[Premium-Rx] WJ8651D-4 SN11 Description

[Steve Pappin via Premium-Rx]

The WJ8615D-4 has been sold. Thanks to everyone who responded.

Best Regards,
Steve

----- Original Message ----- 
From: "Steve Pappin" <pappy92651 at yahoo.com>
To: <premium-rx at mailman.qth.net>
Sent: Thursday, July 02, 2015 11:52 AM
Subject: WJ8651D-4 SN11 Description


> WJ8615D-4. Here's a complete description of the radio as requested. It's 
> on eBay with a fixed price but I can take it down if someone on premium-rx 
> wants it: $1500.00 plus shipping.
>
> Best Regards,
> Steve
>
> Watkins-Johnson WJ-8615D-4 sn 11 HF/VHF/UHF Receiver 2 MHz - 1100 MHz 
> (this version has all the desirable options loaded): Watkins-Johnson 
> WJ-8615D-4 HF/VHF/UHF receiver fully optioned. It was manufactured in 1986 
> and it is a late model.  The microprocessor is a Motorola 6809. Firmware 
> located in 2 EPROMs defines the radios command set. The WJ-8615D-4 has 
> additional shielding incorporated to reduce LO oscillator emissions and it 
> meets MIL-STD-461. Operations such as scanning and stepping can be 
> controlled by a master receiver over the 488 interface (not included). 
> Some options are configured by plug in cards and firmware changes. This 
> unit has firmware VER E.1.5 making it usable as a hand off receiver. It 
> can be controlled by an 8615P or 8610 controller. This radio also has the 
> 2nd LO overload option. If the input signal exceeds -50 dBm and COR is 
> active audio will be muted and the signal meter will go to zero. If COR is 
> not set audio will pass even if the 2nd LO is overloaded. The wide IF 
> filter selection makes this radio ideal for all types of signal search. 
> AFC on this radio is very fast and accurate making it ideal for satellite 
> tracking. This radio has a number of very nice options.
>
>
> Notes:
> 1) This radio also has the optional internal tracking pre-selector and  2 
> MHz to 1100 MHz frequency extenders.
> 2) The firmware is the correct version, VER E.1.5. Read about the major 
> features of operation in the " Basic Operation" paragraph on the lower 
> half of this page.
> 3) This radio will receive all common modulation types both narrow and 
> wide band (FM mobile, FM Broadcast, Single Side Band, CW, etc). It spans 
> all of the HF shortwave, VHF, and UHF Bands and there are no gaps.
> 4) Manual local tuning or remote automated searches are programmable when 
> used with an external controller (not provided).
> 5) On this version AFC works with all bandwidths.
> 6) The first IF BW is 10 KHz, not 20 KHz. The filter was updated but the 
> overlay was not. One picture shows the actual filters that are installed.
>
>
>
> Features:
> Frequency Range- 2 MHz to 1100 MHz, no gaps, 100 Hz increments minimum
> Modes- AM, FM, CW, PLS, ISB, SSB, AGC, AFC, Master/Slave, Scan, Step, 
> Printer, Signal Monitor Output
> Side Band Filters: The SSB, USB, LSB, and ISB filters are 2.85 KHz and the 
> roofing filter is 10 KHz (perfect for HF SSB)
>
> Antenna Switch- No, 1 fixed input
>
> IF Bandwidths Installed- 10 KHz, 100 KHz, 500 KHz, 1 MHz, 4 MHz (2.85 KHz 
> for side band operation)
>
> Tuning Rates- variable
> COR / Squelch- variable from 0 to 80, and memory lock outs
> Dwell- Adjustable Step / Scan rate or delay up to ~200 channels per second 
> with external controller (see SSL external controller not included)
>
> Memories- 150 independently user configurable memories in any combination 
> or 74 segment setups (see SSL)
>
> Manual Gain- Audio and RF/IF
> Front Panel Jacks- Phones
> Rear Panel Audio-  up to 200 mW into 600 Ohms, BNC, output adjusted by 
> rear panel pot
> Antenna Jacks- One female N connector
> Rear Panel BNC jacks- Ext Ref, SW IF, FM MON, SW VIDEO, WBO IF, COR, USB 
> audio, LSB audio
> Auxiliary Connectors- J13 DB-15, SM 21.4 MHz, Printer, Audio, data, hand 
> off, and J14 Aux
> Remote Control- IEEE 488 interface for external computer control, address 
> set by internal DIP switch or programmed by front panel
>
> Power- IEC 320 connector, 120 or 220 VAC switch selectable, 40 to 440 Hz
>
> Option Tag / Options Installed- HFE, PRE, FE, 5 IF, WBO, 488, ISB, SSL, 
> 2OL
>
> HFE / FE: Frequency Extender, 2 MHz to 1100 MHz
> WBO: Wide Band IF Output,  6 - 8 MHz depending on selected IF BW, Center 
> Frequency 21.4 MHz
> 488: IEEE 488 Computer Interface
> MS: Master / Slave allows front panel controls of a master receiver to 
> control slave receivers, hand off, etc (see manual for requirements and 
> compatibility SSL).
>
>
> Basic Operation: The 8615D-4 is a compact automated surveillance receiver 
> that was design by Watkins-Johnson to intercept all types of radio 
> traffic. This D-4 version represents a configuration called SSL (Scan Step 
> Lockout). The operator can choose manual operations from the front panel 
> or automatically search for signals by using a remote controller such as 
> an 8615P radio or 8610 controller. Stepping is a feature that allows the 
> radio to scan preset frequencies that the operator places in memory. 
> Scanning is a feature that allows the radio to sweep a preset range of 
> frequencies. All of the modulation modes and IF bandwidths can be 
> configured in any combination. The COR / Squelch functions allow the 
> operator to decide when the radio responds to an active signal and decode 
> the audio signal. AFC (automatic frequency control) when selected allows 
> the radio to track a moving signal or lock on the center of a signal that 
> is off frequency. During programmed searches or manual sweeps this feature 
> can help locate signals that are periodic or weak. The wide selection of 
> IF bandwidths and modulation types allows listening to all common types of 
> transmission including data types. The LED tuning bar indicates 
> approximate center frequency tuning. A phone jack and volume knob are 
> provided for private listening. The rear panel has a number of jacks that 
> allow the radio to be connected to decoders, audio devices, computers, 
> printers, other radios. This radio was designed to directly connect to the 
> WJ SM-9205 and SM-9206 half rack signal monitors. If you want to know more 
> about this radio please register on the PCS Associates WEB site and 
> download the manuals.
>
>
>
> Repair History: This receiver is fully restored. The critical tantalum 
> capacitors have been replaced and the radio has been aligned. There is a 1 
> year warranty. The tuning knob, headphone knob, and tuning encoder have 
> been replaced.
>
> Alignments Performed- Reference, A/D, AGC, AFC, COR, AM / FM / CW / SSB 
> demodulator, uP Power Fail Adjust, Verified DC operating voltages.
> Condition: This receiver is working perfectly. I would rate it 
> cosmetically as a 9 on a scale of 1 to 10. There are signs of age, keys 
> are normal color, minor scratches, no front panel oxidation. It is in 
> overall excellent condition. The 488 interface receives commands and 
> passes data. The firmware is version E.1.5.
> Accessories: A new line cord has been provided. The supplied CD contains a 
> copy of the 8615D and S1 manuals.
> Note: Forced air cooling is not required for this type of receiver. The 
> receiver has an internal low noise cooling fan fitted for office 
> applications. 


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