BZ5MXD10VDigital Television Broadcast Translator

LARCAN U.S. Tel: 1-303-665-8000 Fax: 1-303-673-9900 Canada Tel: 1-905-564-9222 Fax: 1-905-564-9244 www.larcan.com Email: [email protected] 228 Ambassador Drive Mississauga ON Canada L5T 2J2 March 24, 2006 Andrew Leimer Office of Engineering and Technology Re: FCC ID BZ5MXD10V Correspondence Reference number 30588 Dear Sir: With regards to our request for confidentiality, we formally request confidentiality for the service manuals and schematics documents submitted as part of this application. While these documents do not contain design-specific information, they are typically purchased as part of the product and are not available in the public domain. Sincerely, John Tremblay V. P. Engineering

LARCAN U.S. Tel: 1-303-665-8000 Fax: 1-303-673-9900 Canada Tel: 1-905-564-9222 Fax: 1-905-564-9244 www.larcan.com Email: [email protected] 228 Ambassador Drive Mississauga ON Canada L5T 2J2 March 24, 2006 Andrew Leimer Office of Engineering and Technology Re: FCC ID BZ5MXD10V Correspondence Reference number 30588 Dear Sir: With regards to our request for confidentiality, we formally request confidentiality for the service manuals and schematics documents submitted as part of this application. While these documents do not contain design-specific information, they are typically purchased as part of the product and are not available in the public domain. Sincerely, John Tremblay V. P. Engineering

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Exterior Photo Front Rear

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator FCC Label/Label Location

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Interior Photo

BZ5MXD10V Application for FCC Certification 10 Watt Digital Television Translator Operational Description: This application requests certification for a 10 Watt Digital Television Translator. The intended use of this digital translator is to rebroadcast a television relay station or other legal source of ATSC digital television signal. The MXD10V is a solid state digital regenerative translator designed to receive over-the- air ATSC signals, converting the RF signal to baseband digital format, processing the signal to eliminate noise, and then re-modulating, converting to the new broadcast channel, amplifying and filtering the signal before it is applied to the transmit antenna. The receive section of the translator and the output modulation format conform with FCC Part 73.682(d), ATSC Digital Television Standards. The MXD10V consists of three components: a 1RU RegenT Transcoder unit which receives processes and remodulates the signal, a 3 RU 10W RF amplifier and power supply, and an output filter. The power supply and amplifier employ integral cooling fans. The output filter along with additional filtering within the amplifier provide more than 85dB of attenuation within the GPS Frequency bands (1164-1240 MHz and 1559-1610 MHz). Note that since these products are frequency agile in that they can be field tuned for different channels within the UHF television band, each unit has this filtering included, regardless of the channel. Wiring, shielding and construction are in accordance with accepted principles of good engineering practice. The translator’s construction is such that all hazardous components are enclosed or protected against accidental contact by operating personnel.

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure: The following is the procedure for changing the channel of the MXD10V translator. Channel change involves retuning of the output filter and recalibration of the output meter. The amplifier meter was calibrated to read 100% (top scale) at full power and at the channel specified when the transmitter was tested at the factory. If the amplifier is to operate at a channel other than that of the factory test channel, the metering is going to require re-calibration. Refer to the transmitter service manual for the specific calibration procedures. The power meter setting is a channel dependent calibration. 1. Connect the transmitter output to a 50 ohm dummy load or the antenna. The transmitter uses a 50Ω type N connector for its output. An inline wattmeter with a selection of detector elements suitable for digital signals should be used for measurements. 2. Connect the 115VAC mains input. This AC circuit should be rated for 15 amperes, and should be supplied through a slow-tripping breaker or time delay fuse.. 3. Switch `ON’ the amplifier. The two LEDs marked INTRLK and TEMP should be lighted, and the amplifier should be operating and the cooling fans the amplifier should be running. 4. The amplifier is equipped with AGC and VSWR protections which have been factory set. To set the correct level out of the channel processor or exciter, switch OFF the amplifier AGC (switch down) then adjust the Transcoder level control so that the output of the amplifier is 110%. Switch ON the AGC and front panel meter should read 100%. If not, adjust the front panel pot labeled AGC LEVEL for 100% indication. The output filter must be retuned as per the frequency response sweeps attached (note: two different tunings depending on the type of filter used): BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Filter: Bandpass Response BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Filter: Return loss LineTpComponentDescriptionRevIDQtyUMTotalRCh 11940D2168ASSEMBLY DRAWING R-2R-20EA0 110540D2165P1FRONT PANEL R-0R-01EA1 111540D2167P1CHASSIS R-2R-21EA1 112130C1899G1HEATSINK ASSY HB R-7R-71EA1 21930C1899ASSEMBLY DRAWING R-2R-20EA0 24586350CONNECTOR BNC BULKHEAD1EA17 2552001-5032-00CONNECTOR1EA17 285AGC7FUSE 7A 32VF1-F22EA2 210110A1453G4PCB ASSY PHASE SHIFTER R-17R-171EA1 32910A1453SHT6ASSEMBLY DRAWING R-8R-80EA017 34910A1453ASM DWG/PATT/SILKSCRN/SCH R-7R-70EA0 36510A1453P1PCB PHASE SHIFTER R-5R-51EA1 37910A1453ASM DWG/PATT/SILKSCRN/SCH R-7R-70EA0 38910A1453ASM DWG/PATT/SILKSCRN/SCH R-7R-70EA0 39910A1453ASM DWG/PATT/SILKSCRN/SCH R-7R-70EA0 311910A1453SHT9ASSEMBLY DRAWING R-5R-50EA017 312910A1453 SH10SCHEMATIC R-0R-00EA0 3145B1570-B-1/4-05SPACER TIN PLATED4EA4 31851280BTURRET1EA 1 3275681-09478CAP 4p7 100V CERAMICC51EA1 3285030-38108CAP 1u 63V ELECTC61EA1 3295030-38108CAP 1u 63V ELECTC71EA1 3305630-09472CAP 4700p 100V CERAMICC81EA1 3315630-09472CAP 4700p 100V CERAMICC91EA1 3325630-09472CAP 4700p 100V CERAMICC101EA1 3335630-09472CAP 4700p 100V CERAMICC111EA1 3395PR37J 300 OHMSRES 1.6W 5% 300 SPR 05-064R41EA1 3475MHW6185HYBRIDU21EA1 3485MC7824CTIC VOLT REG TTC # 8220-017U31EA1 3505MWA330IC RF AMPU41EA1 361510A212P1COIL 7t R-6R-6L31EA1 362510A212P1COIL 7t R-6R-6L41EA1 211120B1226G1PCB ASSY 250W OUTPUT R-7R-71EA1 31920B1226P1ASSEMBLY DRAWING R-7R-70EA0 310420B1224P1PCB OUTPUT BD HB 250W AMP R-3R-31EA1 415250-GX0600-55110.060" +/- 0.002" 1oz 36X4811IN11 311920B1225P.C. PATTERN R-3R-30EA0 31351A1120-05FUSE CLIP2EA2 317930C1057SCHEMATIC R-4R-40EA0 31952062-0000-00RECEPTACLE SEE 50-651-0000-311EA1 3215UT-85C TP 50 ^COAX CABLE 50 OHM TIN PLATED0FT0 3235100B-102-JP50XCAPACITOR: CHIP 1000pfC81EA1 32452222-119-28479CAP 47u 63V ELECT PREFERREDC91EA1 3255100B-102-JP50XCAPACITOR: CHIP 1000pfC101EA1 32652222-119-28479CAP 47u 63V ELECT PREFERREDC111EA1 3275100B-680-JP500XCAP 68p 500V CHIP1EA1 3285100B-680-JP500XCAP 68p 500V CHIP1EA1 3295175B-270-JMS500CAP 27p 500V CHIP SEE NOTES1EA1 3305175B-270-JMS500CAP 27p 500V CHIP SEE NOTES1EA1 33155051-3105KCAP 1uf 100V POLYC11EA1 33255051-3105KCAP 1uf 100V POLYC71EA1 333510A571P7COIL 3t 3/16" I.D. #20L71EA1 334510A1135P1COIL HB OUTPUT FAB IN HOUSE R2R2L91EA1 335510A571P7COIL 3t 3/16" I.D. #20L41EA1 212120B1222G2PCB ASSY 250W INPUT R-12R-121EA1 310420B1220P1PCB INPUT HB R-2R-21EA1 415250-GX0600-55110.060" +/- 0.002" 1oz 36X4815IN15 311920B1221P.C. PATTERN0EA0 31351A1119-05FUSE CLIP2EA2 Level LineTpComponentDescriptionRevIDQtyUMTotalRCh Level 31552035B1TURRET RUSH # 2524200440000702EA2 317930C1057SCHEMATIC R-4R-40EA0 32052064-0000-00CONNECTOR SUB 50-653-0000-31J11EA1 3215UT-85C TP 50 ^COAX CABLE 50 OHM TIN PLATED0FT0 3225630-09102CAPACITORC231EA1 3235630-09102CAPACITORC241EA1 32452222-119-28479CAP 47u 63V ELECT PREFERREDC21EA1 3255100B-820-JP500XCAP 82p 500V CHIPC31EA1 3265100B-330-JP500XCAP 33p 500V CHIPC41EA1 3275100B-330-JP500XCAP 33p 500V CHIPC51EA1 32852222-119-28479CAP 47u 63V ELECT PREFERREDC61EA1 3295021-18102CAP 1000u 63V ELECTC161EA1 33051N5357AZENER DIODE SAME AS IN5357BCR11EA1 33151N5357AZENER DIODE SAME AS IN5357BCR21EA1 33353299W-1-103POT 10KR11EA1 3345SFR25H392JRES, 1/2W 5% 3K9R21EA1 3355SFR25H5R1JRES, 1/2W 5% 5R1R1R31EA112 33653R152P102JRES 1/4W 5% 1KR41EA1 3375SFR25H5R1JRES, 1/2W 5% 5R1R1R51EA112 33853R152P102JRES 1/4W 5% 1KR61EA1 33953299W-1-103POT 10KR71EA1 3405SFR25H392JRES, 1/2W 5% 3K9R81EA1 34153R152P302JRES 1/4W 5% 3KR91EA1 34253R152P302JRES 1/4W 5% 3KR101EA1 3435MSC154KTHERMISTORRT11EA1 3445MSC154KTHERMISTORRT21EA1 213520B1500P1TYPE 3156 THERMOSTAT R-7R-71EA1 2145SRF3943-2TRANSISTOR1EA1 2155RH25-50 OHMRES 25W 1% 50 SEE 8154-7531EA1 216510A1564P1TRANSISTOR CLAMP R-3R-31EA1 217510A1566P1PRESSURE PLATE CLAMP R-3R-31EA1 218530C1868P1HEATSINK R-1R-11EA1 113540D2189P1TOP COVER FOR MX10V R-2R-21EA1 114530C1986P1REAR PANEL R-3R-31EA1 115520B2195P1CPLR MTG BR…

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BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Simple Mask) BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Stringent Mask) BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Spurious Emissions BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Spurious Emissions (GPS Frequencies)

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Cabinet Radiation BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Cabinet Radiation

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Frequency Drift versus Temperature Readings Calculation Pilot Frequency Deviation % from ref. Temp (°C) VAC= 102120138 (Hz) -30 17430925017430922517430922529870.00171359 -20 17431020017431020017431020020120.00115425 -10 17431107517431107517431107511370.00065228 0 1743115751743115751743115756370.00036544 10 1743120751743120751743120751370.00007859 20 17431221217431221217431221200.00000000 30 174312135174312137174312137770.00004417 40 1743121001743121121743121121120.00006425 50 174312275174312275174312275630.00003614 60 1743125501743125501743125503380.00019390 Test Setup for Frequency Stability measurements. Test Equipment List: Thermostatically controlled Temperature Chamber – Cincinnati Sub-Zero HP 8594E Spectrum Analyzer S/N: 3303A00399

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Power Measurements The translator’s power meter circuit uses a detected sample from a coupler on the output. An averaging detector circuit provides the DC level to drive the translator’s output level meter. The translator was connected to a test load through a calibrated directional coupler. The spectrum analyzer’s “Channel Power” function was used to measure the average power level of the signal as sampled through the directional coupler. (see Fig.) Measured power: -3.5dBm Coupling loss: 36.5dB Power: 40.0dBm Power = 10 Watts

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Attenuation Characteristics

BZ5MXD10V Application for FCC Certification 10W Digital Television Translator Test Setup Photo: Block Diagram of Test Setup: Test Equipment: Instrument Make/Model Serial # Last Cal. Date. Spectrum Analyzer HP8594E 3303A00399 Dec. 3, 2003 Signal Analyzer Tektronix RFA300 B010126 Feb. 6, 2003 RF Network Analyzer Agilent 8712ET US40371604 Mar. 6, 2000