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The R-390A military shortwave radio receiver was the result of a project undertaken by the United States Army Signal Corps in 1954 to replace the existing R-390 receiver then in use. The R-390 had done its job so well that the Corps decided continued use of this type of receiver necessitated an improved, reduced-cost version.
This is a list of rack-mount or tabletop communications receivers that include short wave frequencies. This list does not include handheld, portable or consumer grade equipment. Those that include VHF or UHF can be termed wideband receivers, whereas those without HF would be termed scanners, or surveillance receivers.
The Collins mechanical filter was introduced to consumers in the 75A-3, and the 75A-4 was one of the first receivers marketed specifically as a single sideband receiver. Collins R-390A radio receiver. Around 1950, Collins began designing the R-390 (500 kHz — 30 MHz) for the US military. This was intended to be a receiver of the highest ...
Modern communications receiver, ICOM RC-9500 Communications receiver or shortwave receiver - a general purpose audio receiver covering the LF, MF, shortwave , and VHF bands. Used mostly with a separate shortwave transmitter for two-way voice communication in communication stations, amateur radio stations, and for shortwave listening.
A communications receiver is a type of radio receiver used as a component of a radio communication link. This is in contrast to a broadcast receiver which is used to receive radio broadcasts. A communication receiver receives parts of the radio spectrum not used for broadcasting, including amateur, military, aircraft, marine, and other bands.
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Midway through the 4-Line's run, in 1967, Drake introduced a receiver and transmitter pair meant for the Novice licensee - the 2-C receiver and 2-NT transmitter. The 2-C was an improved receiver based on the 2-B design using a few more solid state devices. Thus, it was a sophisticated design compared to most other receivers targeting Novices.
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