Watkins - Johnson Commercial Receivers
The Watkins-Johnson Company was founded in 1957 in Palo Alto, CA; renamed to Watkins-Johnson Company Telecommunications Group in Gaithersburg, MA, it manufactured communications equipment primarily for military and intelligence agencies after 1966, and at last employed 450 people.
Probably after 1998, Watkins-Johnson was acquired by Marconi and then by BAE SYSTEMS North America (British Aerospace). The Gaithersburg facility was acquired by Integrated Defense Technologies IDT in 2002 for US$146 million, which was later was acquired by DRS Technologies Inc. in November 2003 (DRS Electronic Systems, Inc., 200 Professional Drive, Gaithersburg, MD 20879).
With the HF-1000, Watkins-Johnson produced a single DSP receiver after 1993, targeting radio amateurs and shortwave enthousiasts.
Commercial receivers from Watkins Johnson
|RS-160||1970||Single Conversion||30 - 1000 MHz||AM, FM, Pulse|
|WJ-8888 / „Quad8“||1972||Triple Conversion||0.5 - 30 MHz||AM, CW, USB, LSB, ISB, FM|
|WJ-8888B||1976||Triple Conversion||0.5 - 30 MHz||identical technical specifications, 4 tuning speeds|
|WJ-8718||1976||Double Conversion||5 - 30000 kHz||AM, CW, FM|
|WJ-8718A||1982||Double Conversion||5 - 30000 kHz||AM, CW, FM|
|WJ-8718A/MFP||1986||Double Conversion||5 - 30000 kHz||identical technical specifications, microprocessor controlled|
|WJ-8711 / WJ-8711A||1990||Double Conversion||5 - 30000 kHz||AM, CW, LSB, USB, ISB, FM; DSP IF, AGCx2, RS 232 - Port|
|HF-1000||1993||Double Conversion||5 - 30000 kHz||AM, CW, LSB, USB, ISB, FM; DSP IF, AGCx2, RS 232 - port; semi-professional successor model.|