Instruction Manual Innovator HX Series Digital UHF Solid State Transmitter Volume 1 System and Exciter/Control AXCERA, LLC 103 FREEDOM DRIVE • P.O. BOX 525 • LAWRENCE, PA 15055-0525 USA (724) 873-8100 • FAX (724) 873-8105 www.axcera.com • service@axcera.
Innovator HX Series Digital UHF Transmitter Table of Contents TABLE OF CONTENTS CHAPTER 1 INTRODUCTION SECTION PAGE 1.1 Manual Overview ...................................................................................1-1 1.2 Assembly Designators ............................................................................1-1 1.3 Safety ..................................................................................................1-1 1.4 Contact Information.............................................
Innovator HX Series Digital UHF Transmitter Table of Contents TABLE OF CONTENTS (continued) SECTION CHAPTER 4 CIRCUIT DESCRIPTIONS PAGE 4.1 (R1) Control/Exciter Cabinet Assembly ....................................................4-1 4.1.1 Dual Peak Detector Board .............................................................4-1 4.1.2 Serial Loop-Thru Board .................................................................4-1 4.2 Driver/Amplifier Chassis Assembly .........................................
Innovator HX Series Digital UHF Transmitter Table of Contents TABLE OF CONTENTS (continued) APPENDICES APPENDIX A SYSTEM SPECIFICATIONS APPENDIX B SYSTEM DRAWINGS AND PARTS LISTS APPENDIX C CONTROL CABINET DRAWINGS AND PARTS LISTS APPENDIX D UHF DRIVER/AMPLIFIER ASSEMBLY DRAWINGS AND PARTS LISTS Volume 1, Rev.
Innovator HX Series Digital UHF Transmitter Table of Contents LIST OF FIGURES FIGURE PAGE 1-1 Brady Marker Identification Drawing.................................................1-1 2-1 2-2 Driver/Amplifier Chassis Assembly Front View ...................................2-3 Driver/Amplifier Chassis Assembly Rear View ....................................2-8 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 1 kW Minimum Ventilation Configuration...........................................
Innovator HX Series Digital UHF Transmitter Table of Contents LIST OF TABLES TABLE 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 PAGE HX Series Trays and Assemblies.......................................................2-3 Controller/Power Supply Front Panel Display .....................................2-4 Controller/Power Supply Front Panel Status Indicators .......................2-4 Controller/Power Supply Front Panel Control Adjustments...................2-5 Power Amplifier Front Panel Status Indicators..........
Innovator™ HX Series Digital UHF Transmitter Chapter 1, Introduction Chapter 1 Introduction The InnovatorTM HX Series Digital UHF Transmitter is comprised of two cabinet types, the exciter/control cabinet and the UHF amplifier cabinet. The InnovatorTM HX Series Transmitter includes one or more UHF Amplifier cabinets depending on the power configuration ordered. interconnect drawings provided in the appendices.
Innovator™ HX Series Digital UHF Transmitter Chapter 1, Introduction Products manufactured by Axcera are designed to be easy to use and repair while providing protection from electrical and mechanical hazards. Listed throughout the manual are notes, cautions, and warnings concerning possible safety hazards that may be encountered while operating or servicing the product. Please review these warnings and familiarize yourself with the operation and servicing procedures before working on the product.
Innovator™ HX Series Digital UHF Transmitter Chapter 1, Introduction When equipment is sent to the field on loan, an 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 an RMA# to allow for the proper routing of the exchanged hardware.
Innovator™ HX Series Digital UHF Transmitter Chapter 1, Introduction F WARNING!!! × HIGH VOLTAGE Ø 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™ HX Series Digital UHF Transmitter Chapter 1, 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™ HX Series Digital UHF Transmitter Chapter 1, Introduction dBm, dBw, dBmV, dBµV, & 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™ HX Series Digital UHF Transmitter Chapter 1, 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™ HX Series Digital UHF Transmitter Chapter 1, Introduction RETURN LOSS VS. VSWR 0 -10 -20 R E -30 T U R N dB L O S S -40 -50 -60 -70 1.001 1.01 1.1 VSWR Volume 1, Rev. 0 1-8 2.
Innovator™ HX Series Digital UHF Transmitter Chapter 1, Introduction ABBREVIATIONS/ACRONYMS AC Alternating Current IF Intermediate Frequency AFC Automatic Frequency Control LED Light emitting diode ALC Automatic Level Control LSB Lower Sideband AM Amplitude modulation MPEG Motion Pictures Expert Group AGC Automatic Gain Control O/P Output PLL Phase Locked Loop PCB Printed circuit board QAM Quadrature Amplitude Modulation ATSC Advanced Television Systems Committee AWG American wi
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections Chapter 2 System Description and Remote Control Connections 2.0 System Overview The exciter is equipped with a high-speed digital signal processing system that monitors not only the incoming digital video signal but also the amplified RF signal before it is filtered and after it is filtered.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections W 3 amp cab) is cabled to the RF Amplifier Cabinet or to a 2 way or 3 way splitter in multi-amplifier configurations. The RF input, (+27 dBm, 500 mW), from the Exciter or the two way or three way splitter connects to the Amplifier Cabinet at the (A14) 2 Way Splitter in an eight amplifier assembly cabinet. Each output of the 2 Way Splitter is split by another 2 Way Splitter, creating four outputs.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections 5 kW, the output of the amplifier cabinet connects directly to the (A41) coupler assembly and then to J1, the RF input jack on the (A42) DTV mask filter assembly. In 5kW and higher transmitters, the combined output of the (A40) combiner, at a 3-1/8” connector, is cabled through (A41) a coupler assembly to J1 the RF input jack on the (A42) DTV mask filter assembly.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections 2.4 Exciter Amplifier Chassis Assembly, HX Series, {(1305801, 110 VAC) or (1305555, 220 VAC); Appendix D} 2.4.1 (A4) Control/Power Supply Module Assembly (110 VAC, 1301936 or 220 VAC, 1303229; Appendix D) The Digital HX Series exciter driver assembly is made up of the modules and assemblies as shown in Figure 2-1 and listed in Table 2-1.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections Table 2-4. Controller/Power Supply Control Adjustments POTENTIOMETERS DESCRIPTION DISPLAY CONTRAST Adjusts the contrast of the display for desired viewing of screen. 2.4.2 (A6) Exciter Power Amplifier Module, UHF (1306019; Appendix D) the Axciter Upconverter is passed through the attenuator, (+6 to +10.8 dBm), and enters the module at J24.
Innovator™ HX Series Digital UHF Transmitter Table 2-6. Power Amplifier Control POTENTIOMETERS AVERAGE CAL Adjusts the FORWARD CAL Adjusts the REFLECTED CAL Adjusts the Chapter 2, System Description and Remote Control Connections Adjustments DESCRIPTION gain of the Average Power monitoring circuit gain of the Forward Power monitoring circuit gain of the Reflected Power monitoring circuit Table 2-7.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections transmitter from entering the operate mode. These conditions are: • • transmitter room. While the electronics have been designed to function even if covered with dust, a heavy buildup of dust, dirt, or insects will affect the cooling of the components. This could lead to a thermal shutdown or the premature failure of the affected module. Power Amplifier heat sink temperature greater than 78°C.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections of the chassis assembly. If remote connections are made to the transmitter, they must be made through plugs TB30 and TB31 at the positions noted on the transmitter interconnect drawing and Table 2-8. TB30 and 31 are 18 position terminal blocks that are removable from their sockets to make connections easier. Just grasp and pull the connector straight out.
Innovator™ HX Series Digital UHF Transmitter Chapter 2, System Description and Remote Control Connections Signal Name Pin Designations Signal Type/Description RMT Transmitter Set to Operate CMD TB30-6 Discrete Open Collector Input - A pull down to ground on this line indicates that the transmitter is to be placed into the operate mode.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Chapter 3 Site Considerations, Installation and Setup Procedures Table 3-1: HX Series Transmitter AC Input and Transmitter Voltage 120 VAC (1 connection) Less than 5 kW 480 or 208 VAC, 3 phase (2 cabinets) (2 connections) & 120 VAC (1 connection) 120 VAC (1 connection) 5 - 10 kW 480 or 208 VAC, 3 phase (3 cabinets) (4 connections) & 120 VAC (1 connection) 120 VAC (1 connection) 10-15 kW 480 or 20
Innovator™ HX Series Digital UHF Transmitter heat of summer. This section provides planning information for the installation and set up of the transmitter. The AC input and current requirements for HX Series transmitters are shown in Table 3-1. Check that your site has the needed power requirements. NOTES: The transmitter is factory set for operation using one 120 VAC to the Control/Exciter cabinet and two 480 VAC or 208 VAC, 3 phase and one 120 VAC connections to each UHF Amplifier Cabinet.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures the cooling can be accomplished by a 1 ton air conditioner. day, a temperature-differential sensor that controls a small heater should be installed. This sensor will monitor inside and outside temperatures simultaneously. If the inside temperature falls to within 5° F of the outside temperature, the heater will come on.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Figure 3-1. Typical Transmitter Air Flow Configuration 3.2 Unpacking the Control/Exciter Cabinet, Amplifier Cabinet(s), the RF Combiner, if present, and the DTV Mask Filter While completing the installation of the transmitter, refer to the floor plan for your site for the location of the cabinets, combiner, if present, and mask filter.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures gives access to the CD and floppy disk drives, mounted behind the flip down front panel of the computer. Remove the straps that hold the amplifier cabinets to the shipping skids and slide them from the skids. Remove the plastic wrap and foam protection from around the cabinets.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures 3.3.1 Exciter/Control Cabinet The Exciter/Control Cabinet is shipped with all assemblies installed. The driver/amplifier modules are mounted to the chassis assembly with slides that are on the top and the bottom of the modules. There are two thumb screws on the front panel that hold each of the modules in place.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures The AC input and current requirements for HX Series transmitters are as given in Table 3-1 located on page 1 of this chapter. The AC Inputs to the cabinets of the transmitter connect to the terminal blocks located toward the rear, right side near the top of the control/exciter cabinet and located toward the rear, left side near the top of each amplifier cabinet.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures MHz from J12 on the Axciter connects to the 10 MHz input jack J10 on the rear of the Driver/Amplifier assembly. Refer to the table and description that follows for detailed information on the input connections to the driver/amplifier assembly.
Innovator™ HX Series Digital UHF Transmitter Port J34 J40 J41 Type RJ-45 BNC SMA TB30 TB31 Termination Termination Chapter 3, Site Considerations, Installation and Setup Procedures Function System RS-485 Serial 1 GHz Input (From Axciter) Downconverter RF Input (From Relay) Remote Control & Monitoring Remote Control & Monitoring Impedance CAT5 50O 50O N/A N/A NOTE: Bolded Items are used in this configuration. 3.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures TEMP: This illuminates Green when the temperature of the heatsink in the PA is below 78°C. 3.6.2 Front Panel Screens for the Transmitter using the Driver/ Amplifier Chassis Display MOD OK: This illuminates Green when the PA module is operating and has no faults, Red if there is a fault.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures with 'ON' and the forward power values are displayed. An operator can change the transmitter from STANDBY to OPERATE by pressing the right most button on the front panel display. Pushing the SPL button will display the two splash screens. If the ↓ key is activated the display changes to Menu 11, the System Error List Access Screen.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Table 3-9: Menu 20 - Error List Display Screen This screen of the transmitter allows access to the system faults screens. Fault logging is stored in non-volatile memory. The transmitter's operating state can not be changed in this screen. The 'CLR' switch is used to clear previously detected faults that are no longer active.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Table 3-12: Transmitter Device Parameters Detail Screens System Parameter Component Axciter Details Upconverter Details System Control Details Driver PA Details Amplifier Cabinet 1 Details Volume 1, Rev.
Innovator™ HX Series Digital UHF Transmitter System Component Chapter 3, Site Considerations, Installation and Setup Procedures Parameter Normal Faulted (Blinking) RF OUTPUT Enabled or Disabled N/A POWER SUPPLY x.xV N/A DRIVER FORWARD POWER xxx% N/A FINAL FORWARD POWER xxx% N/A FINAL REFLECTED POWER xxx% N/A CURRENT 1 xx.xA N/A CURRENT 2 xx.xA N/A Amplifier Cabinet 1 Module 1 CURRENT 3 xx.xA N/A Details CURRENT 4 xx.xA N/A CURRENT 5 xx.xA N/A CURRENT 6 xx.xA N/A CURRENT 7 xx.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures To return to the previous Menu to make corrections, the two buttons located under the RETURN must be pushed simultaneously. Upon returning to the previous Menu the correct input must be entered and the above procedure repeated, this time accepting the changes Accept or Return to previous Menu Screen Pushing these two buttons Simultaneously will accept the change.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Table 3-17: Menu 40-5 - Transmitter Set-up: Serial Address Screen This screen allows the user to set the serial address of the transmitter. The default address is 5. This value and all other set-up parameters are stored in non-volatile memory. Table 3-18: Menu 40-6 - Transmitter Set-up: System Forward Power Calibration This screen is used to adjust the calibration of the system's forward power.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Table 3-21: Menu 40-14 - Transmitter Set-up: Maximum Reflected Power Fault Threshold This screen is used to set the maximum reflected power fault threshold. When the transmitter is operating, it must not operate above this value otherwise the system will slowly begin to reduce the forward output power.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures 3.6.3 Front Panel Touch Screens for the UHF Transmitter shown on the following pages. Your screens may differ form these examples.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Figure 3-9 Amplifier Cabinet and Transmitter Configuration Screen Shown in the above figure is the control screen for the Amplifier Cabinet of the HX Series Transmitter. The cabinet is selected in the upper left quadrant. In the above display, the Amplifier Cabinet is selected. The lower left quadrant displays the selected module and displays the parameters for that module.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Figure 3-10 Amplifier Cabinet Screen w/System Error List The above screen is the Amplifier Cabinet control screen. The desired amplifier cabinet is selected in the upper left quadrant, it will highlight. In the above display, Amplifier Cabinet #1 is selected. The lower left quadrant displays the selected module and displays the parameters for that module.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Figure 3-11 Control Cabinet Screen w/System Error List In the above screen, the four quadrants are as described in the previous figures. On this screen, in the Lower Right Quadrant, is displayed the Transmitter System Error List. Listed are three separate errors with the dates and times the errors occurred.
Innovator™ HX Series Digital UHF Transmitter Chapter 3, Site Considerations, Installation and Setup Procedures Figure 3-12 Serial Port Configuration Screen The above screen is the Serial Port Configuration Screen. This screen shows a local host at the TCP/IP Address 155.226.168.201 and no remote clients connected at ports 6111 thru 6114. This screen displays, in the upper left quadrant, the cabinets and which cabinet is selected, in this case the Control Cabinet.
Innovator™ HX Series Digital UHF Transmitter 3.6.4 Operation Procedure If necessary, connect to the transmitter to the antenna. Check that the RF output is 100% and if needed adjust the ALC Gain of the Axciter to attain 100% RF Output. The power raise/lower settings, in the menus, are only to be used for temporary reductions or increases in power. Volume 1, Rev.
Innovator™ HX Series Digital UHF Transmitter Chapter 4, Circuit Descriptions, Control/Exciter Cabinet Assembly Chapter 4 Circuit Descriptions 4.1 (R1) Control/Exciter Cabinet Assembly (1306879; Appendix C) U1D is split with one part connected to J34 Forward Power Metering Output #1. The other output of U1D is connected to J3-6 Forward Power Metering Output #2. The Exciter/Driver System Control Cabinet contains a computer with a touch screen, keyboard and mouse and a UPS power supply.
Innovator™ HX Series Digital UHF Transmitter 4.2 (A3) Driver/Amplifier Chassis Assembly (1305801, 110 VAC or 1305555, 220 VAC; Appendix D) This assembly is mounted in Rack 1 the Control/Exciter Cabinet. The assembly contains, as mounted in the assembly from left to right, (A1) the Downconverter Module, (A5) the Upconverter Module, (A4) the System Controller/Power Supply Module, and (A6) the Power Amplifier/Driver Module.
Innovator™ HX Series Digital UHF Transmitter this circuit is operational, the Green LED DS4, mounted on the board, will be lit PS5 protects the +12 VDC 2 Amp circuits for the Upconverter through J62 pins 17, 18, 19 and 20. If this circuit is operational, the Green LED DS5, mounted on the board, will be lit PS6 protects the +12 VDC 2 Amp circuits for the Remote through J63 pins 17, 18, 19 and 20. If this circuit is operational, the Green LED DS6, mounted on the board, will be lit 4.2.1.1.
Innovator™ HX Series Digital UHF Transmitter Switch SW1, transmitter operation select, is used to select either transmitter operation or exciter/driver operation. When the contacts of SW1 are closed, transmitter operation is selected and the power monitoring lines of the transmitter’s power amplifier are routed to the system power monitoring lines. 4.2.1.2.2 Schematic Page 2 U9 is a non-inverting transceiver IC that provides 2 way asynchronous communication between data busses.
Innovator™ HX Series Digital UHF Transmitter Spare AIN 1. For these four circuits, the input value is divided in half before it is applied to an op-amp. The serial potentiometer is used to adjust the output signal level to between 80 and 120% of the input signal level. Serial data, serial clock and serial pot enables are supplied by the microprocessor to the dual serial potentiometer ICs.
Innovator™ HX Series Digital UHF Transmitter 4.2.1.4 (A2) Switching Power Supply Assembly The power supply module contains a switching power supply, an eight position terminal block for distributing the DC voltages, a three position terminal block to which the AC Input connects. Jack J1 connects to the Control Board and supplies DC OK, at J1-4 & 3, and AC OK, at J1-2 & 1, status to the control board. A Power Supply enable connects from the control board to the power supply at V1-6 & 7.
Innovator™ HX Series Digital UHF Transmitter 4.2.2.3 (A3) UHF Module Assembly, RF Module Pallet, Philips (1300116; Appendix D) The UHF Module Assembly, 250-watt module is a broadband amplifier for the frequency range 470 to 860 MHz. The amplifier is capable of delivering an output power of ≈70 Wrms. The amplification is approximately 13 dB. The amplification circuit consists of the parallel connected push-pull amplifier blocks V1 and V2 operating in class AB.
Innovator™ HX Series Digital UHF Transmitter U2 is a serial to RS-485 driver IC. U5 is a watchdog IC used to hold the microprocessor in reset, if the supply voltage is less than 4.21 VDC. U5 momentarily resets the microcontroller if Pin 6 (ST) is not clocked every second. A manual reset switch is provided but should not be needed. In the Upper left corner, U1 is used to determine where the amplifier control board is located.
Innovator™ HX Series Digital UHF Transmitter temperature of the heat sink. It connects to J6 pins 1 & 2 on the board and is wired to the comparator IC U13B. If the temperature increases above 75°C the output will go Low that is used as a temperature fault output, which generates a Fault alert and disables the Amplifier. 4.2.2.5.4 Schematic Page 3, Digital and Reflected power detector sections of the board. A Digital Power Sample enters the board at the SMA Jack J3 and is split.
Innovator™ HX Series Digital UHF Transmitter The level of the output power measurements is completed through software. Only the Aural Null and Offset Null need to be adjusted through front panel pots. Volume 1, Rev. 0 Chapter 4, Circuit Descriptions, Control/Exciter Cabinet Assemblies This completes the circuit description of the Power Amplifier Module Assembly and the entire Driver/Amplifier Assembly.
Innovator® HX Series Digital UHF Transmitter Chapter 5,Detailed Alignment Procedures Chapter 5 Detailed Alignment Procedures 5.1 System Preparation module will slide out. After removal of the failed module, slide the replacement module in place and make certain it connects to the backplane board. Tighten the two grip lock connectors. This transmitter was aligned at the factory and should not require additional adjustments to achieve normal operation.
Innovator® HX Series Digital UHF Transmitter Chapter 5,Detailed Alignment Procedures your system. While performing the alignment, refer to the Test Data Sheet for the transmitter and compare the final readings from the factory with the readings on each of the modules. The readings should be very similar. If a reading is way off, the problem is likely to be in that module. 5.
Innovator® HX Series Digital UHF Transmitter Chapter 5,Detailed Alignment Procedures Figure 5-1: Axciter Upconverter Main Screen 5.4.2 Setting up of AGC 2 5.4.3 Setting up of Overdrive Threshold On the Axciter Upconverter Screen set AGC 2 to 1.7 Volts, by selecting 5 on the key board entry. This will cause a detail screen to appear prompting you to enter a number value. Monitor the AGC 2 Gain Value on the screen and increase or decrease the value of the number entered until the monitored reading is 1.
Innovator® HX Series Digital UHF Transmitter Chapter 5,Detailed Alignment Procedures samples to get them within the desired range. Measure with a VOM, TP31-14, Red, and TP31-12, Black, at the terminal block TP31 located on the rear chassis of the (A3) HX Series Driver/Amplifier Chassis Assembly. Adjust R9, Forward Calibration Adjustment, on the (A4) Dual Peak Detector Board (1159965) for a reading of .8VDC on the VOM.
Appendix A System Specifications
Innovator HX Series High Power Solid State UHF & VHF Transmitters With over twenty years of experience in the design and manufacture of solid state transmitters, Axcera continues to provide the latest technology, enabling our customers to focus on the future. The Innovator HX high power solid state transmitter is available in power levels up to 100kW analog and 60 kW DTV using the latest control, signal generation and RF amplifier technology, ensuring long-term support.
Innovator HX Series High Power Solid State UHF & VHF Transmitters promising cooling efficiency, resulting in a very small overall transmitter footprint. This unique low-pressure system provides higher efficiency and less blower noise than other designs. By providing low junction temperatures for the transistor devices, this cooling system ensures that high reliability and optimum device life are easily achieved.
Innovator HX Series Digital High Power Solid State UHF & VHF Transmitters Typical Single PA Cabinet Architecture Model suffix denotes actual number of amplifiers PA Cabinet To Antenna PA SMPTE 310 In PA PA Auto Switcher Modulator PA PA Splitter Network Harmonic Filter Combiner PA Bandpass Filter PA Optional Dual Exciter/Switcher Output Switch Wattmeter PA Optional Station Load Optional Typical Multiple PA Cabinet Architecture Model suffix denotes actual number of amplifiers PA Cabine
Innovator HX Series High Power Solid State UHF & VHF Transmitters Performance General Frequency Range1 HLV HHV ` HU 54 to 88 MHz 174 to 216 MHz 470 to 806 MHz Maximum Altitude 8500 ft.
Appendix B System Drawings
Innovator™ HX Series Digital UHF Transmitter Appendix B, System Drawings Appendix B Drawing List HU5000AD Transmitter System Block Diagram .................................1310994 HU5000AD Transmitter System Interconnect....................................1310995 Volume 1, Rev.
Appendix C Control Cabinet Drawings
Innovator™ HX Series Digital UHF Transmitter Appendix C, Control Cabinet Drawings Appendix C Drawing List Digital UHF Control Cabinet, HX Series Control Cabinet Single Exciter Block Diagram......................................... 1308241 Control Cabinet Single Exciter Interconnect ........................................... 1307571 Control Cabinet AC Interconnect........................................................... 1307037 Dual Peak Detector Board Schematic .........................................
Appendix D UHF Exciter/Driver Assembly Drawings
Innovator™ HX Series Digital UHF Transmitter Appendix D, UHF Exciter/Driver Drawings Appendix D Drawing List Exciter/Driver Chassis Assembly, 110 VAC, HX Series Interconnect....................................................................................... 1305554 Backplane Board, HX Series, Axciter Schematic ..........................................................................................
