QH5TAV25HVHF Television Broadcast Transmitter

TAV-25 POWER AMPLIFIER NEW ADVENTURES IN BROADCASTING 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. Table of Contents SECTION I- SAFEGUARDS...............................................................................................I-1 SAFETY AND FIRST AID.....................................................................................................I-2 OPERATING SAFEGUARDS................................................................................................I-3 SECTION II - WARRANTY..............................................................................................II-1 SECTION III - OVERVIEW..............................................................................................III-1 STANDARD FEATURES....................................................................................................III-1 PRINCIPLE 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 FILTER............................................................................................................................IV-4 SECTION V - POWER SUPPLY SECTION......................................................................V-1 SECTION VI - MONITOR AND CONTROL SYSTEM.......................................................VI-1 CONTROL BOARD OVERVIEW (INSIGHT)........................................................................VI-1 USER INTERFACE MODULE............................................................................................VI-1 COUPLER CONDITIONING MODULE................................................................................VI-2 RF CONDITIONING MODULE..........................................................................................VI-3 TEMPERATURE SENSOR MODULE.................................................................................VI-4 TXNET MODULE..............................................................................................................VI-5 REMOTE PORT...............................................................................................................VI-6 FAULT SHUTDOWN.........................................................................................................VI-7 BILL OF MATERIALS.......................................................................................................VI-8 SCHEMATICS................................................................................................................VI-10 SECTION VII - MECHANICAL SECTION......................................................................VII-1 SECTION VIII - INSTALLATION..................................................................................VIII-1 BUILDING RECOMMENDATIONS....................................................................................VIII-1 HEATING AND COOLING REQUIREMENTS....................................................................VIII-2 ELECTRICAL SERVICE RECOMMENDATIONS................................................................VIII-3 ANTENNA AND TOWER RECOMMENDATIONS...............................................................VIII-4 SHELTER SECURITY.....................................................................................................VIII-5 UNPACKING AND INSPECTION......................................................................................VIII-6 LOCATION AND FUNCTION OF CONTROLS AND CONNECTORS (TXV-25 POWER AMPLIFIERS).................................................................................................................VIII-7 INITIAL HOOK UP........................................................................................................VIII-11 SECTION IX - OPERATING PROCEDURE.....................................................................IX-1 SECTION X - MAINTENANCE AND TROUBLESHOOTING...............................................X-1 TROUBLESHOOTING........................................................................................................X-2 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. D…

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Technalogix – the company that can! July 16, 2007 Attestation Statement: TAV-25H 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 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

Technalogix – the company that can! July 16, 2007 Block Diagram Statement: TAV-25H 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 is amplified through the VHFTV-25 driver before the signal passes through a bandpass filter. Finally, the amplified signal passes through a dual directional coupler for monitoring purposes. After the directional coupler, the signal exits the power amplifier enclosure before heading out to an antenna for broadcast. #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! BANDPASS FILTER A=-0.6dB Typ. TAV-25H BLOCK DIAGRAM RF IN VHFTV-25H A=36dB Typ. DIRECTIONAL COUPLER A=-0.05dB RF OUT GAIN COMPENSATION TO WATTMETR AND ANTENNA

Technalogix – the company that can! July 16, 2007 Cover Letter: TAV-25H 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 on channels 7 through 13). Specifically, Technalogix is requesting certification of the Technalogix TAV-25H VHF Band III television transmitter. The TAV-25H Band III supplies a 25-watt peak video signal in addition to 10% of 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 (27.5-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! TAV-25H EXTERNAL CONSTRUCTION Front View: Back 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! ID Label: Actual Size: 2” x 3 ¼” #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 TAV-25H 01020675 187.25 MHz QH5TAV25H 3803A-TAV25H Technalogix – the company that can! ID Label Location: Model Serial Freq. FCC IC TAV-25H 01020675 187.25 MHz QH5TAV25H 3803A-TAV25H

Technalogix – the company that can! TAV-25H 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! Internal Construction: Internal Construction (amplifier pallet lids removed):

Technalogix – the company that can! July 16, 2007 Operational Description: TAV-25H The TAV-25H power amplifier supplies a 25-watt peak video signal with an aural carrier level of 10 to 13 dB below visual carrier (dBc) on any of the VHF television channels 7 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 tunable. The TAV- 25H power amplifier is a modular solid-state 25-watt broadcast amplifier utilizing readily available RF components wherever possible, thus enhancing the serviceability of the equipment. The TAV-25H is comprised of a 25 watt pallet that provides 25 watts of peak visual power in addition to the aural carrier power. The TAV-25H features ultra linear amplification with amplifier modules that are stable for high reliability and long service life. #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! July 16, 2007 To Whom it May Concern, This letter certifies that there is no internal tuning that needs to be completed in the Technalogix TAV-25H. 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! July 16, 2007 Parts List Statement: TAV-25H The parts list for the TAV-25H 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! July 16, 2007 To Whom it May Concern, This letter certifies that there was no measurable cabinet radiation from the TAV-25H, 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! July 16, 2007 Schematics Statement: TAV-25H The schematics for the TAV-25H 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-25H TEST REPORT S/N:01020675                           Preparedby:AaronSivacoe,P.ENG RainierKong Date: July16,2007  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:The visual power output rating of the television transmitting equipment shall be the peak envelope power. This is also theaverage power measuredduringasynchronizingpulse.  Requirement:Specifiedbythemanufactureras 25 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)andthe504dummyload.Thepeakvisual poweristhemeasuredaveragepowermultipliedbyafactorof1.68.  DuetothelowleveloftheRFOutputsignal,aspectrumanalyzerwas usedtomeasurethevisualoutputrating.  Measurement:Theratedvisualoutputpoweris 25 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 deliver therated visual output power when the AC input voltage is 5% 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 practicable to the authorized transmitter output power and may not be 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)andthe504dummyload.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–Themeasuredauralcarrieroutputshallnotbele…

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