BZ5MXD10UDigital Television 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 January 3, 2006 Andrew Leimer Office of Engineering and Technology Re: FCC ID BZ5MXD10U Correspondence Reference number 30181 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

BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Exterior Photo Front Rear

BZ5MXD10U Application for FCC Certification 10W Digital Television Translator FCC Label/Label Location

BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Interior Photo

BZ5MXD10U 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 MXD10U 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 MXD10U consists of three components: a 1RU RegenT Transcoder unit which receives processes and remodulates the signal, a 3 RU 10W RF amplifier, and an output filter. The power supply and amplifier employ integral cooling fans. Depending on the specific application of the translator, the filter is either a simple mask type filter of a stringent mask type filter. With the exception of the output emission mask response, all other performance parameters as detailed in this report are identical for either type of filter. The 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.

BZ5MXD10U 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 MXD10U translator. Since the amplifier is broadband, 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. 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 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. Generally, a breaker that is rated for across-the-line motor starting will be found to be satisfactory. Also, connect the power cable that connects the power supply to the amplifier. This is the nine-wire cable supplied with the amplifier. 3. Switch `ON’ the power supply circuit breaker. Depress the power supply `ON’ push button switch. The two LEDs marked INTRLK and TEMP should be lighted, and the amplifier should be operating and the cooling fans on both the power supply and 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): BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Simple Mask Filter: Bandpass Response BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Simple Mask Filter: Return loss BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Stringent Mask Filter: In band Response BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Parts List and Tune-up Procedure Stringent Mask Filter: Return loss LineTpComponentDescriptionIDQtyUM TotalRev 11940D2238ASSEMBLY DRAWING R-30EA0 110540D2234P1FRONT PANEL R-31EA1 111540D2235P1CHASSIS R-21EA1 113540D2236P1REAR PANEL R-31EA1 115540D2237P1TOP COVER R-11EA1 117140D2239G1HEATSINK ASSY R-51EA1 21940D2239P1ASSEMBLY DRAWING R-20EA0 210540D2233P1HEATSINK ADD EXTRUSION R-41EA1 212121B1473G1FRONT END (FOR DTV DRIVER) R-81EA1 31921B1473A1ASSEMBLY DRAWING R-5.10EA0 39911A1354SCHEMATIC R-2.10EA01 310421B1473P1PCB FRONT END DRIVER R-31EA1 311521B1366P1SHIELD FRAME COVER R-21EA11 312521B1516P1SHIELD FRAME R-21EA11 313521B1481P1MOUNTING PLATE R-21EA11 314521B1480P1SPACER PLATE R-31EA11 31551206C220J1GACCAP, 22.0 PF 50V CHIPC11EA1 31651206C220J1GACCAP, 22.0 PF 50V CHIPC21EA1 31751206CG101J9BCAP 100p CERAMIC CHIPC31EA 1 318512062R102K9BCAP 1n 50V PHILIPSC41EA 1 319512062R103K9BCAP 10nF CERAMIC CHIPC51EA 1 320512062R104K9BCAP 100nF 10% 50VC61EA 1 321512062R104K9BCAP 100nF 10% 50VC71EA 1 322512062R103K9BCAP 10nF CERAMIC CHIPC81EA 1 323512062R102K9BCAP 1n 50V PHILIPSC91EA 1 32451206CG101J9BCAP 100p CERAMIC CHIPC101EA 1 32551206CG101J9BCAP 100p CERAMIC CHIPC111EA 1 326512062R102K9BCAP 1n 50V PHILIPSC121EA 1 327512062R103K9BCAP 10nF CERAMIC CHIPC131EA 1 328512062R104K9BCAP 100nF 10% 50VC141EA 1 329512062R104K9BCAP 100nF 10% 50VC151EA 1 330512062R103K9BCAP 10nF CERAMIC CHIPC161EA 1 331512062R104K9BCAP 100nF 10% 50VC171EA 1 332512062R103K9BCAP 10nF CERAMIC CHIPC181EA 1 333512062R104K9BCAP 100nF 10% 50VC191EA 1 33451206CG101J9BCAP 100p CERAMIC CHIPC201EA 1 33551206CG101J9BCAP 100p CERAMIC CHIPC211EA 1 336512062R102K9BCAP 1n 50V PHILIPSC221EA 1 337512062R103K9BCAP 10nF CERAMIC CHIPC231EA 1 338512062R104K9BCAP 100nF 10% 50VC241EA 1 3395PCT10/35DKCAP 10uf 35V 10% TANTC251EA 1 3405NACZ151M35V8X10.8CAP 150U 35V 20%C261EA1 3415PCT47/10DMCAP 47uF 10V 20% TANTC271EA16 34559C12063A3901JLRESISTOR 3K9 1/4W 5% CHIPR11EA 1 34659C12063A3901JLRESISTOR 3K9 1/4W 5% CHIPR21EA 1 34759C12063A1000JLRESISTOR 100 OHMS 1/4W 5%R31EA 1 34859C12063A1001JLRESISTOR 1K 1/4W 5% CHIPR41EA 1 34959C12063A2001JLRESISTOR 2K 1/4W 5% CHIPR51EA 1 3505RFP-10-100TVCRES 100 OHM 20WRF LOAD 5%R61EA1 35159C12063A51R0JLRESISTOR 51R 1/4W 5% CHIPR71EA 1 35259C12063A51R0JLRESISTOR 51R 1/4W 5% CHIPR81EA 1 Level 35359C12063A5101JLRESISTOR 5K1 1/4W 5% CHIPR91EA 1 35459C12063A5101JLRESISTOR 5K1 1/4W 5% CHIPR101EA 15 35559C12063A2702JLRESISTOR: 27K CHIPR111EA 1 35659C12063A5101JLRESISTOR 5K1 1/4W 5% CHIPR121EA 1 35859C12063A5101JLRESISTOR 5K1 1/4W 5% CHIPR141EA 1 35953224J1-103ERESISTOR 10K POTRV11EA1 36053224J1-102ERESISTOR 1K POTRV21EA1 36159C12063A10R0JLRESISTOR 10R 1/4W 5% CHIPR101EA 15 36351F1304-3S/M COUPLERHY11EA1 36451F1304-3S/M COUPLERHY21EA1 3675PI-810PIN DIODE AT. KDI PI-810-21EA1 3695MMBT2222ALT1TRANSISTOR, MOTOROLA "1P"Q11EA 1 3725MHL-8118IC MOTOROLA SPR 05-004 MHW9182U11EA14 3735LM358DIC DUAL OP AMP SOIC 8 MOTU21EA 1 3745MC78M12CDTIC SEE 78M12CDTU31EA1 3755MC78L05ACDIC REGULATOR 100mA SOIC-8U41EA1 3795BB811DIODE VARACTORCR11EA 1 3805BB811DIODE VARACTORCR21EA 1 3815HSMS-2850DIODE HEWLETT PACKARDCR31EA12 38351280A-1TURRET PINTP11EA 15 38451280A-1TURRET PINTP21EA 15 38551280A-1TURRET PINTP31EA 15 387524MCX501-10/111STRT BKHEAD CONNCTR 50^ SHUNER2EA 21 38852499003X5S0152MCAP FEEDTHRU 1500u3EA 31 389921B2313LABEL - TOP COVER0EA08 214121B1324G…

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BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Simple Mask) BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Simple Mask) BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Stringent Mask) BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Spurious Emissions (Stringent Mask)

BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Cabinet Radiation BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Cabinet Radiation

BZ5MXD10U 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 65030735565030740065030731857040.00087712 -20 65031066265031066265031066223600.00036290 -10 6503125896503125896503125894330.00006658 0 6503133596503133596503133593370.00005182 10 65031407265031407265031407010500.00016146 20 65031302265031302265031302200.00000000 30 65031175765031176765031175012720.00019560 40 65031071165031075065031072123110.00035537 50 65031003765031003765031003729850.00045901 60 65031077565031077565031077522470.00034553 Test Setup for Frequency Stability measurements. Test Equipment List: Thermostatically controlled Temperature Chamber – Cincinnati Sub-Zero HP 8594E Spectrum Analyzer S/N: 3303A00399

BZ5MXD10U 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: 43.5dB Power: 40.0dBm Power = 30.2 Watts

BZ5MXD10U Application for FCC Certification 10W Digital Television Translator Attenuation Characteristics

BZ5MXD10U 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