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John KC0G · 24th Apr 2019, 2:58 pm

The GE YRS-1 was the commercial adapation of the single-sideband adapter which was published by Don Norgaard in QST, July 1948. See pages V-35 to V-40 of the GE Sideband Handbook at http://the-eye.eu/public/Books/Elect..._1961_text.pdf

While on the subject of sideband convertors. there were a number made here in the USA in the 1950's. See http://www.navy-radio.com/rcvr-ssb.htm Perhaps some of these convertors were commercial designs which were adopted by the US military. Some, probably not all, offered ISB capability. Several were made by TMC (Technical Materiel Corporation). You may find further information at http://www.tmchistory.org/

See also the HF Diversity Receiving Systems page at the same site. Some systems effectively had ISB capability. See also the the HF & MF receiver page, and the link to the R-1051 page. My understanding is that the R-1051 was built for the US Navy. It had ISB capability. It was also incredibly expensive. The early General Dynamics versions reportedly cost over the $20,000, and the last Stewart-Warner version around $50,000.

73 John

24th Apr 2019, 2:58 pm	#82
John KC0G Hexode Join Date: Mar 2009 Location: Minneapolis, Minnesota, USA. Posts: 278	Re: ISB Receivers The GE YRS-1 was the commercial adapation of the single-sideband adapter which was published by Don Norgaard in QST, July 1948. See pages V-35 to V-40 of the GE Sideband Handbook at http://the-eye.eu/public/Books/Elect..._1961_text.pdf While on the subject of sideband convertors. there were a number made here in the USA in the 1950's. See http://www.navy-radio.com/rcvr-ssb.htm Perhaps some of these convertors were commercial designs which were adopted by the US military. Some, probably not all, offered ISB capability. Several were made by TMC (Technical Materiel Corporation). You may find further information at http://www.tmchistory.org/ See also the HF Diversity Receiving Systems page at the same site. Some systems effectively had ISB capability. See also the the HF & MF receiver page, and the link to the R-1051 page. My understanding is that the R-1051 was built for the US Navy. It had ISB capability. It was also incredibly expensive. The early General Dynamics versions reportedly cost over the $20,000, and the last Stewart-Warner version around $50,000. 73 John Last edited by John KC0G; 24th Apr 2019 at 3:13 pm. Reason: correction