PW2DTXPRO800U800 W DTV TRANSMITTER

PINEAPPLE TECHNOLOGY, INC. TABLE OF CONTENTS DTXPRO-800U OPERATING AND SERVICE MANUAL THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION TABLE OF CONTENTS SECTION I – SAFETY NOTICES....................................................................................... 4 SECTION II – DTXPRO-800U INTRODUCTION............................................................... 4 SECTION III –TECHNICAL SPECIFICATIONS................................................................ 6 SECTION IV DTXPRO-800U BLOCK DIAGRAM A. BLOCK DIAGRAM............................................................................................... 10 B. BILL OF MATERIALS.......................................................................................... 11 SECTION V – DXDPRO-10U MANUAL V.1 – DXDPRO-10U INTRODUCTION................................................................ 12 V.2 – DXDPRO -10 UTECHNICAL SPECIFICATIONS............................................ 14 V.3 - APPLICATIONS AND INSTALATION A. APPLICATIONS.................................................................................. 18 B. TRANSMITTER INSTALATION......................................................... 18 C. DIGITAL UPGRADE NOTES............................................................. 19 D. 8 VDC OPERATIONS......................................................................... 19 E. GPS RECEIVER ACTIVATION........................................................... 19 V.4 FRONT PANEL CONTROL AND MONITORING A. OVERVIEW......................................................................................... 22 B. TRANSMITTER PERFORMANCE MONITORING ............................ 22 C. ALARM SIGNALS............................................................................... 22 D. POWER LEVEL ADJUSTMENT AND ALC......................................... 22 PINEAPPLE TECHNOLOGY, INC. TABLE OF CONTENTS DTXPRO-800U OPERATING AND SERVICE MANUAL THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION TABLE OF CONTENTS V.5 - ETHERNET WEB PAGE CONTROL AND MONITORING A. LOCAL PC INTERNAL MODEM SETTINGS FOR FIXED IP................ 24 B. ETHERNET WEB PAGE SETUP............................................................ 28 C. IP ADRESS CONFIGURATION.............................................................. 28 D. WEB SERVICE OPERATION................................................................. 30 V.6 – ADAPTIVE PRE-CORRECTOR WEB SERVICE OPERATION A. INTRODUCTION...................................................................................... 43 B. ELECTRICAL INTERFACE...................................................................... 43 C. OPERATION OF ADAPTIVE PRE-CORRECTOR................................... 46 D. ECHO CANCELLING AND ADAPTIVE PRE-CORRECTION................. 56 E. APPENDIX-A – CLIPPER OPERATION.................................................. 57 V.7 - DXDPRO-10U BLOCK DIAGRAM................................................................... 61 SECTION VI - DTXPRO-800U INSTALLATION PROCEDURE..................................... 65 SECTION VII – DXDPRO-800U SERVICE REQUIREMENTS.......................................... 67 SECTION IX – DXDPRO-800U WARRANTY.................................................................... 70 THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION SECTION I SAFETY NOTICES PINEAPPLE TECHNOLOGY, INC. I. SAFETY NOTICES DTXPRO-800U OPERATING AND SERVICE MANUAL THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION 4 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. THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION 4 SECTION II DTXPRO-800U INTRODUCTION PINEAPPLE TECHNOLOGY, INC. I. DTXPRO-800U INTRODUCTION DTXPRO-800U OPERATING AND SERVICE MANUAL THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION 5 I. DTXPRO-800U INTRODUCTION The DTXPRO-800U transmitter is an integrated transmission system. Included in a 19 inch, 24 RU rack is a modulator, power amplifier, mask filter, and standard accessories. The DTXPRO- 800U is tested to FCC specifications. The modulator used in this assembly is the DXDPRO-10U. The DXDPRO-10U is a UHF 8vsb broadband modulator with adaptive linear and non-linear correction controllable via an Ethernet IP connection. Many additional features are included in this basic modulator such as transmitter remote control and status monitoring, GPS receiver, ASI or SMPTE 310M, and fault notification via email. This unit will operate with 110 VAC or any 48 VDC TELEC…

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PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 1 Equipment Model: DTXPRO-800U External Construction Photos Front Full View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 2 Equipment Model: DTXPRO-800U External Construction Photos Front Top Third View Front Middle Third View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 3 Equipment Model: DTXPRO-800VH External Construction Photos Front Bottom Third View Right Side Full View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 4 Equipment Model: DTXPRO-800VH External Construction Photos Left Side Full View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 5 Rear Full View

PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS FCC Label and Location Page 1

PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 1 Equipment Model: DTXPRO-800U Internal Construction Photos Rear Door Open Full View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 2 Equipment Model: DTXPRO-800U Internal Construction Photos Rear Door Open Top Third View Rear Door Open Middle Third View PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 3 Equipment Model: DTXPRO-800U Internal Construction Photos Rear Door Open Bottom Third View

PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U THEORY OF OPERATION 1 THEORY OF OPERATION A. INTRODUCTION The DTXPRO-800U transmitter 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 DTXPRO-800U 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 DTXPRO-800VH 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. B. ACDIS1 AC & DC DISTRIBUTION The ACDIS1 is the primary AC power inlet module. The DTXPRO-800U transmitter was designed to accept 208 to 240 VAC Single Phase using a four (4) wire connection. The four wires are: --- 2 wires for 208 -240 VAC Single Phase --- 1 wire for neutral connection --- 1 wire for safety ground connection CAUTION: Connection to the AC Primary source must be made using all four wires listed above. Follow the wiring instruction given in TRANSMITTER INSTALLATION Section lll.3. If not followed, severe damage to the transmitter and, or, electrical shock could result. The ACDIS1 performs the following functions: 1. Provides a primary AC power breaker point to shutdown the transmitter 2. Provides 208-240 VAC power to each of the 2 KWDC power supplies with individual breaker points for added safety. 3. Provides 110 VAC circuits for Exciter, ADP1000, and AUX Power where needed. 4. Analog metering is provided to monitor the Power Supply voltage and current being applied to the RF Amplifier states. 5. Power supply current sharing test points are provided for checking current sharing between power supply modules. PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U THEORY OF OPERATION 2 V -- THEORY OF OPERATION (Continued) C. PS4KW 4 KW POWER SUPPLY ASSEMBLY The DTXPRO-800U transmitter is designed with over 4 kW of DC power. To achieve this level, the power supply in each transmitter rack is made up of two (2) AC2050 power modules mounted into one (1) main frame assembly, AC2009, which is capable of managing both 2 kW modules. The power modules are "HOT PLUGGABLE" and can be removed or installed without turning off the transmitter. Although the transmitter output power would need to be reduced below the level of power from one PS module. A third power supply module can be purchased for added redundancy. Each power supply module has OVER VOLTAGE, OVER CURRENT AND OVER TEMPERATURE protection as well as a fault signal in the event of a failure. REFER TO MANUFACTURER'S MANUAL FOR THE RRSI SERIES POWER SUPPLY PROVIDED WITH THIS DTXPRO-800U USER MANUAL. D. ADP1000 PERFORMANCE MONITOR The ADP1000 Performance Monitor provides the following functions: 1. Provides device current monitoring of all the pallets used in the two (2) PA1KU-50 power amplifier assemblies. The current levels can be read directly from the multi- meter on the front panel. Individual PA's and pallets are selectable on the ADP1000. In normal operation, a PA FAULT is indicated when the LED goes from green to red. RED indicates that the current level is below 500 mA and a transistor device may have failed. To read the actual current, select the appropriate Power Amplifier (i.e.: PA1, PA2) using the push button switch. Then, using the rotary switch on the ADP1000, rotate through the 5 PA positions to measure the drain current on each transistor device for the selected power amplifier module. The multi-meter will read the actual current. 2. A PA INHIBIT switch is provided for failure diagnostic purposes. When activated, this switch allows the technician to monitor the bias currents for each pallet. These readings were recorded at the factory and are found on the Transmitter Test Report, DC Test Report Section. This is the best way to troubleshoot possible transistor problems. When in the PA INHIBIT mode, the RF PWR OFF LED will change from green to red indicating that the "SHUTDOWN LINE" is at TTL 0 state and the output power has been reduced to near zero. 3. The PA designations on the ADP1000 are PA5 (inhibited in this transmitter) then PA1 and PA2, indicating the devices on the left side DX500UA-50 Pallet. PA3 and PA4 indicate the current through the devices on the right side DX500UA-50 Pallet. PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U THEORY OF OPERATION 3 V -- THEORY OF OPERATION (Continued) The rotary switch on the ADP1000 is the detail selector for the multi-meter. The various positions are defined as follows: PA5 Reads PA Driver device currents as selected Typical reading in INHIBIT MODE 1.5 to 2.5 A. Typical reading in normal transmitter operation approximately 1 to 2 amps. PA1 to 4 Reads the individual drain currents on each device located on the pallets located on the left and right side of the Power Amp selected. Typical reading in normal transmitter operation is approximately 7 to14 amps. PA6 Not used PS VOLTS Reads DC voltage applied to PA stages Typical reading for 50 VDC would be the center of the meter, in the green zone. P FWRD Not Used (See Exciter) P RFLD Not Used (See Exciter) AUX 1 & AUX 2 Not used in this configuration. E. DXDPRO-10U EXCITER The heart of any TV Transmitter is the Exciter. This equipment receives the ASI (or SMPTE) digital stream from the source, changes the format to ATSC 8VSB and up converts the IF signal to the specific “on-channel” RF broadcast frequency. The DXDPRO-10U provides adaptive linear and non-linear correction and consists of a ProTV core modulator assembly and a 15 VDC power supply. In addition, the DXDPRO-10U Exciter has an internal 10W driver, Automatic Level Control, Power Detector and Logical Measurement and Control. The DXDPRO-10U has provision for accepting a pre mask filter RF monitoring sam…

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Pineapple Technology, Inc. Bill of Materials Description Qty DTXPRO ‐ 800U ‐ XMTR, DIGITAL, UHF, 400W ‐ 800W 2ADTXPRO800U ‐ DTXPRO800 PRE FAB RACK ASSY 1 MF9552D ‐ RAIL, EQUIPMENT SUPPORT, RIGHT 4 MF9553D ‐ RAIL, EQUIPMENT SUPPORT, LEFT 4 2AMFA2PA ‐ PRE ‐ FAB ASSEMBLY FOR MFA2PA 1 ADP1000 ‐ DISPLAY PANEL, ANALOG 1 AC2009 ‐ 6KW 3EA PWR SUPPLY MAINFRAME 1 AC2050 ‐ POWER SUPPLY, 50VDC, 2.5KW, UNIPOWER 2 ACDIS1 ‐ AC & DC DISTRIBUTION 1 491663 ‐ ADAPTOR, BNC FEMALE ‐ F MALE 2 851040 ‐ FAN, 220 VAC, 10" x 3.5", 547 CFM, USED IN 32V XMTRS, ORION # OA254AP ‐ 22 ‐ 1TB 2 CCA110 ‐ COAX CABLE ASSY, RG223 BNC ‐ M/N ‐ M 052 2 CCA1119 ‐ COAX CABLE ASSY, 26" LDF4 2 MFR24RU ‐ OPT ‐ 24 RU ASSEMBLIED RACK, OPTIONAL 1 MFR24RU ‐ DOOR ‐ REAR DOOR FOR 24 RU RACK 1 MFR24RU ‐ DOOR ‐ REAR DOOR FOR 24 RU RACK 1 MFS102 ‐ COVER, RACK TOP, RU24/40, 2 FANS 1 PAC0005 ‐ DB9 MALE TO MALE 6 FT LONG 2 PTI_LABOR ‐ IN HOUSE LABOR 20 TH ‐ 108 ‐ 72 ‐ GROUNDING BUSS BAR CU, 72" 1 TH ‐ 109 ‐ SCREW, 10 ‐ 32 W/CAPT.WASH, RACK MTG 1 USH2C ‐ SPLITTER, UHF, HYBRID, QUATRATURE, 2 ‐ WAY, N CONNECTORS 1 UCH2KU ‐ COMBINER, HYBRID, QUADRATURE, 2KW , 4 X 7 ‐ 16 FEMALE 1 TR500U ‐ TERMINATION, UHF, 500 W CW DC ‐ 1 GHz 1 180005 ‐ 50 ‐ TERMINATION, 5W, 50 OHM, SMA/M 1 DXDPRO ‐ 10U ‐ MODULATOR, DIGITAL, UHF, ADAPTIVE, 10W RMS, USED IN 10W & 400W AND HIGHER XMTR'S 1 DDR25U ‐ DRIVER ASSY, DIGITAL, 25W, 50V PA, WITH ALC (SIMULAR TO UDR10C) 1 MPTPRO ‐ MODULATOR EXCITER, ADAPTIVE, PRE BUILT BOARD 1 MPTPROBP ‐ MODULATOR EXCITER, BACKPLANE, FOR MDXPRO BOARD 1 MF9579 ‐ HEATSINK, DXDPRO 1 MF9578 ‐ SPREADER, HEATSINK, DXDPRO ‐ 10X 1 MF9367 ‐ FRONT PANEL, DXDPRO 1 MF9756 ‐ CHASSIS, DXDPRO 1 MF9758 ‐ OVERLAY, DXDPRO ‐ 10U, FRONT PANEL 1 MF9711A ‐ COVER, CHASSIS, DR50xx 1 1A0067 ‐ MASTER LOGIC CONTROL AND DISPLAY BOARD, DXDPRO 1 CA269 ‐ WIRING KIT, RS232, DXDPRO MODULATOR 1 CA270 ‐ 18 ‐ WIRING KIT, I2C, DXDPRO MODULATOR 1 CA271 ‐ WIRING KIT, PS MODULE, DXDPRO MODULATOR 1 CA272 ‐ WIRING KIT, RF POWER DETECTOR, DXDPRO MODULATOR 1 CA273 ‐ WIRING KIT, ALC, DXDPRO ‐ 10 MODULATOR 1 CA275 ‐ WIRING KIT, EXTERNAL PA CURRENT & VOLTAGE, DXDPRO MODULATOR 1 CA276 ‐ WIRING KIT, 50V PA POWER, DXDPRO ‐ 10 1 AC2052 ‐ POWER SUPPLY, 48VDC, 100W, 2.2A, MEANWELL S ‐ 100F ‐ 48 1 1A0068 ‐ 1 ‐ POWER DISTRIBUTION, 5VDC AND PWR MONITOR (DXDPRO) 1 1A0068 ‐ 4808 ‐ VREG ASSY, SWITCHING, 48V IN, 8V OUT, DXDPRO, DXDMAINFRAME, DR50PRO 1 1A0068 ‐ 4832 ‐ VREG ASSY, SWITCHING, 48V IN, 32V OUT, DXDPRO ‐ 10, DTX MAINFRAME, DR50PRO 1 CA277 ‐ WIRING ASSEMBLY, IDC CABLE, 16 WIRE RIBBON, DIGI ‐ KEY A3DDH ‐ 1606G ‐ ND 1 460150 ‐ FUSE HOLDER PANEL MTG 1 851042 ‐ FAN, MINI, DC, 12V, SCREAMER FOR DXD100, BRAVO ELECTRONICS 4 851042 FAN , MINI , DC , 12V , SCREAMER FOR DXD100 , BRAVO ELECTRONICS 4 AC1003 ‐ FILTER, INLET, AC LINE, 10A 1 484001 ‐ SW, ON/OFF ROCKER AC 1 190002 ‐ 10 ‐ ATTENUATOR, 3GHZ, 10DB, 2W, SMA M/F* 2 480476 ‐ CON, COUPLER, RJ45, PANEL MOUNT 1 CCA102 ‐ COAX CABLE ASSY, RG ‐ 316 N ‐ FM/PIG TAIL 21 IN 1 CCA140 ‐ COAX CABLE ASSY, RG ‐ 316, SMA ‐ M ‐ RA/SMA ‐ F ‐ BH, 16", DXDPRO PRE FILTER SAMPLE 4 CA279 ‐ WIRING KIT, TEMP SENSE BOARDS, DXDPRO 1 CCA141 ‐ COAX CABLE ASSY, RG ‐ 316, SMA ‐ M ‐ RA/SMA ‐ M ‐ RA, 12", MODULATOR CORE TO DDR25 1 1A0071 ‐ I/O CONNECTOR BOARD, REAR PANEL, DXDPRO 1 MF9748 ‐ PLENUM, FAN, DXD100, CHASSIS 1 MF9761 ‐ BRACKET, PC BD MOUNTING, 5V CONV BD & 8V FAN BD, DXDPRO 2 1A6001D ‐ ALC CKT BD, DR50XX, REV D 1 MF9766 ‐ BRACKET, PC BD MOUNTING, 32V CONV BD, DXDPRO 2 1A0069B ‐ DETECTOR, POWER, FWD & RFLD, USED IN DXDPRO ‐ MB 1 BPUD1K ‐ 1 ‐ FILTER, UHF, 1 KW, DIGITAL MASK, 1 5/8 EIA PARALLEL 1 BLP2KU ‐ FF ‐ FILTER, UHF, HARMONIC/LOW PASS, 2 KW DTV, 7/16 DIN FEMALES, COM ‐ TECH 1 DC2KC ‐ 2 ‐ DC, 2 KW RMS, UHF, 7 ‐ 16 DIN 2 INHOUSE ‐ ENG TEST ‐ ENG TESTING AND FIXI T 20 PTI_LABOR ‐ IN HOUSE LABOR 35 SHIPACK002 ‐ SHIPPING CRATE, 24 RU, WOODEN, HAMMOND 1 PA1KU ‐ 50 ‐ PA ASSY, UHF, NO DRIVER, 400W RMS, 50VDC, MFA2PA ‐ 50 2

0 0 PA1KU-50 PA1KU-50 PA1 PA2 90 90 UCH2KU Phased 2-Way Hybrid Multicoupler USH2C Phased 2-Way Splitter 180005-50 5W Load ADP1000 Amplifier Performance Monitor DB9 AC Inlet Fwrd Pwr Rfld Pwr Temp Sen SD DC DistributionPanel DC Amps DC Volts Main AC 220 V AC Main Distribution ACDIS1 220 VAC 220 VAC 110 VAC 220 VAC A ACInlet ACOut AC Inlet DC Output +50 VDC A D MFA2PAU-50 PA1 M +DC RF IN PA2 M +DC RF IN MFA2PA PA1 Rack Fan D D PA Fans +50 VDC 125A 125A AC2050 Mainframe and AC2009 P/S (2 ea) 100 mv FS Meter Shunt FAN A 220VAC 110VAC 220VAC 10 AUX TR-500 Load HEATSINK DTXPRO-800U DIGITAL TRANSMITTER Note 1- 7-16 DIN ConnectorsNote 2 - This connection typically supplied by customerNote 3 - The feedline and antenna typically supplied by customerNote 4 - These are length matched cables Note 5 - N Connector Note 4 Note 1 Note 4 DB9 DB9 DB9 DB9 1/27/11 JHC BPUD1K-1 Mask Filter Internally Mounted FWD FWD FWD RFLD FWD DIRECTIONAL COUPLER DIRECTIONAL COUPLER Note 1 Note 5 Note 1 Note 1 Note 1 DC2KC-2 Directional Coupler DC2KC-2 Directional Coupler BLP2KU-FF Harmonic Filter Externally Mounted Low Pass Filter Note 1 Note 3 Note 1 Note 1 DXDPRO-10U Modulator Driver RF Output AC Inlet 48VDC Inlet (Optional) A 8VSB ASI IN B RJ45 ASI IN A ASI OUT C GPS IN 1 PPS OUT 1 PPS IN 10 MHZ OUT 10 MHZ IN Ethernet BNC } POST FILTER RF MON IN PRE FILTER RF MON IN FWD PWR MON IN RFLD PWR MON IN DB15, Remote Alarms DB9, Internal Transmitter Status 1A0068-1 DC Metering Remote ASI IN B RJ45 DB9 ASI IN A ASI OUT C GPS IN 1 PPS OUT 1 PPS IN 10 MHZ OUT 10 MHZ IN ETHERNET DC FANS RJ2 110 VAC { DC Power Supply Power Cont’l & Distrib 1A0068 Pwr Dist &DC-DC Converter Modulator (Adaptive) MPTPRO Master Logic Control AC2052 +48 VDC +48 VDC -48 VDC +5 VDC ALM & CONT ’L RF Out Pre Filter Post Filter AC Inlet Fuse CB / On-Off Sw AC2103 DC-DC CONV +5VDC 1A0068-4808 VREG 8VDC 8VDC +48 VDC +48 VDC +48VOut Display Status Control BACK PLANE MPTPROBP 5VDC DXDPRO-10U DIGITAL MODULATOR (Used in DTXPRO-10U and DTXPRO-400U AND HIGHER TRANSMITTERS) 10/7/10 JHC REV 3 DC-DC SW External 48VDC Optional POST FILTER RF MON IN PRE FILTER RF MON IN 8VSB POWER OUT SMA SMA SMA SMA Type N Female -12dB -5 dBm -5 dBm -12dB BNC } 1A0067 Logic, Control & Display ALC Control V oltage ALCController 1A0068 -4832 32V Reg 1A0070 TEMP SENSE 1A0070 TEMP SENSE 1A0069 PWR DET 1A6001 0 -2VDC Linear 0 -2VDC Linear 0 -2VDC Non-Linear 0 -2VDC Non-Linear FWD Power LOW FWD Power High RFLD Power HIGH J1 Local J2 Remote RFLD DET FWD DET 8 VDC FWD PWR MON IN RFLD PWR MON IN +7dBm +7dBm +7dBm +7dBm REMOTE ALARM J2 DB9 F DB15 + RS-232 (SCPI) +5V Current Monitor (0 - 2V) AC Fail Final Current Monitor (0 - 2V) 48V Voltage Monitor (0 - 2V) Final Voltage Monitor (0 - 2V) P10 P1 P11 P2 P12 P3 P13 P4 P14 P5 P15 P6P7P8P9 DX25U-50 1A0301 Amplifier +48VDC P1P2P3P4P5P6P7P8P9 J1 Heat Sink Over TempShutdown TS DDR25U +32 VDC ALC 0.7A 32V 48V P1P2P3P4P5P6P7P8P9 P10 P1 DIGITAL GNDEXT ALARM 1EXT ALARM 2EXT ALARM 3EXT ALARM 4EXT ALARM 5EXT ALARM 6EXT ALARM 7EXT ALARM 8EXT ALARM 9EXT ALARM 10EXT ALARM 11EXT ALARM 12EXT ALARM 13EXT ALARM 14 RJ2 P11 P2 P12 P3 P13 P4 P14 P5 P15 P6P7P8P9 Note: External Alarmsare TTL type levels. 0= fault1= clear 1A0071 Connector Board Additional Sense Boards as needed Always terminate last board. 1A0070 TEMP SENSE I2C I2C P1P2P3P4P5P6P7P8P9 CONNECT TO PIN 1+5V FROM INT REGDC PWR IN (29-32V)GNDALC (0V TO 5V)GNDN/AR1 (TOP OF POT)SHUTDOWN J1 1A0068-1 Current/ Voltage Sense Final Current Mon (0 - 2V) Final Voltage Mon (0 - 2V) PA1KC-50 DB9 P1 PA1A GND PA5 PA2A PA1B SD PA2B P6 P5 P7 P4 P3 P2 J5 220 AC Fan 330 CFM Fan Power Ground HS Mon Interlock +32V Monitor 5 VDC +50 VDC +32 VDC +32 VDC +32 VDC 220 VAC Gnd Status Display Assy 1A0035 RF IN RF OUT MFA1PAU-50 BLOCK DIAGRAM DC Amps DC Volts Meter Shunt 100 mv FS RRSI 50VDC 2KW Power Supply Power Supply Module Housing Assy Power Amplifier Module 220VAC 220VAC ON\OFF SW N Connector -5VDC AUX Inhibit LED’s JHC 9/21/10 REV 1 SIZE FSCM NO. SCALE SHEET DWG NO. REV Pineapple Technology, Inc. Rocklin, CA PA1K-50 Amplifier Assy BLOCK DIAGRAM Gain and Phase Matching Power Distribution Module 1A0025 Assy RF IN DB9 J31 RF OUT 1A5004 PC9601B PC9022B 2-Way InputSplitter 2-Way In-phase Combiner Circulator Heat Sink L Heat Sink R TS2 TS3 DX25U-50 Driver +50 VDC +50 VDC +50 VDC +50 VDC +50 VDC +50 VDC GROUND Shutdown Line (SD) P1 PA1BP6 PA1AP5 SD P8 +VDCP9 NCP7 PA2BP4 GNDP3 PA5P2 PA2A A MFA2PA-50FrontPanelInterface J26 J25 J24 J23 J22 J29 FIT 1of1 B PA2-B PA1-B PA2-A PA1-A 1A0306 1A0306 1A5019 PA2 1A5019 PA1 180250-50T250W 50 Ohm 180250-50T250W 50 Ohm 1A0304 1A0304 CTA2026/26A 180500-100R500W 100 OHM 310013 310013 A A A A AA SIZEFSCM NO. SCALE SHEET DWG NO.REV Pineapple Technology, Inc. Rocklin, CA ADP1000 BLOCK DIAGRAM 110 VAC FWD PWR 20 dbm N/A PA1 PA2 PA3 PA4 PA5 PA6PS VOLTS PFWD P RFL P AURAL AUX1 AUX2 REFL PWR 20 dbm PA2 Input PA1 Input METER ADP1000 MONITOR RC8 OPTIONAL REMOTE STATUS AND CONTROL SUB ASSY SW RF Sample { { { DB9 P1 DC VOLTAGE DC CURRENT PHONE LINE P2 P3 P4 P5 P6 P7 P8 P9 Input Selector Switches FWD PWR (Analog Meter) Brown wire NOT USED Red Wire NOT USED Orange Wire GND (Command/Status) Yellow Wire SHUTDOWN Green Wire AURAL PWR (Analog Meter) Blue Wire RFLD PWR (Analog Meter) Violet Wire NC Slate Wire NC Black Wire

PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 1 TEST REPORT PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U DIGITAL TV TRANSMITTER TECHNICAL REPORT The following information is provided to support the technical performance of the Pineapple Technology, Inc. DTXPRO-800U transmitter. The information is supplied for broadcast TV service according to applicable portions of FCC Rule Parts 73 and 74. The information in this report 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 FCC Rule 74.794. 4. Measurement of cabinet radiation for spurs and harmonics as specified in FCC Rule 2.1053 and Rule 2.1057. Measurements for these parameters were conducted at power output levels of both 800 watts and 400 watts. Measurements were taken at the center frequency of 605 MHz (TV channel 36) however this transmitter is capable of operation between 470 MHz (TV channel 14) and 608 MHz (TV channel 36) and between 614 MHz (TV channel 38) and 806 MHz (TV channel 69) with the same integral-components/circuitry. The test equipment used for the measurements on these following pages is listed at the end of the test report secton. PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 2 Power Output Measurements The equipment was configured as below shown in Figure 1. The loss through the directional coupler was calibrated at the channel center frequency of 201 MHz. Average power was read on the Agilent E4418B Power Meter. Setup for Output Power and Spurs and Harmonics Measurements The loss of the directional coupler was calibrated to be 52 dB. PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 3 Measurement Of Nominal Transmitter Power The transmitter was energized in the test configuration above and the power was read on the Agilent E4418B Power Meter. The indicated reading is shown below. Calculation of Output Power: An offset of 52dB, equal to the directional coupler loss, entered into the E4418B allows direct display of output power in watts average power. Measured transmitter final voltage is 50VDC and final current is 70 amps. PINEAPPLE TECHNOLOGY, INC. DTXPRO-800U TEST RESULTS AND MEASUREMENTS 4 Low Power Operation The transmitter was energized in the test configuration above and the power was read on the Agilent E4418B power meter. The indicated reading is shown next. Calculation of Output Power: An offset of 52dB, equal to the directional coupler loss, entered into the E4418B allows direct display of output power in watts average power. Measured transmitter final voltage is 50VDC and final current is 50 amps.

PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AND MEASUREMENTS Emission Mask Compliance To determine emission mask compliance the test equipment configuration shown on Figure 1 and Figure 2 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. Step 1: The transmitter was energized at 800 watts on channel 36 (center frequency of 605 MHz) as calculated by the insertion loss of the directional coupler and the reference was established on the spectrum analyzer (using the channel power measurement mode). Page 1 PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AND MEASUREMENTS Emission Mask Compliance Step 2: Measure the first four 500 kHz sub‐bands on each side of the desired channel. For this part of the measurement, the stop band filter was not necessary. The attenuator on the spectrum analyzer was adjusted so that it was not being overloaded. Once the first four sub‐bands were measured, the signal was close to the noise floor. Screenshots 2 and 3 show the spectrum on either side of the desired channel as an example of the measurements. Screenshot 1 ‐ Channel power measured at 605 MHz Page 2 PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AND MEASUREMENTS Emission Mask Compliance Screenshot 2 Lower sideband spectrum measured using channel power mode Center frequency = 601.75 MHz Sub Band ‐1 Screenshot 3 Lower sideband spectrum measured using channel power mode Center frequency = 608.25 MHz Sub Band +1 Page 3 PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AND MEASUREMENTS Emission Mask Compliance Step 3: Install the band stop filter in the path from the coupler to the spectrum analyzer and reduce the attinuation so that the emissions in the remaining sub‐bands could be measured. The band stop filter frequency response was determined using a network analyzer. The insertion loss at the center of each of the twelve 500 kHz segments on either side of the main channel was tabulated. The band stop filter response is shown below as Plot 1. Plot 1 Page 4 PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AND MEASUREMENTS Emission Mask Compliance The first step of the procedure optimized the level of the spectrum analyzer dynamic range ensuring the noise floor was below the value assumed if the transmitter spectrum just met the limits of the emission mask. Once that was done, the spectrum analyzer attenuator was not changed and the channel power mode was engaged to measure each of the remaining 500kHz segments (on both sides of the desired channel) using the center frequency of that segment. The final step was to make any adjustments necessary for the proximity of the noise floor and to take into account the stop band filter loss in that order and record the values in the table. Then those recorded power levels were subtracted from the total power in the desired channel and values were tabulated to determine if they met the emission mask. The table with the corrected emission mask measurement values is presented below. The transmitter emissions met the requirements as indicated by comparison with the FCC Stringent Emission Mask. Lower Adjacent Channel Measurements (800 Watts Average) Channel36Center Frequency605 CenterFreq 6MHz Channel PowerdBm 500kHz Spectrum Analyzer Noise Channel Power 500kHz Measured Channel Power Stop Band FilterGain 500kHz Channel Power Corrected ForNoise 500kHz Channel Power Corrected For Stop BandFilter Sub Band Power FCC Mask Limit Sub‐band Center Freq MHz Power dBm (0dB DTV) Power dBm Power dBm Filter Gain dB For Noise Floor Band Filter dBm Power dB DTV Limit dB DTV ‐1601.758.7‐61.6‐44.6‐‐‐‐**‐‐‐‐‐ ‐53.3‐47.0 ‐2601.258.7‐61.6‐56.4‐‐‐‐**‐‐‐‐‐ ‐65.1‐49.9 ‐3600.758.7‐61.6‐60.7‐‐‐‐**‐‐‐‐‐ ‐69.4‐55.6 ‐4600.258.7‐61.6‐60.4‐‐‐‐**‐‐‐‐‐ ‐69.1‐61.4 ‐5599.758.7‐95.278.1‐4.14**82.273.5‐67.1 ‐6599.258.7‐95.2‐80.0‐3.65**‐76.4‐85.1‐71.9 ‐7598.758.7‐95.2‐82.7‐3.39**‐79.3‐88.0‐76.0 ‐8598.258.7‐95.2‐85.8‐3.17**‐82.6‐91.3‐76.0 ‐9597.758.7‐ 95.2‐89.5‐3.00**‐86.5‐95.2‐76.0 ‐10597.258.7‐95.2‐93.1‐2.80**‐90.3‐99.0‐76.0 ‐11596.758.7‐95.2‐95.3‐2.63**‐92.7‐101.4‐76.0 ‐12596.258.7‐95.2‐95.5‐2.48**‐93.0‐101.7‐76.0 ABCDEFGHIJ ** Noise floor proximity correction was not necessary to meet the mask and was not computed here. H = E‐FI = E‐C (sub band 1 thru 4)I = H‐C (sub band 5 thru 12) Page 5 STOP BAND FILTER USED BELOW THIS LINE PINEAPPLE TECHNOLOGY, INC.DTXPRO-800U TEST RESULTS AN…

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