#Rockwell collins vlf receiver series#
You find the Collins mechanical filters 16/8/4/2/1/0,1 kHz only in this popular variant - it has been produced by a series of other companies under contract.įor civilian use, Collins had a range of smaller lightweight amateur band receivers, the legendary Collins 51S-1 covering the complete shortwave spectrum from 200 kHz - 30 MHz in 1 MHz segments offered a linear analog dial with a dial resolution of better than 500 Hz and was fully equipped with tubes.Ĭollins was taken over by Rockwell Intl. ROCKWELL-COLLINS HF-2050 DSP HAM COMMUNICATIONS RECEIVER, 14kHz-30MHz, TESTED Item No : 232722137393 Condition : Used Category : Consumer Electronics > Radio. It's military successor was the 1951 model Collins R-390/URR with it's mechanical digital frequency display (frequency readout on a kind of odometer), and the later Collins R-390A/URR, which gives nearly unsurpassed AM reception on the tropical bands with. The Collins 51J-3 (and it's military variant Collins R-388/URR) was equipped with coil filters, the Collins 51J-4 (military variant R-388A) was the first Collins set using their very famous mechanical filters, it appeared on the market in 1957. in Richardson, Texas, are starting full-scale development of a very low frequency (VLF) radio for the U.S. Remote Control a RS-232C/MIL-STD-188C computer interface was available to support the Collins 514S-1 Remote Control Unit or other computer-based systems. This was a small board attached to the shielded RF module. These sets startiung with the 51J / 51-J with linear analog dials covering the shortwave spectrum in 30 1-MHz-segments were very successful. Communications experts at Rockwell Collins Inc. VLF - an option to extend the frequency range down to 12kHz, perhaps to monitor submarine fleet encrypted RTTY signals. This experience was used in the production of amateur radio receivers (the famous 75-A series) after the war.Īfter 1949, Collins brought out communication receivers covering not only the ham bands but the complete shortwave spectrum. The company started business constructing transmitters and amateur radio equipment and got much experience producing aeronautical transceivers and transmitters during wartime.
The Collins Radio Company was founded by Arthur Collins in Cedar Rapids in 1932.
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