watkins-johnson.terryo.orgWatkins-Johnson history home page

Black Radios - Home Page Radio Manufacturers Index Black Radios Document Index Historical Roots in Brief Watkins-Johnson - Home Page Supporting this Research WJ & CEI Document Index Sales & Clearance WJ-CEI Home Page My Publications Research Material Donations Bio and Contact Collector Corner (Articles by collectors on how-to, repairs and projects) Visit the BlackRadios Facebook page for discussions and sharing information Watkins-Johnson & Communication Electronics, Inc This is one public window to my ongoing research into Watkins-Johnson and Communication Electronics, Inc and the history of American telemetry and surveillance equipment manufacturers (COMINT, SIGINT and ELINT). For other companies please see my Black Radios website . New on the WJ & CEI Site May 15, 2021 - The complete series of Watkins-Johnson Tech Notes are now permanently available for free download from the Internet Archive. Many thanks to Jim Fenton for the contribution and work to make this possible. https://archive.org/details/watkinsjohnsontechnotes May 6, 2021 - Factory manuals for the 1 Hz Tuning Option and the 10 Hz BFO Option in the WJ-8716 and WJ-8718 have thus far been unavailable. Paolo Viappiani sought to create these manuals from scratch and his draft manuals are big leap forward if you have these options. These are now available for download from the WJ & CEI Document Index page May 6, 2021 - Two new files for WJ-8716, WJ-8718 and MFP versions of these radios courtesy of Paolo Viappiani. 1) A WJ-8718/MFP troubleshooting guide , featuring corrections to the original WJ manuals and diagrams for easier trouibleshooting. 2) An updated field installation guide for the very desirable Microprocessor Front Panel (MFP) option into WJ-8716 and WJ-8718 radios. These documents can be found in the Collector Corner link show at the top of the page. March 22, 2021 - Five additional WJ-8718 and options manuals. Paolo Viappiani donated pdfs of five WJ-878 manuals. An enhanced manual for the rare WJ-8718-19 , which extended the coverage of the stock WJ-8718 to 100 MHz and four options manuals, WJ-8718/232 for serial control ports, WJ-8718/488-2 for a GPIB control port, WJ-8718/COR for the Carrier On Relay option and WJ-8718/FSK for the Frequency Shift Keying option. These are now available for download from the WJ & CEI Document Index page March 21, 2021 - Revamped feature: Collector Corner . A place for articles written by collectors and hobbyists on how to do things with these radios, tips and techniques on repairing and/or improving them, and projects involving these radios. Go to Collector Corner via the link in the masthead. This feature has existed since the start of the website but has been buried in the back pages. November 30, 2020 - The Supplemental Manual covering the Appendices for the WJ-8617B and WJ-8618B has been upgraded. The previous version had missing and incorrect pages. This document is available for download from the WJ & CEI Document Index page . November 29, 2020 - In the 1970s electronic assembly standards manuals were relatively common. I was trained to the NASA Workmanship Standards while working as a technican at the Space Science and Engineeering Center on the UW Madison campus. Here's the Watkins-Johnson Workmanship Standards Manual from 1978 which shows how to build high quality, long lasting, reliable electronic equipment. This document is now available for download from the WJ & CEI Document Index page August 30, 2020 - Two simple manuals for the WJ-8969 Microwave Receiving System . One is a 24 page overview of the system very basic info. The other is a 61 page operating manual and includes configuration, block diagrams... and three appendices; A: WJ-8969 Remote Interface , B: WJ-8969 Remote Control Using An IBM PC AT Industrial Computer, and C: WJ-8610A Controller/Extender. These are now available for download from the WJ & CEI Document Index page June 29, 2020 - Carl McGowan, G0KPE, has given permission to distribute his Visual Basic program for controlling a WJ-8712 receiver. The program was written for Win 95 & 98, performs well on XP and is untested on Win 7 or Win 10. A zip file of this software are now available for download from the WJ & CEI Document Index page June 29, 2020 - Added an operators manual for the WJ-8718/MFP , a factory article on the WJ-8711 DSP Fundamentals and an article written by Paolo Viapianni on field installation of the preselector option on any version of the WJ-8718 . These are now available for download from the WJ & CEI Document Index page June 28, 2020 - More software added, some written by hobbyists: WJ-RCS32 - Updated version of RCS. Suitable for one or more WJ-860x , WJ-860xA , WJ-8609A , WJ-8611 , WJ-8629 , WJ-8634 , WJ-8635 , WJ-8654 , WJ-871y , WJ-8721 , WJ-9902 , WJ-9903 , WJ-9904 or WJ-9908 . Will also display the spectrum from the WJ-9168 SDU. Steeper requirements of 486DX33 with 4 MB RAM and HD space and Windows 3.1 or 95. Windows 95 required for multiple receiver control. Manul included in the zip file. WJ-8712 v1.0 - Hobbyist written control software for this HF receiver. Sorry I didn't keep accurate nores on who sent it to me. WJ-8618B Labview control software via IEEE-488 - Another hobbyist written program that I didn't keep track of. WJ-861x simple serial control - Written by Geoff Bunza AD7JP. Zip files of this software are now available for download from the WJ & CEI Document Index page June 28, 2020 - A nice addition of three Waktins-Johnson software programs, all very old, but may still useful for hobbyists: PCSW - HF Receiver Control Software . Written for the WJ-871y series of receivers, including the HF-1000 . This requires a minimum of a 386/25 PC with a whooping 4 MB of RAM and Windows 3.1. RCS - Receiver Control Software . Usable with a variety of equipment. I was able to communicate with a WJ-9546 demodulator using this program. MCS - Miniceptor Control Software . Originally written for the WJ-8607 , WJ-8607A and WJ-8609 , I've been told it works with other WJ digital receivers like the Microceptor . Zip files of this software are now available for download from the WJ & CEI Document Index page June 27, 2020 - Six additional manual appendices for the WJ-8607A Miniceptor receivers . Appendix D - Amplified 21.4 MHz IF Out & 10 MHz Reference Oscillator options. Appendix E - Digital Scan Output option. Appendix I - MCS-1 Miniceptor Control Software v 5.0 (covers WJ-860x , WJ-8809 , WJ-8654 & WJ-8700 ). Appendix J - HPIL Interface option. Appendix K - Calibration option (covers WJ-860x series). Appendix L - 3GFE Frequency Exrtender options (covers WJ-860x series). These are now available for download from the WJ & CEI Document Index page June 26, 2020 - A reader inquiry brought the dearth of spectrum display manuals to my attention. The wonderful 3" x 1" CEI and WJ spectrum displays were awesome in the days before SDR radios. Three manuals have been added. The SM-8421 , which was designed as companions for the 357 receivers and DMS-105 demodulators with their 2 MHz IFs. The SM-8510 & SM-8511 , designed for use with the Collins 51S-1 , and R-388 series with their 500 MHz IFs. And the SM-8512 & SM-8513 , designed for use with the Collins R-390 series and other radios using a 455 kHz IF. These are now available for download from the WJ & CEI Document Index page February 11, 2020 - The AN/PRD-11 was a manpack DF set made by Watkins-Johnson and produced in significant numbers. It consisted primarily of the WJ-8640 receiver, WJ-8975 DF processor, WJ-9180 spectrum display and the WJ-9880 antenna. The TM-11-5825-278-12-2 manual for the AN/PRD-11 system is available from the WJ & CEI Document Index page . A separate manual for the WJ-8640 aka R-2220 p/o GRR-8) is also available from the WJ & CEI Document Index page January 14, 2020 - An internal development document, Pre-Production Test Procedures for the WJ-8618 h...