[Milsurplus] CRV... / SCR-575

Fri, 23 May 2003 15:13:30 EDT

Marty & Group,

SCR-522 with the RA-62 AC supply is know as SCR-624.

USAAF VHF Fighter Control systems (including DF and SCR-575 (part of Net 
Control System SCS-3) among dozens of others) are all covered in Volume 2 of the 
Wright Field series that started with Airborne Radio Equipment Handbook.  The 
one on the VHF ground sets is "VHF Fighter Control Handbook".  The radios 
themselves are all BC-639's, BC-640's and SCR-624's (or SCR-522's in one or two of 
the Mobile DF stations).  Like the first volume, the handbook is an overview, 
with photos and equipment lists but no schematics or maintenance info.  Both 
are available.  BTW, if you check the parts list for SCR-575, you will see that 
although the BC-639's are AC operated, the RC-165 (BC-624 and BC-625) were 
operated from a PE-94.  Dunno why, unless they needed to be used when the 
SCR-575 was being relocated (i.e., moving).  The handbook covers the equipment 
fairly well but is pretty slim on employment.

As an aside, SCR-624 was also used in some Fleet type submarines as a 
replacement for AN/ARC-4.

In a message dated 5/23/2003 1:14:27 PM Central Daylight Time, 
[email protected] writes: 
Re: [Milsurplus] CRV... / SCR-575

Clete I just read about a SCR-575 for 1st time

Looks like SCR522, 110 supply, &BC639.  Latter, I bet, with a VHF Adcock 
antenna for DF, former for 2-way.

Didn't know that was airfield backbone for DF-ing 'til now

Robert & Susan Downs
Houston
<[email protected]>

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