Collins 207B-1 Transmitter

The 207B-1 was capable of 35 kilowatts of RF output in amplitude modulation mode, and 50 kilowatts in continuous wave mode. The transmitter was designed for land-based operation within the frequencies of 4 to 26 MHz and was contained within five sheet metal cabinets bolted together to form a single unit with a weight of 16,800 pounds. Intended primarily for high speed telegraphy and broadcasting, the 207B-1 was capable of high power AM transmission and telegraphic or frequency-shift keying at speeds greater than 400 words per minute. It could also be used to amplify the power output of a single-sideband modulation transmitter to a peak envelope power of 30 kilowatts.Maes, Ludo. TDP COLLINS 207B-1 GENERAL DESCRIPTION. TDP. 2010-06-04. URL:http://www.transmitter.be/col-207b1.html. Accessed: 2010-06-04. (Archived by WebCite at https://www.webcitation.org/5qEpTCJ1b?url={{Dead link|date=December 2023 |bot=InternetArchiveBot |fix-attempted=yes }})Unclassified publications of Lincoln Laboratory, 1951

In April 1951 the United States Coast Guard Cutter USCGC Courier was equipped with two 207B-1 transmitters during its time as a ship-borne radio relay station to transmit Voice of America programs behind the Iron Curtain.U.S. Coast Guard Cutter Courier. United States Coast Guard. 2010-06-04. URL:http://www.uscg.mil/history/webcutters/Courier_WAGR410_Photos.asp. Accessed: 2010-06-04. (Archived by WebCite at){{cite web|url=http://www.modestoradiomuseum.org/voa%20courier.html|title=Voice of America Broadcasts From Coast Guard Cutter|publisher=Modesto Radio Museum|accessdate=16 November 2010|archive-url=https://web.archive.org/web/20190803164807/http://www.modestoradiomuseum.org/voa%20courier.html|archive-date=3 August 2019|url-status=dead}}

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Category:Models of radios

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