PW2DTC25U25 WATT ATSC TRANSCODER

DTC25U TRANSCODER INSTRUCTION MANUAL PINEAPPLE TECHNOLOGY, INC PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual TABLE OF CONTENTS Section l --- SAFETY NOTICES .................................................................................... 2 ** READ THIS SECTION BEFORE INSTALLATON * * Secton ll --- TRANSCODER SPECIFICATIONS ............................................................... 3 Section lll --- TRANSCODER INSTALLATION ............................................................... 4 Section lV --- TRANSCODER TURN-ON ..................................................................... ... 5 Section V --- THEORY OF OPERATION A. Introduction ..........................................................................................8 B. XC100LC Regenerative Transcoder Module and Up Converter........................ ...8 C. LTX Mainframe Assembly ........................................................................9 D. BPUD100 Digital Mask Filter..................................................................... ...9 E. Low Pass Filter (Optional)........................................................................ ...9 SECTION Vl --- SCHEMATIC AND PARTS LISTS A. DTC25U...................................................................................................... 10 B. LTX Mainframe Assembly........................................................................ ...12 C. BPUD100Digital Mask Filter..................................................................... ...14 D. Low Pass Filter....................................................................................... 15 SECTION Vll --- RECOMMENDED ROUTINE MAINTENANCE ....................................... ... 16 SECTION Vlll --- ADJUSTMENTS AND TUNING ............................................................ 17 SECTION lX --- PROBLEM SOLVING / TROUBLESHOOTING ....................................... ... 18 SECTION X --- WARRANTY ....................................................................................... 20 Section I Safety Notices PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual l --- SAFETY NOTICES l ---SAFETY NOTICES ** READ THIS SECTION BEFORE INSTALLATION ** SEVERE ELECTRICAL SHOCK OR BURNS MAY OCCUR IF THIS EQUIPMENT IS USED IMPROPERLY. NEVER WORK ON THIS EQUIPMENT ALONE. ALWAYS HAVE ANOTHER PERSON PRESENT WHILE WORKING ON ELECTRICAL CIRCUITS OR MOVING EQUIPMENT. COMMUNICATIONS TO EMERGENCY SERVICES SHOULD BE AVAILABLE AT ALL TIMES. BEFORE CONNECTING THIS EQUIPMENT TO ANY AC ELECTRICAL SOURCE READ THE SECTION ON INSTALLATION. ALL ELECTRICAL WIRING FOR THIS EQUIPMENT MUST BE PERFORMED BY QUALIFIED ELECTRICIANS. ALL WIRING MUST BE COMPLIANT WITH LOCAL ELECTRICAL CODES. POWER AMPLIFIERS AND SUPPLIES ARE HEAVY. TO INSTALL THIS EQUIPMENT IN RACKS USE TWO (2) PERSONS TO AVOID POSSIBLE INJURIES. NEVER OPEN THE CABINET ENCLOSURE OR UNPLUG CABLES OR WIRES WHILE THIS EQUIPMENT IS OPERATING. ALL SERVICE WORK MUST BE PERFORMED BY QUALIFIED TECHNICIANS ONLY . IF ONE IS NOT AVAILABLE LOCALLY, CONTACT PINEAPPLE TECHNOLOGY, INC. FOR A LIST IN YOUR AREA. Page 2 Section II Transmitter Specifications THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual II – TRANSCODER SPECIFICATIONS II – DTC25U SPECIFICATIONS Power Output .............................. 25W Average RF Output Impedance..................... 50 ohms Frequency Range........................... 470 – 806 MHz Frequency Stability........................ ± 1,000 Hz Error Vector Magnitude................... 4% Maximum Digital Signal to Noise.................... 27 dB Group Delay with Output Filter.......... ± 25 ns Harmonic Output.............................. -50 dB Spurious Output............................ -50 dB Spectrical Mask with Output Filter...... -46 dB @ Channel Edge -85 dB ± 6 MHz Ref. channel edge below average transmitted power (Watts/5.4 MHz) Phase Noise.................................. -106 dBc/Hz @ 20 kHz Operating Temperature.................... -10 to +35 degrees Celsius Ambient +14 to +95 degrees Fahrenheit Ambient Altitude...................................... 5,000 ft without additional cooling Cooling Requirement...................... Built in, except where noted Connectors.................................. F Connector Input, N Connector Output Power Consumption........................ 500W maximum AC Line Voltage........................... 85 – 120 VAC Single Phase Weight....................................... 100 lbs Dimensions................................. 21” x 16” x 24” (W x H x D) Standard Page 3 Section III Transmitter Installation PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual lll -- TRANSCODER INSTALLATION lll -- TRANSCODER INSTALLATION To ensure long and reliable trouble-free service from the DTC25U transcoder the following steps for installation are recommended: 1. MECHANICAL INSTALLATION:The DTC25U Transcoder was designed to be installed in a building protected from the weather. The building should have a hard-surface floor such as concrete with a moisture barrier. This barrier could be pressure-treated wood sub flooring which could be anchored to the concrete and to the transmitter to make the installation earthquake resistant. Allow a minimum of three feet around the transmitter cabinet for service access. The top of the transmitter should be clear for three feet above to allow the air to exhaust from the transmitter. Provisions for air inlet and exhaust from the room must allow air flow with minimal obstruction. In the event that the room temperature exceeds 35º Celsius (95º F), cooling air must be provided so that the room temperature will not exceed 35 degrees Celsius under worse case conditions. Notice: This equipment is HEAV Yand must be handled by professional movers with proper equipment. Any damage caused by the installers is not covered under warranty. Check to ensure that installing crews…

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DCT25U BLOCK DIAGRAM L.O. Decoder Baseband Processor I Q Modulator Optional LPF BPF Coupler Power Supply Control & Monitoring SS Amp SS Amp L.O. SS Amp RF In RF Out SS Amp

February 13, 2007 Federal Communications Commission Office of Engineering Technology 445 12 th Street SW Washington, DC 20554 Dear Sir, This letter will serve to address FCC correspondence letter 32549 regarding the type certification for the PTI DTC25U broadcast transmitter. The associated FCC ID number is PW2DTC25U. Specifically, the correspondence letter identified above seeks additional information on how the transmitter is configured regarding whether integral components are the same for both frequency ranges of the proposed grant frequencies. As the technical consultant for Pineapple Technology Inc., they have authorized me to provide the information which should help resolve this question. It is my technical opinion that only one set of test data needs to be submitted for both frequency ranges 470-608 MHz and 614-806 MHz based upon the design of the unit. The design of the unit is such that the transmitter works over the entire 470-806 MHz with no change of parts. The only frequency dependent part is the transmitter final bandpass filter. The transmitter final bandpass filter is the same block of material but it is tuned to the desired operating channel and supplied by the manufacturer to PTI. The performance obtained at any test frequency within the entire range of 470-806 MHz will be representative of each transmitter shipped. If there are any clarifications needed or you have any questions please give me a call at the number above. Sincerely, Greg Best President Cc Robert Artigo, Pineapple Technology Inc. Greg Best Consulting, Inc. 9223 N. Manning Ave. Kansas City, MO 64157 816-792-2913

PINEAPPLE TECHNOLOGY, INC.PINEAPPLETECHNOLOGY,INC. FCC ID: TRANSMITTER ID MODEL S/N Rocklin, CA 95677 USA PW2DTC25U DTC25U

PINEAPPLE TECHNOLOGY, INC. UTX1K ULTRA Operating and Service Manual V -- THEORY OF OPERATION V --- THEORY OF OPERATION (Page 1 of 2) A. INTRODUCTION The DTC25U transcoder was designed to meet or exceed all FCC applicable specifications for TV broadcast equipment. Special attention was given to the selection of sub-assemblies and components to achieve maximum reliability and minimum down time. The construction of the DTC25U is BASIC and MODULAR with most components field replaceable. Special emphasis was placed on "KEEPING IT SIMPLE" and returning to more traditional transmitter layouts and instrumentation. Refer to the DTC25U block diagram for an overview of the transmitter architecture. This will give the technician basic information needed to understand the operation of the transmitter and the function of each subassembly. SEE SECTION Vl.A FOR PARTS LIST AND BLOCK DIAGRAM. B. XC100LC Regenerative Transcoder B-1 Exciter Refer to the Larcan user manual for information on the exciter portion of the transcoder. SEE SECTION VI.B FOR SCHEMATIC AND PARTS LIST B-2. Drake Up Converter Refer to Drake user manual for information on the operation of this portion of the transcoder. PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual V -- THEORY OF OPERATION V. THEORY OF OPERATION (CONTINUED) (Page 2 of 2) C. LTX Mainframe Power Amplifier Cabinet - The cabinet is constructed of heavy gauge steel and is very durable. This enclosure is painted black and is resistive to harsh environment. Standard 19 inch rack mounting. LTX-D1 Mainframe Assembly - Internal sub-assemblies include the following: 1. DC Power Suppl y 2. RF Deck 3. Status Monitoring (1A0035) 4. Output Power Detector Board (1A0027) 5. Reflected Power Detector (1A0029) and Shutdown Switch 6. Metering and Monitoring Assembly (1A0300 ) For details of this sections above, see appropriate sections in this manual. D. BPUD100 Digital Mask Filte r The FCC Stringent Mask filter supplied with the DTC25U transcoder is designed to completely satisfy the FCC Rules for a low power TV transmitter and translator. This is a closed unit and does not require field adjustment. E. Optional Low Pass Filte r This low pass filter is required and will be supplied with DTC25U translators that operate on Channels 22 - 24, 32 - 36 and 38 for the specific purpose of providing "out of band" protection to Radio Navigation Satellite Services. PINEAPPLE TECHNOLOGY, INC. DTU25C Operating and Service Manual VIII -- ADJUSTMENTS AND TUNING VIII --- ADJUSTMENTS AND TUNING The DTU25C is a new series of digital transcoders offered by Pineapple Technology, Inc. The latest in LDMOS device and circuit technology are employed to ensure reliable and serviceabl e operation for many years. There are very few adjustments necessary to maintain full service condition. Typically the gai n adjustment shown in the initial Transcoder Turn-On Procedure (Section IV) of this manual should require minimal attention. The front meter panel has been set up so that 100% indication in Forward Power is equivalent to 25W average output power. The input frequency (channel) can be adjusted, within the auspices of the broadcasting re-transmission rights, to the appropriate required channel (See Larcan Manual). The transmitter output must remain on the channel licensed by the FCC and in accordance with the supplied digital mask filter.

PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST A. DTC25U Assembly Tree Item Qty Type P/NTitleDetail TopCAT DTC25UUHF TV TRANSCODER 25 W R MLARCAN EXCITTER/CONVERTER 11PSBPUD100DIGITAL MASK FILTER UHF TV 100 WATTS RMS 21PLLTXMAINFRAMELTX SERIES XMTR 100 W UHF BASIC UNIT 31PSXC100LCTRANSCODER, LARCANUHF DIGITAL TRANSLATOR

PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST B. LTX-D1 Mainframe Assembly Tree Item Qt y Typ eP/NTitleDetail TopPL LTXMAINFRA MLTX SERIES XMTR 100 W UHF BASIC UNIT 11 PS MF9529ALTX HEAT SINK HOLDERAL 090 21 PS MF9531ALTX FRONT PANEL0125 AL W/PAINT AND SILK 31 PS MF9532ALTX CHASSIS090 AL ALODYNE W/REAR SILK 41 PS MF9533ALTX AIR DAM DEFLECTOR050 AL ALODYNE 51 PS MF9534ALTX TOP COVERO60 AL ALODYNE 61 PL MF9535LTX100U HEAT SINKSTD HEAT SINK W/U250LD FP 70 PS MF9536LTX100 VHF HIGH HEAT SINKSTD PTI HS MATERIAL 80 PS MF9537LTX100 VHF LOW BAND HEAT SINK STD PTI HS MATERIAL 90 PS MF9538 LTX200U HEAT SINKU250LD MTG WITH DRIVER 101 PS PC9515COUPLER GP COVER TMM3 0125USE ON ALL -30dB COUPLERS 111 PS PC9514UHF -30 dB COUPLER TMM3 0125DUAL DIRECTIONAL 120 PS PC9513VHF HB -30 dB COUPLER TMM3015DUAL DIRECTIONAL 130 PS PC9512VHF LB -30 dB COUPLER TMM30125 DUAL DIRECTIONAL 141 PS 660104LTX MULTI-FUNCTION METERHOYT MODEL 3135 ANALOG MTR 151 PS AC3108CIRCUIT BREAK/ ON/OFF SWITCH115 VAC 10 A RESETABLE 161 PS AC1003FILTER, AC LINE110/220 AC PLUG 171 PS 990200FILTER, AIR DRYCOMAIR FILTER/GUARD ASS,Y 181 PS 851035FAN AC 115 100 CFM 115 VACCOMAIR-ROTRON MUFFIN XL AC MX2A3 191 PS CA5110CABLE ASSEMBLY 10 WIRE10 WIRE SOC TO SOC CONNECTOR 204 PS 480300CON 2 PIN HEADERAMP A23837-ND 221 PS AC2010DC POWER SUPPLY 115/220 VAC320 WATTS 27-31 VDC 236 PS INHOUSE_LA BPTI LABOR LOADED 248 PS INHOUSE-EN GENG TESTING AND FIXITLOADED 251 PL 1A0300LTX100 METERING CIRCUITFRONT PANEL ASSEMBLY 261 PL 1A0027PWR MONITOR CKPC9052B CBR 271 PL 1A0035PA STATUS BOARDPC9061H 281 PL 1A0026VSWR/PWR DET BRDPC9051A 291 CA TDRV10-40DRIVER AMP WITH ALC CKT PO10W 311 PS BPU150NBP FILTER 150 W UHF470-862 MHz 32O PS BPVH300NBP FILTER 300W VHF HB CL3NV (M) NTYPE N CONNECTORS 330 PS BPVL200NBP FILTER LTX XMTR VHF LBTYPE N CONNECTORS 200 W 341 PS 990280FINGER GUARD 6"FINGER GUARD 150MM METAL 351 PS 851030PATRIOT AC FAN 110 VXL100 EXHAUSE FAN 361 PS 481501AURAL FEMALE PNL CONNECTORXLR TYPE 3 PIN 371 PS 481502AURAL MALE PLUE XLR3 PIN 381 PS 484025TOGGLE ON/OFFFLAT LVR 2 PIN 391 PS 491350

PINEAPPLE TECHNOLOGY, INC. DTC25U Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST D. MFA1PA POWER AMPLIFIER 1. 1A0035 STATUS BOARD PARTS LIST Item Qty Type P/NTitleDetail TopPL1A0035PA STATUS BOARDPC9061H 12PS114330RES ARRAY, SMT330 OHMS 25PS115103RES CHIP 080510K OHM SMT 0805 31PS115334RES CHIP 0805330 K OHM SMT 41PS115563RES CHIP 080556K OHM 0805 SM 53PS115682RES CHIP 08056.8 K OHM SMT 66PS21X005CAP CHIP 0805100NF 10% XTR 0805 CASE 71PS21X008CHIP CAP 080510NF 50 V 0805 SM 81PS240109CAP TH POLYPROPYLENE3N3 600 WVDC .033UF 91PS240110CAP TAN SMD3.3 UFD 35 V 101PS240111CAP TAN SMD47 UF 10 V TAN 111PS241300CAP RADIAL TH330 UF 35 VDC 121PS241301CAP RADIAL TH680 UF 10 V ELECTROLYTIC 136PS27022NFT CAP 22N SMAVX OR MURRATA PART 141PS480500CON MICRO-FIT HEADER 3.08 PIN PC MTG 151PS520230SEMI DIODE SHOTTKEY1.5 A 60 VDC D-64 161PS520275SEMI, DIODE DUAL SW CC 70V SOT-23 172PS530350HEX SCHMITH TRIG74HD14 181PS538150IC SWITCHER SIMPLESO8 PAK 195PS630200IND LED DUAL COLORRED/GREEN T1-3/4 CLR 208PS750001FERRITE BEAD SMT0805 EMI FERRITE BEAD 211PS830510IND, W/W82 UH .58A PWR SMD 221PSPC9061HPA STAUS BRDFR4 060 1/1 CBR 232PS115331RES CHIP 080533O OHM SMT 241PS520120SEMI ZENER5.6 V MELF 251PS115683RES CHIP 080568K SM 260.2 PSOS_AES_1A0025OUTSIDE ASS'Y 1A0025ASS'Y WORK 270.1 PSINHOUSE_LABORPTI LABOR 280.1 PSINHOUSE-ENG TES TENG TESTING AND FIXIT 291PS480510RECEPTACLE8 CKT RECEPT MOLEX 301PS115333RES CHIP 080533K OHM SMT 311PS1155112RES 0805 CASE51.1 K OHM 1%

SIZE FSCM NO. SCALE SHEET DWG NO . REV Pineapple Technology , Inc. Rocklin, CA Mask Filter AC Inlet AC Inlet DC Inlet RF Input RF Input RF Output Mon RF Probe Remote Interface DC Out Larcan 8VSB Regen Transcoder Drake DCU860 Up Conv LTX-D1 Mainframe Assembly Ant RF In Optional Low Pass Filter as required IF DTC25U Digital T ranscoder A B 1 1:1 XC100LC DB9 SIZE FSCM NO. SCALE SHEET DWG NO . REV Pineapple Technology , Inc. Rocklin, CA LTX-D1 Mainframe Assembly A 1 B 1:1 Directional Coupler CAL CAL ATT ATT R F AC Inlet 110 VAC DC Output DVR10U M +DC RF IN PA Fan PS1 Power Supply 27VDC 1 1A 110VAC ON\OFF SW U250LD M +DC RF IN DC Metering and DC Monitoring 1A0300 RF Deck LTX-D1 Mainframe 110 VAC RF DB9 From RF Output Monitor Ta p RF RF Probe FWD Pwr P1 P2 P3 Gnd P4 Shutdown P5 P6 RFLD Pwr P7 ALC P8 +8 VDC P9 SIZEFSCM NO. SCALE SHEET DWG NO.REV Pineapple Technology, Inc. Rocklin, CA BPUD100 Stringent Mask Filter No Serviceable Parts SECTION VI - SCHEMATIC AND PARTS LISTS SUB-SECTION C - DTC25U SIZEFSCM NO. SCALE SHEET DWG NO.REV Pineapple Technology, Inc. Rocklin, CA Low Pass Filter CIRCUIT DIAGRAM No Serviceable Parts Used as required SECTION VI - SCHEMATIC AND PARTS LISTS SUB-SECTION D - DTC25U

1 INTRODUCTION Pineapple Technology Inc. 25 WATT DTV TRANSMITTER Pineapple Technologies Inc. (PTI) has designed, built, and tested a 25 watt DTV transmitter with model number DTC25U. The transmitter consists of a baseband input processor that accepts a SMPTE 310 transport stream, a modulator that converts the transport stream to an on-channel 8 VSB RF signal, power amplifier that amplifies the DTV signal to 25 watts, power supply that provides DC power to the RF power amplifier, RF mask filter that prevents interference to other services, and AC distribution/control system that energizes and controls the transmitter. The attached exhibits indicate compliance to appropriate FCC rules. Greg Best Consulting, Inc 5541 Vantage Vista Drive Colorado Springs, CO 80919 719-592-9781 3 TEST REPORT DTC25U DTV TRANSMITTER TECHNICAL REPORT The following information is provided to support the technical performance of the PTI DTC25U DTV transmitter. The information is supplied for broadcast TV service according to applicable portions of Part 74. The following information is provided in support of verification that the transmitter meets the appropriate requirements. Measurements were recorded of spectrum and other appropriate data to demonstrate compliance. 1. Power Output Measurements. 2. Frequency Stability tests versus AC input voltage and temperature 3. Harmonic and spurious measurements to demonstrate the transmitter meets the DTV stringent emission mask and the FCC rule 74.794. 4. Measurement of cabinet radiation for spurs and harmonics as specified in FCC Rule 2.1053 and 2.1057. Measurements for these parameters were conducted at a power output level of 25 watts and the range of power for which type certification is sought is 25% of that value (i.e. 6 watts) to the maximum value of 25 watts. The test equipment used for the measurements on the next few pages is listed at the back of this exhibit. All test equipment had been calibrated prior to the use of the equipment by the supplier of the test equipment. 4 RF POWER OUTPUT MEASUREMENTS The equipment was configured as below shown in Figure 1. The loss through the RF output cable and directional coupler was calibrated at the channel center frequency of 587 MHz. Average power was read on the HP435B Power Meter. Figure 1 The loss of the directional coupler, interconnecting cable, and power attenuator was determined to be 40.0 dB. Measurement at Nominal Transmitter power The transmitter was energized in the test configuration above and the power was read on the HP-435 Power Meter. The indicated reading is shown below. 5 Calculation of output power. 2.55 mwatts (indicated reading) + 40 dB = 25.5 watts Low Power Operation The transmitter was energized in the test configuration above and the power was read on the HP-435 Power Meter. The indicated reading is shown below. Calculation of output power. 0.65 mwatts (indicated reading) + 40 dB = 6.5 watts Frequency Stability versus Line Voltage The equipment was configured as below shown in Figure 2. A variac was inserted in the test configuration between the AC mains service and the DTC25U Transmitter. The AC voltage was set-up at 120 volts and the transmitter was energized and adjusted to produce 25 watts in the RF channel. The nominal frequency was recorded. The variac was adjusted to 85% and115% of nominal voltage and the corresponding changes in pilot frequency measured on the R & S EFA were recorded in the table below. The measured frequency was within the +/- 10 kHz tolerance indicated in FCC rule 74.795. Line Voltage (Volts) Measured Pilot Frequency (MHz) 104 650.314231 120 (nominal) 650.314233 140 650.314213 6 Frequency Stability versus Temperature For temperature stability measurements the exciter was placed inside a Tenney temperature chamber equipped with a MicroTenn II temperature controller as shown in Figure 2. The exciter was energized at nominal power and the pilot frequency was measured on the Rhode and Schwarz EFA test set. The temperature was then raised to +50ºC, allowed to stabilize for 15 minutes and then cycled to each colder temperature where it was allowed to stabilize for 10 minutes before recording the measured value. TEMPERATURE º C FREQUENCY (MHz) 25 650.313153 50 650.311555 40 650.312183 30 650.312961 20 650.312859 10 650.312216 0 650.310763 The maximum variation in frequency over the specified temperature range was 2.39 kHz which was well within the +/- 10 kHz tolerance identified in FCC rule 74.795. FIGURE 2 7 Emission Mask Compliance Measurement To determine emission mask compliance the test equipment configuration shown below was used. The transmitter was tested for compliance with the stringent emission mask classification. The first part of the tests measured the adjacent channel emission and the second part of the tests measured the harmonic and spurious energy. Figure 3 Dashed line indicates connection for first part of the adjacent channel measurement. The transmitter was energized at 25 watts on channel 33 (center frequency of 587 MHz) as calculated by the insertion loss of the directional coupler and the interconnecting cables and a reference was established on the spectrum analyzer (using the channel power measurement mode) and also on the EFA test equipment. The minimum displayed average noise level (DANL) for the spectrum analyzer was determined to be -120 dBm in a 10 kHz bandwidth. In order to measure a signal equivalent to the emission mask, the RF sample level must be 93 dB above the DANL using the RBW of 10 kHz. That level will be -27 dBm. In this case, the RF sample level was + 8 dBm as measured with the channel power measurement mode of the spectrum analyzer so an adequate signal level was available. The bandstop filter frequency response was determined using a network analyzer. The insertion loss at the center of each of the twelve 500 kHz segments either side of the main channel was tabulated. The bandstop filter response is shown below. DTC25U TRANSMITTER Sp…

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Cabinet Radiation The transmitter and test equipment were configured as shown below including the angles of measurement with respect to the transmitter cabinet. The photo on the subsequent page also shows the physical set- up of the test equipment and equipment under test. The transmitter was operated at 25W average power. The free space path loss, cable loss and antenna gain characteristics were obtained at the fundamental frequency and at each of the harmonics of the center frequency of channel 33 (587 MHz) in order to accurately assess the level of the signal radiated from the cabinet. Radiation from the cabinet was measured at a distance of 30 feet in 4 different physical rotation angles: 0, 90, 180 and 270 degrees (0 degrees being the front of the cabinet). All spectral components above the noise floor (-92 dBm in a 500 kHz bandwidth) referenced to average power radiated from the cabinet were recorded. The values are tabulated in the table on the next page following the photo. PHYSICAL CABINET RADIATION TEST CONFIGURATION This photograph shows the actual laboratory environment in which the cabinet radiation tests were conducted. The log periodic antenna, cable and spectrum analyzer are shown in the foreground and the DTC25U is shown in the background. The transmitter was rotated 90 degrees for each of the measurement orientations. As calculated from the spreadsheet data on the following page, the worst case measurement was 63 dB at the second harmonic (The photo above shows this particular measurement). The measurement tables for the remaining views of the transmitter are shown on the following pages. CABINET RADIATION MEASURED DATA TEST INPUTS CONDITIONS & PARAMETERS > TEST DATE: > 6/30/2006 TEST ENGINEER: > R. ARTIGO TRASMITTER MODEL NO: > DTC25U UHF TRANSCODER OPERATING POWER OUTPUT LEVEL >44 dBm OPERATING FREQUENCY IN GHz >0.587 GHz ANTENNA MODEL NUMBER > ETS 3147 S/N 9112-1053 SPECTRUM ANALYZER MODEL > 8595E DISTANCE TO TRANSMITTER IN METERS >10 METERS Signal levels measured in 30 kHz RBW and scaled to 500 kHz bandwidth FRONT VIEW Harmonic Frequency SIGNAL LEVEL CABLE LOSS dB ANTENNA GAIN dB PATH LOSS dB ADJ LEVEL MAXIMUM LEVEL STATUS P=PASS GHz dBm dB dB dB dBm dBm Fc*2 1.174 -69 0.9 5.7 53.89336 -19.9066 -16 P Fc*3 1.761 -92 1.3 5.55 57.41519 -38.8348 -16 P Fc*4 2.348 -92 1.65 5.2 59.91396 -35.636 -16 P Fc*5 2.935 -92 1.8 4.85 61.85216 -33.1978 -16 P Fc*6 3.522 -92 1.9 5 63.43579 -31.6642 -16 P Fc*7 4.109 -92 2 3.4 64.77472 -28.6253 -16 P Fc*8 4.696 -92 2.3 3.2 65.93456 -26.9654 -16 P Fc*9 5.283 -92 2.8 2.7 66.95761 -24.9424 -16 P Fc*10 5.87 -92 3 3.2 67.87276 -24.3272 -16 P RIGHT VIEW Harmonic Frequency SIGNAL LEVEL CABLE LOSS dB ANTENNA GAIN dB PATH LOSS dB ADJ LEVEL MAXIMUM LEVEL STATUS GHz dBm dB dB dB dBm dBm Fc*2 1.174 -68 0.9 5.7 53.89336-18.9066 -16 P Fc*3 1.761 -92 1.3 5.55 57.41519-38.8348 -16 P Fc*4 2.348 -92 1.65 5.2 59.91396-35.636 -16 P Fc*5 2.935 -92 1.8 4.85 61.85216-33.1978 -16 P Fc*6 3.522 -92 1.9 5 63.43579-31.6642 -16 P Fc*7 4.109 -92 2 3.4 64.77472-28.6253 -16 P Fc*8 4.696 -92 2.3 3.2 65.93456-26.9654 -16 P Fc*9 5.283 -92 2.8 2.7 66.95761-24.9424 -16 P Fc*10 5.87 -92 3 3.2 67.87276-24.3272 -16 P LEFT VIEW Harmonic Frequency SIGNAL LEVEL CABLE LOSS dB ANTENNA GAIN dB PATH LOSS dB ADJ LEVEL MAXIMUM LEVEL STATUS GHz dBm dB dB dB dBm dBm Fc*2 1.174 -68 0.9 5.7 53.89336-18.9066 -16 P Fc*3 1.761 -92 1.3 5.55 57.41519-38.8348 -16 P Fc*4 2.348 -92 1.65 5.2 59.91396-35.636 -16 P Fc*5 2.935 -92 1.8 4.85 61.85216-33.1978 -16 P Fc*6 3.522 -92 1.9 5 63.43579-31.6642 -16 P Fc*7 4.109 -92 2 3.4 64.77472-28.6253 -16 P Fc*8 4.696 -92 2.3 3.2 65.93456-26.9654 -16 P Fc*9 5.283 -92 2.8 2.7 66.95761-24.9424 -16 P Fc*10 5.87 -92 3 3.2 67.87276-24.3272 -16 P REAR VIEW Harmonic Frequency SIGNAL LEVEL CABLE LOSS dB ANTENNA GAIN dB PATH LOSS dB ADJ LEVEL MAXIMUM LEVEL STATUS GHz dBm dB dB dB dBm dBm Fc*2 1.174 -68 0.9 5.7 53.89336-18.9066 -16 P Fc*3 1.761 -72 1.3 5.55 57.41519-18.8348 -16 P Fc*4 2.348 -92 1.65 5.2 59.91396-35.636 -16 P Fc*5 2.935 -92 1.8 4.85 61.85216-33.1978 -16 P Fc*6 3.522 -92 1.9 5 63.43579-31.6642 -16 P Fc*7 4.109 -92 2 3.4 64.77472-28.6253 -16 P Fc*8 4.696 -92 2.3 3.2 65.93456-26.9654 -16 P Fc*9 5.283 -92 2.8 2.7 66.95761-24.9424 -16 P Fc*10 5.87 -92 3 3.2 67.87276-24.3272 -16 P All cabinet radiation measurements indicate the FCC rule has been met. Final Amplifier Voltage and Current Measurements Final amplifier voltage and current measurements were made with the transmitter operating at 25 watts power and at 6.25 watts power. Voltage and current measurements were made using a Fluke 77 meter. Output Power =25 Watts Voltage = 32 volts Current = 6.0 amps Final amplifier power input = 192 watts Output Power =6.25 Watts Voltage = 32 volts Current = 4.0 amps Final amplifier power input = 128 watts Equipment List The following test equipment was used in the various test equipment configurations or to create calibration of equipment at various frequencies. All equipment was known to be in good working order and was within the calibration period. EQUIPMENT MODEL SERIAL NUMBER HP435 Power Meter 2702A17274 HP8481 Sensor 3318A99176 R & S EFA Demodulator 100041 Agilent 8753D Network analyzer 3410A04800 Madell Corp. Variac 000784 MFC stopband filter N/A Minicircuuits Highpass filter NHP1000 10427 Agilent HP8595E Spectrum Analyzer 3523A01399 ETS 3147 Log Periodic Antenna 9112-1053 Weinschel Model 53-40-43 Dummy Load LL772