[GreenKeys] FRF FSK conv. (was - Two eBay Novelties)

[Duncan Brown]

Dave,

The "dual channel" is dual 455KC inputs from two receivers for diversity 
operation.

Were the NSA DFSK converters you rescued the AFSAV 133 (aka AN/FRA-86) 
units?  We were still using them at Ft. Bragg in 1970.

Duncan, K2OEQ
USASA 31J30

On 09-Feb-14 19:16, David Burns wrote:
> The specifications at "jptronics" specifically mention "dual-channel" 
> operation.  Knobs on the front of the equipment are labeled "Channel 
> A" and "Channel B".  The date on the jptronics specification is 1952.  
> Obviously, the 'cold-war' is underway. The Russians had dual channel 
> equipment in widespread use starting in the 50's (I dragged NSA 
> equipment designed to intercept it out of the NSA's dump at Ft. Meade 
> in the late 60's).  The FRF would have been equivalent to the Russian 
> equipment.
>
> I've been in communication with the seller.  They have multiple 
> "pallets of surplus gov. equipment" dating from the 1940's "in the 
> back of the warehouse".  Could be anything, as they've been in 
> business for 72 years.
>
> More to come..
>
> -Dave in Boston
>
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