[ARC5] NIB Navy AN/ABA-1

WA5CAB at cs.com WA5CAB at cs.com
Tue Apr 10 11:20:36 EDT 2007


It's ABA-1, rather than AN/ABA-1.  But it is the Navy version of the SCR-515, 
which is the Mark IV IFF system which was held in reserve during WW-II in 
case the Mark III was ever compromised.  Apparently that didn't happen so most of 
the radios and dynamotor/encoderss that turn up are unused.

In a message dated 4/10/2007 7:14:53 AM Central Standard Time, 
roy.morgan at nist.gov writes: 
> I had no idea what that was, so I looked it up at:
> 
> Military Commo Equipment List
> http://www.fernblatt.net/
> 
> Where I find the short description:
> "Transponder, Identification friend or foe, Airborne, 470 MHz, 5 W. "
> 
> It looks as if it uses Loctal tubes and the output tube is one of those 
> round glass triodes or tetrodes made back then.
> 

Robert Downs - Houston
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