Instruction Manual Innovator, CU5-1800BTD/BRD, ATSC Transmitter/ Regenerative Translator Axcera, LLC 103 Freedom Drive, P.O. Box 525 Lawrence, PA 15055-0525 USA PHONE: 1-724-873-8100 • FAX 1-724-873-8105 www.axcera.com • info@axcera.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Table of Contents Table of Contents Introduction ......................................................................................................1 Manual Overview ............................................................................................1 Assembly Designators .....................................................................................1 Safety ................................................................
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Table of Contents (A6-A2) BL871 Single Stage Amplifier Board (1311041)................................. 52 (A6-A3) Dual 878 Pallet Assembly (1310138) ............................................... 52 (A7) Output Detector Board (1308685 or 1312207 in the CU100BTD/BRD).......... 53 (A8) Control Card, Innovator CX (1312543) .....................................................
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction Introduction Manual Overview This manual contains the description of the Innovator CU5-1800BTD/BRD ATSC Transmitter/Regenerative Translator and the circuit descriptions of the boards, which make up the system. The manual also describes the installation, setup and alignment procedures for the system.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction Heed all Notes, Warnings, and Cautions – All of the notes, warnings, and cautions listed in this safety section and throughout the manual must be followed. Follow Operating Instructions – All of the operating and use instructions for the system should be followed. Cleaning – Unplug or otherwise disconnect all power from the equipment before cleaning. Do not use liquid or aerosol cleaners. Use only a damp cloth for cleaning.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction When equipment is sent to the field on loan, the RMA# is included with the unit. The RMA# is intended to be used when the unit is returned to Axcera. In addition, all shipping material should be retained for the return of the unit to Axcera. Replacement assemblies are also sent with the RMA# to allow for the proper routing of the exchanged hardware.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction WARNING!!! HIGH VOLTAGE DO NOT ATTEMPT TO REPAIR OR TROUBLESHOOT THIS EQUIPMENT UNLESS YOU ARE FAMILIAR WITH ITS OPERATION AND EXPERIENCED IN SERVICING HIGH VOLTAGE EQUIPMENT. LETHAL VOLTAGES ARE PRESENT WHEN POWER IS APPLIED TO THIS SYSTEM. IF POSSIBLE, TURN OFF POWER BEFORE MAKING ADJUSTMENTS TO THE SYSTEM.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction EMERGENCY FIRST AID INSTRUCTIONS Personnel engaged in the installation, operation, or maintenance of this equipment are urged to become familiar with the following rules both in theory and practice. It is the duty of all operating personnel to be prepared to give adequate Emergency First Aid and thereby prevent avoidable loss of life. RESCUE BREATHING 1. Find out if the person is breathing.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction dBm, dBw, dBmV, dBµ µV, & VOLTAGE EXPRESSED IN WATTS 50 Ohm System WATTS 1,000,000,000,000 100,000,000,000 10,000,000,000 1,000,000,000 100,000,000 10,000,000 1,000,000 100,000 10,000 1,000 100 50 20 10 1 0.1 0.01 0.001 0.0001 0.00001 0.000001 0.0000001 0.00000001 0.000000001 0.0000000001 0.00000000001 0.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction USEFUL CONVERSION FACTORS TO CONVERT FROM TO MULTIPLY BY mile (US statute) kilometer (km) inch (in) millimeter (mm) inch (in) centimeter (cm) inch (in) meter (m) foot (ft) meter (m) yard (yd) meter (m) mile per hour (mph) kilometer per hour(km/hr) mile per hour (mph) meter per second (m/s) pound (lb) kilogram (kg) gallon (gal) liter U.S. liquid (One U.S. gallon equals 0.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction RETURN LOSS VS. VSWR 0 -10 -20 R E T U R N -30 dB L O S S -40 -50 -60 -70 1.001 1.01 1.1 VSWR Instruction Manual, Rev. 0 8 2.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Introduction ABBREVIATIONS/ACRONYMS AC Alternating Current dBmV Decibel referenced to 1 millivolt AFC Automatic Frequency Control dBw Decibel referenced to 1 watt ALC Automatic Level Control FEC Forward Error Correction AM Amplitude Modulation FM Frequency Modulation AGC Automatic Gain Control FPGA Field Programmable Gate Array ARD A-line, Regenerative Translator, Digital Hz Hertz ATD A-line, Transmitter, Digital
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Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Unpacking and Installation Unpacking and Installation Unpacking Axcera certifies that upon leaving our facility all equipment was undamaged and in proper working order. It is imperative that all packages be inspected immediately upon arrival to verify that no damage occurred in transit to the site. Inspect all packages for exterior damage and make note of any dents, broken seals, or other indications of improper handling.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Unpacking and Installation in the system that extends above or to the side of the mounting rack, has sufficient clearance space. Refer to the custom racking plan for the system, if prepared, for detailed information. Tray Slide Installation If the system is pre-mounted in a cabinet skip this section. Locate the tray slides included in the installation material for your system.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Unpacking and Installation 230 VAC source. Refer to Table 1 for the voltage and current requirements for CXB Systems. Instruction Manual, Rev.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Unpacking and Installation Table 1: CXB Series Digital Systems Typical AC Input and Current Requirements. Power System O/P Power Voltage Current Consumption 115 VAC 1.6 Amps to the Cabinet CU5 10 Watts 180 Watts 230 VAC .8 Amps to the Cabinet 115 VAC 2.7 Amps to the Cabinet CU30 30 Watts 300 Watts 230 VAC 1.4 Amps to the Cabinet 115 VAC 4.2 Amps to the Cabinet CU50 50 Watts 475 Watts 230 VAC 2.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Port Type J11 9 Pos Male D J12 15 Pos Female D J13 RJ-45 J14 RJ-45 J15 Front Panel J16 Front Panel BNC 9 Pos Female D Unpacking and Installation Function Power Monitoring: Interface to System and external amplifier trays, if present. Also provides an interlock for the Reject Load (if used).
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Port Type J5 RJ-45 J8 Front Panel BNC Unpacking and Installation Function Impedance Serial data N/A RF Sample: Output Sample from Combiner thru Control Board. In a CU500, the sample level is approximately 70dB down from the output power level of the tray. 50Ω Refer to Figures 3 and 4, and Tables 2 and 3 for detailed information on the jacks and connectors.
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Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Initial On Site Turn On Procedure After the Innovator CXB Series tray or trays are installed and all input, output and AC connections are made, the system is ready for the initial on site turn on. Check that the output of the CU5, CU30, CU50, CU100, or CU125 tray is connected to an appropriate rated load or to the digital mask filter and the antenna for your system.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Typical System Operating Parameters Typical Operating Parameters for a CU3 Parameter Typical Reading Forward Power 100% Reflected Power <5% Power Supply Voltage 24 Volts Heatsink Temperature 20º to 30º F above ambient temperature Pin Attenuator Voltage 1 Volt to 5 Volts Typical Parameter Forward Power Reflected Power Power Supply Voltage Heatsink Temperature Pin Attenuator Voltage Operating Parameters fo
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Typical Problems, Indications and Causes Problem Indication No power to tray Operate/Standby and Enable LED indicators and LCD display are Off Loss of Input Signal Loss of Input on Modulator Menu Cause AC power cord not connected. Main AC to System missing. On/Off switch on back of tray Off. 10 Amp fuse (F1) blown. Power supply (A9) not operating Loss of input signal.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure If there is a fault occurring in the system, the Status LED on the front panel will flash RED as long as the fault is present. In addition, the menu will jump to the current fault on the display and blink this fault continuously, if the Jump to Fault screen is set to Yes.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Remote Connections Initial On Site Turn On Procedure J12 Figure 6: Rear View CU5 thru CU125 and the Driver for the CU250 & higher power The remote connections for the Innovator CXB Series system are made to the Remote 15 Pos Female “D” connector Jack J12 located on the rear panel of the tray.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Signal Name Pin Designations RMT System Aural Power Level J12-10 RMT System Reflected Power Level J12-11 RMT Input Status J12-12 RMT Fault Status J12-13 RMT Operate Status J12-14 RMT Ground J12-15 Instruction Manual, Rev. 0 Initial On Site Turn On Procedure Signal Type Analog Output - 0 to 4.0 V- This is a buffered loop through of the calibrated “System Aural Power”. Indicates the System Aural power.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure LCD Front Panel Screens A LCD display, located on the front of the Innovator CXB Series systems, displays, on screens, the current operating status of the system. When the tray is powered On, the LCD will initially display two splash screens.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Push and release the ENTER button again and the ENTER BUTTON SETS TO CHANGE MODE screen is displayed. Push and release the ENTER button again and the first set up menu, which is the SET UP MENUS OF CHASSIS VALUES screen is displayed. Push and release the DOWN Arrow button until the SET UP 8VSB DEMODULATOR screen is displayed.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 10.1: Transmitter/Translator Device Details Exciter Values Screen (BTD/BRD) This is the System Device Details Exciter Values Main Sub Screen. Push the ENTER button to access the Device Details Exciter Values submenus or push the DOWN Arrow to view the next main submenu, which is the 8VSB Demodulator Sub Menu. Table 10.1.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 10.1.8: AGC Auto/Manual Details Screen (BTD/BRD) This menu indicates if the AGC circuit is operating in Auto or Manual. Table 10.1.9: ALC Voltage Level Details Screen (BTD/BRD) This menu indicates the Auto ALC voltage setting.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 10.3: Transmitter/Translator 8VSB Modulator Details Screen (BTD/BRD) This is the System Device Details 8VSB Modulator Main Sub Screen. Push the ENTER button to access the Device 8VSB Modulator submenus or push the DOWN Arrow to view the next main menu, which is the Device Details IF Processor Main Sub Menu. Table 10.3.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 10.4.2: IF Processor Modulation Present Details Screen (BTD/BRD) This menu indicates if there is Modulation on the signal to the IF Processor. Pushing the Left Arrow will display the System Device Details IF Processor Values Main Sub Screen and then pushing the Down arrow will access the System Device Details Upconverter Main Sub Screen. Table 10.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 10.6: Downconverter Device Details Screen (BTD/BRD) This is the System Device Details Downconverter Main Sub Screen. Push the ENTER button to access the Device Downconverter submenus or push the DOWN Arrow to go back to the Device Details Exciter Values screen. Table 10.6.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 11.1: Chassis Values Main Set Up Menu Screen (BTD/BRD) This is the System Set Up Chassis Values Main Sub Screen. Push the ENTER button to access the Chassis Values submenus or push the DOWN Arrow to view the next Set Up Main Sub Screen, which is the Set Up 8VSB Demodulator Main Sub Screen. NOTE: Refer to the description in Table 11B for how to change the values on the following set-up screens.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 11.1.9: Chassis Values Reset Ethernet User Name Set Up Screen (BTD/BRD) When applicable, this screen is used to reset the username/password file of the Ethernet controller. If this operation is selected, ON, the username/password file is erased thus allowing any user to login at administrator level. Table 11.1.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 11.3.1: 8VSB Modulator MPEG Selection Set Up Screen (BTD/BRD) This screen allows the user to select between an internal or external source in the 8 VSB modulator. During the installation of the system, an off air signal may not be available to the modulator, therefore the user can set the source to INTERNAL to generate an 8 VSB signal inside the tray that can be used for set up.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Initial On Site Turn On Procedure Table 11.4.3: Upconverter LO Frequency Selection Screen (BTD/BRD) The transmit channel LO Frequency should not be changed, unless the system is being converted to a new frequency with an Offset. NOTES: Changes should only be made while the system is in standby. Contact Axcera Field Service at 1-724-873-8100 before changing values on this menu. This is the final Set Up Sub Menu.
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Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Description System Description The Innovator CXB Series Systems are of two different types. They are either Regenerative Translators, example: CU100BRD (1312187), or DTV Transmitters, example: CU100BTD (1312180). The Regenerative Translator (BRD) accepts an RF On Channel signal (-79 to –8 dBm) and converts it to a DTV RF On Channel output signal.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Description connected to the (A6) Amplifier Assembly (1312566) that is made up of (A6-A1) the 2 Stage UHF Amplifier Board, CU30 (1308784) and (A6-A2) the RF Module Pallet w/Philips transistors (1300116). The assembly has approximately 36 dB of gain.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Web Ethernet Interface Description (Optional) Innovator CXB Series Web Ethernet Interface The (Optional) Innovator CXB Series Web Ethernet Interface (1310183) allows for the monitoring and control of the Innovator CXB Series system without the need for special software on the remote computer. This option may not be included in your system.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Web Ethernet Interface Description Figure 8: Typical Ethernet Main Control/Monitoring Screen After logging in, the main control/monitoring screen is displayed, allowing operate and standby control and read back of the system parameters. Refer to Figure 8 for a typical main control/monitoring screen.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Web Ethernet Interface Description Figure 9: Typical Account Management Screen The Innovator CXB supports up to 5 different users. To add or change one of the accounts click the Add/Change button in the row of the account you want to modify, then enter the desired name, password, and administrator rights for the user and click save.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Web Ethernet Interface Description The Reset Ethernet TCP Configuration Screen, in the Set Up Menus on the LCD Display allows the user the option of resetting the TCP Configuration for the Ethernet. The Yes or No selection can be changed by pushing the Up or Down Button. After the selection has been made, the user needs to depress the right or left arrow and then the display will ask “PUSH ENTER TO ACCEPT CHANGES”.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions Circuit Descriptions of Boards in the CU5, CU30, CU50, CU100 & CU125 Systems (A1) 8 VSB Demodulator Board (1308275) - Only used with BRD operation Overview The 8 VSB demodulator assembly receives an off air 8 VSB signal on any VHF or UHF channel and demodulates this to an MPEG-2 transport stream that is per the SMPTE310M standard.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions Channel Coder The FPGA subsequently uses the SMPTE-310 clock and data as the input to the channel coder contained inside the FPGA. The channel coder is a series of DSP blocks defined by the ATSC standard for 8 VSB data transmission. These blocks include the data randomizer, Reed Solomon Encoder, data interleaver, trellis coder, and sync inserter.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions before it is applied to the rest of the board as +12VQ and +12VI. The -12 VDC SYS connects to J19A, B & C and to regulator circuit. The -12V SYS is filtered by L6, L7, C111 and C112 before it is applied to the rest of the board as -12VI and –12VQ. The +12V SYS also connects through the resistor R81 to provide +5V EXT to the rest of the board, and to the regulators U23 that provides +3.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions the ALC Auto position, between pins 2 and 3, or from pot R37, MAN GAIN, when S1 is in the Manual Gain position, between pins 1 and 2. In the pin diode attenuator circuit, changing the amount of current through the diodes by forward biasing them changes the IF output level of the board. By controlling the value of the voltage applied to the pin diodes, the IF signal level is maintained at the set level.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions The Port 1 output of Z3 connects from J11 through the W6 jumper to J12. The IF is connected to T5, the 1:4 impedance transformer input to the Quadrature circuit. External Quadrature Corrector stages may be connected between jacks J11 and J12.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions less attenuation and therefore increase the IF level that will compensate for the decrease in the output power level. If the ALC cannot increase the input level enough to satisfy the ALC loop, due to the lack of range, an ALC fault will occur. The fault is generated because U3C pin 9, increases above the trip point set by R47 and R50 until it conducts.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions temperature compensation for the two diodes in each of the in phase and quadrature precorrector stages. Mixer Mixer J6 IF Input J7 RF Output 1.1-1.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions External 10 MHz reference is present. The Red LED DS3 will light if the PLL for the 10 MHz oscillator is not locked.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions The VSWR cutback circuit is set so that the ALC circuit will start reducing RF drive once the Reflected power reaches a level of about 6% and will keep reducing the drive to maintain that level. U8A, U8B and their associated components, diode-or the metering voltages, which generates this cutback. The forward power is scaled to 2V = 100 % and the reflected power is scaled to 2V = 25%.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions connected to the final amps. The final amplification circuit consists of parallel-connected push-pull LDMOS amplifier circuits Q1 and Q3 operating in class AB each with approximately 14 dB of gain. The board uses a power supply voltage of 24V.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions output power of 100 Watts peak, with an amplification factor of approximately 13 dB. The amplification circuit consists of push-pull amplifier blocks V1 and V2, connected in parallel, operating in class AB. In order to match the impedance of the transistors to the characteristic impedance of the input and output sides, matching networks are placed ahead and behind the amplifier blocks.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions transistor operating 90 degrees out of phase of the other, which provides for a very good return loss across the UHF band on both the input and output of the board.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions (A9 & A10) Power Supplies used in CU5, CU30, CU50, CU100 & CU125 and Driver for CU250 & higher power Voltages for the operation of the boards in the tray are generated by (A9) a +5VDC and ±12VDC power supply and (A10) a +28VDC power supply for the CU30, a +30V supply for the CU50 and Driver for the CU250 and higher power, +39VDC for the CU100 & CU125, and +24VDC for the CU3.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions TP1 is equal to a 100% Forward Power reading on the meter. The SYS_FWD level connects to J9 on the board that is cabled to J11 on the exciter/driver tray for use in the control monitoring assembly. The RMT_FWD level connects to J10 on the board for use by remote control and monitoring. A sample of the reflected output power, from the external (A11) output coupler, enters the board at the SMA jack J8.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions sensing resistors and a differential input IC that supplies a voltage output that is proportional to the current for metering purposes. The +42VDC from the (A8) power supply connects to TB2 and TB4 on the board. The +42VDC from the (A9) power supply connects to TB8 and TB10 on the board. The +42VDC input at the TB2 input senses the current to the (A1) 878 output amplifier pallet through TB1 on the board.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Board Descriptions J5-8 on the control board. The +5VDC is produced when AC is connected to the tray and the CB1 and/or the CB2 circuit breakers are turned On. Either or both power supplies provides the +5VDC for use by the control board. The +42VDC needed by the amplifier modules on the heatsink assembly is generated by the (A8 & A9) power supplies.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure System Set Up Procedure This system was aligned at the factory and should not require additional adjustments to achieve normal operation. This Innovator CX Series system is of a tray design with multiple boards inside the tray. If a board fails, that board needs to be changed out with a replacement board. The failed board can then be sent back to Axcera for repair.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure S1 AUTO/MAN TP1 1.0VDC Figure 12: (A3) IF Pre-Corrector Board (1308796) Set Up of the IF Precorrector Board in the System Refer to Figure 12. Check that the Auto/Man switch S1 on the IF Pre-Corrector Board is in the Automatic ALC position. This is the normal operating position for the switch. The voltage at TP1 on the IF Pre-Corrector Board should be 1.0 VDC with 100% output power. Refer to Figure 13.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure R75 ALC ADJ J4 R38 OVERDRIVE THRESHOLD S1 AUTO/MAN R62 MAN ADJ Figure 13A: (A5) ALC Board (1308570) ALC Board Set-Up, Forward and Reflected Power Calibration for CU5, CU30, CU50, CU100 and CU125 Systems NOTE: If your system is a CU250 or higher power, refer to the next section for the forward and reflected power calibration procedures. Refer to Figure 13A.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure Refer to Figure 13A. Turn the output power down to 10% power with R62 on the ALC Board. Remove the output RF connector from J2 on tray and calibrate the reflected power to 10%, using R7, the Reflected Calibration pot, on the Output Detector Board. Refer to Figure 14. Re-connect the RF output connector to the tray and increase the power, in Manual gain using R62 on the ALC Board, to 115%.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure screen of the LCD display mounted on the Driver Tray. Disconnect the load or the antenna connected to the system. In the Amplifier Tray, on the Amplifier Control Board (1309822), adjust the Reflected Calibration Adjustment pot, R26, for a reading of 10% on the External Amplifier Reflected Forward Power screen of the LCD display mounted on the Driver Tray. Reconnect the load or the antenna to the system.
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator System Set Up Procedure Correction enable/disable jumper W4 on J13 are in the Enable position, between pins 2 & 3. Set up a spectrum analyzer with 30 kHz resolution bandwidth and 30 kHz video bandwidth to monitor the intermodulation products of the RF output signal of the Tray at J2. A typical 6 MHz digital spectrum is shown in Figure 16.
APPENDIX A Innovator, CU5-1800BTD/BRD, ATSC Transmitter/ Regenerative Translator Drawings
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Appendix A, Drawings and Parts List Innovator CXB Series System Drawing List Innovator CXB Series Regenerative Translator/Transmitter Systems CU5/30/50/100/125BRD Translator/BTD Transmitter Interconnect........... 1310876 CU5BRD Innovator 10 Watt Regenerative Translator CU5BRD/BTD Block Diagram ............................................................................. CU5BRD/BTD Interconnect ............................................
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator Appendix A, Drawings and Parts List NOTE: The following systems have external amplifier trays. CU250BRD/BTD Innovator 250 Watt Regenerative Translator/System (Consists of a CU50BRD/BTD Tray driving a CU250, 250 Watt Amplifier Tray) CU250BRD/BTD Block Diagram ......................................................................... CU250BRD/BTD Interconnect ............................................................................
Innovator CU5-1800BTD/BRD ATSC Transmitter/ Regenerative Translator APPENDIX B Specifications Sheet Instruction Manual, Rev.
INNOVATOR CX Low Power UHF ATSC Transmitter/Translator 5W - 1.8kW Axcera designed the Innovator CX to provide broadcasters with a compact, affordable and high quality transmitter that will meet their needs like no other solution on the market. This advanced low power transmitter line uses the latest LDMOS devices for broadband operation across the entire UHF band, and can be configured as a DTV transmitter or regenerative translator.
INNOVATOR CX DIGITAL Low Power UHF ATSC Transmitter/Translator 5W - 1.8kW Specifications Options General Output Parameters Standard ATSC Impedance 50 Ohms Bandwidth 6 MHz Test Signal Internal PRBS-23 Frequency Range2 470 to 862 MHz Frequency Stability w/ GPS 0.2 ppm (max. 30 day variation) 0.001 ppm Regulation of Output Power 3% SNR 32 dB (typical), 30 dB (min.
