Collins 207B-1 Transmitter
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Manufactured by Collins Radio Company in 1951,[1] the Collins 207B-1 transmitter was a 35 kilowatt amplitude modulated or a 50 kilowatt CW transmitter designed for land-based operation within the frequencies of 4 to 26 megacycles. The 207B-1 was contained within five sheet metal cabinets which were bolted together to form a single unit with a weight of16,800 pounds. The 207B-1 was intended primarily for high speed telegraphic communication and broadcasting. The 207B-1 was capable of high power AM transmission and telegraphic on-off or frequency-shift keying at speeds greater than 400 words per minute and amplifying the power output of a single side band transmitter to a peak envelope power of 30 kilowatts.[2]
Usage
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.
References
- ^ Unclassified publications of Lincoln Laboratory, 1951
- ^ 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 http://www.webcitation.org/5qEpTCJ1b)
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