What was the purpose of the R-390A radio receiver?
History The R-390A military shortwave radio receiver was the result of a project undertaken by the U.S. 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.
What was the purpose of the Collins R-390A?
The R-390A /URR is a general coverage HF radio communications receiver designed by Collins Radio Company for the US military. The R-390A military shortwave radio receiver was the result of a project undertaken by the U.S. Army Signal Corps in 1954 to replace the existing R-390 receiver then in use.
Who are the makers of the R-390A?
R-390A/URR Mil Re MILITARY U.S. different makers for same model, build 1954–1985, 45 pictures, 10 schematics, 24 tubes, United States of America Home Forum Papers Market Tubes + Tr Sounds
Is the R-390A still in use on submarines?
There are reports, possibly apocryphal, that R-390A receivers are still in use aboard U.S. Navy submarines since the receiver can withstand the strong radio frequency fields found aboard ship.
What kind of radio receiver is R-390A?
The R-390A is a general coverage radio receiver capable of receiving amplitude modulated, code, and frequency shift keying signals.
The R-390A /URR is a general coverage HF radio communications receiver designed by Collins Radio Company for the US military. The R-390A military shortwave radio receiver was the result of a project undertaken by the U.S. Army Signal Corps in 1954 to replace the existing R-390 receiver then in use.
There are reports, possibly apocryphal, that R-390A receivers are still in use aboard U.S. Navy submarines since the receiver can withstand the strong radio frequency fields found aboard ship.
When was the last update to the R-390A?
The R-390A was deployed to most branches of the US military and remained in general use through the 1980s. The last major update to its documentation was in 1984. As the military procured newer receivers, many R-390As were released to surplus while others were destroyed.
