Signia-IDT WJ-8607A Installation And Operation Manual
INSTALLATION AND OPERATION MANUAL
FOR THE
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
P/N 181733-001, Revision H
Copyright Signia-IDT, Inc. 1995
All Rights Reserved
Signia-IDT, Inc.
700 Quince Orchard Road
Gaithersburg, Maryland 20878-1794
June 2003
PROPRIETARY STATEMENT
This document and subject matter disclosed herein are proprietary items to
which Signia-IDT, 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.
EXPORT STATEMENT
The technical data contained in these manuals is controlled for export by
the U.S. Department of State under the International Traffic in Arms
Regulations. It may not be re-exported, transferred or diverted to any other
end-user or any other end-use without the prior written approval of the
Office of Defense Trade Controls.
WARRANTY
Seller warrants for a period of one year from the date of shipment, unless a
different period has been agreed upon and incorporated into the Contract,
that the products delivered or services rendered will conform to the
specifications and be free from defects in workmanship and materials.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU
OF ALL OTHER WARRANTIES OF MERCHANTABILITY, FITNESS
FOR PURPOSE, OR OTHER WARRANTIES OR GUARANTIES OF
ANY KIND OR DESCRIPTION, WHETHER STATUTORY, EXPRESS,
OR IMPLIED. If the goods delivered or services performed fail to
conform to the warranty stated in this clause, Seller will correct the
nonconformity at its expense by such repair, adjustment, modification, or
replacement of the goods or services as Seller deems expedient. THE
FOREGOING REMEDY OF BUYER FOR ANY FAILURE OF THE
GOODS OR SERVICES TO MEET ANY WARRANTY IS EXCLUSIVE.
BUYER EXPRESSLY AGREES THAT THE LIABILITY OF SELLER
UNDER ANY WARRANTY SHALL NOT INCLUDE DAMAGE TO OR
LOSS OF PROPERTY OTHER THAN THE GOODS COVERED BY
THE CONTRACT; LOSS OF PROFITS OR REVENUE; INCREASED
COSTS OF ANY KIND; CLAIMS OF CUSTOMERS OF BUYER; OR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES. As to goods or components where the customer has funded
the repair, Seller will warrant as limited above, the repaired portion of the
unit for three months from the date of reshipment. EQUIPMENT OR
PARTS DESCRIBED AS BEING MANUFACTURED BY OTHERS
ARE SOLD BY SELLER AS IS and Buyer must look to the respective
manufacturer for any and all claims with regard to said equipment or parts.
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WJ-8607A VHF/UHF SURVEILLANCE RECEIVER REVISION RECORD
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
INSTALLATION AND OPERATION MANUAL
REVISION RECORD
Revision Description Date
A Initial issue. 10/99
B Incorporated ECO 040960. 12/00
C Incorporated ECO 041867. 3/02
D Incorporated ECO 041936. 4/02
E Incorporated ECO 042597. 3/03
F Incorporated ECO 040398. 3/03
H Incorporated ECO 043430. 6/03
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TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
SECTION I
GENERAL DESCRIPTION
Paragraph
Page
1.1 Electrical Characteristics.......................................................................................... 1-1
1.2 Mechanical Characteristics ...................................................................................... 1-1
1.3 Equipment Supplied................................................................................................. 1-5
1.4 Equipment Required But Not Supplied ................................................................... 1-5
1.5 Receiver Options...................................................................................................... 1-5
1.5.1 UHF Frequency Extender Option (860XA/FE)....................................................... 1-5
1.5.2 Wideband Output Option (860X/WBO) .................................................................. 1-5
1.5.3 IF Bandwidth Option (860X/BWS) ......................................................................... 1-5
1.5.4 Single Sideband Option (860X/SSB)....................................................................... 1-6
1.5.5 Environment Upgrade Option (8607A/ENV) .......................................................... 1-6
1.5.6 Miniceptor Control Software Option (860X/MCS-1).............................................. 1-6
1.5.7 Hewlett-Packard Interface Loop Option (8607A/HPIL).......................................... 1-6
1.5.8 Calibration Option (860XA/CAL) ........................................................................... 1-6
1.5.9 3 GHz Frequency Extender (860XA/3GFE)............................................................ 1-8
1.5.10 21.4 MHz Amplifier/10 MHz Reference Option (8607A/21.4AMP)...................... 1-8
1.6 Software Release History......................................................................................... 1-8
SECTION II
INSTALLATION
Paragraph
Page
2.1 Unpacking and Inspection........................................................................................ 2-1
2.2 Installation ............................................................................................................... 2-1
2.2.1 Mounting Considerations......................................................................................... 2-1
2.3 Signal Connection.................................................................................................... 2-3
2.3.1 SW IF, Switched IF Output (A4J2) ......................................................................... 2-4
2.3.2 AUDIO, Line Audio Output (A4J3) ........................................................................ 2-4
2.3.3 PHONE, Headphones Jack (A4J1) .......................................................................... 2-4
2.3.4 FM MON, FM Monitor Output (A4J4) ................................................................... 2-5
2.3.5 SAO, Switched Audio Output (A4J5) ..................................................................... 2-5
2.3.6 SW VID, Switched Video Output (A4J6)................................................................ 2-6
2.3.7 REF IN, External Reference Input (A2J4)............................................................... 2-6
2.3.8 RF IN, Antenna Input (A3J1) .................................................................................. 2-6
2.3.9 12VDC INPUT (A1J14) .......................................................................................... 2-6
2.3.10 SERIAL INTFC 1, Serial Interface I/O (A1J7) ....................................................... 2-6
2.3.11 SERIAL INTFC 2, Serial Interface I/O (A1J1) ....................................................... 2-7
ix
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
SECTION II (Continued)
INSTALLATION
Paragraph
Page
2.3.12 AUX, Auxiliary for COR, Spectrum Inversion, and Log Display (A1J8)............... 2-8
2.3.12.1 Spectrum Inversion (Pin 1) ...................................................................................... 2-8
2.3.12.2 COR (Pin 3) ............................................................................................................. 2-8
2.3.12.3 Log Display (Pin 4).................................................................................................. 2-9
2.3.12.4 Sync In (Pin 5) ......................................................................................................... 2-10
2.3.12.5 Sync Out (Pin 6) ...................................................................................................... 2-10
2.3.12.6 WBIF, Wideband IF Output (A3J3) ........................................................................ 2-10
2.4 Configuring the WJ-8607A for Operation............................................................... 2-10
2.4.1 A1S2 - Optional HPIL Interface Address ................................................................ 2-11
2.4.2 A1S2 - Configuration Mode .................................................................................... 2-11
2.4.3 A1S2 - Reference Generator Source ........................................................................ 2-13
2.4.4 A1S3 - Serial Interface 2, Mode and Address Selection.......................................... 2-13
2.4.5 A1S3 - Serial Interface Type Selection.................................................................... 2-13
2.4.6 A1S3 - Serial Interface 2 Baud Rate ........................................................................ 2-13
2.4.7 A1S3 - Serial Interface 1 Baud Rate ........................................................................ 2-13
SECTION III
OPERATION
Paragraph
Page
3.1 Operation ................................................................................................................. 3-1
3.2 Controls and Indicators............................................................................................ 3-1
3.2.1 POWER Switch ....................................................................................................... 3-1
3.2.2 Power Indicator (PWR)............................................................................................ 3-1
3.2.3 RUN Indicator.......................................................................................................... 3-1
3.2.4 COR (Carrier Operated Relay) Indicator ................................................................. 3-2
3.2.5 ERR Indicator .......................................................................................................... 3-2
3.3 Modes of Operation ................................................................................................. 3-2
3.3.1 Manual (Fixed Tuned) Mode ................................................................................... 3-3
3.3.1.1 Setting The Tuned Frequency.................................................................................. 3-3
3.3.1.2 Selecting The Detection Mode................................................................................. 3-3
3.3.1.3 Manual Attenuation and AGC Operation ................................................................ 3-4
3.3.1.4 Carrier-Operated Relay (COR) Operation ............................................................... 3-5
3.3.1.5 AFC Operation......................................................................................................... 3-6
x
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
SECTION III (Continued)
OPERATION
Paragraph
Page
3.3.1.6 IF Bandwidth Selection............................................................................................ 3-6
3.3.1.7 Video Bandwidth Selection ..................................................................................... 3-6
3.3.1.8 BFO and IFO Tuning............................................................................................... 3-6
3.3.2 Sweep Mode ............................................................................................................ 3-7
3.3.2.1 Sweep Lockout ........................................................................................................ 3-8
3.3.2.2 Enhanced Sweep Operation ..................................................................................... 3-8
3.3.2.3 Sweep Report Action Control (Sweep RAC) .......................................................... 3-9
3.3.3 Step Mode ................................................................................................................ 3-9
3.3.3.1 Enhanced Step Operation......................................................................................... 3-10
3.3.3.2 Step Report Action Control (Step RAC) ................................................................. 3-10
3.3.4 Suspend Function..................................................................................................... 3-11
3.3.5 Dwell Timers ........................................................................................................... 3-11
3.3.5.1 Pre-Dwell Timer ...................................................................................................... 3-11
3.3.5.2 Signal Dwell Timer.................................................................................................. 3-11
3.3.5.3 Post Loss Dwell Timer............................................................................................. 3-12
3.3.6 Sweep/Step Data Output Function ........................................................................... 3-12
3.3.7 Using SYNC IN/SYNC OUT Signals to Control SWEEP/STEP Operation........... 3-14
3.4 Receiver Control Using ASCII Command Messages .............................................. 3-14
3.4.1 ASCII Command Message Format .......................................................................... 3-14
3.4.1.1 ASCII Message Processing...................................................................................... 3-20
3.4.1.2 Query Response Format........................................................................................... 3-20
3.4.1.3 Numeric Data Representation .................................................................................. 3-20
3.4.2 Communication Errors............................................................................................. 3-21
3.4.3 Device Messages...................................................................................................... 3-21
3.4.3.1 General Device Messages ........................................................................................ 3-22
3.4.3.2 Signal Readings Messages....................................................................................... 3-29
3.4.3.3 Sweep and Step Modes Setup Parameters Messages............................................... 3-31
3.4.3.4 Operation Control Messages.................................................................................... 3-35
3.4.3.5 Memory Operation Messages .................................................................................. 3-39
3.4.3.6 Sweep Lockout Messages........................................................................................ 3-41
3.4.3.7 Queue Messages....................................................................................................... 3-42
3.4.4 Attenuator Test Operations ...................................................................................... 3-42
3.4.5 Miniceptor Configuration Messages ........................................................................ 3-43
3.4.6 Miniceptor Communication Messages..................................................................... 3-48
3.4.7 Miniceptor Status Summary .................................................................................... 3-53
3.4.7.1 Status Bytes.............................................................................................................. 3-54
3.4.7.2 Event Status Register ............................................................................................... 3-55
3.4.7.3 Device-Dependent Error Register............................................................................ 3-56
3.4.7.4 Receiver Status Register .......................................................................................... 3-57
3.5 Receiver Control Using Binary Commands............................................................. 3-59
3.5.1 The Frequency Binary Command............................................................................ 3-59
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TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
SECTION III (Continued)
OPERATION
Paragraph
Page
3.5.2 The Set Receiver Binary Command......................................................................... 3-60
3.5.3 The Attenuation Dump Binary Command ............................................................... 3-61
3.5.4 The Advance Binary Command............................................................................... 3-61
3.6 Communications/Protocol Details for the Remote Interfaces.................................. 3-62
3.6.1 Single-Drop Mode I/O Operation ............................................................................ 3-62
3.6.1.1 XON/XOFF Protocol ............................................................................................... 3-63
3.6.1.2 ENQ/ACK Protocol ................................................................................................. 3-63
3.6.1.3 Terminator ............................................................................................................... 3-63
3.6.1.4 Device Clear............................................................................................................. 3-63
3.6.1.5 Service Request (SRQ) ............................................................................................ 3-64
3.6.1.6 Buffer Handling ....................................................................................................... 3-64
3.6.1.6.1 Input Buffer.............................................................................................................. 3-64
3.6.1.6.2 Output Buffer ........................................................................................................... 3-64
3.6.1.7 Supported Communications Control Commands..................................................... 3-65
3.6.2 Multi-Drop Mode I/O Operation ............................................................................. 3-65
3.6.2.1 Receiver Addressing ................................................................................................ 3-69
3.6.2.2 Terminators.............................................................................................................. 3-71
3.6.2.3 Device Clear............................................................................................................. 3-71
3.6.2.4 XON/XOFF Protocol ............................................................................................... 3-73
3.6.2.5 Service Request (SRQ) ............................................................................................ 3-73
3.6.2.6 Buffer Handling ....................................................................................................... 3-73
3.6.2.7 Supported Communications Control Commands..................................................... 3-73
3.6.3 Changing the User-Specified Baud Rate ................................................................. 3-73
3.7 Programming the Receiver to Accept a Different External Reference Frequency .. 3-74
SECTION IV
FUNCTIONAL DESCRIPTION
Paragraph
Page
4.1 Overall Functional Description................................................................................ 4-1
4.2 Detailed Functional Description .............................................................................. 4-2
xii
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
SECTION V
MAINTENANCE
Paragraph
Page
5.1 General..................................................................................................................... 5-1
5.2 Cleaning and Lubrication......................................................................................... 5-1
5.3 Inspection for Damage or Wear............................................................................... 5-1
5.4 Equipment Malfunctions.......................................................................................... 5-2
5.5 Preparation for Reshipment or Storage.................................................................... 5-2
5.5.1 Reshipping Equipment within the United States ..................................................... 5-3
5.5.2 Reshipping Equipment from Outsided the United States ........................................ 5-3
5.6 Updating Firmware Via EPROM Replacement ...................................................... 5-4
5.6.1 Procedure ................................................................................................................. 5-4
SECTION VI
REPLACEMENT PARTS LIST
Paragraph
Page
6.1 Unit Numbering Method.......................................................................................... 6-1
6.2 Reference Designation Prefix .................................................................................. 6-1
6.3 List of Manufacturers............................................................................................... 6-1
6.4 Parts List .................................................................................................................. 6-2
6.5 Type WJ-8607A Miniceptor Receiver Assembly, Main Chassis ............................ 6-3
6.5.1 Type 797339-1 Digital Control PC Assembly, A1.................................................. 6-6
6.5.1.1 Type 766019-1 DC/DC Power Supply, A1PS1....................................................... 6-16
6.5.1.1.1 Type 381987-1 DC/DC Converter Power Supply Assembly, A1PS1A1 ................ 6-17
6.5.1.1.2 Type 381988-1 DC/DC Converter Controller Assembly, A1PS1A2 ...................... 6-19
6.5.2 Type 797135-1 Synthesizer PC Assembly, A2........................................................ 6-20
6.5.3 Type 797156-1 RF Converter PC Assembly, A3 .................................................... 6-39
6.5.4 Type 796780-7 Demodulator PC Assembly, A4 ..................................................... 6-48
LIST OF TABLES
Page
Table
1-1 WJ-8607A VHF/UHF Surveillance Receiver, Specifications ...................................... 1-2
2-1 List of Connectors......................................................................................................... 2-3
2-2 Input/Output Mating Connectors .................................................................................. 2-3
xiii
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
LIST OF TABLES (Continued)
Page
Table
2-3 Serial Interface 1, Pin Assignments .............................................................................. 2-7
2-4 Serial Interface 2, Pin Assignments .............................................................................. 2-8
3-1 Alphabetical List of ASCII Remote Commands........................................................... 3-15
3-2 General Device Messages ............................................................................................ 3-22
3-3 Signal Readings Messages ........................................................................................... 3-30
3-4 Sweep and Step Setup Parameters Messages................................................................ 3-31
3-5 Operation Control Messages......................................................................................... 3-36
3-6 Memory Operation Messages ....................................................................................... 3-39
3-7 Sweep Lockout Messages ............................................................................................. 3-41
3-8 Signal Queue Messages ................................................................................................ 3-42
3-9 Attenuator Test Operations Messages........................................................................... 3-42
3-10 Configuration Messages................................................................................................ 3-44
3-11 Communication Messages ........................................................................................... 3-48
3-12 Status Byte Register, Bit Evaluation............................................................................. 3-55
3-13 Event Status Register, Bit Evaluation........................................................................... 3-56
3-14 Device-Dependent Error Register, Bit Evaluation........................................................ 3-57
3-15 Receiver Status Register, Bit Evaluation ...................................................................... 3-58
3-16 Supported Single-Drop Communications Control Commands..................................... 3-65
3-17 Device Address Selection ............................................................................................. 3-69
3-18 External Address Data Format...................................................................................... 3-71
3-19 Supported Multi-Drop Communications Control Commands...................................... 3-73
3-20 User-Specified Baud Rate Commands.......................................................................... 3-74
3-21 Common External References ...................................................................................... 3-75
xiv
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
LIST OF ILLUSTRATIONS
Page
Figure
1-1 WJ-8607A VHF/UHF Surveillance Receiver (Miniceptor) ......................................... 1-0
2-1 Mounting the Miniceptor .............................................................................................. 2-2
2-2 Miniceptor Front Panel Connectors .............................................................................. 2-5
2-3 RS-232C Adapter Cable, Type 383611 ........................................................................ 2-7
2-4 Serial Interface 2 Adapter Cable, Type 383570-001 .................................................... 2-9
2-5 DIP Switch and Fuse Cover Plate Location.................................................................. 2-11
2-6 DIP Switch Configurations........................................................................................... 2-12
3-1 RS-232 Multi-Drop Interface Mode ............................................................................. 3-66
3-2 RS-422 Multi-Drop Interface Mode ............................................................................. 3-67
3-3 RS-485 Multi-Drop Interface Mode ............................................................................. 3-68
3-4 Receiver Addressing State Transitions ......................................................................... 3-70
3-5 Host Addressing Timing Diagram ................................................................................ 3-71
3-6 Multi-Drop Communication Syntax for Host Control of the WJ-8607A ..................... 3-72
4-1 WJ-8607A Overall Functional Block Diagram ............................................................ 4-2
5-1 Location of EPROM Access Cover and EPROMs A1U2 and A1U3........................... 5-5
FOLDOUTS
Page
Figure
FO-1 WJ-8607A VHF/UHF Surveillance Receiver Critical Dimensions
Diagram 482627 ................................................................................................... FP-1
FO-2 Miniceptor Status Data Structure........................................................................... FP-3
FO-3 Type WJ-8607A Miniceptor Receiver, Main Chassis
Schematic Diagram 581581................................................................................... FP-5
FO-C-1 Type WJ-860XA/FE Frequency Extender Main Chassis,
Schematic Diagram 382058................................................................................... FP-C-1
xv
TABLE OF CONTENTS WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
TABLE OF CONTENTS (Continued)
APPENDICES
A WJ-8607A VHF/UHF Receiver IF Bandwidths
B WJ-860X/WBO Wideband Output Option
C WJ-860XA/FE Frequency Extender Option
D WJ-8607A/21.4AMP Option (P/N 181694-001)
E WJ-8607A/DSO Digital Scan Output Option (P/N 181186-001)
F-H Reserved
I 860X/MCS-1 Miniceptor Control Software Option (P/N 181185-001)
J 8607A/HPIL Hewlett-Packard Interface Loop Option (P/N 181184-001)
K 860XA/CAL Calibration Option (P/N 181183-001)
L 860X/3GFE 3GHz Frequency Extender Option (P/N 181182-001)
xvi
SECTION I
GENERAL DESCRIPTION
1-i
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
WBIF
AUX
SERIAL
INTFC 1
MINICEPTOR
IN
RF
INPUT
12VDC
SW
VID
SAO
FM
MON
AUDIO
IF
SW
POWER
PWR
SERIAL INTFC 2
COR
PHONE
IN
REF
ERR
RUN
Figure 1-1. WJ-8607A VHF/UHF Surveillance Receiver (Miniceptor)
1-0
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER GENERAL DESCRIPTION
SECTION I
GENERAL DESCRIPTION
1.1 ELECTRICAL CHARACTERISTICS
The WJ-8607A VHF/UHF Surveillance Receiver "Miniceptor", which is shown in Figure 1-1, is a
compact, lightweight, receiver for use in limited space applications. The Miniceptor detects AM, FM, CW and
Pulse signals over the frequency range of 20 to 512 MHz. Single Side Band (SSB) demodulation is available as an
installed option. The tuning range is extended to 2000 MHz when the 860XA/FE Option is installed. Installation of
the 860XA/3GFE Option extends the tuning range to 3000 MHz. Although the Miniceptor is not specified for
operation below 20 MHz, tuning to 2 MHz is allowed for applications where modest HF performance is acceptable.
Accurate tuning is provided by fully synthesized, low phase noise local oscillators. Up to five IF bandwidths may
be installed in the Miniceptor, ranging from 6.4 kHz to 8 MHz (dependent on customer requirements). These IF
filters may also be bypassed entirely, yielding a bandwidth of approximately 10 MHz. The Miniceptor achieves a
third-order intercept point of +6 dBm typical, while maintaining a typical noise figure of 8 dB. A built-in tracking
preselector with a nominal bandwidth of 10 percent reduces out-of-band signals.
Three basic modes of operation are available: Manual (fixed frequency), Sweep (contiguous
coverage from start to stop frequency), and Step (preprogrammed discrete frequencies). The Miniceptor is
interactive in all of its operational modes. When signal activity is detected, the host controller can be alerted. In
Sweep mode, a Lockout function is available for locking out portions of the RF spectrum. The Miniceptor contains
non-volatile memory for storage of up to 200 Sweep or Step setups and 200 Lockout bands. A Motorola 68HC11
Microcontroller is employed and is responsible for controlling and monitoring receiver functions such as automatic
gain control (AGC), automatic frequency control (AFC), synthesizer tuning, and I/O control functions.
All WJ-8607A control and analysis functions are managed remotely from an external device via
one of four user-selectable communication interfaces: an RS-232C full duplex interface, an RS-422A interface, an
RS-485 interface, and an optional Hewlett Packard Interface Loop (HPIL). ENQ/ACK and Xon/Xoff
communications formats are supported at data rates up to 230.4 kb/s.
Two IF outputs are provided. A wideband IF output provides nominally 10 dB of gain above the
RF input with 12 MHz of bandwidth. When the 860X/WBO Wideband Output Option is installed, a constant
-30 dBm output level at 21.4 MHz with a minimum bandwidth of 12 MHz is provided in place of the signal monitor
output. A switched IF output provides a sample of the predetected 21.4 MHz IF at a level of -30 dBm at the
selected IF bandwidth. Other outputs include FM monitor, switched audio, switched video, line audio, and phones.
In addition, a direct baseband output may be enabled, which allows the operator to translate the 21.4 MHz down to a
baseband output with a variable center frequency. When enabled, the baseband output is routed to the video output
jack, in lieu of the normal detected video.
See Table 1-1 for WJ-8607A VHF/UHF Surveillance Receiver specifications.
1.2 MECHANICAL CHARACTERISTICS
The standard configured Miniceptor contains four modules: Frequency Converter, Synthesizer,
Demodulator, and Digital Controller. Each module is a multilayer PC board with surface-mounted components on
one side and plug-in metal-cased components on the other side. The modules are attached to two milled-out
aluminum housings that make up the main chassis.
1-1
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
Table 1-1. WJ-8607A VHF/UHF Surveillance Receiver, Specifications
Frequency Range ....................................................20 to 512 MHz (2000 MHz with FE option) (3000 MHz with
3GFE option). Tuning allowed to 2 MHz
Tuning Resolution ..................................................100 Hz, synthesized
Internal Reference Accuracy..................................±1 part in 10E -6 (0 to 50°C)
External Reference Frequency...............................Selectable, 1, 5, or 10 MHz; 0 dBm nominal input level
Detection Modes.....................................................AM, FM, CW, and Pulse standard (SSB optional)
RF Input Impedance................................................50 ohms nominal
Preselection.............................................................Tracking Preselector, 20 to 512 MHz. 10 percent nominal
bandwidth with bypass mode. Five suboctave filters 512 to
2000 MHz (FE). Eight suboctave filters, 512 to 3000 MHz
(3GFE).
Input VSWR ...........................................................2.0:1 typical, 3.0:1 maximum at the tuned frequency
Noise Figure............................................................12 dB maximum, 20 to 512 MHz (Preselector on).
8 dB typical, 5 to 512 MHz (Preselector off).
13 dB maximum, 20 to 512 MHz with Preselector on and FE
15 dB maximum, 512 to 2000 MHz with FE option.
15 dB maximum, 512 to 3000 MHz with 3GFE option.
Intermodulation:
2nd Order Intercept Point.............................+45 dBm, 20 to 512 MHz (Preselector on)
+35 dBm, 512 to 3000 MHz
3rd Order Intercept Point..............................+6 dBm, 20 to 512 MHz (Preselector on)
0 dBm, 512 to 3000 MHz
+5 dBm typical, 2 to 20 MHz
Image Rejection......................................................80 dB minimum
90 dB typical
IF Rejection:
21.4 MHz......................................................90 dB minimum
691 MHz.......................................................90 dB minimum (Preselector on)
FE IF Rejection (Variable).....................................75 dB minimum (with FE option)
LO Phase Noise at 20 kHz Offset ..........................-93 dBc/Hz, 20 to 512 MHz
LO Phase Noise at 20 kHz Offset in
FE Bands..............................................................-88 dBc/Hz, 512-1410 MHz
-85 dBc/Hz, 1410-3000 MHz
Synthesizer Tuning Speed......................................300 µSec maximum (from receipt of the last data byte to within
10 kHz of the final frequency). When tuning from non-FE to FE
frequency, max tuning time is 5 mSec. The 3GHz FE tuning time
is 1 mSec typical (512 to 3000 MHz)
Sweep Tuning Speed..............................................200 µSec, typical for 25 kHz steps
Signal Monitor Output............................................Nominally 10 dB above RF input (WBO option provides -30 dBm
leveled)
Gain Control Modes...............................................Manual, automatic, 100 dB minimum range
AM Stability ...........................................................6 dB maximum change from AGC threshold to 100 dB above
AGC threshold (-5 dBm maximum input)
Internally Generated Spurious................................Less than -110 dBm equivalent input 20 to 3000 MHz)
LO Level at RF Input..............................................-100 dBm typical, -90 dBm maximum
1-2
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER GENERAL DESCRIPTION
Table 1-1. WJ-8607A VHF/UHF Surveillance Receiver, Specifications (Continued)
Switched Video Output..........................................0.5 volts peak-to-peak into 50 ohms (30 percent deviation in FM
or 50 percent AM modulation)
Video Frequency Response....................................DC to 1/2 the IF bandwidth, -3 dB
Line Audio Output..................................................5 mW minimum into 32 ohms
Headphone Audio Output.......................................5 mW minimum into 32 ohms
Switched Audio Output..........................................400 mV RMS into 600 ohms
Audio Frequency Response....................................200 Hz to 15 kHz minimum (can be bused with other similar
audio outputs)
FM Monitor Output................................................0.5 volts peak-to-peak with 30 percent FM deviation. DC
coupled, 100 kHz maximum bandwidth. 10 k-ohm load.
Ultimate FM S + N/N.............................................40 dB minimum in a 50 kHz bandwidth
Reciprocal Mixing..................................................With an input at rated sensitivity level in a 20 kHz bandwidth, an
out-of-band signal 350 kHz removed and 70 dB higher in level
will not degrade the S + N/N of the desired signal by more than
3 dB
Selected IF Output..................................................Centered at 21.4 MHz, -30 dBm nominal output level
IF Bandwidths.........................................................Five plus bypass mode (three supplied and two optional). See
Table I for selection
IF Shape Factor.......................................................See Table I
Translated IF Output...............................................2 MHz maximum center frequency. Output on the selected video
jack
COR/Squelch..........................................................Adjustable from 0 to 55 dB above the noise floor of the selected
bandwidth
Weight.....................................................................5 pounds nominal (FE option adds 1.5 pounds to weight)
Dimensions .............................................................1.5" x 6.5" x 10.5" (FE option adds 2.85" to length)
Power Requirements...............................................12 Volts DC (+9 to 16 VDC) (+11 to +16 VDC with 3GFE)
Power Consumption ...............................................21 watts nominal (20 to 512 MHz) (Add 6 watts for FE or 3GFE
option)
Remote Interface.....................................................Optional HPIL or Standard RS-232C, RS-422A, or RS-485
interface (supports only one at a time)
Handoff Interface....................................................HPIL interface option, compatible with WJ-8615P Receiver
Maximum RF Input
without damage ............................................+20 dBm
Temperature*
Operating
Temperature Range ......................................-25 to +55°C
Non-Operating..............................................-40 to +70°C
Shock.......................................................................Meets the environmental conditions of MIL-E-5400T, paragraph
3.2.24.6.1 pertaining to equipment shock
Vibration.................................................................Meets environmental conditions of MIL-STD-810D, method
514.3, section I-3.2.4, category 4-propeller aircraft. Figure
514.3-25(a) defines the power spectral density with Li =
0.3 (g2/Hz), and Fi = 68 Hz
* All Specifications herein apply over an operating temperature range of +20 to +30°C.
1-3
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
Table 1-1. WJ-8607A VHF/UHF Surveillance Receiver, Specifications (Continued)
Table I. Available Bandwidths and Rated Sensitivity
Bandwidth
(kHz)
3.2** (See Note 1)
6.0**
6.4**
10**
10G***
12.5**
15**
20**
25G***
30**
50**
50G***
75**
100**
250
300
500
1000
1000
4000
4000SF
5000
6000
8000
3:1
3:1
3:1
3:1
4:1
3:1
3:1
3:1
4:1
3:1
3:1
4:1
3:1
3:1
3:1
4:1
4:1
4:1
4:1
4:1
2:5:1
4:1
4:1
4:1
Shape Factor
60:3 dB
Sensitivity (dBm)*
20 to 512 MHz
-107
-105
-105
-104
-104
-104
-103
-101
-100
-99
-97
-97
-95
-94
-90
-89
-87
-84
-81
-78
-78
-77
-76
-75
* Sensitivity Conditions: Based on 20 to 512 MHz receiver. Add 4 dB for FE option
AM--An input signal AM modulated 50 percent by a 1-kHz tone will produce a minimum video output
S + N/N ratio of 10 dB.
FM--An input signal FM modulated at a 1-kHz rate with a peak deviation equal to 30 percent of the selected
IF BW will produce a minimum video output S + N/N ratio of 17 dB. (Note: A 400-Hz modulation rate is
required for IF bandwidths of 10 kHz or less.)
** This IF filter cannot be used in the 5th bandwidth position.
*** G denotes Gaussian response which are utilized for high speed operations in bandwidths less than 100 kHz.
Note 1: With the 3.2 kHz bandwidth, the audio and video outputs will be 6 dB less than published specifications
A power switch, all connectors and indicators of the Miniceptor are located on the front panel.
Four LEDs are provided for monitoring of the Miniceptor operating status. Connector types used are D-type,
multipin, SMA and SMB with the exception of the phone jack which is a subminiature stereo headphones jack.
1-4
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER GENERAL DESCRIPTION
1.3 EQUIPMENT SUPPLIED
Equipment supplied consists of the receiver (including the ordered options) and an accessory kit,
and an Installation and Operations, and Intermediate Maintenance manual.
1.4 EQUIPMENT REQUIRED BUT NOT SUPPLIED
To obtain full utilization of the Miniceptor, equipment from the following list should be selected.
1) Antenna, 50 ohm
2) Audio monitoring equipment:
• Speaker Panel
• Headphones, 8 ohms to 600 ohms
3) Controller device:
• Remote Controller equipped with RS-232C Interface
1.5 RECEIVER OPTIONS
1.5.1 UHF FREQUENCY EXTENDER OPTION (860XA/FE)
The UHF Frequency Extender (FE) option extends the tuning range of the receiver from 512 MHz
to 2000 MHz. The extended tuning range is accomplished by block converting five bands of the RF spectrum above
512 MHz into the normal tuning range of the receiver. The option screws onto the rear of the receiver, adding 2.85
inches (7.23 cm) to the overall length of the unit. Two additional PC assemblies are included in the FE's chassis; a
five-band oscillator and an RF converter with suboctave preselectors. Appendix C provides further details on the
860XA/FE option.
1.5.2 WIDEBAND OUTPUT OPTION (860X/WBO)
The Wideband Output (WBO) option provides a constant -30 dBm output level at 21.4 MHz
with a minimum bandwidth of 8 MHz. The WBO module mounts inside the receiver's chassis. See Appendix B
for further information on the Wideband Output option.
1.5.3 IF BANDWIDTH OPTION (860X/BWS)
Three IF bandwidths are supplied with the standard receiver. Two additional may be optionally
installed for a total of five IF bandwidths. The fifth IF filter must be 250 kHz or greater. See Table I in
Table 1-1 for the available bandwidth choices. See Appendix A for further information on IF bandwidth
options.
1-5
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
1.5.4 SINGLE SIDEBAND OPTION (860X/SSB)
The Single Sideband (SSB) option allows the receiver to demodulate upper or lower sideband
signals. The IF signal is converted from 21.4 MHz to 500 kHz, where it is filtered and demodulated. When the
SSB detection mode is selected via remote control, the receiver routes the 21.4 MHz IF through the narrowest
filter available from 6.4 kHz to 20 kHz. For optimum SSB operation, at least one of the five possible IF filters
should be between 6.4 kHz and 20 kHz.
1.5.5 ENVIRONMENTAL UPGRADE OPTION (8607A/ENV)
This option includes conformably coated PC boards allowing the receiver to pass
MIL-STD-810D Method 507.2, Humidity.
1.5.6 MINICEPTOR CONTROL SOFTWARE OPTION (860X/MCS-1)
This option is an MS-DOS based application program that can be used to control the receiver via
menus and display windows. Control of receiver operations such as manual, sweep immediate, sweep sector,
and step is provided. An RF panoramic display of intercepted signals is also provided. Hardware requirements
for this option is a 386/12 MHz (or higher) IBM-compatible personal computer equipped with an RS-232 serial
interface port, 256 kbytes of RAM, and a 5.25-inch floppy drive. Appendix I of this manual provides further
details on the Miniceptor Control Software.
1.5.7 HEWLETT-PACKARD INTERFACE LOOP OPTION (8607A/HPIL)
The HPIL (Hewlett-Packard Interface Loop) interface is a medium speed, medium distance, low
power serial interface loop. This interface offers an additional addressing scheme that allows up to 30 WJ-8607A
receivers to share a single interface bus. A service request capability is also included as part of HPIL.
Appendix J of this manual details this option.
1.5.8 CALIBRATION OPTION (860XA/CAL)
The Calibration (CAL) option improves the accuracy of absolute signal strength data returned
via the receiver's Sweep/Step Data (SSD) buffer to within +/-2.0 dB. This is compared to an accuracy of +/-6.0
dB for standard WJ-8607A receivers. The receiver calibration (performed at the factory prior to shipment)
consists of running a diagnostic program that characterizes the receiver's attenuator circuits and frequency versus
gain response. The compiled data is then loaded into EEPROM and accessed during absolute signal strength
calculations.
1-6
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER GENERAL DESCRIPTION
NOTE
The 860XA/CAL option is only available for receivers with
version 6.00 firmware or higher.
Receivers equipped with the 860XA/CAL option are identified with a "CAL" label affixed to the
receiver's rear panel. Appendix K of this manual further details this option.
1.5.9 3 GHZ FREQUENCY EXTENDER OPTION (860XA/3GFE)
The 3 GHz Frequency Extender option extends the tuning range of the receiver from 512 MHz
to 3000 MHz. The extended tuning range is accomplished by block-converting fourteen bands of the RF
spectrum above 512 MHz into an IF that is in the normal range of the receiver. The option screws onto the rear
of the receiver, adding 2.85 inches (7.23 cm) to the overall length of the unit. Two additional PC assemblies are
included in the Frequency Extender’s chassis; a Synthesizer and an RF Converter. Appendix L of this manual
provides further details on the 860XA/3GFE option.
1.5.10 21.4 MHz Amplifier/10 MHz Reference Option (8607A/21.4AMP)
The 8607A/21.4AMP 21.4 MHz Amplifier/10 MHz Reference option provides two additional
functions to the WJ-8607A Receiver. It provides a means of amplifying the 21.4 MHz output of the receiver by
30 dB, and provides the receiver’s 10 MHz reference signal at an external connector. When this option is
installed, the 21.4 MHz IF output at the front panel of the Miniceptor is routed to a rear panel SMA connector
via an external cable. The option then amplifies the IF signal by 30 dB before being routed to another rear panel
SMA connector.
1.6 SOFTWARE RELEASE HISTORY
The initial version of the receiver software is version 0.30, released August 1, 1994.
Version 0.31 was released August 23, 1994. This release corrected the following problem areas.
• An additional ESC A (stb_sts) was being sent upon the receipt of the SUS
command.
• RS-232 communications would sometimes stop after allowing the SRQ
mechanism to function and/or sending the ENQ byte.
• The Set_srq() code would still run when the masks (rcv_msk, esb_msk, and
stb_msk) were set to disallow the Set_srq() routines.
• Could not set up the SRQ mechanism for LO LOCK bit (Bit 1) of the SRE
register.
• When in a detection mode where the BFO was turned on, all other LO's other
than the 3rd LO were not reported when unlocked.
• If the detection mode was changed from a detection mode that had BFO off to
one that had BFO on, the unlocked 3rd LO (BFO), relocking during a non BFO
detection mode, would not clear the LO's out-of-lock LED.
1-7
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
Version 0.40 was released on August 30, 1994. This release added the 8607A/HPIL Interface
option and corrected the following problem areas.
• The COR LED would not extinguish when sector sweeping or stepping with the
AGC set to OFF and the COR set to infinite.
• The SYNC_OUT line was being set high before the receiver had actually
• The binary tuning scheme was not available from the SERIAL 1 interface.
Software versions 1.xx through 5.4x were not released.
finished tuning to the next sweep frequency during a scan.
Version 5.50 was released on September 30, 1994. This release added code in the parsers to find
a bad string (invalid configuration command) and then set the pointer properly for the next
• Unable to enter a letter into the Model number during unit configuration.
• Overrun errors on the SERIAL 2 interface when operating at 230.4 kbaud.
incoming command. The following problem areas were corrected.
Version 6.00 was released on February 3, 1995. This release added the CFG 1,0 remote
command allowing the receiver to be placed in the Configuration mode without accessing DIP
• When programming the EEPROM, the ee_buff array over ran variable data.
• Auto_task (sweep) was running before tune_task and lock_task.
switch A1S2. The following software problems have been corrected.
• Auto_task was not reset when the tune_task was reset.
Version 6.01 was released on March 14, 1995. This release changed the default data for the IF
• Multi-drop RS-232/485 operation.
Bandwidth structure. The following problem areas have been corrected.
• Occasionally, when returning the response to the FRQ? query, the "F" of the
returned string would be corrupted.
Version 6.02 was released on May 5, 1995. This release added configurable Frame Addressing
for use during multidrop operations.
Version 6.10 was released on September 22, 1995. This release added Enhanced Sweep/Step
Operation which adds Dynamic COR threshold per frequency increment.
Version 6.11 was released on October 24, 1995. This release changed the code to ignore the
12V line check to be ready for a temperature sensor added to new digital boards (#797136).
When the temperature sensor exists, the last field (AN7) of the ADC? command returns its
voltage.
Version 6.12 was released on December 8, 1995. This release corrected the following problems.
• When tuning from 117.9903 to 117.9904 MHz in binary format, the signal could
not be found at 117.9904. Correcting this problem added approximately 4 µs to
the binary tuning time.
1-8
WJ-8607A VHF/UHF SURVEILLANCE RECEIVER GENERAL DESCRIPTION
• The default frame address was not being put into EEPROM when bringing up a
new microprocessor.
• When in the RS-485 communication mode, the response to “FRQ?” was
sometimes corrupted.
Version 6.13 was released on January 17, 1996. This release corrected a problem that resulted
from the changes of version 6.12. When in Serial 1 (SER1) communication mode, an <ACK>
was being returned after sending a non-query command.
Version 6.14 was released on April 5, 1996. This release added a binary command (∧N or 0E16)
for querying the STB byte, fixed a problem where binary query responses were not
synchronized, and fixed another problem where the duart RTS line was not tristated.
Version 7.00 was released on November 8, 1996. This release resulted from the following
modifications:
• Improved the speed of the step feature by approximately 25%.
• Enhancements were made to recognize and control the 3 GHz frequency
extender option.
• When in sweep sector mode, the receiver would restart a sweep every time the
parameters of a memory channel were changed, even if that channel was not
included in the sweep list. This problem was corrected so that only a modified
memory channel that was included in the sweep list would cause a sweep to
restart.
Version 7.01 was released on September 8, 1997.
This version made no changes to the WJ-8607A. It was created to add support for the
WJ-8607B and WJ-8607C receivers. This version was not shipped, see version 7.02
release information.
Version 7.02 was released on September 23, 1997.
This version was created to correct a compiler error that surfaced in version 7.01.
Version 7.03 was released on March 25, 1999 to address a COR line output problem and
an HPIL communications problem. This version modified functions step( ) and
sweep( ) in auto c to conditionally suspend if core task( ) needs to run based on the
unlock flag. This version modified auto task( ), to prevent sending rcv_upd( ) for end
of sweep and end of step when sweeping (from memory) or stepping without any items
in the swl or stl list. It also changed calc_fnr_fne index and fnr_fe index from ubyte to
uword. New method of using the tables for the 3GHz FE needs the variables to have
range of uword not ubyte. This caused problems when trying to use the fre/fnf tablesin
conjunction with the 3GHz FE.
1-9
GENERAL DESCRIPTION WJ-8607A VHF/UHF SURVEILLANCE RECEIVER
NOTES
1-10
SECTION II
INSTALLATION
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