio AUDIO LEVEL - Adjusts the aural can1er modulation. When stereo option ls present, should be set fully CW AUDIO OVERMODULATION LED - Lights when the aural can'ier peak deviation is over 25 KHz in Mono mode and over 55 KHz when the Stereo option ls present and the rear panel audio select switch is set to stereo EXTERNAL REFERENCE LED - When the External Reference option is present. the LED indicates that the internal visual carrier is phase locked to the external reference input POWER LED - Indicates power is present and the fuse is good MONO/STEREO MODULAflON - Contmls the modulation of the aural carrier when the Stereo option is present BTSC STEREO LED - When the Stereo option and video input are present, the LED indicates the presence of the stereo pilot tone ~2il dB RF OUT- Test point output 20 as below the RF output CHANNEL - The channel numher on the OFM—so module is visibte through this windmv RF LEVEL - The Bridge-T pot simultaneously adjusts the amplitude of the aural and visual centers to the final drive amplifier P'PP'N 8. OPERATING CONTROLS (Cont'd.) , m t m ,, mum. .‘L‘. 43.3.5... " " ' mu ,_ .. -=_-« we ..| m- mauve-av w ' an "m ..:. nun! . mm in“ 0 “MW“ at- . , “a m "a“ H rm m cane-tun 1m noon.- cute-Ann ML: Honoured m . mu max no. mu nonun- mm- wean-sun. rue Rear Panel Controls and Connections IEC POWER RECEPTACLE WITH FUSE - The provided power cord Is plugged into this receptacle. A slide—out drawer contains the Ac (use RF OUT - The filtered RF signal is available for connection to a headend combiner IF IN - The composite lF signal is looped to the PLL I Up-oonverter IF LOOP - An Fto F jumper cable Is provlded to loop the IF OUT to the IF IN IF OUT - The combined SAW filtered and modulated IF slgnal appears at this port EXTERNAL IF IN - For use with the External IF option 7 at at REFERENCE LOCK LOOP - For use with the Reference Lock option 10. 11. 12. 13. AUDIO SELECT- Switches between the Mono and Stereo (when stereo option is present) mode of processing for the eudlo Input VIDEO IN- The modulator accepts standard negative sync video at a 0.7 to 2 5V pp level 4.5 IN - Extemnl 4.5 MHz modulated earner input AUDIO INPUT sWITCH - Selects between an external 4.5 MHz modulated aural carrier and the lntemally processed aural carrier AUDIO INPUTS/IF CONTROL- Input connector for the Mono / stereo audio signal and the Exlemal IF option control logic In» em PREPARATION FOR USE After installing the unit make the following adjustments: Output Level - Connect the IF Loop cable from the IF OUTto the [F IN connectors. Connect a suitable RF meter (Held Strength Meier or Spectrum Analyzer) to the RF OUT and tune to the visual carrier frequency. Adjust the RF LEVEL control to the desired visual carrier level. Aural I Visual Carrier Ratio - Tune the level meter to the aural can-ier frequency. then adjust the AURAL LEVEL control for the desired carrier ratio. Video Level - lMth a nominal 1v pp video source connected, set the VIDEO MODULATION ADJ so that the VIDEO OVERMODULATION indicator just comes on. Verify with suitable test equipment or by using a TV. and checking pidure contrast. Audio Level - For monaural audio signals. connect the signal to the MONO I RIGHT terminals of the a—pin terminal strip. Set the AUDIO INPUT switch to the UP position and the AUDIO SEL switch to the MONO position. Adjust the AUDIO MODULATION ADJ so that the AUDIO OVERMODULATION indicator flashes on the Ioudefl peaks of the audio program. Monitor for a few minutes to assure the proper setting. STEREO COMPATBILITY OF THE CAMS-60h MODULATOR The CAMS-sub is designed to accept either a standard monaural audio signal, a aTsc encoded baseband audio signal or a 4.5 MHz modulated subcarrier. It can also generate a BTSC encoded stereo signal when Option 5 Is installed. If a BTSC encoded haseband signal is used, the internal audio pre-emphasis circuit must be disabled. To do this. disconnect the unit from power and remove the unit cover. Locate the AN modulator board (the board with the audio and video controls accessible through the front panel). Next, locate TH1 (behind Audio Level Adj pot) and put the shorting plug In the DISABLE position (Pins 2 and 3). This disables the audio pro-emphasis. Replace the unit cover. Connect the baseband stereo signal to the MONO I RIGHT terminals. Set the AUDIO INPUT switch to the UP position and the AUDIO SEL snitch to STEREO. In the STEREO position the AUDIO OVERMODULATON indicator is set to come on when deviations exceed s55 KHz (stereo peak deviation). Adjust the AUDIO MODULATION ADJ so the Indicator just comes on. Monitor for a few minutes to assure proper setting. If a 4.5 MHz modulated subcarrier is to be used, set the AUDIO INPUT switch to the 4.5 N position. Neither the AUDIO MODULATION ADJ nor the AUDIO OVERMODULATION indicator are operational in this mode and no internal modifications to the modulator are required. CHANGING TEE OUTPUT FILTER MODULE Unplug the modulator Remove the unit cover Remove the PLL module cover (located next to the RF Output). Remove the two faceplate screws securing the Output Filter Module (OFM) to the faceplate Note the connections of the two coax ables to the OFM before removing them ' Remove the screw that secures the OFM L-mounting bracket to the chassis Remove the OFM Note the Channel Chart on the new OFM Set the two sets of DIP switdies, visible through the top of the PLL module, to the channel of the new OFM 10. Insert the new module, channel label up. and connect the two coax cables, OFM mounting hardware. PLL module cover and unit cover 11. Before reinstalling the unit in a rack, verify its operation by conceding the RF Out to an appropriate piece of test equipment. Use caution when connecting the modulator to test equipment because the output level may exceed 460 dBmV PPT‘PFPP’N.‘ _____________.________—_____—7, CAMS-60h with STEREO OPTION Description: The CAMS-6m) with the Stereo option (option 5) will convert the lett and right channels from an audio source to the ' “to encoded stereo format used In television transmission. It can also be used for the transmission of standard Mnaural audio signals avnflable from non-stereo sources. Input Requirements Audio Levels Stereo: 0.7 Vpp to 7 Vpp. typ (-1o dEm to 010 dBm) Mono: 1 Vpp to 7 Vpp, typ Video Level: 1 Vpp, typ Connections: Connect and make all adjustments for the video, IF loop thru and RF Out as described under Preparation For Use. The audio input signal may be balanced or unbalanced. it an unbalanced input is used, the unused terminal must be grounded via a short jumperto an adjacent ground terminal. Stereo Input connections are made to the corresponding left and right terminals as indicated on the rear panel. A monaural input signal is connected to the right channel Input with the left channel remaining either open or grounded. Adjustments: For stereo operation. the AUDIO SEL switch on the rear panel is set to the STEREO position and the AUDIO MODULATION ADJ is set fully CW. When the stereo option is present. the Audio modulation is controlled by the MONO/STEREO MODULATION ADJ. Intematly, the programmable 75 usec audio pro-emphasis must be set to the “Enable' position. This is the fedory installed setting. It the shorting plug has been moved, it should be repositioned to connect pins 1 and 2 of TH1 on the AN board. The AUDIO OVERMODULATION indicator is configured to work in both the stereo and mono modes. When the AUDIO SEL switch is set to MONO. the LED will light when the deviation exceeds 225 KHz. In the STEREO position the LED will I" h' when the deviation exceeds s55 KHz (150 KHz program audio and 15 KHz pilot tone). Adjust the MONO/STEREO .\_ JULATION ADJ so that the over-mod Indicator flashes. Monitor tor a few minutes to assure the proper setting. For the BTSC STEREO indicator to light there must be an Input video signal and the AUDIO SEL switch must be set to STEREO. Specifications Separation 50Hz-10 KHz 20 dB,Iyp Frequency Response 50Hz-10KHZ: £1.5¢B,Cyp Harmonic Distortion Q1 KHZ 0.5 56. typ FREQUENCY OFFSETS The table on pages 10. 11 & 12 lists the switch settings for the aandard cable TV and broadcast TV channel assignments. 0=UP=OFF (as labeled on the switch). The L0 frequency is the sum weighting or the switches in the UP position. The weighting of the specific switches are provided belovc Switch Bank 1 Switch Bank 2 Switchtt Weight Switchd Weight switchil Weight Switchii Weight 1 0.8 MHz 6 25.6 MHz 1 VCO BandSwitch 5 50 KHZ 2 1.6 MHz 7 51.2 MHz 2 VCO BandSwiich 6 100 KHz 3 3.2 MHz 8 102.4 MHz 3 12.5 KHz 7 200 KHz 4 6.4 MHz 9 204.8 MHz 4 25.0 KHz B 400 KHz 5 12.8 MHz 10 409.6 MHz To obtain a +12.5 KHz offset. move Switch Bank 2; Switch# 3 UP. It the switch is already in the UP position. move Switch Bank 2, Switch# 4 UP and move Switch Bank 2, Switch# 3 DOWN. (This add 25 KHz and subtracts 12.5 KHz.) _,,o...um —1-u~=nown 1234557591!) 2345678 1_-uu=nown 1—=0N=DOWN GNNL 1234557591!) 12345575 SWITCH TWO 1- ON = DOWN CHNL 12345578 H0 VIDEO L0 APPLICATION FOR FCC CERTIFICATION ‘BZSMXIOV MODULATOR INPUT 10 WATT VHF TRANSLATOR IIJEMOIINLATORI WAVEFORM MON7ITOR EXH‘ElT 38 VIDEO SET-UP #1 DIRECTIONAL LOAD POWER TRANSLATOR METER C°U§LER 4 1 NOTE 1 10 SPECTRUM VECTO§SCOPE ANALYZER NOTES AND EQUIPMENT LIST 1. Video Generator — TEKTRONIX 1910 - Serial Number 3010219 2. Power Meter - BIRD MODEL 43 — Serial Number 216291 3. Directional Coupler - CONNECTICUT MICROWAVE #250006 A. Load — DIELECTRIC 5750 - Serial Number 23510 5. Spectrum Analyzer — HEWLETT PACKARD 859115 - Serial Number 3325A01739 6. Demodulator - TEKTRONIX 1450—1 — Serial Number 3020559 7. Waveform Monitor - TEKTRONIX ,17SOR — Serial Number 15022663 8. Vectroscope — TEKTRONIX 178011 — Serial Number 13022663 9. Group Delay Set — TEKTRONIX VM700A - Serial Number 30100433 10. Dipole Antenna Cut to Frequency (For Field Strength Measurement Only) APPLICATION FOR FCC CERTIFICATION EZSHXIOV MODULATOR INPUT 10 WATT VHF TRANSLATOR B(HIB|T 3b VlDEO SET-UP # Z “an" m Meme ADAPTER MODULATOR TRANSLATOR METER 3 LOAD OSCXLLgsc-‘OPE DETEérroR SIGNAL GENERATOR SPECTRUM ANALYZER NOTES AND EQUIPMENT LIST 1. NTSC Sideband Adapter — TEKTRONIX 1405 — Serial Number 13040665 2. Power Meter - BIRD MODEL A3 — Serial Number 216291 3. Directional Coupler - CONNECTICUT MICROWAVE #250006 4. Load — DIELECTRIC 5750 - Serial Number 2354 5. Spectrum Analyzer — HEWLETT PACKARD 859112 — Serial Number 33251101739 6. Larcan-TTC Active Detector — Serial Number 002 7. Oscilloscope — T'EKTRONIX 2465 — Serial Number 3025622 8. Signal Generator - HEWLETT PACKARD 651A — Serial Number 434—004“ APPLICATION FOR FCC CERTIFICATION BZSMX1 OV MODULATOR INPUT 10 WATT VHF TRANSLATOR EXHIBIT 4a FREQUENCY DRIFT VS. TEMPERATURE CAMS-GOD MODULATOR MEASURED DEGREES C LO FREQUENCY(HZ) DEVIATION(Hz) +50 181,250,647 379 +40 181,250,449 181 +30 1 81 I250,205 -63 +25 1 81 250.268 0 +20 181,250,408 140 +10 181,250,600 332 0 181,250,673 405 -10 181,250,605 337 -20 1 61 250,225 40 -30 1 81 249,700 668 PAGE 1 DEVIATION(%) 0.000209 0.000100 0.000035 00000 01000077 0.000183 04000223 0000186 -0.000022 41000813 APPLICATION FOR FCC CERTIFICATION BZSMXIOV MODULATOR INPUT 10 WATT VHF TRANSLATOR EXHIBIT 4b VARIAC POWER SUPPLY FREQUENCY COUNTER " """""""""""""""""" fifiéfiafiflifié 3 CHAMBER ‘ MODULATOR NOTES AND EQUIPMENT LIST 1. POWER SUPPLY ~ HP8012A - SERIAL NUMBER 2329A-021B1 2. FREQUENCY COUNTER - HP53345 - SERIAL NUMBER 2937A05503 34 THERMOMETER » FLUKE 77IBOT-150U 4. THERMOSTATICALLY CONTROLED TEMPERATURE CHAMBER, ASSOCTATED THERMOMETER ll __1 APPLICATION FOR FCC CERTIFICATION BZ5MX10V MODULATOR INPUT 10 WATT VHF TRANSLATOR EXHIBIT 5 AURAL SET-UP DIREC'flONAL POWER MODULATOR TRANSLATOR METER COLT-ER 4 z E E I I E E AUDIO = TEST SET <__“___ DEMODGULATOR w“ MODULATION ANALYZER NOTES AND EQUIPMENT IJST 1. AUDIO TEST SET » HP339A - SERIAL NUMBER 1730A00691 2. POWER METER - BIRD MODEL 43 - SERIAL NUMBER 216291 34 DIRECTIONAL COUPLER » CONNECTICUT MICROWAVE - PART NUMBER 250006 4. LOAD - DIELECTRIC 5750 - SERIAL NUMBER 2354 5. MODULATTON ANALYZER - HP8901A ~ SERIAL NUMBER 2911A05212 6. DEMODULATOR - TEKTRONIX 1450-1 - SERIAL NUMBER 9020559 EXHIBIT Za PUBLICATION TSM 20-302 TECHNICAL MANUAL 10 WATT VHF AMPLIFIER FOR MX10V SERlES TV TRANSMITTER/TRANSLATOR LARCAN INC. 228 AMBASSADOR DRIVE MISSIsSAUGA. ONT ARIO CANADA LET LIZ PHONE: (905) 564-9222 FAX: (905) 5644244 Run: November 28, 1998 MX1W suits - 10 Walt VHF AMPLIFIER Sedan 1185 NOTICES, ETC ..................................... SAFETYAND HEALTH WARNINQ . . . GENERAL SERVICE INFORMATION 1)PansListsEmIainsd ................................. 2) Inupm'ng LARCAN Drawing Numbers ............ 3)WLARCANAssenMyPrefixNunbefingSysIem.... 4) Ust ufPrefix Numbers far ma 1!) W Tmnsmiuer . . 5)me ......................... INTRODUCTION ............................................. GENERAL DESCRIPTION ..................................... SPECIFICATIONS ............................................ ABOUT THIS ‘MANUAL .......................... PUBLICATIONS LISTlor MXWV “fies VHF Amplifier: PUBQB-ZS InsVaIafiOn: 1. Genera mutation ............................ z Gmuufing and Gromd Loops ....... 3, Ugmnhg and war Transient Function . ....... 4A Pwervwmg .................... 5. Vermaflon and A'r Condlfioning . A 6. Fire Protection ......... 7. 8A 9. mmMm Nm-mberzs.1sss 1 10 10WVHFAmpIfllr MX10V sedec - 10 was VHF AMPLIHER Section Tm Pam PUBSB-31 RF Oulput System: filter and Directional Coupler (Prams 6 a. 7): 1. HB Hemzl Resumer Bandpass finer Description . . HB LowPuwerBandpassFm-‘Desaipfion . . . ...... 31 -1 . 314! 2 . 3. LB Law Pass & Noich Filer Description . . . . 31-4 4 RF onetime! Coupler Description ................... . 31—5 PUBQGGZ RF PowerAmpiflef (Prefix 2): 1. moduahn and Gamma! Description ........................... 32-1 2 Preamplifier Circuit Board Assembly . . 3. RF Power Ammmef .............. magma Amner Comm! Board & Meteflng Panel (Pmfix 4): 1. Comm Board 3. Metering Pane! Dwipfion z Amplifier Comm! Circuit Board Description . . PUEQS-M Tmmmifim' Output RF Metering DeEdDr Board (Prefix 5L 1. RF Metering 3. A50 Beam Damptbn ......................... 34-1 2. RF Metering Board Test and Calhrafion ........................ 34—2 PUBQG-Ma Pin Anemmor Board (Prefix 9): 1. Pin Amnuainr Board Description ............................. 343-1 2. Pln Attanuumr Bead Setup ............................ .3da- 1 PUB9835 Basichnsmlmr MEMOS: Gmsml .......................................... 35-1 Transmitter Gaming System ........... static 1. Equpmem 0: A WsmflcTumrial .. F5 and Surface Mount Rsplamment .......................... 354 Replacement Parts & Spare Pans Remmndafions ............. 357 T’SMMMO: Numb-tn. 1993 Z 113wa Amplifier MX1W series - 10 Watt VHFAMPLIFIER NOTICES, ETC; THIS EQUIPMENT USES STA'I‘ICaEENSITIVE CHOS INTEGRATED GRCUIT$ Observe pmper handllng precautions (Indicated In Maintenance Sedans) n all limes when working with his equipment TOXIC MATERIALS NOTICL "PORT/INT... Efl'sm've thermal managemlm in certain semicondudor devices in Ihis equiprmnl is possible only through the use of Beryllium Oxide ceramic materials. This equipment WM devices made wilh Beryllu'n Mae! BeulflummdlucompoundsmaPOlSONflukenmmbodym-nym To reduce your risk, "member: In use of accidental breakage «I my kind of semiconductor device, DO NOT INHALE THE DUST, and AVOID GETTING DUSTIN YOUR MOUTH; it could cumin Beryllium. DO NOT LET BERYUJUM DUST INTO YOUR BLOOD STREAM THROUGH CUTS OR OPEN WOUNDS II smmmmsnursmifluimnflon Ifmemmmbodymanymmner. Avold an: by wearing gloves while pickh'ig up In! pleat. Wash your hands thoroughly m! repladng devices. Dispos- mmm only through approved lozicwastedbpoul unifies. Remember too, after cleaning up an accidental breakage, avoid [MlIlll‘Ig the dust while replacing or emptying vacuum cleaner filter bags. and wash your hands well liter send-ring the vacuum cleaner. All material in this manual is eopyrighlc LARCAN INC. and reproduaion inwhoie orin panln anyfmrn forany pm‘possofl'ierlhanemsivemafmsequipmem owner. Mpnorwrlllen aumarizefionfrom LARCAN INC. Ispmhblted. deanamsaremepmpenydmeirmspedwemmandmmmdmmemfwdmwn purposes: mysfinufionismtmeesserflymendcrsememdme manarkorisawner‘ Partslislsmyalso contain redemeflwdvendormmesasmeidhpmanmamolspa'epm We magnebrwinedvemntanission duademmadqmnedgemertanymanissimwasoomplmiyaeddemel Although mafollcmhg pagescenlaln asmudl inlormafionabommeflS—IOB Irensmiflerorlhe TRS1OB nanshmrmoyarebommesmexeeptformeir emilersNSItis reasonably possibleln prwide, nevenheiess wenmstslalemtmoeehsuufibnsdonotpwporttoocveraldetalsorvarialionshequlpnmflnorlopmvide foreverypossibleoonfingencylcbemelinconnewonwithilsinslallaflonmperaliomormaimmance. Ilis assumedmalMympetemledepemnndvdlbemspombhhrmmnenemeandmpdrofme equipmenlihalisdesubedinm‘nsmenuel. Shouldmmeriformafionbedesimdmrshouldpenimhrpmbloms arise whim are not covered aufidenfly herein lorthe purchaser's purposes. or should replacement pans be required,1hemallershouldberefe|'redmus. LARCAN INC. 223 Ambassador Drive. Mississauga. Ontario, Canada L5TzJ2. Telephone (905)5s4-9222, FAX (965)564—9244. TSMMMO‘. Navemberi'SJWB 3 ‘IOWW‘IFanifief MXWV series - 10 Watt VHF AMPLIFIER TRANSMITTER SAFETY PRECAUTIONS: AC VDLTAGES USED FOR THE OPERAflON OF THIS EQUIPMQJTAREDANGEROUS TD HUMAN LIFE! This immwonmnudMsbeenmmenmeemflgiwanmmMnMopaafion.miuename and service personnel who are aware oil and are familiar with, the hazards of working with high powered electronic oirouitsl This manual does not purport to detail all of the safety precautions which should be observed when servicing this or any other electronic equipment SeMotng by inadequately trained or irreaqoerienoed personnel may expose sueh personnel to serious risks which oodd result in personal iniu'y or death. and/or damage to this equipment. All personnel oonoemed with the sen/icing of this equipment should be thoroughly famiier with standardtts'tald prooeduresforthe hementotetectrlwt bumssnd shock. The equipment has been designed to protect operating personnel from accidental corner: with voltages dangerous to human lie, either by means of finance (Mtere “n is necessary to deliberately reach to metre oontactwlth Ivetenninala)orwtth shielding. Itlsthereforeofprime imporaneethetanyproterfiveoovenng devioeebekeptinplaoeatalltines. While all praofiml safety precautions have been adopted to safeguard personnel from possible injury, in times ofoft-airemergenoythereis often astrongmdencytn ectwitnoutdue regardtornormaloeuficn; forlhis reason. both supervisory and operating personnel are urged to ENSURE THAT THE SAFETY RULES DETAILED BELOW ARE FOLLOWED AS AN ESTABLISHED ROUTINE at all flmes 1. IGLLMEACPOWERBEFOREITMLSVOU Under no cirwmstance should any perscm ream mm the whit-lets for the purpose of servicing or adjusting the equipment without first disconnedhg the AC power, or mm the immediate presence of emitter person capable otrenden‘ng aid. Use otthe buddy syaem is enoouragedtortransrnitterwonr. 2. DONOTTAMPERMTHINTERLOCKSORS‘FETYSHIELDS Undernonnatooumstarteeememyshieldstnudberernnved l REMOVEPERSONALJEWELRYWHEVWOWGMTHEEW The 43 volt power supply in this transmitter, although overload protected, is able to deliver wants capable of heating rnetalllctoots orpersonaiiewelry suehesawatoh band. bracelet, orring. Accidental shortoircuitsl'rom sudtmefllcobiecgeenmehemhtfiflsdfldemflbmmnhsenwspereonaliiuy. 4. KNOWFIRSTAID.ANDKEPHRSTNDSUPPLBAVNLABLE mmtedtlsteidhswcfionetortheu—eamtemotdeotrwmodtm bums should be dsplayed ina prominent Ioiation adjacent to the equ'pment in rendering fist aid. the timeliness and attentiveness ot the treatment are vitally important to the recovery ot the Iniued person. Without exception, all personnel should thoroughly familiarize themselves with the procedures involved One person. whose regula' duties place him or her at the transmitter site atten, should be delegated and given the complete responsibility and armority to ensure that list aid supplies are kept on site and maintained fresh and up to date. Prominentty display a list at emergency telephone numbers. This list should include the telephone numbers of the nearest ambulance, hospital. doctor, and tire departmem palemedics; and the public works (highways or county roads) department in use the former persons need eoeess to the site during indement weather. TSM20-302revt7. Novemberzs, 1999 4 10WVHF Amplifier MX10V “rm - 10 Walt VHF AMPLIFIER HEALTH WARNINGS: 1. Non-metallic coverings oi some coaxial cables used in this equipment are FLAMMABLE and may transmit fire when ignited. Other wire coverings are not capable of suppcrfi'ig combustion. but any non-metallic covering when heated sufficiently may emit dense smoke and acid gases which an be highly TOXIC aid often CORROSNE. 2. Be careful when replacing RF power transistors. Thermal transler properties in these devices are achievable cniyhyiheuseoiaeryllium Oldde ceramics. We stated iteariierbutwewiii emphatically repeatitegain and again. Beryllium OxidekaTDMCtubsuncc. il'theceramicoremer encapsulation is opened. crushed. broken or abraded. the Beryiiium Oxide dust an be hazardous if tnkenintothebcdyhanymanner, Useeaufioninreptau'nglimdevices. a Solvents such as alcohols. ketanes. aliphatic or aromatic hydrocarbons, halogenated hydrocarbons. etc. as found in glues, paints, paint thinners. paint removers. aridlcr deani’ig fluids, may emR TOXIC VAPOURS and some may be FLAMMABLE Reed and undersflnd the drections on their miners. and ensurethalthey are used onlyinwellvenfiletedlccetions. GENERAL SERVICE lNFORMATiON 1. Peru rm Layout - EXPLAINED Parts lies for manuals are cannula-generated out of the LARCAN materials management database. They are presented in hierarchiai orfemliytreemierexferaa is possible. The computer is input with the parent parts list number. in his case the empliiier rncdel~4ODz168 which it designates as level 0. The computer first checks the parent II: for major suressemblies, then each Mimbrnmsmbfiefl.m.endemngesmosefietsinerderofhelmmy beqinningwitl’rievel O,then1,menz,ete.thenpnntseadiinmecrderlnwrfid1theyweremn¢ inmesebocldetswhichbgeiher describeit'lePARTSoHt-ieempilliermr! have usedlhecomputers electronicdataoutpuitoallawrstomcre easflyinegrmmreie‘valflpeflsiistwflhlheten. Ti‘eiitecflextirmediatetyabovelheharizcntalheonihefirstpageoi‘eediiisiprovicesmenumberendname of the relevantassembiywhicl’itheiifirepmsents. An'R'fcmedbyadasi‘landenumberindlcetes revisionstatus Thistrflonnefionlsmarvngfulmcw RmeweiPansendIu'Cusu-inerswicepeopie.andmardefthaithesepeopismnbermstnelpmtmeyshnuld beadeedotmisrevisicnnmnberespedalyH‘renewalpensareneeded. 2. Interpreting LARCAN Drawing Numbers Engineering drawings at LARCAN are based on the concept that an assembly or subassembly is simply a GROUP of component parts. thusvmen a G appears on 8 lat. ltmeens an "assembly". Thus a ci'mit board loaded with parts may be referenced in this manual as 100105561“, while the drawing that shows how this assembly is ”together wui be “3061055F1”. Here. the P means PART. not PAGE (drawings in the LARCAN engineering department appear in ‘sheets" to avoid confusion bemoan Parts and Pages), and sometimes several similar, but cfrfierent "pars" may be shown on the same drawing in order to save space. The cirwil board drawing cited above is an example. TSMWMOZ Navembet26,1998 5 tquHFanlilIsf ux1ov series - 10 Watt VHF mpunen GENERAL same: Newman 1 lnhrprfiinn LARcAN Drawing Nun-bus (continued). Therearetwomodelsofthispaillcjardrmitboardmichhappensmbefl'ieoumutRFdrwitboerdoflhelow bend(Bendl)powera'npiller. meannellreqrencymngedetenfineemmwrfialargmupofmgsembly it needed. NTSC channelszmnoughhequreagmup 1.whie dismissandsrequire the group2board assembly. Theseboand assemblies differln nfinorways. butcanoeshownasaslngle illustrationwilhthemo ‘parts'defitedbyamteconveylngessenfiaflyfltemanhgof'Pantasslm Paaniacecopperstrap pmpersforcfnmelssanda' Other assemblies. such as in recent models of beads used for group delay correction In the exciter. may be shown as a number of separate assemblies (Parts 1, 2. 3, 4, or 5)‘ on several sheets of a single drawing. The drawing "parts" all areassembledthesameway, mtvary in quanlilyand type ofecmponents. For vendor components such as resistors and capacitors often a generic drawing describing basic specifications. but having many "parts“. will be used. As an example. Drawing 3R152 Resistor. composition. 7: watt. Drawing 3R152 describes a V. W resistor, but the drawing PART numbercalle forms value and toleranceo'me resistarwanled. Theflrsttwo cfigits aflerlhe "P' are the first two significant figures 01 me resistance, the third digit is the number of renewing zeroes in the resistance value. and a J is 5% tolerance. or K is 1096 tolerance. Some example pen numbers are: 47 Q. t10%. ‘/aW. ls ‘3R152P470K‘; and “3R152P243J‘ specifies 24 kfl, t5%. '/4W. For resistanm values between 1 Q and 10 Q, a letter "R" will appear in the pan number to incl-ate the decimal place: for instance a 5.6 at 556. %W resistnrwill be designated as ”3R152P5R6J". Often the letter "R‘ appears on smematics or in pans listswhere ltspecil'les lhe decimal placewhen referring toresistances,sumas'51R"or'75R'or'5R6‘.end sometlmesiheletter'k'vdllappearin thesamecontext, suchasfila“. Thlspractioeisdeplcreduryold—tirrws in ourmldstmc anendedNWAmcncen tech schools and membmleamedabommmponemvemamamspedudmmmwecfdedmalmtaflon.but schemaficsdramfiswayuecommnhcflterpaflsofmewond. hamlwtmeover.aanolowedby adashandanumber'mlmtesarevlslon,bi.nyoumlbeabletomcogmzettudmrencefiommelayom framewonroflheist 3. The LARCAN Assemhly Prefix Nunberlng System _ Because a transmitterisa complex device. a referendng system formlqua identlmuonofcomponem pans MNMMMMMMMMMMMWsMMMhemmm Eetmmimmefirstcepadorisdeslgnatedm andmefirstresistoi'ialilrewisedasignatcde,hutmenseveml assemblies using capadtorsorresistors appeaflogelher. mamtir'Bquesflon ihenbecomes “which C1 orR1 arewetalldngaboul’?‘ The LARCAN prefixing system, and its "mtdowmented feamres" represent a beginning and evolving solution in some or these problems. It begins by assigning a disfina assembly prefix numberto each subassambty. Prefix 2 (“amplifier-itself) hastwo unique subasserribfieswmdlemmrmarpreflxed 2A1ano2A2. both at which could haveac1. en R1. etc, Identification preach oorrponentinmll, is done by simply adding theprefix numberto the cornponem designator. thus 2!“ C1 . 2A2L3. em Prefix designation is gram (or written comrrmimtlons such as letter or PM butt-mm talking about it during a phonaconversailon, it isprobablymomnaturalto simplysay"C1 in the preamp board‘or"R7in the output amplifier“ than in go through the rwfine of looking up the prefix numberi TSMMVEVO: Novemfir 1998 G 1chHFAmplfl|ar MX10V led“ - 10 W111 VHF AMPLIFIER GENERALSERWCEINFORMATION 4. unamcmbly ma 1 - amigcooling FanandTu-minfll Blocks 2 - RF vaeanpfifief'fi Heatslnk Assemuy 2M RFPmampfifier 2A2 RFAmplmer 3- PWSupply(+48Vdc) 4- CommandAGCCMBoflrd 5 - RF mama MemerlngCiu-fil Board e- RF Output Bandpass FM 7- RFOlmleredienal mist 8- camdpoaarsmplymzva) 9- Pinmsmator 5. Pmdudhflclung‘s Fromfimemfime,ilmaybeeomenecessarymmasbemadeinmeequipnmfidesuibedinttfismanual. Such changes ans usuany made either to provide impmvad peflmmanea, or to accommodate eompomnt subsfimflonsnecsssimdbyvendor profit-lot availability. Anevision letter or number may followmemcdd or mmmbermfledonhmmp‘a‘b.chassis.«MMMmmepansfisuwhemflisan'R'follawed byadashsndamnm. wnemveramvisbnleflzrormnmerqypmmsmuldbequobdmany conespondmeeormmmieefimwaflfingmsquwent ' TSMMrevm Newman. 1998 7 1DWVHFAanfinr MX1W series - 10 Watt VHF AMPLIFIER GENERAL DESCRIPTION INTRODUCTION This mama describes the LARCAN 10 watt VHF amplifier designed for NTSC channels 2 Waugh 13. Models 4002168613 forchannels 7 though 13. 400216862 for manuals 2, 3, and 4. and model 400215863 is for channels 5 and e These amplifiers are used in the LARCAN-Tl'c uxmv series transmitters and translators. LARCAN ail—sottd-state 10 W VHF amplifierm designed to operate conservatively at 10 W peak syncv‘nuet RF powerand1Waverege aural singtecen'lerRFpuwer. withsuperbpert'pnnance. reliability andoperating economy. This amplifier accepts an on-dtemel Intemally «fiplexed (In a 1&1 mic via to our) composite driv'ng signal ofabouHmeeakvisual RFJs'nputtnltsRthain. The 10 W amplifier and channel processor chassls' are designed to fit in a single 19“ customer-provided cabinet radt, and require 7" (4RU) of vertical panel space for a complete transmitter or translator system. Altematively. a 19" customerprwided tabletop cabinet could be sibsfihfied itthe site requies it. The RF amplifier heatslnk has its own integral cooling fan. and other eubessemblies are convection cooled. flies’nplkfltyotdestgnfliedeplcymotali modulerand ctt'iersubassembliee. endtheuseaf standardreediiy mflable mmm, also enhances serviceabriity. Peek toward and reflected power are displayed on an analog percent power meter lowed on the front panel of the unit. AMPLIFIER CHAIN The internally diptexed composite RF output of the channel processor is led to a conservatively designed broadbandsolid-stateemplifier. Thisemplifierrequiresnomnhgoradjustment. Simplicityotoperation. reduced rmintenancecostsandkueesedrefiabifityareafewofmemaiorbenefitsdenvedfipmmisempifier. The amplifier chain consists of two stages at amplification for low band and thee stages for high band. Foranplillers having somewhat more gain than usual. and espec‘dlytor 10 watt output applications. the another driving the preamplifier may be padded down with an inline attenuator to avoid overdrive lo the preamplfller. bemseexo'oersgeneialtypenonn bemerathlgheroutmtlevels The preamplifier uses iigh gain, broadband, integrated cirwit amplifiers) operating dass A. This preamplifier has two stages in high band models, while a single stage suifioes for low band The preampifierusesthesamecircuitboardMisaniMegralpenofthe‘phesequadiamrocontmr'matisa iewiedpenotperalleledemplifierconfigwefions. mtowuansduerusesefingbRFchatn. consequently quadiahnphasingisnotneedednorusedbutsomelowcostcemponentstorltmayremaininpleceonlt'ie board. Remaientaistargreateroverefiemenselhansknplyleevingthanin place. The FA stage consists ofa palrofpush—pull FETs in a single use, operafing in dassABasa linear amplifier. Thisampllfier‘eepasteot'more than sowattsRFoutputwhendriven bythepreamplifierhthepresem system. butusestheidentiealduaiFETdeviceMisusedinhighcrpowered LARCANhansmthers. The Sound/Aurel signal ofthe transmitter is internally diplexed and corrected at lF with the visuaINisicn signal within the exciter, and is amplified in common with the visual/vision signal in the amplifier chain. Internal diplexhg otters the distinct advantage of lower cost The amplifier W is fed mph the bandpass filter and the directional coupler, which provides a small sample of forward and reflected output powerfor AGO and VSWR supervisory funqiohs. The transmitter output then passes to the antenna system. TS“ mum-eve; NoveerGJBDS 8 IUWVHFAHINIfief HM uxlov mm - 10 Want VHF AMPLIFIER ' GENERAL DESCRIPTION TRANSMITTER CONTROL V The control cirwitry in lhis solid slzlelransmiflefls simplc. lnlerloddng inme 10 Wsimplycnnsidsul'jwnpers (marked EXT1 and EXTZ) but (menial pelnh panel link swilnfles. or RF switching andliary col-mus. can be connects! if desired. This lm: pomr level gemlly needs no intoxicating. lnme10W.MmmMissOsimplefiustasinglemnfl’lateimfmmdfl oriuanbeusut The coolingfanforlhePAl-muirklswireda mepomprplymmmemmwmopememefme wpplyisawglzfld. AmmispmvidedhmPAheaBlnkwopmmmflodldfihmldmuM mmaflnqwfilfimoewn On site it is necessary in ensure mat AC trains voltage within t10% cl nnminal is available, apedflfly in sites weramvouageunoflenbeemBmelyvarlabls.arid/orhiwesnrewmmon. ltisagoodideatoiogall voltagoexwrwnslnmmwerapefiodoflimejndmeflspedlyawimblevollagemgdm. The amplifiers 48Vdc l'near power apply (power-one“ type HDda-G-A) is rated for 3A and is designed for operalinn from AC panama vollage valiafion ef¢10%.-13%. The amplifier was less man 240 VA fliecomrol's lzvmmmwpplylsmwdfurOSAandispmeduponapplicefiondACiflnlheuniL TSMMr-vo: moans. 1996 9 10WVHF Muffler MX1W “do: - 10 Witt VHF AMPLIHER GENERAL DESCRIPTION ELECTRICAL AND MECHANICAL SPECIFICA‘HONS VlSUAL-DOCIFOC (NTSC‘) .. 10Wpuk mum-umva mmummmvnumm .. .. son , typaN ........ 500 “(w-wanna") ......... zstzmwame) Wmume/ Rm.- -0.75 MHz to 44.75 MHz (Rlilflvl w Vhlfll Clrrhr , “1514.0 GE Himmic Mason: . . . . ' 40 as ENVIRONMENTAL mTanpemn: a-mus-c . (mum . 7500". COOUNG mtmmmmmmmmmmmmmw mr-otmbhumk'sfim Warhmmmmdrwmmlwmmm mmdfienpflfiuzrewmwflmmled. wmeMmsr-mwmm Nnflifierduflhhirlndwmafmmmm winemeumnswaux MMXWVuriuampfifier imMmewmmmmmmmm=MMmmhrt SHIPPING WEIGHT appmxmlbo. TSMZOJOQMO:Nwemher28.1m 10 10WVHFAmp|ifief MX1DV “He! - 10 Watt VHF AMFUFlER GENERAL DESCRlPTION ABOUT THIS MANUAL ltwillbeobservedihetlt'ismanual mnsistsnleeottectienefseparetepublieafions, eadt omofwhiehdescribes is om module Ursadiofl of the equlpment. Parts lies, appllwbte alignment instructions, and Illustrations whim generally consist or assembly diagrams and schematic, are Inducted in eedi of these booklets, which are identified by e l“PUB" number and revision. These ntinl-pmt‘reetions represent our attempt to assure quality of our dowmentation and at the same time mammmmrhlasumntaspossble. lnmeuwellergenmnrflorhmdbooked'tenqemedetoasingle mmigmrequireasentenoe oreven several paragraphsbeeddedmimtherewltthetellteiatptlnwinqme diangewili shilL consequently requiring renumbering of all pages and subsequent reprinting. These operations mammaesi'abledelaybemeenmereleaseoflherevisiontotheeqrjpmemandtherusweofltsmamel. despite our extensive use at cnmptnere It Is our hope that this repmliwtirm delay will be reduced because revisionsareheertyalwaysdoneononemeduleatetimejnoatewpegeswfinenttounemoduteere obviouslysimplerto revise and reprintthenthe menypeges ofahandboolr. Each sectim ormoduleafthe equipment is described in it own booklet. For each booklet. thetomtet generally consists at a block diagram where applicable, then the relevant Mentions. then the circuits are described. then Migrment procedures are defined. and then the parts tist is presented. Finally. the Figures (Illustration drewingsln11"x17" size) comptetethebooklet. The Parts Lists in all booklets have been compiled by. and then extrema from, the LARCAN materials managernertteumputersystem,and arewnentasot‘thedeteolisweofthebooldet. We have attempted to present our drum descriptions in sudi a way that they would be meerfirgful to the competent teetflctan whose main objective is to look after the equipment We have therefore minimized the nudiofthe information from such soupes.a|thot.rgh meenirtgtultethe EE. mnbetooheavyend overdone for mebeleegmmdtedmidenvmoisoespemdyhymgtopmemnmtbedtmmm. 341mblndemat'eusedforLARCANmanualsaeemytowmstomersbefiusees-rlngbhderenebles eesemblydrawings end/or equipment summations betempoterity ens-acted and medinemofe convenient pleoewhen necessary. (Before theirjoining LARCAN. several ofourstall’tedtnieel peoplewere previously broadcast station engineering technicians. whose astom was to temporarily tape their serverne‘flts to the mariner-phat dooreforconvenient mietencemenwendng insidelheequiwnent). Dramtgsvmoeemribersbeginvrlmaoc,3tc.400,410t50Eor51Eniayhavabee1-trsdueedlnsizeereven splitintoseveralsheetstplltmtomebootdefst1'x17“fonnet$houldenyredueeddrawingsaspresemedin eurrrmlsbefuwdtllwlttnreedJutlsizeengineedngbluepnntsmavaihhteetmdramehysimply writinmemgorFAX-rgourCustnnnrseMeedepammtmquuesfingmeruemneddmvfingandrwfim “med. LARCAN NC. 228 Ambassador Drive, Mississauga. Ontario, Canada L5l' 2J2 Phone (90565449222; FAX (905)~564—9244. TsuzomMe; Novemberzs‘ 1998 11 1owvrtr=~nptmcr “1011 um - 10 Witt VHF AMPUFIER GENERAL DESCRlPTKJN Team-em Mommas! 12 10WVHFAmp|mer VHF AMPLIF‘ER lNSTAu-Aflofl cm: Part Topic Pan- 1. 2. 3. 4. 5. 6. 7. Unpaddng A . ‘ . 8. Tums-must Exismd lmemd Comedians A Q On Sim: Flm Tune starkly: ................................................ 29-13 List of Figural: Fla m: Drawing mu 1 Transmmf |menock 001mm .................................... text. pg 29-12 2 Application Diem: Transmitter emu-Hing Prlm'xles 3 Applwuon Diagram: Tower and Bunting Gaming Posse-29mm: mamas 294 vrrmmfiarmnuflcn VHF AMPLIHER INSTALLATION Fuses-29mm Dan 12. 1m 2941 w; Ampimerlnmllamn VHF AMPLIFIER menu/men IMPORTANT: lt'you haven‘t dready done so. please take the time to read. study. and understand your Beater manual, and all sections of this manual. You may tlnd overlooked items that may be significant to your mstaltation planning orto the wt wofkto be done. 1. GENERAL INFORMA‘HON The economics of manufadurlng a transmitter dictates that much of the installation inromiation in ita manual must be non-specific to any particular site Although most at the tollowing material, which we are presenting as "technical interest” information, is pertinent to higher pcht‘Bd transmitter-e some of it is geneialiy applicable to toNpouered equipment aawell. We hope that one or more at these suggestions contained herein wflt prove helpful to you and provide wortmvhlte dialtenge to your imagination and technical ability. One of the keys to a smeasdul installation is meticulous piann‘ng and adequate alowanoee fortask tiniest Allow suffic‘ent time to consider and plan all aspects of the installation including the bidding. whether new or existing. then allow for realistic time spans for the building construction or renovation. equipment rrarlsponation and installation, and llnal commissioning. A low powered transmitter naturally will require a very short time span for these activities. whie high powered equipment could require many mornha Should you feel apprehensive about planning an instalation, firmly phone or FAX our Appficetions Engineering Manageer is available mo able to guide you. Your consulting engineer is also a good source of information Both these persons would be familiar with tediniwl aSpeots of the proposed installation Applications Engineering support uttered by LARCAN includes technical irtfonnation. recornnlendaiions on vendor products when requested. and advice on pvuied task considerations and time span estimation. This Although general application intonnation (Figures 2 and 3) was included in this manual. it is impomnt that specificsystemlayoutabeprepared. andthatlocatiensoftzabhetaandRFequipmentsudtasRF patchingor suibhing equlpment. are determined togetherwith the routing of the transmission line. AC power (Mains) feeds and other wirlng. grounding (earthlng), and ventflatlon air ducting. Lightning protedion should be considered eadyhmpmmi'qprowssmeoeuseagwdwfldinghyomunefiersignmambemfil We mention "cabinet!" throughom this document. although the Trsme and T'TSSOB transmitters were designed as single chassis for rack mounting in a standard 19‘ cabinet to be supplied by the wsmmer. This assumption was based on the antidpated marketior the transmitter being for star-thy or unattended isolated sitelowlbhsandthateabiteheckspaoeotabotkfl'zfi‘woutdbeavaitableformountingtheamplifierand excitef ortranahtnr. The cabinet ventilation openings should be titted with airman. to help the transmitter components remeindean. Alternatively, atabletopstyleofcabinetmnbewedmadltrequired Duemidefidonrmstbegiven toventiaflon,espreperooofimensuresmebngestequlpmemlitem. Basic oootinginionnationisprovidedinfolwtharlS. buttlahigherpoweradtmnsmitterisalsoonsitemabeieve mattheimponanoeofthe subject maywanantandiustflymenlreofenemeriencadairconditloning contrador. Ensu'ethatmftldentspeoeis available bomtntrontand rearotalt cabirietsandotttereqtjpmentto permiteasy access whfle equipment is being moved ammo. and to enhance awesstbllity for We maintenance. A Mnumeom 100om(about3 to Still) otdearanoe is recommended to allow amesstora tecmioian and test emipmem. but you may need more clearance for other reasons offer the lifting devices sometimes used during installations You may wish to consult local equipment rental agenciesvtor dimenslons ofthelr avalable lilting appemms;memqukeddeaianoeisoneefflie'planning”hemsmbemneidered. All cabinets should be level. An uneven ltoor surface can elated the sheet metal frames at many cabinets so that door latches will not operate properly. PUBSsze rev ct, nee. 12 1998 29-1 VHF Amplifier imitation VHF AMPLIFIER iNSTALLATiON 2. GROUNDINGIEARTHING Please overlook our typically North American use of the word "grounding" throughout this text to describe a connection to earth, and the were "ground" which usually refers to a point olzero voltage. ie. the oath. We are certain. however, that the identical mearings or derivations of the word "ground“ with those words pertinent to “earth” as universally understood by all broadcasters. That said. we shall proceed. For safety. it is important that grounding conductors of adequate size be used to connect the transmitter (and other) moms) to the station ‘teohniml ground“ point The menu build-read plate through which all circuits and ooaxl‘neslnandlromthetowerwlllms, makesan excelemlscmiculgromdbewrseltwlllbeoonneded with oneortwo, 150 mmwldex 1.5 mm thick, oopperstrapsto homer-ground system. Frgures 2 and 3 suggest one method, in which copper bar 75 or 100 mm wide and the same thickness as the “cattle is laid mdero'ansmitter and other unmet: for grounding. Each cabinet rock or tabletop cabinet is then connected with 1.5 mm copperstrap orautomotrve starterceble to the copper-ground bar. The copper barin mmctstothematslbutlmead plate. Altematively. mpperstrapmn oelaidinagroundedovemeadcable ltey. indoor grounding conducmm must ultimately connect to the bulldlead plate. Consultyoureledrlmi codebook, oraskyoweleclriwl collimator-ammo minimumpemtissible ground conductor size. but for broadcast “rrstalations a m ground impedance is desirable, so generally the cross section preachmblnotgroundshowdoemesemeorlagerlhanmetotalotitsACwinnga'osssecfion. Anomoorgrmcomedimsstmldbewellbondeduslnganexomennicbmzing processsudt as Cameld'“ or equ'valem. Spatial precaufions shodd be taken to mini'rrize comsion where connedions are made of disslmlhrmetais. lndoormnnedions can be brazed, saver soldered, orsimply bolted together and then tin-lead soldered in the conventional manner. When indoors. don‘t iomet that the steelwork. the ventilation system, and an other metdlio objects in the building, should also be grounded ltr‘s mandatory lhatagood low impedance earth groundbeprovidedforthetower. and iris good praoficeto employmisrowerground torall station ground connections Asystemotouned radial oonmraonasshwnin Figures.mmgmmmmmmmmwyanmonmmrummmm severalgroundmdsspamdsmmcsmeirbngmapmwmvenmmmtertableficonsiduedwbe agoodground. TriesuelrebarsandJ-bolts In footings should alsobebondedtothis ground system Be careful ofrflssr‘mflarmetals, end don't/Maze anythingtoma towerlegsl Use muses steel worm gearstyle hosedampstodampooppersu-aporcoppervdrestometowermenbers Aspeo‘aloonmdivegreaseie eveieble to avoid dissimrlar metals intrusion. but frequent inspection is necessary. More heroic measuresbeoome neoessaryltthe towertlooling is lowladon solid bare rock. These measures would ir'nide setting the gromding radiate in poured concerns (which has surprising” good conduuivity), doping with conduoivity-emandng menial salts sud: as megnesiun sulphate (Epsom salts are supposed to be less envionmentalyhanntulmanolhers). and whgspecialholwgroundrodsthatare intendedtobednveninto holes driledintherock. mmansaidtobommenficaltytommckandpmvldaexcenamgomdmg, as long as they are kept filed with water or mental solution 'ULTRA GROUND" rods are available through LARCAN crfrom our trainees afliliate LeBlmc at Royle Teloom lnr. The building layout should place the lower. its wiring. transmission line. the AC panels and surge suppressor. and the teIEphone terminations. all near one mother so that all ground connectons are as short as possflsle; all I'ldooreqrdpmemshould begroundedtotheseme ‘leohnlw ground'whld'rwe suggestsnould bathe Mm,whimfiflbewmeagoodhflhpedamemmmdvmenomnmedmswemi 150m copper straps to the romeo This single technial ground will provide the basis for lightning protedlon or all equipment in the building. Both the power company and the telephone company should also use this same technical ground, otherwise a Eghtning hit to the tower could easily induce damaging omelents that back up through the equipment and out the power or phone line to its own ground comedions. Sumo suppressors for coax lines and othertower clrmlts can mount (and ground) on the bulkhead plate. Fuses-29 revo: Dec 11 1993 29-2 VHF Amplifier triathlon VHF AMPLIFIER INSTALLA‘HON Many installations In large cities make use of existing tall buildings or specifidelly dedlmted shudures (such as the CN Tower in Toronto, Canada). and groundlng for these instalafions could present a slight diellenge. Most tall sum-hires are provlded wlth wide copper mpe mnning from top to base. and grounded at or under the building foundations. The amount steel ls also grounded in the same point. The challenge down when tre 3mm susialns a lightninghit. because an anon-nous voltage gradientw'il he presentfrom top to bottom. Equipmerdgromtfingmuslbedone loonepointomy, esexpleinedinme mnseaien. Although most audio and video signals around the transmitter plant are of relatively high levels, it is well to be awareofemlmrpleeraepectmshouldbe eddusedanyway. this isthe posslbiltty ofhadverlentcreation ofoneormre'goundloops‘otmeldndmetcanindueemmir'inlowlevelalniociwm. the most common cause of the hum-inducing kind of "ground loop" is a result of oodeapproved electrlcel went in which all wiring is placed inslde metellle oonduit or raceway, end the conduit is attadied to. and in cement with. the grounded shim-Ital steelmrkol‘me bulding. Here is what can happen: 1. The transmitter animals are grounded; 2A The electrical servloe panels are grounded; 3. The conduit or raceway additionally may be grounded through its fasteners to the strumml steel: 4.1heservioepanelismnnededhylhe metalicpemmroughacmdukorrecewayto lt'tetransmittercabhet The result is meormore large areasingtemmloopslhsthaveACrnduced inthern duetoihewiring lnlhe condu‘n between can induce signifies“ hum laments into low level audio wiring. This grmmdlng treatment is lamentable to most regulatory armoritles in North Amerie and pumps elsewhere as well. provided that the equipment in that is grounded through the copper gmtmd conductors, the bulkhead planandsofinowergmmd. Notelhalhis methoddeesreqrireinstallationdeseperete dedimted gmund'ltg wire Inside eed'i conduittorlheconnedlonofmeuomedground wntaddeadlmoepfldfiwhemr receptacles ere used. lt is assumed that isolated ground receptades are available, usually foruse in 01me ltmaybemcessarymatywand wurmmewmmmmimmsmmm reassuremmmpemrmmmdgmmpsdoesnmmhdconmmmappflflile codes. Atlhevetyleestyouwllprobeblyneedmprovematallyoureqmprnemehoeedgrounded.despltsm mn~metaltic oohnectlenotconduit ormceimay, meaninetslnvmmhtheymamt. LARCANexcltervideohputsuseamflerenfialconnedionenderemt gmunded, so do not contribute to a coaxial able ground loop. The transmission line, however, B grounded at the tower, at the bulkhead. end at the transmitter. Treatmemotcoax cableground loops usually consiss ofcoaxlel cable dress in such a mennerastominimize the area presented by the loop Lowering the fine bridge pemen the bullding end lewerwill indeed reduce the mm! the energy induced on the center condmmrdue to a directlightra'ng hittomewer. 100 to130 cm (341!) MSG-29 revo: Dec. 12, 1998 293 VHF Amplifier Installation VNFAHPUFIER INSTALLATION 2. GROUNDINGIEARTHING (mo). The Canadian Broadcasting Corporation, through its Engineering Headquarters group. maintains its own standards for equipment design and installation and has pubflshed many of these for the infatuation of its “pliers. The CBC spodfioetion ”Town/eel PowerDisfiihun‘on and Grounding Standards. ESS-Tz4'and CBC drawing 45753 whid'i indimtes the groundng practices lbllomd in its itsiahims. are highly recommended. Upon request. LARCAN an provide you with a copy of these CBC documents. Although wetryto avoid muting any petioutarvendororprodud. we have nohesihion in also reoornmemflng M0 publications from [he PolyPhaser Carp, phone 18004257170 or (warm-3511. FAX (film-7824476. In Canada. meirrep is smcutss lNC, tat (smear-0624, FAX (905)-727-0861. One it The GROUNDS bbehmlng andEMPPmtaoa‘on. Second m'by Roger R. Blodc this ten published by Poinhaseris well worth the small price askei mating/EMF and Groundhg Solutions' is the orient PolyPhaser atatog of Mg materials and lightning sage suppression devices. The fitalog is free. Both of hose publications are recommended reading for anyone planning a ground system. 3. LIGHTNING AND OTHER TRANSIENT PROTECTION - a tutorial: Alameproponlon ofmefottowing informationwhioh is offered abmlighmmg, westekeniroma booklet snfitied 'LIGH17llING PROTECTION ierADIO TRANSMITTER STATIONS" pubishsd "n 1985 by NAUTEL. whim is e caneflan manufaoturerofAM imsrnitt‘ng equipment olherimonnaion came from the PolyPhaseroeteiog andtromihei'textlaook Tie GROUNDSforLin'ring & EMFProwdion, Secondatr'lion'midt we recommend tighly as worth is modest purchase price foranyone planning a ground system. WewoddlineiomankthepeopiestbomNAUTELendPolyPhasenandweherebygtatemnyedmowledgemeir mnfi'lbuionslomemoffi'sart The mmndmmmwnmmmmmkmmmmmmmsmaymem mm.wwer,endpoweflinesfihee flteaoiJaIir-toidmveneswidelywimgeograpriclooeionend lsalsoaflededhylooelbpogaphtheheightofmemet‘.androutingofihehooningpowerendtelephme lines. Unlesspremutionarystepsaretaken,sidistrikesoowdaueetrxnsnitterdarnagemarfimlanytothe malemplifiersandtotheACinereotltiersassodatedvdmthem. OtrnnjorzeeofoonoerniswlthmansitkemusedbydisohergeoimergynomaneleMohargod doudtogmmd Moaetedrioelstumserelofilzedjhortinemm, endt‘ausedbyloafizedairheaingandoonvecion. Mess oommonbutmoretroubtesometypeofstonnishefrontaltypecaussdbymameetingoi’wannmoistand odd-fiyeinfisusmfltguptosevemlmwedmiee Theweatherotlloepeopleintheu.S.andCanada. Newmamflstmmsmhdwmhmmmmmmamudmmdmmmg lmndemormxmeseemshownesoontouswhiohinNomArnefifivdltvarytromc=1fornormamCmada. eilthewaytnc=100foroemfit Florida (hequetorielregionswormidefisevenhigher. Insomeponsol Afiia.C=150,andInSotmtAmerimintheAmazonbesin.C=2tD). Theaveragenumberoflghmlngstrikes per-squaremneperyesrmybeoemmdmmmbymumwngmeCnmnbernyoel For localized convection mmderstorrns,thestrilteinoidenoeisabout 75% ofthet'rontalstonnitddencememaps duetomorelrequentdoud—todouddisdiergeooourenoes. Agrotrtded(mm)strmeof‘ifteetheightisoonsideredbysameatmrornlesmessenialiyooverenarea onnH’sqxareieeua redusappron‘matelyheefimes its height). andstrike inddemewimin matarea eta site where frontal storms predominate, will be approidmately C x 0.375 H’ x 10" Pueeue m 0: Der: rz, 1993 29-4 VHF Amplifier lnnallaion VHF AMPLIFIER INSTALLATION ThefuregoingleedsustlospeuilatematasmfootmwerlnaermalFlendamr‘nsawivalanthanotherragmn), In contour 100 and with trunlal stems. wil be stmek an aveer of 9.4 times a year. and for the Canadian pfiheslneonlourZOwitnsmmerfimeccmadonstonm.a5001wtmwarwouldraeaiveenaverageof1.4 titsperyeer. More important. Me'lightning Maness’ofma mdependsonme SQUAREc/fitsneigm. nmemarissimatedontepafarfilermwnain.H'wflbeinaeaeedbylflehfllormwmainheightam bmnesepmmialelysqiivalemtnmaemanna EHAAT. In practice. dimension H'isefignily higher-mantis antannaelevatlon,bemuseametalfigtmhgmdwilbemstanedforpmtaaimofmempmstsnaDeor incandescent beacon. whim is usually located shew/e the antenna. Ammuginswmalofilbnizamdmmsphnfilada'stapleade'vmldljlmpsatavelodty abom150flper1psmamermavery49-50ps. lteanbesssumedmatduingeecndormanwmintarval, this leaderbuildsupilsvoltageteizuseiorizatbnformenen150m andlhenfindsltsnenstepmilnln an imaginary hemisphereofisoltradlus. Sinceitisposmlatadtnbewilhinahenfisphemmesuapbadergeomenyeenbestmmatahomnmlmm uammmmymererighermanm150npnhtaboveaveragatenain,soside mounted panelorSTL microwave armmas can be just as vulnerable as top mounted slotorlurnstlle designs. Form-lately. the STL anhflnaisollaflflanked by metallicguywiras. musnas sunwwtbsflsfpmtafiim. bulguyslhat happentn be located in Molina panels oftl'iemelnantennaaraumanyfibemlasstaavoid distortion olthoradlatlon pattern Imagine a large ball son 1: in diameter. rolling amund in all directions; whereverltloudies a grounded object. can become a point ofattammentfora lightning hit. (From this, weeen infermetcoaflal "wounding klts' will berequlredatleastatme1501tpointonthetzmar,atmemmervalsabovemandnmdefinllalyatbom the baseofihe towerandtha bum-teed plate'n thebuilding wall). The return (main) stroke cf a lightning strike is characterized by a rapid rise and nearly mammal decay of current essentially frame high impedance some mprieed ofa long length etionized air. Presumably, the ‘ndudsnce ofthls ai'pamdatanfineemerateofnseofme 0-1!er anditiea‘rpatnrsslstame detennlnesthe mummueandilxdeceyrata. Obviouslytnewrentpeakvalmwillvaryfrwnwikawsmhe.andstatistiaalpmbahilitybasedonernpirieeldah hmarrrafienvmie(50%otafligming mmfteooomzomc anparasmhilelhe pulsedecaylengih inhalfiispeekmiplmdealsohasepmbabilyd’smhumnmgefiom10psta100ps,wflhamedianvalueof 4D us. Thereisalseempmbabifitymmepealtwmunmm.oo0mps,anda1%prubabflitylhat ofmeomaroffvps. Theliglmlngstrfltewmistsofadlsdiargefimnadmgeddoudintomaam-hflmmkMiseafled ‘gmund‘ur‘eanh". Unfortunately, at the surfacaofnur planetan ideal tarmhal eonmctlngtolheideal gound (aarlh)isrerelylleveravaidale; practitalteminalswillmnnedtn ltviaaiinite impedance having both resistancemdlndudance,renghgfremafewomisloafewhmdredomne This impliesmnannnpedaneeof, say. 100mmmidealgmundlswtiatyouMVa,menmaver-ags figmnglitalzonooanpswllldellverzmkvmme10enms,enditisomiousthattnismustbeprwampedsteei tings.ehdcompereitwithlhe measured inducteme of a finite toroid. Don't forget that ALL conductors and their sheathing or shielding enmdfng up the tower are "incoming" for a lightning strike; they need suppressors and inductances. The outer conductor of every coaxial cable or transmission line. or the metallic sheath of mineral insulated or other multiconduder cable should be bonded (grounded) tn the tower attrequent intervals to reduce probabilly ct jacket puma from the voltage gradients that could be developed bemoan the cable and the tower, and these "wists and sheeths‘ definitely must be grounded to the tower base and to the building wait bulkhead plate. Rigid line is usually bonded to the tower with antdieistraporamemngerphoedevewtewflmgesnfiumlhsmedceblesheemmgisbondedmm metallic fasteners. and plastic insulated cables must also have a mefllir: sheath Fleadbleinorsleefiedjadmdfiblelsslrippedofabom1"io1‘1§"ofisjadcelatfrequem(80~50fl) intervals. aground strapiscomededtothembleouterconductor,thenespecialpolymermpeisusedtoresealand waterprooftheiacket. Gmtdhgldtsoentsinallmemaenalsrequired. Broadcastamennasareimallygroundedtometower. socreatefewproblems. Othermtennas. suchasmme designs used for two—way radio, may connect tiredy to the center conductors of their nobles and are insulated transient suppressors having good energy ratings and low VSWR are available from PolyPhaser. and for multiconduabr cable there are also suitable suppressors altered. We don’t htentiomliy wish to tout any particular vendor. but these produas are highly recommended. Fuses-29 m d Dec. 11 1906 29-7 VHF Amplifier imitation VHF AMPLIFIER lNSTALLATION l IJGHTNING AND OTHER TRANSIENT PROTECTION - I (arterial: (confirmed). Coaxial line and other lower drcuit surge suppressors sheila be mounted on and grounded to the bulkhead. which must be well grounded (that means low inductance as wail) with at least two, 150 mm x 115 mm copper straps lathe lowergroundsystemt Any bends in these strapsshould be as graduates poaible. Bearelhatallgremdpaminpedanosareasieweepossmle.mdu'ytaanangemesuppressorlorztionsano their grounding eondufiors so that personnel Gnnot oome in nomad with them during a thunderstorm. This some wrrents underground. All suppressors and ewipmem ground connections. however, should be made no the bulkhead plate which is bonded to the tower ground system. toroids integrated together. which may be worthMiite muse the finite provides the necessary impedance betwaentha suppressorand lheequipment. and avoidsthe need forsomoing atlaastlwo largeteroids thetwill fitoverlhefowlarga conductors neededbythetypleal SphaseAc powerservioeemranoe. Otherdesigm use air core inductors to avoid possible samratien of ferrite material from sumssive unkiiredional lightning hits. Atleastone otherbrandhdudesrighpoweredaotivefiiterrieuits Besuretp devmesomeotyourtimetn investigation of the various suppressors available to suit your applications (you will indeed have several applleatiens on site) before you- clecisien is made It is notagood ideamgowitrwutsupprauors. orwlttwutisolating impedanoes betweenthesuppressersand the equipment becausemerawouldthennetbeaeonh'oledpathtortheightnirrgenergytofollew,husitis possible that the next hit crud tlnd an easier path Winch the PA module cirmit components. power supply rectifiers, or power transformer insulation. and these imms fin become quite expensive. Generally, pas protector devims are useful on circuits having relatively low voltage but higher source impedanceasintelephoneandsignallingsymm. Wuhspeoialgases.theymnbeelleofiveon500fines. espadaiyvmaemeuammmu‘sVSWRpmmdionshutsoflBnRanmwiydunngflHam ACpowarline soumeimpedenoesaremuchmolowforgastltledpretecmrdevmtofunofionpropenyjeoeute onoeanan: beginsthare,megasphenammairslorfiudbngmrghmmanenAChencydewMuds.menmnen ate resulting mammary high wrrenttlowlruoughthegm. Surge suppressors ushg MovsworkbestforAC metmmflmfihaveuMMwahnpeoanoemamprpomnndmenghfimenergygoes mgroundetlhetowerbaseorguymdiers,andenlyasmeiiomomtthenneedstobedissipaledlnthe suppressors Loonflrlgmellnebridgebemeenmemerandme buildingaslowespassiblau melaroralp 4k above grade is suggested) will ramttin lawerhduced energy into all suppressors, and atlhesame time. ”Hemmeneededmmbmadtmmetopolhemmfltefcabmetorpatdlpenel,dmmme bulldtead platewilladd desirable isolating indudanoe. Mmytypesefproteofimdevioesareavafiebleatewiderangeofpnees. Meventhemostexpensive protection Is extremely economical when compared with potential cost! of affair loss of revenue, and/or the costs of rebuilding or replacemem oflhe equipment being pretreated You may use wishto eonsrltwilh yaurpwer utility company engineers; their extensive experience with lightning and grounding muld certainly quaify them to be able to advise you about these same subjeds, and a phone ml or FAX to the dePhaser people might also prove womvmiie PolyPhaser numbers: Phone 1-800325-7170 or (702)<7B2-251 1; and their FAX is (7 02)-782-4476. Fuses—29 revo: Dee 12 1998 29-8 VHF Amplifier imitation VHF AMPIJFIER INSTALLATION 4. A FEW WORDS ABOUT POWER WIRING: This tmrlsmiiter requires a single phase power source. The transmifler power supply is a switcher type with auhoranging AC input allowing it to operate in the ranges of 90 in 135 V or180 to 270 V. Typimi measured power consumption at black, amplifier only. is 200 VA at 49% PF ffl‘ the TTS‘IOB. and 285 VA 814996 PF for the TTSsOE. The exciton though. needs its primary taps set for appropriate line voltage. Mitch must be within 21016 ofriominai. Taps are at 100, 120, 130, 200. 210, 220, 230. 240, 250. and 260 V. Thestandarddesignmmehanuninertoopemteine-tommaifiwnshglepnaselwmtsov. For operation intypieeISOI-izregions. maSSDVor416Vmeheisavalable.theti-ansmltteralscweuldbe connected to operate uneMuh-d. Line to neutral in 380 V 3 phase mails is 20 V, and in 415 V 3 phase mains. lite to neutral is 240 V. Optionally (with added fuse 1F2) it can be opetated line-(Mine when used as a mndby eta sitewherezfle V3 phase pmris available, oriromsingie phase 115-0-115 V power. All switcher power supplies use a lame Input filter capacitor, which is the reason for the poor powerl'amt. "Power teeter is based on measurement of zero uossings of Input voltage and input current and 100 times mmotmwouosshgsangtwmmmeismepowwmmm Astheswitcheroperates titefiie'tzpedtorrediageumemoculsintflmwhighunmpeeks,soit'temrrentzeroaossingsobviously don'lcolnddew'tmmevomgezemanssings. Fumennore.aism.p.fliempediofhaenoemddmeend takes a largeinrush wrrenttcrihetirsttewAc cydesiobringitsmreddtargeuptoavaweencughtcrme supply to opetate. Tune oelaytuseeor'dmrlt breakers are it'lerefore nmryen the powerline feedingthe transmitter. Vendorspedfiedvonegepeek thrush ourrentisabomssampe For standard fine-mt operation, afuse1F1 is provided; for-the 115108 thistuse is 7 amps stow blow, andfurtitefissoettiettseisizampsstowbiow. Formoowefsouoemesuggestthataslowtripbreeker of 15 amps, miedfermobrsfininq service. sl’touldbe satisfactory. Emerlowestvoiiage theTI'SSOE transmitter and its exoiter heather should draw less than 5 amps. so a 15 amp breaker is adequate. For optional iiie-to-line operation. the transrniiterisfittedwim Mothses,1F1aid1F2. Asinusordaloutput ACvoItage mgulstpris recommended so thanhe anew-AC input maimwithin its 11096 imitation. eepecieiiyetsiteswhere the voltages fluctuate widely. Regulators havinqvariebie transformetsthatworke bunk-boost oomediontothe maim, provide sinusoidal uspmsmusaremebemegumtormepurpose Onesnunwaoeattisfliatsomevanailetrmsfmnersere mmmwmmmmmeomgmennfimoemmmmvfltage, Forrmetsimations, mosteftt-ietirne,themainsvoltegevariefionrateisstowenwghmatlfisisrmofoonoem' Motoronvenreguatorresponsespeedismtusualyaiticeljmmereismmafionformistypecfiegdamr that should be inept in mind: Many powerhilurel are preceded by an abnomleiiy low mains voltage with oonsequenthighestoutpmtrcmthereguenor, andupon restoraflonotpvmttnotmoftheregmatorvdll Mombeatmmaidhunlwmelengmomnequredtormemguhwmmpond To make matters worse. often the restored iicoming nielris voltage wil be well above normal for several same. A powersurge of extremely high voltage thus fin be applied to the equipment. Therelsasomtiontomisregulamrresponseprobiem: mmgdainrmdbespedfiedtohavebamty bacialp, aDCservoamph’flerendDCrnoflordnvingthe variable transformer. and compilerarrangements soul that it will reset itselir to its LOWESToutput voltage DURING a power white. The room in! be that upon restoration, the output voltage will begin at its lowest value This will avoid equipment We Setthg oftheregrlatprtorfigtitreguiationvdl wuseitto oonedorien forsmel incoming voltage oranges. whid’t mayresdi'n'lueased bmshweerinthevflienle iranstomtens). Sonteregulatotswhidi have no brushes use special transformers In which Mo coils move in relation to each other. The original designs of these variable transit-inner: came from General Elearic and were called ‘1nduetrol" regulators. Piraeus rev it Dee 12, was 29-9 VHF Amplifier imitation VHF AMPUFlER INSTALLATION 4. A FEW WORDS ABOUT POWER “RING: (mminued). Another companys design ctregulator made use of a large mberof thyristordevices to with taps on a trawlerrnerwindingjndmuidreqrmetleattwoACwdastorflsoommllerci’wittodeddemmtapneeded bbesuitdtedmimmeremluhatsmetlspikeswereinherenttypatot‘mereguatedcmput. The TTS1OB or 173508 and its meter have good internal regulation for Mde memes (noninal 11036) of inciting line voltage, but other tan-site equipment may not be as forgiving of poor line regulation, and a voltage regthorisedesiabteameswry. lfthesitemainsvoltaqe magmrman 1096 variation. e voltage regulator that has wide urge input voltage specifications, should be cmsidered mandatory. 5. VENflLAT'ION/NR CONDlTlONlNG INFORMA‘HON Atblackleveiwitt-ifullaurflpmr,ItiemafimumamoumdheatisgmemtedbylheRFen-plfler. This heat islemovedbybreedoonvedientmmtheheatslrk Abuittmbmrerpushesei'mmughmeheatsinkfiun vmiehitisamaustedmmehansmiltermom. Caremustbetakenmatmaspedfledmardrmntransmitter armient temperature 0145'0 is not exceeded at any time. TheRFeveiaqepweroutputdetiveredtametransmissionImhelmsflwattsatbtedrlevetwimaumlm, whenmeTTStOBtransnimerisoper-afingetltsretedpeakvisuatmd timem'etomput. Subtrarfingthis7w amomtt'mrnthe(200VAx.49PF)=9&WefAprerInpuLgivesmmamatgemmtedbyeilmgeshme msmiuenaboutsuww. AddlhetOOWexdterpowerhpmb'his.andmemtdiswomtsflWfortha Immefontmaln unwise,menssuedelmaveragepmorssmememm-makesam (285VAxr4ePF)=140WofAcpmrimmrmgmmaboutoswamorhmammmm =m5mtrsofmarmmmeain Mequipmemheetamumdonotimwdemeheetdiefipebdbyim andmonitodrtgequipnrentoromersoumesofheetinmmm DuewmemmpteudtyMVnenfimdedpfimoffinafinngfiafimmdekmnfiomng'WAC).itis recommended for best results that the services of an erqaerieneed a‘r corritionhg contractor/engineer be engaged forthe design and implementation otyowbuilding a'r mittenhg orventlletton synem. This is partupsmeimporiamatsharedsitesushgesinglem.mushrm-wayredo,ceflphone.teleo.endlor Mmmesmwflmnufifiesmmemmmayuhflnmwmm Forbutgetarypupcsethmaywishhpeflcnnfisufinafingmrdse: Assumingatransrritfiersiteonlylno studio fedlities), moor-mummmwc. typicalywlndvfllessoowete btodtwalls, minsulated premwnaetemof,mdoveraidmions16flx20flx11ttitwmobabtyrewieebunz‘zstnam olrefi'igeratimlokaepmebuifinghabi‘huefuran measumemmzo'mzs'cmmipmm Thisis equivalenttomaybe5kWothe8t,artdoqijprnemmathededdsmmmameafutasmperhwrror everyldlmattofheat,vmmwomsomtoabanoatonufreffigemfionrequiredtnremevemldlowettal'heat. T'hereare120003TUperhotrinetmofretrlgefltiel-r. Tmrfltterheatisspedfledabwe,brxtmemdtequipmentandnghtinglcedsereimpedfied Simplytotalthe i‘lputpwerferthisotherequhmem,sineeyoumnsafelyassumeelliuACimgemwnvertedi-mheet Add munmmandmmwe addtheresuttnfl'IBSkarfl'temlldng,muflptymelntalkWnunberby 0.3.mundfl'iemsukrpmmenmmtegmlmmberjndmatismappmmmmnmge. Reference to mail order Wings (Sears, etc) lndhztee approxirmtsly the price per hall-ton tera 6000 BTU windwmumairoanmner: Wedon't recommend Mndwmmmaireonditionersbefiusetheyaenot mummmammmmmmmmmmuspmmm This price perhsti-lon mustthenbemrltiplied bytwoandmenbyynur'ntegrelnumberoftme Theresuttofthis math representsacontinmusty running system; multiply againbymt'ormainaitemale. HESS-Ema 000.12 1995 29-10 vr-iFmprni-rumnafim VHF AMPLIFIER INSTALLA'HON The resuming total gives you an approximate equipment cost. less installation Your air conditioning connector should then be asked for an official estimate, induding installation and warranty. 8. FIRE PROTECTION Somepersonsmaythirktha‘tthetoming material is totally overdonefora lowpowered transmittersite; indeed, menysuchsitsareinremoteregionsoflhecoumryandwouldprobabiysustainlermoredamagelromforest fires than tromllres originating in the equipment «elsewhere inside the building, Nevertheless, you mayllnd something ottechnicel inerestirithispet'tevendtough someofitmeynotbereievamtoyou. Transmitter interlock connections are on m4 and T82-4 on the back of the amplifier chassis. These conrieotionsform a series pathfor'Extemd interlock #1"whid| enables the transmitters control cirwit. including itsbitmerr Beausetheairis simply exharistedtothe room, inmseofilrethe wrrentolairlromthetransmilter mayl‘an the names, so itis desirablethatthe blwerbestopped. Allrealarmsystem shoddbe ableto be an-angedtoprovideesetofnonnailyoioseddrycontadslooonnecthtodiisineriodringu‘rcuititis recommended that this be done, other alarm system contacts may also be needed for various purposes separate item the transmitter. These extra alarm syeem cornacts may be needed to shut down other air systems in the building, to close air dampers and tire doors, and to enable activation of automatic firefighting apparatus, if provided. One extra set of dry oontaotsshouid bemadeavailablelorreporting ofthefire mmugh the remotecorttmi. Bu‘idingdesigte'sometrwghtmata lire alarm system needed onlyto trip the main AC breakerto the building, whiclwlomdamomatioewmpalllansandbiowers. Aslongasthellreisprevemedtromspreafinqoyenswing allbiowersaestbppedandairdampers dosed. momedoommedoseimereisnoreasonlhamc cannot remain on. to keep light‘ngavailable l'orevacuationofpersonnel. For installations where the transmitter is located on top of a tall building. the main AC should never be able to be tripped by a tire alarm, because doing this can also stop elevators lull of people, sometimes between floors. fire alarm systems lortheee situations should be engineered by spedaiists. itis assumedthat it an emergency attemater is installed at the station, it is located in eittiera separate building. efireprootvautwilhitsewnseperateventiiation, erin itsownencioswe. andisfittedvnthitsomlireprotecfion systems, so the above air-system considerations would not apply to it. Specific building codes may apply to it though. partialerty regarflng its fuel supply. it Is well to died: with your fire chief, fire marshell's office. and/or builtfing inspector tor applicable code requirements. The transmitter plant, particularly those using higher powered transmitting equipment represents too large an Invest-nerd to neglect its fi'e proteaion, especially for matter-19d sites having diltlcdt access investigation of available fire alarm and tire lighting systems should be carried out as early in the design process as possible, and well before llnal design commitment. Your local lire chief or fire mershall's ofltce may be helpltil sources of advice during blaming of your installation. Even ifthe site is normaly amended, it must be mandatory that any automatically activated fire fighting system an be disabled whenever personnel are working in the space protected by the system Most systems for use with electoral appaetus, depend on the high pressure discharge of carbon dioxide, halogenated hydrocarbons sum as Halon". when tetradtioride, or other equally deadly extinguisher gases into a closed equipment team: this puts a fire out by displacing all oxygen. Obviously, the design must be faflsafe, because when personnel are working in the room, they must never under any circumstances be exposed to a risk ofsystem mdfunzxion Mrichcouldbelatal. Checkltisout: it’s important. Fuses-29 rev 0: Dec. 12 1995 29-11 VHF Amplifier installation VHF AMPLIFIER msmumou 7. UNPACflNG Caetuwmpedesdlpaimgeasnismcdvubrpossibleshippmgdamage. aimsfofdamaqedequipmem mustbeflledwlmmammwdaysofdelweryarmedaimvdunotbeemepmd. Unless spedficoamracmel arrangememsforfille, FOBloeation, etc. have been nude, generallylne delivery afmeequipmtomeeermrbyLARCANlNcioonsfitnestzansferoffinetomemsmmerjndnismrefore watcmerresponsibilityhenmhatanysudldeimsam pmpflyfileddimalywimmemnien Chodtmeequbmenheeeivedegammosfippingflst Shandmereqapearbbeasfipplngefmrorlf mmwmmmummmmmfimmmofiyywuncmmfimm maspossm. lfconstucfionormuvalionvmmanhemmmrsiteisnotmpletebymetimmeeqmpmemismoelved, repackalleqtipmemmnwamermeirmpedionemsmveminadeen,mjryereemevoidhenmomy oflheequipmem. Repwmeormmgeshmubspeflomedinmmmumprmmafissbymieeand umerwulanimmundmugemmhgs Cormdmmm§ptasterdustmelalfifinga andmrmewmamiwmemefingmeeqtflpmemmnnlsomdamage Whentheeonsuuuionworkiscen-lpleuflheareashwldbodearedolaldirtenddebfis.mdvemwned homugl'llybefomfl'leemipmentisinslalled. Plainoonu’etaflootsshouldbesealedorfiedtopmvemsurfeoe mistflmnbehgmmmommem Whenthemmismplatsjwmsmflagalnbemmdflafldmuflmadonm mm. before anyofmeequiptmntisiritialrymmed on. Mforloesesu'ewsandmdions. and tighten mare necessary. Finally: before powering up, be eemin that nl tools, surplus and scrap manor: mamas. stray m3. stray ‘blobs'ofsolder endewtfmmwies. striapedwlfeinsulation, end omens-ash, erecempletely removed mmimidemeeebinets. I. TRANSMITTER EXTERNAL INTERLOCK CONNECTIONS: RF PATCH PANEL: ' : w m) : mt me P/S : couucron . ,,_ .' o . a . + - o x 0 1K! "RE ALARM Exr mx | figure 1: TTS1OBand TrSSOBTransn-lmer lntenodt Conmcfions. Puma-29 ma: Dec; 12 1998 29-12 vHFAmplifier Installation VHF AMPLIFIER INSTALLATION Wewfllbehfisthmmmlypeopbmhk'lmemddng'isovarmmnforamlawptmsrsdequ'pmem. mammhevesrmumdlinejumpen1md21oryoutnusemllwollmemdts. Jus'lincassymno need(Marlow,smasvmmmamplifierisadflverfurahignpowaredmanmmls: Allimarlwkssm wwemrgy. 12VDC,andwnsmsminmeovderofabom250nulnampems. Conneefiorlsmwnm inwardly mammwsformuncm finsfitfisfijslnllows. Nomallydosedemlansfiommwidlngmdann sysearnshould amnefllnfxllmsm 1‘(1T82-3.4) mmmmmmmmnmmmm. Thismnalslmcomadwuldeomedhsems wlfl'lanypamhpandmmmwbadmmnckvdfing,unvfichanbemm.mmpamlm mmwmmmwmmmmmmmrfimaamm. Tmnsmiltfir operationillumfmmelfllenmowmmebmenmmmismmmwslndlmommn bymmmmmmnmnfinermdpanel,mdbymmmwm 9. FIRST-“ME ONSITE TRANSMITTER START -UP PROCEDURE: 1. Commemsnmmmawomndummyloadnrmsmnna Themimrusesason lypeNcnnnmrfurllsoulput Anhllnewamneterwmaseledlonofdmelememsshoddbe usedlurmeasuxemems. 2. Trmsmillelsmmma 1 Vpoak-lp-peakvidoosignalmme mdmator videoinpmjack Connect mmmmmmmwmmmmme RF oulpmmme inpumflhe amplifier. Tmmmmmmwmmmmmmmmmmm ammmmwoflmwplfler. 3. ConnectmfisvmmnslnmmisACcfi'szhmddberatedfoflsflmpemmdshwldbe wplisdmhastowubptheakerarfl'nedelayfuse.Gmemly,abmskafmismadfw amm—Emanmwflbemuflmhem. 4. Depressmaflnpiflel'ONpushbumn.mmmeLEDsmtdeXT1,TEMP.aMEXl23houldbe w.mdmanplmarpowerwplysmuldbeopeming. Verflymisbyobsewingmebluwar,md1 kpoweredbylmamplllerpuwsrsmplyammshwdbemmmg. 5. ThaampllflarissquippedwmovarpmraMVSWRpmMonsmhavebeenfawrysetTnset Mammammmmmmmnm,mplyaqustmmamsommmmof mamrjtflm1m. 6. Forampnllersequpcdwm'lAGc (latarmodeQWMAGCADJ level control). hmallysetlheopetafion mmuwmmmmwmmmmmcmmomnmmmmmmm mmwwramomoss. 7. smmAGCoperafioMAGCswr/Mllt) and adjustmeAGCADJ potsnfiome‘erun mesmpfifisrfrnm mlforamemrmadlngofiflflfi. Fuses-29mm Doc. 12 1993 29-13 wwma hut-man Notes: Posse-29mm Dec,121m VHF “Pl-FER INSTALLAflON 29-14 VHF Amplifier Indium VHF AMPLIFIER CHASSIS Comm: Part Topic Page 1 Chassis Description ....................................................... 304 List of Figures: Fig Trlie Drawing Reference 1 Chassis Assembly Diagram ............................... 4002158 sht 1 wiring Diagram, Amplifier, AC Line to Neutral . aoc1es7 sin 1 3 ‘powemne' Power Supply Data ............................ 1. Amplifier Chassis Assembly 400216061 through 400216863: Figure 1. The Amplifier Chassis consists of a standard 19" rack mounted 571 EU endosure containing 2 linear power supplies. the amplifier heatsink assembly, the output direetionat coupler, the bandpass filter (in most models), a ooelinofan,eeontrotpanel(metermdoontmtboard).mRFnleterirlgboard,afi1efiwr,andenACreley. Its basic part mmber is 4002168. Three frequency ranges are required to cover the entire VHF television spearum, thus there are three fimdan‘entat models of RF amplifier assemblies: forchanheie 2. 3, 4: channels 5, e; and channels 7 - 13. ACpowerhputtbrmelhreeAmpifier/rnodeleisoomededforsystnmopefitlenlmmoneineteneutral.most oommonlytrom115voilsACeinglephase. 400216861 Is the chassis for a 10 watt amplifier for operation on drennels 7 through 13 (174—216 MHz), ithes 3150wattpowersupply. and its AC is oonnectedlinetoneulral. 400216862 isthedtasistora towettAmpllfier foropemtion on ehannelsZ. 3. and4(54—72 MHz), lthea a150wettpo~ersuppfymndlnACisoonneotedlnetnneutreL 400216863 is the chassis for a 10 watt Amplifier for operation on d'lenrtels 5 and 6 (75-88 MHz). it has a 150wattpewersupply,anditsACisoonnecteolinetoneulrat. Although we indicate N‘f‘sc frequency rangeaJhe amplifiers are capable of frequency coverage outside the ranges cited. for CClR systems 8, D. ell: transmitter epptlations in otherreglonsmrtowide. Figure 1 is the fundamental assembly drawing of the chassis. The heabink cooling fan is a 48 volt DC 'Mutfin" model from Comair—Relnon; ills powered item the 48 volt amplifier power supply As bunt, the ooolng tan pulls warmed air tom the heatsink so the cooling air enters through the perforations In the diesels front panel. This may be more convenient for a desldop eebinet arrangement, but for cabinet lacks fitted with ventilation filtering. the fan eon be medlenimlly reversed end for end, and remountert so thatthefan forces airthrough the heelslnk, fremwhidrlhewamled airexhausl leaves the diesels through the front panel perforations. Fuses-acme: Dee12,1990 30-1 10W VHFAmplltlsr LOWPOWERlNTERNALLY DIPLEXED TRANSMITTER CHASSIS Amemusmismuedonmhemhkmmngnmpemmmeanbesampbi lfmistamperatum should masspastmmppommmmmm‘mmiehBWCJsmwlepmwbmkm mnoddng drwitofmmsnmroru'ansmur. The interlock diam ultimately commune power supplyte unemplifier,andMapmsupplywilmrshreshmdownmdmmalnmmurfln‘nheauinkeoolsmd Mommasdouagah. Theehassisiswimdamdngmoneofmawinngdiaqmmsrwnonthurssz. Chass'spanslstsaapmvldedmmelastpagesofwsmanualThedmdmnfiersonmeassenuydmdng Whmwmwmwhmm 40021686xmeansms1ghe assembrymnbeanyoneofmealishd above.whera’¥'denotssmegmup. masseumm Dee. 121993 30-2 wwquAnuifiu
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