[Milsurplus] Radio Identification

[WA5CAB@cs.com]

Norman, Mike, Mac, et al,

I think Mike is correct, although I haven't pinned down the AN/MRC-xx number. 
 The '64 edition of TM 11-487 stops just short of the sets using the 618T, 
AN/ARC-51(*), etc. and although I think I have a later equivalent somewhere, it 
isn't in the bookshelves in the den.

The 618T's run AM/CW/SSB and I think in some variants ISB and replaced the 
618S-1 and -4 (AN/ARC-38).  In any case, they do LSB and USB.  The mechanical 
filters used are the same as in the AN/ARC-58 (618S) and AN/PRC-47, and are one 
source of the USB filters to convert PRC-47's for LSB operation (the 
RT-671/PRC-47 actually contains an LSB filter but runs USB because of the conversion 
scheme).  Fair has 618T-2 and 618T-3 listed in their current catalog.  AN/ARC-58 
and AN/TRC-75 also use the same filters, but are not transceivers (so they 
have four filters).

In a message dated 8/15/2003 4:34:02 PM Central Daylight Time, 
mamorrow@tva.gov writes: 
> It sounds to me with everything you have that you've got most 
> of one of those AN/MRC-?? communication systems used for mobile
> control towers in the 1960s.
> 
> You've got some neat 1960s-era stuff to play with!

Robert Downs - Houston
<http://www.wa5cab.com>
<wa5cab@cs.com>


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