DRS WJ-8611 Installation, Operation And Maintenance Manual

Digital vhf/uhf receiver

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INSTALLATION, OPERATION, AND

INTERMEDIATE LEVEL MAINTENANCE MANUAL

FOR THE

WJ-8611 DIGITAL VHF/UHF RECEIVER

P/N 181122-001, Revision T

DRS Technologies

DRS Signal Solutions, Inc.

700 Quince Orchard Road

Gaithersburg, Maryland 20878-1794

July 2008

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Page 1 INSTALLATION, OPERATION, AND INTERMEDIATE LEVEL MAINTENANCE MANUAL FOR THE WJ-8611 DIGITAL VHF/UHF RECEIVER P/N 181122-001, Revision T Copyright  DRS Signal Solutions, Inc. 1996 All Rights Reserved DRS Technologies DRS Signal Solutions, Inc. 700 Quince Orchard Road Gaithersburg, Maryland 20878-1794...
Page 2 PROPRIETARY STATEMENT This document and subject matter disclosed herein are proprietary items to which DRS Signal Solutions, Inc. retains the exclusive right of dissemination, reproduction, manufacture and sale. This document is provided to the individual or using organization for their use alone in the direct support of the associated equipment unless permission for further disclosure is expressly granted in writing.
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Page 5 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER LIST OF EFFECTIVE PAGES Page Number Description Revision Cover Proprietary/Warranty/Export Statement Customer Feedback Form Intentionally Blank List of Effective Pages List of Effective Pages List of Effective pages Intentionally Blank Revision Record viii...
Page 6 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER LIST OF EFFECTIVE PAGES (Continued) Page Number Description Revision 4-25 thru 4-32 Section Four Pages Section Cover 5-ii Intentionally Blank 5-1 thru 5-22 Section Five Page Section Cover 6-ii Intentionally Blank 6-1 thru 6-11...
Page 7 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER LIST OF EFFECTIVE PAGES (Continued) Page Number Description Revision 7-71 thru 7-72 Section Seven Pages 7-73 thru 7-74 Section Seven Pages A-i thru A-iv Appendix A A-1 thru A-3 Appendix A A-4 thru A-5...
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Page 9 Incorporated ECO 038860. 8/98 Incorporated ECO 039163 to reflect addition of 12/98 WJ-8611/SM Signal Monitor Option and changes to parts lists and schematics related to ECOs 038903, 038995, 039024, and 039159. Revised software history to reflect ECO 039059. Added Appendix A.
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Page 11 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER TABLE OF CONTENTS WJ-8611 DIGITAL VHF/UHF RECEIVER SECTION 1 GENERAL DESCRIPTION Paragraph Page Electrical Characteristics ....................Mechanical Characteristics ................... Equipment Supplied...................... Equipment Required but not Supplied................Software Release History....................WJ-8611 Options ......................1.6.1 8611/SM Signal Monitor Option ..................
Page 12: Table Of Contents
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER TABLE OF CONTENTS (Continued) SECTION 3 (Continued) LOCAL OPERATION Paragraph Page 3.2.3 Tuning Meter (Tune) ....................3.2.4 Power Switch ........................ 3.2.5 Phone Audio Control Knob (Phones) ................3.2.6 EDIT Control Knob (EDIT) ..................
Page 13 Hardware Device Error Register................... 4-31 SECTION 5 CIRCUIT DESCRIPTIONS Paragraph Page WJ-8611 Digital VHF/UHF Receiver Functional Description........Type 797228-1 RF Assembly (A3) Circuit Description..........5.2.1 Part 482902-1 1st LO/1st Converter Assembly (A3A1)..........5.2.2 Part 482903-1 2nd LO/2nd Converter Assembly (A3A2)..........
Page 14 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER TABLE OF CONTENTS (Continued) SECTION 6 MAINTENANCE Paragraph Page General.......................... Cleaning and Lubrication....................Inspection for Damage and Wear ................. Test Equipment Required ..................... Troubleshooting and Fault Isolation ................WJ-8711 Digital VHF/UHF Receiver Performance Tests..........
Page 15 WJ-8611 DIGITAL VHF/UHF RECEIVER TABLE OF CONTENTS (Continued) SECTION 7 (Continued) Paragraph Page Parts List ........................Type WJ-8611 VHF/UHF Receiver, Main Chassis............7.5.1 Type 797229-2 Front Panel Assembly, (A1)..............7.5.1.1 Type 482554-2 Front Panel Control PC Assembly (A1A1)......... 7-10 7.5.1.2 Type 482929-1 Display PC Assembly (A1A2) ............
Page 16 LIST OF ILLUSTRATIONS Figure Page WJ-8611 Receiver Internal Configuration Switch............WJ-8611 Configuration of Rack Mounting Accessories ..........Installation of Jonathan Type 110QD-20-2 Slide Mounts..........WJ-8611 Digital VHF/UHF Receiver Rear Panel ............2-10 Timing Diagram for I/Q Data Transfers at the DIGITAL IF OUT Connector.....
Page 17 Type 797168 Digital Control PC Assembly (A2) Functional Block Diagram..... FP-11 FO-7 Type 797229-1 Front Panel Assembly (A1) Functional Block Diagram ..... FP-13 FO-8 WJ-8611 Digital VHF/UHF Receiver, Module, Location Drawing 581957....FP-15 FO-9 Part 482554 Front Panel Control PC Assembly (A1A1) Component Location Drawing 482547 ......................FP-17...
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Page 19 Courtesy of http://BlackRadios.terryo.org SECTION 1 GENERAL DESCRIPTION...
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Page 21 SECTION 1 GENERAL DESCRIPTION 1.1 ELECTRICAL CHARACTERISTICS The WJ-8611 Digital VHF/UHF Receiver is a fully synthesized general purpose surveillance receiver that combines a high quality analog RF tuner with the power of a Digital Signal Processing-based (DSP-based) IF and Demodulation section. It tunes over a 2 to 1000 MHz frequency range, with a 10 Hz tuning resolution (specifications apply in the 20 to 1000 MHz range).
Page 22 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 1-1. Table of Specifications Frequency Range..........2 to 1000 MHz (specifications apply to 20 to 1000 MHz) Tuning Resolution ..........10 Hz RF Input Impedance ..........50 ohms, nominal Input VSWR ............2:1, typical; 3:1, maximum Noise Figure ............12 dB, maximum...
Page 23 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 1-1. Table of Specifications (Continued) Environmental: Vibration ........... MIL-STD-810E method 514.4 categories 1, 8, and 9 (Basic transportation, Ground Mobile, and Shipboard) Shock ............MIL-STD-810E method 516.4, procedure VI, Bench Handling Operating Temperature ......MIL-STD-810E methods 501.3 and 502.3 Storage Temperature.........
Page 24 WJ-8611 DIGITAL VHF/UHF RECEIVER 1.2 MECHANICAL CHARACTERISTICS The WJ-8611 Digital VHF/UHF Receiver is a half-rack unit, measuring 8.25 inches (20.96 cm) wide, 5.25 inches (13.34 cm) high, and 18.0 inches (45.72 cm) deep (excluding front and rear panel support bracket clearance).
Page 25 IEEE-488 or RS-232C Compatible Computer for Remote Control 1.5 SOFTWARE RELEASE HISTORY The WJ-8611 software has two components the Control software and the A/D Gain Control software. The initial version of the Control Software software is version 01.00.00, which was released on October 6, 1995. The initial version of the A/D Gain Control Software software is version 01.00.00, which was released on October, 6 1995.
Page 26 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER • EPROM addresses were changed to accommodate use of different EPROM components. • Corrected problems in manufacturing test commands. • Corrected problem in which the EXE bit was being set in the SRQ hierarchy by the *RST command.
Page 27 (PAN) IF representation of it. This IF PAN display is useful as an aid to receiver tuning or to observe signal activity. This capability is made possible through the mechanical and electrical integration of the WJ-9168 Signal Monitor Module (SMM) within the WJ-8611. Refer to Appendix A for further details.
Page 28 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER NOTES GENERAL DESCRIPTION...
Page 29 Courtesy of http://BlackRadios.terryo.org SECTION 2 INSTALLATION...
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Page 31 SECTION 2 INSTALLATION 2.1 UNPACKING AND INSPECTION The WJ-8611 Receiver and its accessories is shipped cushioned between molded-in-place packing material in a double walled shipping carton. After unpacking the equipment, retain the shipping container and its packing material until the equipment has been thoroughly inspected and it is ensured that reshipment is not necessary.
Page 32 Switch position 4 of A2S1 provides an indication to the receiver’s control processor of the status of the front panel. For the standard WJ-8611 receiver, this switch should be in the OFF position, indicating that the front panel, with its controls and indicators, is present. When this switch is in the ON position, it indicates that the standard front panel is not installed.
Page 33: Wj-8611 Receiver Internal Configuration Switch
A2S1 SETTINGS A2S2 SETTINGS NOTES: OFF = 0; ON = 1 SEE FO-11 FOR A2S1 AND A2S2 LOCATIONS. WJ-8611 IS SET FOR DEFAULT ADDRESS OF 6 AT THE FACTORY. DARK SEGMENTS DEPICT SWITCH POSITIONS. Function Switch S1 -1 Configuration Mode :...
Page 34 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER CAUTION Configuration commands should be used only by qualified maintenance personnel. Table 2-1. Configuration Mode Commands and Queries Command Query Description #CDT mm,dd,yy #CDT? Sets or reads the date that the current configuration was performed.
Page 35 1200, 2400, 4800, 9600, 19200, or 38400 baud may be selected. 2.2.2 RACK MOUNTING The WJ-8611 Digital VHF/UHF Receiver, illustrated in Foldout FO-1, is packaged in a 5.25-inch (13.34 cm) x 8.25-inch (20.96 cm) x 18-inch (45.72 cm) half-rack enclosure. Panel support brackets, slide mounting holes, and mounting hardware are provided for rack mounting.
Page 36 2.2.3 POWER REQUIREMENTS The WJ-8611 Receiver will operate with line voltages ranging from 90 to 264 Vac, at line frequencies from 48 to 440 Hz. Its internal switching power supply adjusts to accommodate voltages in this range. No external power source voltage selection is required.
Page 37 FRONT SUPPORT BRACKET 282575-1 CENTER SUPPORT BRACKET 384036-1 SPACER SUPPORT BRACKET 10382-A-0832-2 HANDLE ASSEMBLY 283496-1 OUTSIDE REAR HANDLE 283496-2 283496-2 INSIDE REAR HANDLE 283496-1 283496-1 384036-1 282576-2 282576-2 384036-1 282575-1 10382-A-0832-2 (2 PL) Figure 2-2. WJ-8611, Configuration of Rack Mounting Accessories INSTALLATION...
Page 38: Installation Of Jonathan Type 110Qd-20-2 Slide Mounts
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER ±.03 (.04) (REF) (TYP) .625 94-183 .500 2.63 .625 3.25 2.95 .625 ±.02 ±.02 .500 1.60 2.63 .625 BAR NUT PART NO. SP0541 Figure 2-3. Installation of Jonathan Type 110QD-20-2 Slide Mounts A 1 amp slo-blo fuse (F1) located on the receiver rear panel provides over- current protection.
Page 39 2.2.4 CONNECTOR SIGNALS With the exception of the front panel PHONES jack, all external input and output connectors of the WJ-8611 Receiver are located on the rear panel. Table 2-2 lists all of the external input and output connectors and also provides a brief description of each connector function.
Page 40: Wj-8611 Digital Vhf/Uhf Receiver Rear Panel
1, 2, 5, or 10 MHz, at a minimum level of 125 mV rms from a 50 ohm source. The WJ-8611 Receiver automatically senses the input signal and locks to the external reference if the signal is within the allowable specified limits.
Page 41 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER COR, CARRIER-OPERATED- RELAY OUTPUT (A2J6) The Carrier-Operated-Relay output is a 50-ohm female BNC connector that provides a TTL output that indicates when signal activity exceeds the programmed squelch threshold. A logic “0” level indicates an active signal, above threshold, and a logic “1”...
Page 42 The data words are 16-bit, twos-complement integers. The words are paired as complex data points, first I then Q. The complex I/Q pairs are scaled so that full scale represents a signal 90 dB above the WJ-8611’s noise floor. The total useful range is approximately 90 dB, as measured from the noise floor to full scale.
Page 43: Timing Diagram For I/Q Data Transfers At The Digital If Out Connector
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Note that the above rates are for I/Q pairs, and not the individual data word strobe rate. There are two data words for each I/Q pair. Figure 2-5 illustrates the timing for transfer of individual I and Q data words. The positive phase of the differential signals is shown.
Page 44: Strobe Output Over Several I/Q Pair Transfers
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 2 µ s STB @ DATA RATE = 250 ksps 4 µ s STB @ DATA RATE = 62.5 ksps 98-0328 16 µs Figure 2-6. Strobe Output Over Several I/Q Pair Transfers 2.3 EQUIPMENT MALFUNCTIONS This unit was thoroughly inspected and factory adjusted for optimum performance prior to shipment.
Page 45 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 2.4 PREPARATION FOR RESHIPMENT OR STORAGE If the unit must be prepared for reshipment, the packaging method should follow the pattern established in the original shipment. Use the best packaging materials available to protect the unit during reshipment or storage.
Page 46 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Ship to: DRS Signal Solutions, Inc. 700 Quince Orchard Road Gaithersburg, Maryland 20878-1794 U.S.A When storing the equipment for extended periods, follow the above packing instructions to prevent damage to the equipment. The safe limits for storage environment are: Temperature: -40 to +70°C...
Page 47 Courtesy of http://BlackRadios.terryo.org SECTION 3 LOCAL OPERATION...
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Page 49: Wj-8611 Digital Vhf/Uhf Receiver Front Panel
3.1 LOCAL OPERATION This section provides information related to the local operation of the WJ-8611 Digital VHF/UHF Receiver using its front panel controls and indicators. Paragraph 3.2 describes each of the local controls, and its function in the operation of the receiver. It is recommended that these descriptions be reviewed for familiarization with the control functions.
Page 50: Tuning Meter (Tune)
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 3.2.1 TUNED FREQUENCY DISPLAY The tuned frequency display is a nine-character numeric display, located at the top right-hand corner of the front panel. The label FREQUENCY MHz directly above the display defines its primary function. This display shows the current tuned frequency, in MHz.
Page 51: Power Switch
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 3.2.4 POWER SWITCH The POWER switch is a two-position rocker switch that applies power to the receiver and initiates the receiver power up sequence. Pressing the upper portion of the switch places the switch into the ON position.
Page 52: Dedicated Control Keys
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 3.2.8 DEDICATED CONTROL KEYS The dedicated control keys, mounted directly below the parameter display, provide control over specific receiver parameter selections. They work in conjunction with the front panel EDIT knob and the numeric keypad to provide control over their associated function.
Page 53 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER automatically activated. For Upper Sideband (USB) and Lower Sideband (LSB), the 3.2 kHz IF bandwidth is activated. Table 3-1. Numeric Entry of IF Bandwidth Position IF BW Position IF BW 0.2 kHz 20.0 kHz 0.5 kHz...
Page 54 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER BEAT FREQUENCY OSCILLATOR CONTROL KEY (BFO - +/- ZERO) The BFO +/- ZERO key is selectable only when the CW detection mode is active. It is used to introduce an offset signal into the signal path so that an unmodulated CW type signal will produce an audible output.
Page 55 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER When the SQUELCH key is pressed, the LED on the key illuminates, and one of the digits in the SQUELCH field of the parameter display flashes, indicating that the squelch update mode is under active control by the EDIT knob.
Page 56: Numeric Keypad
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER STEP TUNE/TUNE LOCK CONTROL KEY The STEP TUNE / TUNE LOCK control key is a dual function control, with the numeric keypad’s SHIFT key determining the key function. When the SHIFT key is pressed at the keypad (SHIFT LED illuminated), the TUNE LOCK function is selectable.
Page 57 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER • Squelch Level, when terminated with the SQUELCH key • Manual Attenuation Level, when terminated with the AGC key • IF Bandwidth Selection, when terminated with the IF BW key • Configuration Menu Entries, when terminated with the MENU key •...
Page 58: Configuration Menu/Memory/Scan Setup Control Keys
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER ARROW KEYS (LEFT/RIGHT ARROW) The left (<) and right (>) arrow keys provide a number of operations associated with receiver tuning control. In the normal tuning operation, these keys select the tuning resolution of the tuning wheel. Each press of one of these keys moves the flashing digit in the tuned frequency display to the left or right by one digit.
Page 59: Configuration Menu, Memory, And Scan Setup Control Keys
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER CHAN SKIP LOCKOUT EXEC INCL STORE SETUP PAUSE SCAN EDIT MENU 95-1192 Figure 3-3. Configuration Menu, Memory, and Scan Setup Control Keys CONFIGURATION MENU (MENU) CONTROL KEY The MENU key places the receiver front panel into a menu-driven receiver configuration mode, where the receiver’s operation configuration may be...
Page 60 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER BITE - Initiates the receiver’s Built-In-Test function and returns a message indicating the receiver’s operational status. When the BITE menu is first selected the message “PENDING” is displayed. Rotation of the EDIT knob activates the BITE function. Upon completion of the tests, and if no failure is detected, “PASSED”...
Page 61 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER DUART ERROR RS-232 Interface Write/Read test failure FILTER ERROR Digital filter write/read test failure LO 1 UNLOCK 1st LO synthesizer unlocked LO 2 UNLOCK 2nd LO synthesizer unlocked LO 3 UNLOCK 3rd LO synthesizer unlocked...
Page 62 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER switch 6. If the switch is in the DOWN position, the hardware configured IEEE-488 bus address is displayed but cannot be changed. If the switch is in the UP position, the address may be changed using the EDIT knob.
Page 63 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER DETECTION MODE MATCH - The Detection Mode Match menu selects how the receiver’s IF bandwidth and gain control selections respond to detection mode changes. With the Detection Mode Match set to OFF, the currently selected IF bandwidth and gain control selections remain constant when the detection mode is changed.
Page 64 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER START/STOP PARAMETERS - With the Channel type scan selected, the next two menu entries provide displays to select the range of memory channels that are to be included in the Channel Scan sequence. The first display requests the Start memory channel and the next requests the Stop memory channel.
Page 65: Manual Operation
Phone Audio Level Adjustment 3.3.1 FREQUENCY TUNING The WJ-8611 Digital VHF/UHF Receiver has a 0.00000 to 1000.00000 MHz tuning range, with a selectable tuning resolution down to 10 Hz. Tuning in the 2 to 20 MHz range provides HF tuning capabilities adequate for many applications.
Page 66: Detection Mode Selection
3.3.2 DETECTION MODE SELECTION The WJ-8611 Digital VHF/UHF Receiver provides a selection of six detection modes, consisting of AM, FM, CW, USB, LSB, and ISB. Selection of the desired detection mode is performed by pressing the DET key.
Page 67 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The AM selection provides demodulation of amplitude modulated signals. In this detection mode, all of the available IF bandwidths are available for selection, based on the bandwidth characteristics of the received signal. The Automatic Frequency Control (AFC) feature is also available for selection, as long as a bandwidth of 3.2 kHz or greater is active.
Page 68: Detection Mode Match
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The ISB selection provides simultaneous demodulation of the upper and lower sidebands of single sideband type signals. In this detection mode, the IF bandwidth is automatically set to 6.4 kHz, and cannot be changed.
Page 69: Gain Control Mode Selection
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER SELECTION LIST The IF Bandwidth selection list is created in the IF Bandwidth Select menu of the Configuration menu. Once in this menu, the desired selection list can be created to tailor the bandwidth selections for a specific installation or application.
Page 70: Squelch Operation
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER terminating the entry by pressing AGC enters the value directly. The gain control mode characteristics are as follows: FAST - The Fast AGC mode is commonly used with AM and FM type signals. It provides a fast attack and fast decay response. The typical attack time is 10 msec, and the release time is 200 msec.
Page 71: Noise Blanking Operation
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 10 dBm DIGIT - This selection displays the last selected squelch level with the 10 dBm digit flashing. When this selection mode is active, rotation of the EDIT knob changes the level in 10 dB increments. A value may also be entered at the key pad, terminated with the SQUELCH key.
Page 72: Beat Frequency Oscillator Operation
(+0000). 3.4 MEMORY PROGRAMMING The WJ-8611 Receiver contains a 200-channel programmable memory for storage and retrieval of receiver parameters, and a 200-channel lockout memory for storage of lockout frequencies associated with F1-F2 frequency scans.
Page 73: Channel Memory
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 3.4.1 CHANNEL MEMORY The Channel memory provides 200 channels of programmable memory for storage of complete receiver parameter setups. It is used for channel scan operations, or the stored data can be retrieved from any individual memory channel to quickly set the receiver to commonly used frequencies.
Page 74 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER STORE key a second time stores the new data into the memory channel and increments the memory display to the next channel number in sequence. While this display is present, the EDIT knob may be used to step through the channels to view the stored data in other channels or to select a different channel for storage.
Page 75: Lockout Memory
The Scan mode is an automatic mode of operation, where the receiver is pre-programmed to search through a specified frequency band or to step through a series of discrete frequencies in search of signal activity. There are three types of scan operations that can be performed by the WJ-8611 LOCAL OPERATION 3-27...
Page 76 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Receiver. The scan type is chosen in a Scan setup menu prior to activating the scan operation. The scan types are: Channel Scan, F1-F2 Scan, and F1-F2 Scan with Lockouts. Before entering into one of these scan modes, the receiver’s memory and scan menu must be programmed with the...
Page 77: Scan Setup
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 3.5.1 SCAN SETUP The SETUP menu provides a menu for programming the details associated with the desired scan operation. This menu selects the type scan that is to be performed, its start and stop parameters, and the dwell timer settings.
Page 78 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The PRE DWELL parameter determines the time that the receiver stops at each increment of a scan sequence, waiting for a signal to break the programmed squelch threshold. The pre dwell time can range from 0 to 1000, in 5 msec increments.
Page 79 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER F1-F2 AND F1-F2 W/LK SCAN SETUP PROCEDURE For F1-F2 and F1-F2 W/LK (With Lockouts) operations, the Setup menu selects the actual start and stop frequencies that define the frequency spectrum that is to be scanned. These menus also select the dwell timer settings that are to be used in the scan.
Page 80: Scan Initialization
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER bandwidth are used. From the numeric keypad, enter the step size (in kHz). Terminate the entry by pressing the SETUP key. When the setup key is pressed, the entry is momentarily displayed in the menu, and the display increments to the PRE DWELL selection.
Page 81: Receiver Cold Start
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER frequency, stop frequency, increment size, and the dwell timer setting are preset by the Setup menu. All of the other operating parameters must be selected in the manual mode before the scan is started.
Page 82 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER EEPROM FAILURE EEPROM write/read test failure EPROM FAILURE EPROM checksum test failure DSP A COMM ERROR DSP A to Control Processor communication test failure A->B COMM ERROR DSP A to DSP B communication...
Page 83 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Press the MENU key, as required, until the 2.BITE PENDING menu is displayed. Rotate the EDIT knob to activate BITE. At the completion of the BITE tests, the word “PASSED” is displayed to indicate no failures.
Page 84 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER NOTES 3-36 LOCAL OPERATION...
Page 85: Remote Control
Courtesy of http://BlackRadios.terryo.org SECTION 4 REMOTE CONTROL...
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Page 87: Serial Interface
SECTION 4 REMOTE CONTROL 4.1 REMOTE CONTROL The WJ-8611 Digital VHF/UHF Receiver is capable of being controlled remotely by an external computer equipped with an RS-232 serial or IEEE-488 parallel interface. The 1data is transmitted and received over the interface using ASCII-standard encoded characters. The receiver’s parallel IEEE-488 interface uses the standard 24-pin IEEE-488 connector.
Page 88 Refer to paragraph 3.2.9. 4.2 COMMAND MESSAGE FORMAT Command messages for the WJ-8611 Receiver are exclusively ASCII- encoded data, consisting of command headers and arguments. command headers consist of three character mnemonics. The arguments associated with the command follow the command in a “forgiving”...
Page 89: Query Response Formats
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The command messages are divided into three categories, based on the function of the message: They are: device message, communication messages, and configuration messages. These message categories are detailed in Tables 4-1, Table 4-2, and Table 4-3, respectively.
Page 90: Receiver Device Messages
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER • nrf - The nrf (forgiving numeric representation) data element for commands is composed of the sequential fields listed below. All fields (1-5) are optional with one restriction: at least one digit must be present with the active data element of the argument.
Page 91 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description BND nrf Selects the RF preselector frequency band manually. This command overrides the current preselector band selection that was set by the tuned frequency. It is used for test purposes only.
Page 92 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description BWS nrf Selects an IF bandwidth by specifying its IF bandwidth slot number. (See paragraph 1.5 on Software Version 01.00.07.) Range: 1 - 17 Where: 1 = 0.00020...
Page 93 Request the current COR status. Range: CST 0 - COR off CST 1 - COR on CTL nrf Selects the control mode of the WJ-8611 Receiver. Range: 0 - 2 Where: CTL 0 = Local receiver control CTL 1 = Remote receiver control...
Page 94 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description DET nrf Selects the receiver detection mode. Range: 1 - 6 Where: 1 = AM 4 = USB 2 = FM 5 = LSB...
Page 95 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description FRQ nrf Sets the receiver tuned frequency in MHz. The resolution for this tuning command is 10 Hz. Range: 0 to 1000.00000 FRQ? FRQ nr2 Requests the current tuned frequency of the receiver.
Page 96 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description OPR nrf Selects the receiver operation mode. Range: 1 - 3 Where: 1 = Manual 2 = F1-F2 Sector scan 3 = Channel scan...
Page 97 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description RCE nrf Recall and execute the specified memory channel. Range: 1 -200 REF? REF nr1 Requests the current source of the receiver’s reference frequency.
Page 98 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages (Continued) Command Response Description SGS? SGS nr1 Requests the current receiver signal strength. Range: +10 to -130 Where: +10 to -130 Signal Strength in dBm <<<< Insufficient signal >>>>...
Page 99: Communication Messages
4.4 COMMUNICATION MESSAGES The commands in this message category are always valid. They are used to establish communications between the WJ-8611 Receiver and the remote controlling device. The mnemonics associated with this message category are listed in Table 4-2. Common communication messages are prefixed with an asterisk.
Page 100 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-1. Receiver Device Messages Command Response Description Advances to the next increment of the scan. It is used when the receiver is in dwell. AFC nrf Selects or disables the Automatic Frequency Control.
Page 101 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages Command Response Description *CLS This command causes all of the Communication Status registers to be cleared. DEE nrf Sets the receiver’s Device Dependent Error Enable register bits to determine which conditions will initiate a Service Request (SRQ) to the controlling device.
Page 102 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description DPE nrf Sets the DSP Error Enable register bits to determine which error conditions will cause the DSP Error bit (bit 3) to be set in the Device Dependent Error register.
Page 103 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description DVE nrf Sets the Hardware Device Error Enable register bits to determine which hardware error conditions will cause the DVR Error bit (bit 4) to be set in the Device Dependent Error register. The data byte associated with this command is a bit-mapped byte, with the individual bits flagging which functions are enabled.
Page 104 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description *ESE nrf Sets the Event Summary Enable register bits to determine which Error conditions will be passed to the status byte to initiate a Service Request (SRQ) to the controlling device. The data byte associated with this command is a bit-mapped byte, with the individual bits flagging which functions are enabled.
Page 105 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description LOE nrf Sets the LO Error Enable register bits to determine which local oscillator error conditions will cause the LOR Error bit (bit 2) to be set in the Device Dependent Error register.
Page 106 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description RSE nrf Sets the Receiver Status Enable register to enable interrupts to be passed from the Receiver Status register to the Status Byte register via the RSB bit (bit 0) of the Status Byte. The data byte associated with this command is a bit-mapped byte, with the individual bits flagging which functions are enabled.
Page 107 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description *SRE nrf Sets Service Request Enable register to determine the conditions that will generate a service request (SRQ) to the external controlling device. The data byte associated with this command is a bit-mapped byte, with the individual bits flagging which functions are enabled.
Page 108: Configuration Messages
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-2. Communication Messages (Continued) Command Response Description *TST? Runs the receiver’s Built-in Test function and responds with a decimal number. The value of the number is the sum of the bit values of the failed tests, as follows:...
Page 109 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER CAUTION The receiver configuration messages provide access to factory programmed receiver data associated with the proper operation of the receiver. Extreme care should be exercised when entering into this mode. Table 4-3. Configuration Messages...
Page 110: Receiver Status Summary
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-3. Configuration Messages (Continued) Command Response Description #PRB Loads the preselector configuration data for preselector band B. nrf,nrf,...,nrf The data list associated with this command consists of 17 bytes that are used to develop the tuning voltage for band B.
Page 111: Status Bytes
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER receiver are passed through to the receiver’s Status Byte Register to generate a service request (SRQ) over the remote interface. The structure of the register pairs allows a programmer to mask specific bits, controlling which events are permitted to cause a service request to be sent.
Page 112: Event Summary Status Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-4. Status Byte Register, Bit Evaluation Mnemonic Description Receiver Status Bit - This bit, when set, indicates that an event has caused one or more bits in the Receiver Status Register to be set. This bit is...
Page 113: Receiver Status Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-5. Event Summary Register, Bit Evaluation Mnemonic Description Operation Complete - This bit is set on the completion of an operation that has been designated by the *OPC command. Not Used Query Error - Set on an attempt to read data from the output buffer with no data pending, or on output buffer overflow.
Page 114: Device Dependent Error Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-6. Receiver Status Register, Bit Evaluation Mnemonic Description Signal Above Threshold - This bit indicates when a received signal exceeds the squelch threshold. This is an edge triggered event that is set when a signal goes from below the threshold to above the threshold.
Page 115: Local Oscillator Error Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-7. Device Dependent Error Register, Bit Evaluation (Continued) Mnemonic Description Local Oscillator Unlock - This bit is set when one of the frequency synthesizers in the RF Assembly has failed (unlocked). DSP Error - This bit is set when an error condition exist in the Digital Signal Processor circuitry.
Page 116: Dsp Error Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 4.6.6 DSP ERROR REGISTER The DSP Error Register determines which of the Digital Signal Processor error conditions have caused the DSP bit of the Device Dependent Error Register to be set. The DPE command sets the enable bits to select which conditions are enabled.
Page 117: Hardware Device Error Register
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 4.6.7 HARDWARE DEVICE ERROR REGISTER The Hardware Device Error Register determines which of the hardware error conditions have caused the DVC bit of the Device Dependent Error Register to be set. The DVE command sets the enable bits to select which conditions are enabled.
Page 118 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 4-10. Hardware Device Error Register, Bit Evaluation (Continued) Mnemonic Description IF Filter Error - Occurs on power up or at the completion of BITE when the Digital Filters, used for IF Filtering, fail a write/read test.
Page 119 Courtesy of http://BlackRadios.terryo.org SECTION 5 CIRCUIT DESCRIPTIONS...
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Page 121: Circuit Descriptions
CIRCUIT DESCRIPTIONS 5.1 WJ-8611 DIGITAL VHF/UHF RECEIVER FUNCTIONAL DESCRIPTION The WJ-8611 Digital VHF/UHF Receiver is a Digital Signal Processor (DSP) based receiver that provides frequency coverage in the 20 to 1000 MHz frequency range. The receiver circuitry consists of the Type...
Page 122 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER frequency control data to the reference synthesizer to lock the reference oscillator to the external signal. The Digital Control PC Assembly (A2) contains a control processor, a high speed A/D converter, and Digital Signal Processing (DSP) circuitry for processing of the signal data.
Page 123: Type 797228-1 Rf Assembly (A3) Circuit Description
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The power for all of the assemblies in the WJ-8611 Receiver is provided by the Type 766032-1 Switching Power Supply (PS1). It accepts an input voltage ranging from 90 to 264 Vac, with line frequencies ranging from 47 to 63 Hz.
Page 124 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The reference generator contained in the 2nd LO/2nd Converter PC Assembly (A3A2) uses a 10 MHz temperature compensated voltage controlled crystal oscillator TCVCXO as its reference. If it is desired, the reference can be locked to an external frequency standard, an external reference of 1, 2, 5, or 10 MHz may be attached at the EXTERNAL REF connector (J2).
Page 125: Preselector Band Selection
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 5-1. Preselector Band Selection Tuned Preselector Frequency Band 500 -1000 MHz 250 - 500 MHz 125 - 250 MHz 60 - 125 MHz 20 - 60 MHz *Bypass * The Bypass may only be selected when the receiver is tuned below 100 MHz.
Page 126 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER A selectable 16 dB attenuator at the output of 1st Converter section provides a means of reducing the assembly gain under strong signal conditions. This circuit works in conjunction with up to 31 dB of...
Page 127: 1St Lo Synthesizer Tuning Bands
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Table 5-2. 1st LO Synthesizer Tuning Bands Switching Test Band Tuned Frequency Range 1st LO Frequency Range Point 20.0000 - 192.5000 MHz 1370.0 - 1542.5 MHz TP 13 195.0000 - 400.0000 MHz 1545.0 - 1750.0 MHz TP 12 402.5000 - 610.0000 MHz...
Page 128 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Digital Signal Processing. The Digital Control PC Assembly (A2) monitors the level of this signal, and is gain controlled to prevent the signal level from exceeding 0.2 V peak-to-peak. In addition to these IF outputs,...
Page 129 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER band-limited to 200 kHz and its amplitude is limited to a maximum level of 0.2 V peak-to-peak when loaded into 50 ohms. There are four synthesizer circuits contained in the 2nd LO/ 2nd Converter PC Assembly (A3A2).
Page 130 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER changing the tuning voltage that is applied to the VCO’s tuned circuit. The tuning voltage present at TP35 is typically between +7 and +15 V for a normally operating 100 MHz synthesizer. Capacitor C67 adjusts the VCO for its proper operating characteristics.
Page 131: 2Nd Lo Synthesizer Tuning Frequencies
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The Step Loop Synthesizer provides coarse tuning of the 2nd LO VCO to set the output to within 500 kHz of the desired frequency. It provides a 1325.5 to 1327.5 MHz signal, with a 500 kHz tuning resolution. This signal is mixed with a sample of the 2nd LO output frequency in the synthesizer's feedback path.
Page 132: Serial Control Bus Data Distribution
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER STEP, LOCK2 RES, and LOCK2 TRANS lock indications are summed with the LOCK3 indication from the 3rd LO synthesizer to provide the 2nd LOCK status indication to the Digital Control PC Assembly (A2) (A2P3, pin 31).
Page 133: Type 797168-1 Digital Assembly (A2) Circuit Description
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The six gain control lines (RF 16, and IF 1/2/4/8/16) set the RF and IF attenuation level to prevent the 250 kHz IF output (A2P1) from overdriving the analog-to-digital converter in the Digital Control PC Assembly (A2).
Page 134 Two DIP switches (S1 and S2), contained in the Control Processor section, permit the WJ-8611 Receiver to be configured for its intended operating environment. On receiver power up, the control processor reads these switches to determine the operating configuration of the receiver. Switch S2 selects the default configuration of the receiver’s remote interface.
Page 135: Configuration Switch Summary
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER This is an analog voltage line that ranges from 0 to +3 Vdc at TP69. It is scaled prior to being output to provide a voltage ranging from 0 to +5 Vdc at pin 10 of J1. The serial data and timing lines are shared by all of the control registers for the synthesizers and the preselector, in the RF Tuner Assembly (A3).
Page 136 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER The Control Processor monitors the status of the RF Tuner Assembly (A3) via five status lines. Three lock detection lines (1ST LOCK, 2ND LOCK, and 3RD LOCK, J1, pins 30, 31, and 32) provide the control processor with a continuous status of the 1st, 2nd, and 3rd synthesizers.
Page 137 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER anti-alias filter in the RF Tuner Assembly (A3), and the signal amplitude is limited to a maximum of from 6 to 10 dB below the full-scale range of the A/D converter used for digitization. Upon entering the assembly, the signal is routed through a 20 dB amplifier prior to digitization.
Page 138: I And Q Data Transfer Rates
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER the 10 MHz clock (CLK A and CLK B); the I/Q data (DATA A and DATA B); the data strobe (STB A and STB B); and an I/Q qualifier (I/Q A and I/Q B). Their differential configuration is designed to interface with MC3450 or MC3452 line receivers.
Page 139: Type 797229-1 Front Panel Assembly (A1) Circuit Description
(A1A2), and the Part 383947-1 Interconnect PC Assembly (A1A3) as shown in Foldout FO-14. This assembly provides the man/machine interface to the WJ-8611 Digital VHF/UHF Receiver. Refer to the Front Panel Assembly (A1) Functional Block Diagram in Foldout FO-7 as a reference for the following assembly description.
Page 140: Type 766032-1 Switching Power Supply (Ps1)
5.5 TYPE 766032-1 SWITCHING POWER SUPPLY (PS1) The Switching Power Supply (PS1), illustrated in the WJ-8611 Main Chassis schematic diagram, Foldout FO-21, Provides the DC operating voltages for the WJ-8611 Receiver. It receives its line voltage input from 5-20 CIRCUIT DESCRIPTIONS...
Page 141 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER the Input Power connector (FL1J1) and power filter (FL1). In the electrical path to the power supply, the input voltage is fused at the rear panel by a 1.0 Amp Slo-Blo fuse (F1), and routed to the front panel POWER switch (A1S1).
Page 142 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER NOTES 5-22 CIRCUIT DESCRIPTIONS...
Page 143 Courtesy of http://BlackRadios.terryo.org SECTION 6 MAINTENANCE...
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Page 145: General
SECTION 6 MAINTENANCE 6.1 GENERAL The WJ-8611 Digital VHF/UHF Receiver has been designed to operate for extended periods of time with a minimum of routine maintenance. Cleaning, inspection and performance testing should be performed at regular intervals, consistent with the facility’s normal scheduling and after repairs have been made.
Page 146: Wj-8711 Digital Vhf/Uhf Receiver Performance Tests
6.6 WJ-8611 DIGITAL VHF/UHF RECEIVER PERFORMANCE TESTS The receiver performance tests that follow are designed to verify proper operation of the WJ-8611 Receiver, and each of its operational modules. In performance of the tests, the receiver may be controlled by the front panel controls or by an external controlling computer, connected to one of the rear panel remote interface connectors.
Page 147: Front Panel Control And Indicator Performance
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Set the receiver as follows: Tuned Frequency: 250.00000 MHz Detection: IF BW: 10.0 kHz Gain Control: AGC Fast Squelch: Set the Signal Generator to produce a 250.000 MHz output at a level of -90 dBm.
Page 148: Reference Frequency Performance Test, Equipment Connection
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 10 MHz CESIUM BEAM STANDARD FREQUENCY SIGNAL COUNTER GENERATOR WJ-8611 VHF/UHF RECEIVER SEE TEXT OUTPUT PHONES 95-1203 600 OHM HEADSET Figure 6-1. Reference Frequency Performance Test, Equipment Connection Set the receiver as follows: Tuned Frequency: 0.00000 MHz...
Page 149: Sdu Output Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER REF input. Verify the Reference menu reflects the value of the reference frequency being used, as follows: Ref. Freq. Reference Display 5.0000 MHz EXT 5.0 MHz 2.0000 MHz EXT 2.0 MHz 1.0000 MHz EXT 1.0 MHz...
Page 150: Signal Strength Accuracy
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Observe the signal level at the SDU Output, as indicated on the RF millivoltmeter. The level should be at least -48 dBm, indicating at least 12 dB of gain from the RF Input to the SDU Output.
Page 151: Squelch Operation Performance Test, Equipment Connection
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER DIGITAL SIGNAL VOLTMETER GENERATOR WJ-8611 VHF/UHF RECEIVER INPUT PHONES 95-1204 600 OHM HEADSET Figure 6-3. Squelch Operation Performance Test, Equipment Connection Set the receiver as follows: Tuned Frequency: 250.00000 MHz IF BW: 10.0 kHz...
Page 152: Sensitivity Performance Test, Equipment Connection
0 V. Set the signal generator output to a level of -80 dBm. With the signal below the squelch level, the voltmeter should read approximately +5 Vdc. 6.6.7 WJ-8611 SENSITIVITY PERFORMANCE TEST Connect the test equipment as illustrated in Figure 6-4. SEE TEXT...
Page 153 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Set the signal generator as follows: Frequency 250.0000 MHz Output Level See Table 6-2 Modulation AM, 400 Hz, 50% Set the receiver IF bandwidth and corresponding signal generator output level and AM modulation to each of the settings listed in Table 6-2.
Page 154: Audio Output Distortion Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Repeat steps 10 through 12 using each of the IF bandwidths and associated signal generator output levels listed in Table 6-2. Table 6-2. Sensitivity Performance Test Parameters IF Bandwidth Sensitivity Level AM/FM Modulation FM Peak Deviation 5.0 kHz...
Page 155: Video Output And Gain Control Range Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Set the signal generator as follows: Frequency 250.0000 MHz Output Level -60 dBm Modulation AM, 50%, 400 Hz Set the distortion analyzer as follows: Mode Manual Frequency Range Function Voltmeter Meter Range 1 Volt Verify that the detected audio level is 0 dBm, ±3 dB.
Page 156: Wj-8611 Module Performance Tests
Verify that the video amplitude varies by no more than ±3 dB throughout the 90 dB increase in the RF input signal level. 6.7 WJ-8611 MODULE PERFORMANCE TESTS The module test procedures in this section assist in isolating a fault to a malfunctioning module or subassembly.
Page 157: Type 766032 Switching Power Supply Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 6.7.1 TYPE 766032 SWITCHING POWER SUPPLY (PS1) PERFORMANCE TEST Apply power to the receiver and observe the power-up test sequence. From the under side of the receiver, locate connector E1 on the Type 797168 Digital Assembly (A2).
Page 158 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Tuned Frequency 20.00000 MHz Detection Mode IF BW 200 kHz Gain Control AGC Fast Squelch Set the signal generator to produce a 20.000 MHz CW signal, with an output level of -60 dBm.
Page 159: Type 797168 Digital Assembly (A2) Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Refer to Foldouts FO-8 and FO-12. While the receiver is scanning, monitor the 1st LO STB line at pin 11 of connector E1 on the 1st LO/1st Converter PC Assembly (A3A1) with channel 1 of the oscilloscope.
Page 160: Type 797229 Front Panel Assembly (A1) Performance Test
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Connect the signal generator to the rear panel RF Input connector. Set the receiver as follows: Tuned Frequency 20.00000 MHz Detection Mode Gain Control AGC Slow Squelch Connect the oscilloscope at the Line A audio output.
Page 161: Module Removal And Replacement Procedures
6.8 MODULE REMOVAL AND REPLACEMENT PROCEDURES The procedures that follow provide details associated with the removal and replacement of the assemblies contained in the WJ-8611 Digital VHF/UHF Receiver. Refer to the component location drawings provided in Section 7 of this manual as a reference for the location of these assemblies.
Page 162 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 6.8.1 RF TUNER ASSEMBLY (A3) REMOVAL AND REPLACEMENT Disconnect power from the receiver. With a Phillips-screwdriver, remove the 22 screws that secure the top and bottom cover of the receiver. Locate cable W2, which connects the rear panel RF IN connector to the RF Assembly.
Page 163 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 00-0084 Figure 6-7. Type 797228-1 RF Tuner Assembly (A3) Screw Location MAINTENANCE 6-19...
Page 164 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 6.8.2 DIGITAL CONTROL PC ASSEMBLY (A2) REMOVAL AND REPLACEMENT Disconnect power from the receiver. Remove the receiver bottom cover to gain access to the internal assemblies. At the receiver rear panel, remove the hex-nuts and washers from the VIDEO, 250 kHz IF, and COR connectors.
Page 165: Rf Assembly (A3) Removal And Replacement
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 6.8.3 FRONT PANEL ASSEMBLY (A1) REMOVAL AND REPLACEMENT Disconnect power from the receiver. Remove the receiver top and bottom covers to gain access to the internal assemblies and cabling. From the top of the receiver, unplug the AC twisted pair cable (S1J1) from its P1 connector.
Page 166: Type 766032 Switching Power Supply (Ps1) Removal And Replacement
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 6.8.5 PART 482929 DISPLAY PC ASSEMBLY (A1A2) REMOVAL AND REPLACEMENT Remove the Type 797229 Front Panel Assembly (A1) and the Part 482554 Front Panel Control PC Assembly (A1A1) as described in paragraphs 6.8.3 and 6.8.4.
Page 167 Courtesy of http://BlackRadios.terryo.org SECTION 7 REPLACEMENT PARTS LIST...
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Page 169: Replacement Parts List
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER SECTION 7 REPLACEMENT PARTS LIST 7.1 UNIT NUMBERING METHOD The method of numbering used throughout the unit is assigning reference designations (electrical symbol numbers) to identify: assemblies, subassemblies, modules within a subassembly, and discrete components.
Page 170 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER this requirement. Accordingly, a part number having a base of “34456” may appear as “034456”. If you have questions or concerns regarding the configuration identification of piece parts, contact the plant for additional information at 1-800-954-3577.
Page 171 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Mfr. Mfr. Code Name and Address Code Name and Address 1FN41 Atmel Corp. 16179 M/A-COM, Inc. 2125 Onel Dr. M/A-COM Control Components Div. San Jose, CA 95131 21 Continental Blvd. Merrimack, NH 03054-4304 1HJ31 M/A-COM Inc.
Page 172 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Mfr. Mfr. Code Name and Address Code Name and Address 24355 Analog Devices, Inc. 2W944 Papst Mechatronic Corp. Rt. 1 Industrial Pk. Aquidneck Industrial Park PO Box 9106 Newport, RI 02840 Norwood, MA 02062 24539 Avantek, Inc.
Page 173 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Mfr. Mfr. Code Name and Address Code Name and Address 4J627 Engineered Assemblies & 54583 TDK Electronics Corp. Components Corp. 12 Harbor Park Dr. 380 North St. Port Washington, NY 11550 Teterboro, NJ 07608 4T165 NEC Electronics USA, Inc.
Page 174 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Mfr. Mfr. Code Name and Address Code Name and Address 61441 Saronix 75915 Littelfuse Tracor, Inc. 4010 Transport St. Sub. of Tracor, Inc. Palo Alto, CA 94303-4913 800 E. Northwest Hwy. Des Plaines, IL 60016-3049 61772 Integrated Device Technology, Inc.
Page 175 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER Mfr. Mfr. Code Name and Address Code Name and Address KQ536 Harwin, Inc TBD02 Sumida Electric 4173 Main St. 5999 New Wilke Rd. Bridgeport, CT 06606 Suite 110 Rolling Meadows, IL 60008 TOKO Toko, Inc.
Page 176 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5 TYPE WJ-8611 VHF/UHF RECEIVER MAIN CHASSIS Revision J1 Front Panel Assembly 797229-2 14632 Digital Control PC Assembly 797168-1 14632 RF Tuner Assembly 797228-1...
Page 177 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.1 TYPE 797229-2 FRONT PANEL ASSEMBLY REF DESIG PREFIX A1 Revision F1 Front Panel Control PC Assembly 482554-2 14632 Display PC Assembly 482929-1...
Page 178 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.1.1 TYPE 482554-2 FRONT PANEL CONTROL PC ASSEMBLY REF DESIG PREFIX A1A1 Revision C1 Cable, Assembly 24 Position IDMD-12-T-13-C 55322 Capacitor, Ceramic, .047µF, ±10%, 50V...
Page 179 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A1 Thru Same as C44 Not Used Same as C15 Thru Same as C1 Same as C7 Thru Same as C1...
Page 180 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A1 Same as DS1 Connector, Header, 3 position 26-48-2035 27264 Connector, Plug, 3 Pin Post Header 640456-3 00779 Connector, Plug, 5 position Rt Angle...
Page 181 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A1 Same as R1 Same as R1 Same as R21 Same as R8 Thru Same as R21 Thru Same as R1...
Page 182 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A1 Same as R67 Same as R68 Same as R67 Same as R68 Resistor, Fixed, 100kΩ, ±5%, .1W 841414-121 14632...
Page 183 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A1 R161 Thru Same as R11 R166 R167 Not Used R168 Same as R11 R169 Not Used R170 Resistor, Fixed, 22Ω, ±5%, .1W...
Page 184 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.1.2 TYPE 482929-1 DISPLAY PC ASSEMBLY REF DESIG PREFIX A1A2 Revision B2 Capacitor, Ceramic, Disc, 0.1 µF, ±20%, 50V 34475-1 Thru Same as C1 Capacitor, Electrolytic, Aluminum, 1000µF, 6.3V...
Page 185 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A1A2 Thru Same as S2 Same as S1 Thru Same as S2 Same as S1 Same as S1 Same as S2...
Page 186 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.1.3 TYPE 383947-1 INTERCONNECT PC ASSEMBLY REF DESIG PREFIX A1A3 Revision A Connector, Header M80-8871805 KQ536 Encoder Modification 283494-2 14632 Encoder Modification 283494-1...
Page 187 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.2 TYPE 797168-1 DIGITAL CONTROL PC ASSEMBLY REF DESIG PREFIX A2 Revision Z1 Connector, Header, 8-position Rt Angle 26-48-2086 27264 Battery, 3V Rechargeable, Lithium...
Page 188 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Same as C13 Same as C1 Same as C1 Same as C13 Same as C1 Same as C1 Same as C13...
Page 189 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 C134 Same as C45 C135 Same as C1 C136 Same as C1 C137 Same as C131 C138 Same as C41...
Page 190 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 C181 Same as C124 C182 Same as C153 C183 Same as C124 C184 Same as C124 C185 Same as C153 C186 Capacitor, Ceramic, 36pF, ±2%, 50V...
Page 191 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 C250 Thru Same as C1 C253 C254 Same as C41 C255 Same as C41 C256 Same as C1 C257...
Page 192 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 C324 Same as C41 C325 Same as C1 C326 Same as C1 C327 Same as C41 C328 Same as C41...
Page 193 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Thru Same as CR1 LED, Red LSS260-DOE7502 25088 Fuse, 5A 451.005 75915 Fuse, 2A 451.002 75915 Connector, 50-Pin Terminal Strip...
Page 194 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Same as L12 Transistor, PNP MMBT-3906 04713 Transistor, FET MTD5P06E 04713 Transistor, NPN MMBT3904LT1 04713 Transistor, TMOS MTD10N05E 04713...
Page 195 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Jumper .05Ω, Max 841417 14632 Thru Not Used Same as R1 Same as R34 Same as R1 Same as R34...
Page 196 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Same as R93 Same as R93 R100 Thru Same as R4 R102 Resistor, Fixed, 47Ω, ±5%, .1W R103 841414-041...
Page 197 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 R142 Thru Same as R3 R145 R146 Not Used R147 Not Used R148 Resistor, Fixed, 47kΩ, ±5%, .1W 841414-113...
Page 198 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 R206 Same as R22 R207 Same as R1 R208 Resistor, Fixed, 5.1kΩ, ±5%, .1W 841414-090 14632 R209 Resistor, Fixed, 510Ω, ±5%, .1W...
Page 199 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 R268 Same as R34 R269 Same as R254 R270 Same as R103 R271 Same as R34 R272 Not Used...
Page 200 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 R349 Resistor, Fixed, 91Ω, ±5%, .1W 841414-048 14632 R350 Not Used R351 Not Used R352 Thru Same as R3...
Page 201 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 R471 Thru Not Used R473 R474 Thru Same as R10 R477 R478 Same as R3 R479 Same as R3...
Page 202 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Amplifier, Wide BW Op Amp AD9617JR 24355 Integrated Circuit, A/D Converter, 12 BIT ADC12062CIV 27014 Not Used Integrated Circuit, FIR Filter...
Page 203 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A2 Same as U71 Same as U71 Integrated Circuit, Microcontroller, Programed 842133-001 14632 XU74 Socket, Leadless Chip Carrier 213-044-601 26742...
Page 204: Type 797228-1 Rf Tuner Assembly, Component Location
Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.3 TYPE 797228-1 RF TUNER ASSEMBLY REF DESIG PREFIX A3 Revision E1 1st LO, 1st Converter PC Assembly 482902-1 14632 2nd LO, 2nd Converter PC Assembly...
Page 205 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.3.1 TYPE 482902-1 1ST LO, 1ST CONVERTER PC ASSEMBLY REF DESIG PREFIX A3A1 Revision W1 Socket Strip 16 ESQ-116-44-G-S 55322 Socket, Receptacle PC Mount, 1 position.
Page 206 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Same as C1 Capacitor, Tantalum, 3.3µF, ±20%, 16V 841293-36 14632 Same as C1 Same as C68 Thru Same as C1...
Page 207 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 C128 Thru Same as C89 C131 C132 Capacitor, Ceramic, 2200pF, ±10%, 50V 841415-015 14632 C133 Capacitor, Ceramic, 68pF, ±5%, 50V...
Page 208 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 C172 Thru Same as C1 C176 C177 Thru Same as C65 C179 C180 Same as C1 C181 Same as C1...
Page 209 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 C227 Same as C1 C228 Thru Same as C37 C230 C231 Thru Same as C1 C233 C234 Same as C37...
Page 210 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 C273 Same as C1 C274 Capacitor, Ceramic, 15pF, ±2%, 50V 841416-029 14632 C275 Same as C89 C276 Same as C1 C277 Capacitor, Ceramic, 2.2pF, ±.1pF, 150V...
Page 211 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 CR46 Thru Same as CR1 CR49 CR50 Diode, Switching PIN, MMBD7000LT1 04713 CR51 Thru Same as CR50 CR55 CR56...
Page 212 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Thru Same as L1 Inductor, 18nH, ±5% 841438-007 14632 Thru Same as L23 Same as L1 Inductor, 82nH, ±5%...
Page 213 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Same as L66 Same as L1 Same as L66 Same as L50 Same as L62 Same as L66 Inductor, Thin Film Chip, 8.2nH...
Page 214 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Same as Q4 Same as Q6 Same as Q4 Same as Q17 Same as Q6 Same as Q4 Same as Q6...
Page 215 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Same as R2 Same as R1 Same as R1 Same as R4 Thru Same as R2 Thru Same as R1 Resistor, Fixed, 10kΩ, ±5%, .1W...
Page 216 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Same as R49 Same as R46 Same as R49 Same as R42 Same as R46 Thru Same as R42...
Page 217 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 R123 Resistor, Fixed, 8.2kΩ, ±5%, .1W 841414-095 14632 R124 Same as R70 R125 Same as R70 R126 Same as R4...
Page 218 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 R182 Same as R120 R183 Same as R13 R184 Resistor, Fixed, 68Ω, ±5%, .1W 841414-045 14632 R185 Resistor, Fixed, 33Ω, ±5%, .1W...
Page 219 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 R224 Same as R184 R225 Same as R185 R226 Same as R46 R227 Same as R180 R228 Same as R1...
Page 220 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 R276 Same as R270 R277 Same as R55 R278 Same as R55 R279 Same as R185 Resistor, Fixed, 150Ω, ±5%, .1W...
Page 221 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A1 Integrated Circuit, F-Logic Quad 2-Input NOR Gate 74F02 SO14 27014 Same as U8 Powersplitter, 500-2000 MHz SPL, 2EF-01 12855...
Page 222 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.3.2 TYPE 482903-1 2ND LO, 2ND CONVERTER PC ASSEMBLY REF DESIG PREFIX A3A2 Revision V1 Terminal, Coax, Rt Angle D-607-10 06090 Same as E1 Cable, Assembly 50-Position IDMD-25-T-6.0...
Page 223 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Thru Same as C9 Same as C38 Same as C37 Same as C9 Capacitor, Tantalum, 68µF, ±20%, 10V 841293-31 14632 Capacitor, Ceramic, 4700pF, ±10%, 50V...
Page 224 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as C9 Capacitor .47µF, ±10%, 25V VJ1210Y474KXXMT 95275 Same as C94 Thru Same as C9 C100 Same as C53...
Page 225 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 C137 Same as C9 C138 Same as C15 C139 Same as C103 C140 Same as C9 C141 Same as C26...
Page 226 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 C187 Same as C9 C188 Same as C45 C189 Thru Same as C9 C192 C193 Capacitor, Ceramic, 820pF, ±2%, 50V...
Page 227 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 C233 Same as C9 C234 Same as C1 C235 Same as C5 C236 Same as C208 C237 Same as C37...
Page 228 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 C297 Same as C45 C298 Same as C45 C299 Same as C9 C300 Same as C9 C301 Same as C26...
Page 229 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 CR13 Same as CR5 CR14 Same as CR5 CR15 Same as CR11 CR16 Same as CR5 CR17 Same as CR5...
Page 230 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as L7 Same as L11 Same as L9 Same as L9 Inductor 100nH, ±5% 841438-025 14632 Inductor 2700nH, ±5%...
Page 231 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as L7 Inductor 43nH, ±5%, 841438-016 14632 Same as L7 Thru Same as L10 Inductor, Power 100µH, +20, -15%...
Page 232 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as Q20 Same as Q12 Same as Q2 Same as Q2 Transistor, NPN MMBT3904LT1 04713 Same as Q2...
Page 233 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as R3 Same as R5 Same as R6 Same as R5 Same as R8 Resistor, Fixed, 4.7Ω, ±5%, .1W...
Page 234 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Same as R35 Same as R54 Same as R5 Same as R32 Same as R57 Same as R9 Same as R15 Resistor, Fixed, 220kΩ, ±5%, .1W...
Page 235 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R110 Same as R13 R111 Same as R54 R112 Same as R54 R113 Resistor, Fixed, 18kΩ, ±5%, .1W 841414-103...
Page 236 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R152 Same as R132 R153 Same as R142 R154 Resistor, Fixed, 150Ω, ±5%, .1W 841414-053 14632 R155 Same as R18...
Page 237 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R195 Same as R194 R196 Same as R15 R197 Thru Same as R2 R200 R201 Same as R12 R202...
Page 238 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R238 Same as R12 R239 Same as R132 R240 Same as R132 R241 Same as R154 R242 Resistor, Fixed, 1.0MΩ, ±5%, .1W...
Page 239 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R303 Resistor, Fixed, 390Ω, ±5%, .1W 841414-063 14632 R304 Same as R75 R305 Same as R37 R306 Same as R12...
Page 240 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 R353 Thru Same as R37 R358 R359 Same as R11 R360 Same as R9 R361 Same as R35 Transformer, Power Splitter...
Page 241 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR REF DESIG PREFIX A3A2 Integrated Circuit, Voltage Regulator, -5V MC79L05ACD 04713 Integrated Circuit, Quad 2-Input OR Gate 74HC32 02735 Integrated Circuit, CMOS, 3-To-8 Line Decoder, Demultiplexer 1...
Page 242 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MANUFACTURERS MFR. RECM DESIG DESCRIPTION ASSY PART NO. CODE VENDOR 7.5.4 TYPE 766032-1 POWER SUPPLY REF DESIG PREFIX PS1 Revision A Power Supply, 90-264 Vac Input 180892 14632 7-74 REPLACEMENT PARTS LIST...
Page 243 Courtesy of http://BlackRadios.terryo.org APPENDIX A 8611/SM SIGNAL MONITOR OPTION...
Page 244 Courtesy of http://BlackRadios.terryo.org THIS PAGE INTENTIONALLY LEFT BLANK A-ii...
Page 245: Table Page
WJ-RCS Receiver Control Software Operations............Remote Operations Using An RS-232 Interface............Writing Your Own Control Programs for the 8611/SM ..........A.9.1 How the WJ-8611 and the WJ-9168 Interact in the 8611/SM Option......A.9.2 Command Format ......................A.9.3 Data Format ........................
Page 246 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION THIS PAGE INTENTIONALLY LEFT BLANK A-iv TABLE OF CONTENTS...
Page 247: General Description
21.4 MHz. Since the 8611/SM can handle a signal with a bandwidth of up to 10 MHz, it is ideal for digitizing the WJ-8611’s rear panel SDU output. The 8611/SM provides a choice of two resolution bandwidths (8 kHz and 25 kHz) and seven sweep spans ranging between 0.1 to 10.0 MHz, providing the operator a means to optimize the monitor presentation.
Page 248 3rd-Order Intercept ........Greater than +5 dBm Image and IF Rejection......-60 dBc LO Level at IF Inputs........-70 dBm, maximum Active Control Interfaces ......IEEE-488 (at WJ-8611 rear panel) interface parses command messages and handles communications with WJ-9168 via internal RS-485 half-duplex interface at 38.4 kBaud...
Page 249: Configuration Details
Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION A.5 CONFIGURATION DETAILS The WJ-8611 and the WJ-9168 are configured at the factory for the 8611/SM implementation. No further action by the operator is required. The following paragraphs discuss the configuration setup in detail.
Page 250: Installation
+10 dBm. This SMA connector has an input impedance of 50 ohms. Cable W11 (P/N 17300-774-003) is provided to make the interconnection between this input and the WJ-8611’s SDU output. The SM IN 1 input is selected for IF pan processing via the A801 command.
Page 251: Sm In 2 Input
+10 dBm. This SMA connector has an input impedance of 50 ohms. Cable W11 (P/N 17300-774-003) is provided to make the interconnection between this input and the WJ-8611’s SDU output. The SM IN 2 input is selected for IF pan processing via the A802 command.
Page 252 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Figure A-3. WJ-8611 Rear Panel View with 8611/SM Inputs and Outputs Table A-2. SM CTL Connector Pin Functions Signal Type Description RS232 TXD (O) RS-232 RS-232 data, 2 wire interface RS232 RXD (I)
Page 253: Wj-Rcs Receiver Control Software Operations
WJ-RCS Receiver Control Software application. This application program requires a secondary IEEE-488 address for the WJ-9168 in addition to the primary bus address for the WJ-8611. When configuring the SM Interface, set the secondary address before setting the primary address.
Page 254: Command Format
FD . The WJ-9168 responds to all received messages. In order to prevent bus conflicts, the WJ-8611 waits for the completion of the WJ-9168 message or the expiration of an internal timer before accepting another signal monitor message. The initial timer is initiated upon the passing of a message to the WJ-9168 and expires after 8 seconds.
Page 255 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION A.9.3 DATA FORMAT The WJ-9168 transfers panoramic signal strength information as a series of binary data bytes. Each data byte represents the level of signal energy at one point in the IF spectrum being swept by the unit. These binary data bytes are transmitted in a block format.
Page 256 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Once the Start Processing command (A2 ) is given, the WJ-9168 begins the transfer of panoramic Signal Strength information. This data is transmitted in a block format as described in the following: Block Format: Variable block size;...
Page 257 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION transmission is established by the sweep length that has been set by the last Sweep Span Select (A0 ) and Compression (A1 ) commands. Block Format: Single block of variable size depending on sweep span and compression selections.
Page 258 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION DATA SPECTRAL ORIENTATION Since the WJ-9168 can handle both upright and inverted spectral inputs, the included endpoint changes depending on the SPTI command setting. For upright spectral inputs, the low frequency end point is included. For inverted spectral inputs, the high frequency endpoint is included.
Page 259 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands Command Function Description Sweep Span Primary sweep setup command for the WJ-9168. This command Select determines the resolution bandwidth and frequency step size most appropriate for the selected span. The number of data points per frequency step size is fixed.
Page 260 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands (Continued) Command Function Description Data This command selects the effective display resolution, and provides a Compression simple form of data compression. If less than the maximum number of points is selected, the WJ-9168 chooses the peak value from a set of points and sends only this value.
Page 261 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands (Continued) Command Function Description Fixed Tune This command tunes the WJ-9168 to a fixed frequency within its 10 MHz Mode span range. The device does not sweep. The Signal Strength query command may be used to measure and report the signal strength while the WJ-9168 is fixed at the desired frequency.
Page 262 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands (Continued) Command Function Description SPTI Selects Spectral Inversion option. Many receivers have IF outputs that Selection are spectrally inverted (such as the WJ-8654). Others have IF outputs that change their “spectral sense’ depending upon what band they are tuned to (such as the WJ-8654 equipped with a microwave frequency extender).
Page 263 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands (Continued) Command Function Description (Cont.) If a bit is set for any reason, it remains set until the BIT command is issued to read the WJ-9168 status. Thus, if there is an intermittent problem, the status byte will indicate it, even though the error condition may not be currently in effect.
Page 264 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Table A-3. 8611/SM Commands (Continued) Command Function Description This command sets the WJ-9168 to either send or not send a termination Termination at the end of a response message. The argument set is as follows: Mode –...
Page 265: Replacement Parts List
External SMA Male-to-BNC Male Cable 17300-774-003 14632 A.11 8611/SM SIGNAL MONITOR OPTION SCHEMATIC DIAGRAM Figure A-5 is a schematic diagram of the 8611/SM option depicting the WJ-9168 interconnection to the WJ-8611 Digital Control Assembly (A2) and the rear panel connectors. APPENDIX A A-19...
Page 266 Courtesy of http://BlackRadios.terryo.org 8611/SM SIGNAL MONITOR OPTION Figure A-5. 8611/SM Signal Monitor Option Schematic Diagram (384476) Rev A A-20 APPENDIX A...
Page 267 Courtesy of http://BlackRadios.terryo.org FOLDOUTS FP-i...
Page 268 Courtesy of http://BlackRadios.terryo.org THIS PAGE INTENTIONALLY LEFT BLANK FP-ii...
Page 269 1.02 CENTER 1.82 18.00 SUPPORT 2.95 BRACKET 4.47 WARNING DO NOT USE SCREWS LONGER THAN ONE-HALF INCH FOR MOUNTING SLIDE RAILS. PERMANENT DAMAGE WILL RESULT. 5.19 1.71 95-1196 4.250 5.88 11.000 FO-1. WJ-8611 Digital VHF/UHF Receiver Critical Dimensions FP-1/(FP-2 blank)
Page 270 ERROR ENABLE ENABLE REGISTER REGISTER DEE DEE? DVE DVE? & & & & & & & & & & & & & DEVICE HARDWARE DEPENDENT DEVICE ERROR ERROR REGISTER REGISTER DVR? DER? 95-1191 FO-2. WJ-8611 Status Data Structure FP-3/(FP-4 blank)
Page 271 OUTPUT VIDEO CIRCUITRY PHONE SERIAL AUDIO CONTROL POWER BUS TYPE 766032 +13.5 V/+5.5 V/-13.5 V TYPE 797229 FRONT PANEL SWITCHING POWER SUPPLY 90-264 VAC PHONES (A1) (PS1) 47-63 Hz F O-3. WJ-8611 Digital VHF/UHF Receiver Functional Block Diagram FP-5/(FP-6 blank)
Page 272 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 0 - 1000 MHz 1ST IF FILTER AMPLIFIER LP FILTER RF AMPLIFIER LP FILTER CF=1350 MHz 1ST MIXER PRESELECTION A 500 - 1000 MHz INPUT 16-dB B 250 - 500 MHz PROTECTION ATTENUATOR...
Page 273 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER OUTPUT BANDPASS FILTER AMPLIFIER 8 -10 MHz BW OUTPUT (21.4 MHz) 2DN IF FILTER 2ND IF 2ND IF CRYSTAL FILTER ROOFING FILTER 21.4 MHz CF AMPLIFIER AMPLIFIER 200 kHz BW 2ND MIXER 1349.15-...
Page 274 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FPGA ANALOG AUDIO VIDEO OUT DSPA AUDIO INTERFACE OUTPUT SWITCHES DIGITAL U70, U109 DACS XTB1 U2-U3, U5-U10, LOGIC AND AMPS FILTERS LINE AUDIO U100 U42, U45 (PART OF U69) U43-U44, PROGRAMMABLE U37, U38...
Page 275 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER MICRO- CONTROLLER ADDRESS BUS (A0: A18) UP/DOWN FREQUENCY AN0-AN6 COUNTER ENCODER CH B EPROM 64K X 16 32K X 8 MODE DATA BUS (00 : 15) ENCODER CH B SEGMENT DIGIT/COLUMN DRIVER DRIVER...
Page 276 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER LINE A LINE B WARNING DO NOT USE SCREWS LONGER THAN ONE-HALF INCH FOR MOUNTING SLIDE RAILS. PERMANENT DA FO-8. WJ-8611 Digital VHF/UHF Receiver, Module Location Drawing 581957 FP-15/(FP-16 blank)
Page 277 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 95-1198 FO-9. Part 482554 Front Panel Control PC Assembly (A1A1) Component Location Drawing 482547 FP-17/(FP-18 blank)
Page 278 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-10. Part 482929 Display PC Assembly (A1A2) Component Location Drawing 482929 FP-19/(FP-20 blank)
Page 279 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER (TOP VIEW) FO-11. Type 797168 Digital Control PC Assembly (A2), Component Location Drawing 797168 (Sheet 1 of 2) FP-21/(FP-22 blank)
Page 280 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER (BOTTOM VIEW) FO-11. Type 797168 Digital Control PC Assembly (A2), Component Location Drawing 797168 (Sheet 2 of 2) FP-23/(FP-24 blank)
Page 281 Courtesy of http://BlackRadios.terryo.org WJ-8711 DIGITAL VHF/UHF RECEIVER 95-1201 (TOP VIEW) FO-12. Part 482902 1st LO/1st Converter PC Assembly (A3A1), Component Location Drawing 482902 (Sheet 1 of 2) FP-25/(FP-26 blank)
Page 282 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 95-1201A (BOTTOM VIEW) FO-12. Part 482902 1st LO/1st Converter PC Assembly (A3A1), Component Location Drawing 482902 (Sheet 2 of 2) FP-27/(FP-28 blank)
Page 283 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 95-1202 (TOP VIEW) FO-13. Part 482903 2nd LO/2nd Converter PC Assembly (A3A2), Component Location Drawing 482903 (Sheet 1 of 2) FP-29/(FP-30 blank)
Page 284 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER 95-1202 (BOTTOM VIEW) FO-13. Part 482903 2nd LO/2nd Converter PC Assembly (A3A2), Component Location Drawing 482903 (Sheet 2 of 2) FP-31/(FP-32 blank)
Page 285 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-14. Type 797229-2 Front Panel Assembly (A1) Schematic Diagram 482930 (A) FP-33/(FP-34 blank)
Page 286 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-15. Part 482554-2 Front Panel Control PC Assembly (A1A1), Schematic Diagram 581643 (G) FP-35/(FP-36 blank)
Page 287 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-16. Part 482929-1 Display PC Assembly (A1A2), Schematic Diagram 581885 (B1) FP-37/(FP-38 blank)
Page 288 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 1 of 7) (S) FP-39/(FP-40 blank)
Page 289 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 2 of 7) (S) FP-41/(FP-42 blank)
Page 290 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 3 of 7) (S) FP-43/(FP-44 blank)
Page 291 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 4 of 7) (S) FP-45/(FP-46 blank)
Page 292 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 5 of 7) (S) FP-47/(FP-48 blank)
Page 293 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-19. Part 482902-1 1st LO/1st Converter PC Assembly (A3A1), Schematic Diagram 581883 (Sheet 2 of 2) (R) FP-57/(FP-58 blank)
Page 294 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 6 of 7) (S) FP-49/(FP-50 blank)
Page 295 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-17. Type 797168-1 Digital Control PC Assembly (A2), Schematic Diagram 581765 (Sheet 7 of 7) (S) FP-51/(FP-52 blank)
Page 296 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-18. Type 797228-1 RF Tuner Assembly (A3), Schematic Diagram 482883 (A) FP-53/(FP-54 blank)
Page 297 Courtesy of http://BlackRadios.terryo.org WJ-8611 DIGITAL VHF/UHF RECEIVER FO-19. Part 482902-1 1st LO/1st Converter PC Assembly (A3A1), Schematic Diagram 581883 (Sheet 1 of 2) (R) FP-55/(FP-56 blank)
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DRS WJ-8611 Installation, Operation And Maintenance Manual

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