QH5TAV250HVHF Television Broadcast Transmitter

TAV-250 ANALOG TV POWER AMPLIFIER OPERATING MANUAL TAV-250 You’ve already unpacked it, haven’t you? You’ve unpacked it and plugged it in and turned it on and fiddled with the knobs. No? Okay, good. Please take a few minutes to read the manual and familiarize yourself with your new Technalogix power amplifier. We believe that this manual, and of course our equipment, should be everything you need to get on the air with superb broadcast quality video. We understand that a capable and confident user will get the most out of our product and we have made every attempt to educate readers of all technical levels. If there is something that is not clear, or you require further information, please do not hesitate to contact us and we’ll be glad to help out. Technalogix Ltd. #4, 8021 Edgar Industrial Place Red Deer, Alberta, Canada T4P 3R3 Phone: 403.347.5400 Fax: 403.347.7444 URL: www.technalogix.ca Email: [email protected] [email protected] We truly appreciate that you have chosen us as your television broadcast system supplier. Happy viewing. TAV-250 Table of Contents SECTION I- SAFEGUARDS.................................................................................... I-1 S AFETY AND FIRST AID......................................................................................... I-2 O PERATING SAFEGUARDS..................................................................................... I-3 SECTION II - WARRANTY................................................................................... II-1 SECTION III - OVERVIEW................................................................................... III-1 S TANDARD FEATURES......................................................................................... III-1 P RINCIPLE OF OPERATION................................................................................... III-2 BLOCK DIAGRAM................................................................................................ III-3 SPECIFICATIONS................................................................................................. III-5 SECTION IV - RF COMPONENTS........................................................................ IV-1 AMPLIFIER PALLETS............................................................................................ IV-1 DIRECTIONAL COUPLER...................................................................................... IV-4 I SOLATOR........................................................................................................... IV-4 FILTER............................................................................................................... IV-4 SECTION V - POWER SUPPLY SECTION............................................................... V-1 SECTION VI - MONITOR AND CONTROL SYSTEM................................................. VI-1 C ONTROL BOARD OVERVIEW (INSIGHT) ................................................................ VI-1 USER INTERFACE MODULE.................................................................................. VI-1 C OUPLER CONDITIONING MODULE....................................................................... VI-2 RF CONDITIONING MODULE................................................................................. VI-3 T EMPERATURE SENSOR MODULE........................................................................ VI-4 TXNET MODULE.................................................................................................. VI-5 R EMOTE PORT................................................................................................... VI-6 FAULT SHUTDOWN.............................................................................................. VI-7 B ILL OF MATERIALS............................................................................................ VI-8 S CHEMATICS.................................................................................................... VI-10 SECTION VII - MECHANICAL SECTION............................................................... VII-1 TAV-250 SECTION VIII - INSTALLATION......................................................................... VIII-1 BUILDING RECOMMENDATIONS.......................................................................... VIII-1 HEATING AND COOLING REQUIREMENTS............................................................. VIII-2 E LECTRICAL SERVICE RECOMMENDATIONS......................................................... VIII-3 ANTENNA AND TOWER RECOMMENDATIONS........................................................ VIII-4 SHELTER SECURITY.......................................................................................... VIII-5 U NPACKING AND INSPECTION............................................................................. VIII-6 LOCATION AND FUNCTION OF CONTROLS AND CONNECTORS (TAV-250 POWER AMPLIFIERS)..................................................................................................... VIII-7 I NITIAL HOOK UP............................................................................................ VIII-11 SECTION IX - OPERATING PROCEDURE.............................................................. IX-1 SECTION X - MAINTENANCE AND TROUBLESHOOTING.......................................... X-1 TROUBLESHOOTING............................................................................................. X-2 TAV-250 I-1 Section I - Safeguards General Safeguards This section is written as a general guide to keep all 5 fingers on your hand and is intended for those having previous knowledge and experience with these kinds of equipment. It is not intended to contain a complete statement of all safety precautions, which should be observed by personnel using this or other electronic equipment. DOCUMENTATION - Read, retain and follow instructions before operating the equipment. There is a lot of useful information in the manual, and besides, we spent a lot of time w…

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Technalogix – the company that can! June 27, 2007 Attestation Statement: TAV-250H Tests were conducted on production models of the equipment on location at Technalogix: #4, 8021 Edgar Industrial Place Red Deer, Alberta Canada T4P 3R3 403.347.5400 ph 403.347.7444 fx All tests were carried out on representative channels in the VHF III bands in accordance with FCC Part 73 and Part 74 and Industry Canada BESP-100 and BETS-4. The results in the submitted documentation show that the equipment meets or exceeds the required specifications. Should you have any questions, please do not hesitate to contact Technalogix: Bob Gullon President and CEO [email protected] Aaron Sivacoe, P.ENG Technical Director [email protected] #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

III-3 Block Diagram The RF signal enters through the RF Input connector on the power amplifier enclosure from the modulator or processor. It then passes through an RF attenuator to limit the output power level of the power amplifier and to help buffer any transients that may come into the power amplifier. After attenuation, the signal gets preamplified using a driver pallet before the signal passes into a final pallet for final amplification. The signal then passes through an isolator. Finally, the signal gets monitored with a dual directional coupler before heading out to an antenna for broadcast. TAV-250 A=+18dB typ. low band VHF A=+15dB typ. high band VHF A=+40dB typ. low band VHF A=+34dB typ. high band VHF Attenuation TO WATTMETER AND ANTENNA VHFTV400-VHF FINAL RF INPUTRF OUT VHFTV25-VHF DRIVER V V DIRECTIONAL COUPLER V CIRCULATOR TERMINATION 50 OHM U3 Bandpass Filter TAV-250 Block Diagram Date: May 25, 2005Page: 1 of 1 RevID TAV-250

Technalogix – the company that can! June 27, 2007 Cover Letter: TAV-250H This report is in support of an application by Technalogix Ltd. for certification of transmitting equipment used for VHF Band III television systems (174-216 MHz or channels 7 through 13). Specifically, Technalogix is requesting certification of the Technalogix TAV-250 VHF Band III television transmitter. The TAV-250 Band III supplies a 250-watt peak video signal in addition to 10% aural power on any of the VHF television channels 7 through 13. Additionally, the control system allows the user to run 110% of rated power (275-watts peak) before the overdrive monitor shuts the system down. The video and audio are amplified with a common amplifier chain. The emission designators based on FCC Part 74 transmitters are 5M75C3F (for visual) and 250KF3E (for aural). Should you have any questions, please do not hesitate to contact Technalogix: Bob Gullon President and CEO [email protected] Aaron Sivacoe, P.ENG Technical Director [email protected] #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

Technalogix – the company that can! EXTERNAL CONSTRUCTION Front View: #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca Technalogix – the company that can! Back View:

Technalogix – the company that can! ID Label: #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca Model Serial Freq. FCC IC www.technalogix.ca MADE IN CANADA 3803A-TAV250H QH5TAV250H TAV-250H Technalogix – the company that can! ID Label Location: Model Serial Freq. FCC IC www.technalogix.ca MADE IN CANADA 3803A-TAV250H QH5TAV250H TAV-250H

Technalogix – the company that can! TAV-250H CONSTRUCTION POTOGRAPHS Amplifier Pallet Construction: VHFTV-25-H (component side with all components): VHFTV-25-H (no components or tracks on solder side): #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca Technalogix – the company that can! P400-VHF-H (component side with all components): P400-VHF-H (no components or tracks on solder side): Technalogix – the company that can! Internal Construction: Internal Construction (amplifier pallet lids removed):

III-2 Principle of Operation The TAV-250 power amplifier supplies a 250-watt peak video signal with an aural carrier level 10 to 13 dB below visual carrier (dBc) on any of the VHF television channels 2 through 13. Please note that channel selection must be made at time of order, as the transmitter or translator is calibrated and tested to the channel requested and is not field tuneable. The TAV-250 power amplifier is a modular solid-state 250-watt broadcast amplifier utilizing readily available RF components wherever possible, thus enhancing the serviceability of the equipment. The TAV-250 is comprised of a 25 watt driver pallet in addition to a 400 watt final pallet that provides 250 watts of peak visual power in addition to the aural carrier power. The TAV-250 features ultra linear amplification with amplifier modules that are stable for high reliability and long service life. TAV-250

Technalogix – the company that can! June 27, 2007 To Whom it May Concern, This letter certifies that there is no internal tuning that needs to be completed in the Technalogix TAV-250. Should require any further information, do not hesitate to contact us: Aaron Sivacoe Technical Director [email protected] Bob Gullon President and CEO [email protected] Best regards, Aaron Sivacoe #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

Technalogix – the company that can! June 27, 2007 Parts List Statement: TAV-250H The parts list for the TAV-250H is found within the User’s Manual. Should you have any questions, please do not hesitate to contact Technalogix: Bob Gullon President and CEO [email protected] Aaron Sivacoe, P.ENG Technical Director [email protected] #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

Technalogix – the company that can! June 27, 2007 To Whom it May Concern, This letter certifies that there was no measurable cabinet radiation from the TAV-250H, even at 0.5 meters. Measurements were conducted as per Industry Canada BETS-4, section 6.6 and FCC Part 74.736. All measurements were well below 60dBc including those of intermodulation products, harmonics (up to the tenth harmonic), and all other spurious emissions. Aaron Sivacoe, P.ENG Technical Director [email protected] Bob Gullon President and CEO [email protected] Best regards, Aaron Sivacoe #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

Technalogix – the company that can! June 27, 2007 Schematics Statement: TAV-250H The schematics for the TAV-250H are found within the User’s Manual. Should you have any questions, please do not hesitate to contact Technalogix: Bob Gullon President and CEO [email protected] Aaron Sivacoe, P.ENG Technical Director [email protected] #4 – 8021 Edgar Ind. Place, Red Deer, AB T4P 3R3 Ph: (403) 347-5400 [email protected] Fax: (403) 347-7444 www.technalogix.ca

TAV-250H TEST REPORT S/N:08170661                             Preparedby: AaronSivacoe,P.ENG    RainierKong Date:   June27,2007    2 Contents Contents____________________________________________________________________ 2 Test Equipment______________________________________________________________ 3 Performance Specifications ____________________________________________________ 4 Visual Power Output Rating ___________________________________________________ 4 Visual Power Adjustment Capability ____________________________________________ 5 Aural Power Output Rating____________________________________________________ 7 Carrier Frequency Tolerance___________________________________________________ 9 Visual Frequency Response __________________________________________________ 12 Intermodulation Distortion ___________________________________________________ 15 Spurious Emissions _________________________________________________________ 17 Modulation _______________________________________________________________ 19 K Pulse to Bar (Kpb) Rating __________________________________________________ 20 2T Pulse K (K2T) Rating ____________________________________________________ 21 Chrominance-Luminance Gain Inequality _______________________________________ 22 Chrominance-Luminance Delay Inequality ______________________________________ 23 Differential Gain Distortion __________________________________________________ 24 Differential Phase Distortion__________________________________________________ 25 Group Delay Response ______________________________________________________ 26 Horizontal Timing__________________________________________________________ 27 Audio Amplitude Frequency Response__________________________________________ 28      3 Test Equipment Equipment Manufacturer Model Number Serial Number Test Signal Generator Tektronix TSG95 B025497 Test Signal Generator Tektronix 1910 B022706 Spectrum Analyzer Advantest R3162 110301419 Spectrum Analyzer Tektronix 2710 B021677 Waveform Analyzer/Monitor Tektronix VM700A B020283 Radiation Meter Narda 8616 20046 Network Analyzer Agilent 8753ET US39170436 Frequency Counter HP 5343A 2428A01747 Audio Generator HP 209A 1045A06481 Noise and Distortion Meter HP 334A 1551U00970 Coaxial Attenuator (30 dB) Bird 8329-310 258 Coaxial Attenuator (30 dB) Bird 8323 2221 Coaxial Attenuator (6 dB) Weinschel 58-6-43 RF Wattmeter Bird 4304A 0811 RF Wattmeter Bird 4527 500 RF Wattmeter Coaxial Dynamics 81060A 1034 RF Load (10,000 W) Bird 8636-115 231 RF Load (1,200 W) Microwave Devices 611.11 RF Load (600W) Bird 8402 1595 Directional Coupler HP 778D Variable Autotransformer Staco Energy Products 3PN1010 122-0003 8645 Variable Autotransformer General Radio W50HG3 True RMS clamp on meter Tenma 72-6131 96082691 Digital Multi-meter Fluke 189 88800035 Oscilloscope (150 MHz) Tektronix 2445 B021074 Television Demodulator Rhode and Schwarz EFA83 832495/006 Tunable Down Converter Tektronix TDC-10 BO10435 Television Demodulator MSI MSI-320 D-022 Digital Camera Sony DSC-P73 7412902 4 Performance Specifications Visual Power Output Rating Definition:Thevisualpoweroutputratingofthetelevisiontransmittingequipment shall be the peak envelope power. This is also theaverage power measuredduringasynchronizingpulse.  Requirement:Specifiedbythemanufactureras 250 wattspeak. Method:Thevisualcarrierismodulatedwithasyncandblankingsignal.Theaural carrier is not present. An average reading RF wattmeter is placed between the transmitter output (directly on the directional coupler’s N connectoronthebackpanel)andthe505dummyload.Thepeakvisual poweristhemeasuredaveragepowermultipliedbyafactorof1.68.  DuetothelowleveloftheRFOutputsignal,aspectrumanalyzerwas usedtomeasurethevisualoutputrating.  Measurement:Theratedvisualoutputpoweris250 wattspeak.  5 6 Visual Power Adjustment Capability Definition:The peak output power adjustment capability is the manual range by which the peak visual output power can be maintained within predeterminedlimits. Requirement:IndustryCanada–Theequipmentshallbecapableofbeingadjustedto delivertheratedvisualoutputpowerwhentheACinputvoltageis5% aboveorbelowratedvalue.Poweroutputadjustmentoftheequipment shallpermitoperationtoatleast3dBbelowratedpoweroutput[BETS?4, section6.1].  FCC–Thetransmittershallbeadjustableto80%,100%,and110%of peakvisualpowersimplyforthecalibrationofmeters[section73.663]. Exceptasoperatedinareducedpoweroperation,thevisualoutputpower of a TV transmitter or translator must be maintained as near as practicabletotheauthorizedtransmitteroutputpowerandmaynotbe less than 80% nor more than 110% of authorized power [section 73.1560(c)]  Method:Thevisualcarrierismodulatedwithasyncandblankingsignal.Theaural carrier is not present. An average reading RF wattmeter is placed between the transmitter output (directly on the directional coupler’s N connectoronthebackpanel)andthe505dummyload.Thepeakvisual power is the measured average power multiplied by a factor of 1.68. While observing the external wattmeter, the outputpower is varied to ensurethatisadjustableovertheproperranges.  Measurement:Upperlimitofvisualoutputpoweradjustment 110 % Lowerlimitofvisualoutputpoweradjustment 0 %  7 Aural Power Output Rating Definition:The aural carrier power output is the power of the aural transmission section available at the output terminals of the equipment when connectedtothestandardtestload. Requirement:IndustryCanada–Themeasuredauralcarrieroutputshallnotbeless than 10…

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