[Milsurplus] RAX nix surveillance

[WA5CAB at cs.com]

That's possible.  At least some of the contract dates sorta match up.  RAT, 
RAT-1, RU-11, RU-12, GO-5 and GO-6 are all 1939.  However, RAV is 1940, 
same year the GO-8 and GO-9 first came out.  And the Notes column for GO-4, 5 & 
6 just says RU Series.

In a message dated 10/30/2010 1:26:49 PM Central Daylight Time, 
kk5f at earthlink.net writes: 
> >All ten GO models covered 300-600 KC.  GO covered 4000-13575 KC (the 
> 4000 
> >may be a typo, but as it was the only model made by CHS it may be 
> correct).  
> >GO-1 thru GO-3 covered 3000-13575 KC.  GO-4 thru GO-6 covered 3000-26500 
> KC. 
> 
> Now that's very interesting.  I'm glad Hue raised the question.  I had no 
> idea
> that some mid-1930s USN aircraft transmitters were designed for 
> frequencies
> approaching 27 MC.  I wonder how that worked out.
> 
> That throws new light on the RAV and RAX intended use discussions.  It
> suggests that the 27 MC specification for the Rat, RAV and RAX could be
> related to these transmitters.  Most RU sets used as companion to the
> GO- and GP-series ended coverage at the 13575 KC quoted above.  Perhaps
> the RAT was simply intended to fill the gap between where RU coverage
> ends and where GO-4 to -6 transmitter coverage ends, IAW for liason
> set use?  Were that true, the RAV may have been proposed as a liason 
> receiver replacing the RU and the RAT to provide full coverage with
> the GO-4 to -6 transmitters.
> 
> So, there are interesting arguments to be made for the RAT, RAV, and RAX
> to have been intended for either liason receiver service OR surveillance
> receiver service.  I'm leaning toward the former, based on the information
> that Robert supplied.
> 

Robert & Susan Downs - Houston
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