[R-390] Matching transmitter?

[Cecil]

This brings up another subject that I have often wondered about....

What might anyone know about radio sites that were scattered around the country in places like farmers fields where the farmer was paid for the use of his land.  A small shelter was built and radio gear installed.  Used for a number of years and then abandoned.  The checks quit coming to the farmer who never knew what the facility was being used for and never really notified of the site being returned to him for his farming use.  The sites fall into disrepair and at some point a look inside reveals a couple pairs of R-390a's and a couple of T-368s.  I knew of the existence of one of these sites in the SE US and would be interested in knowing what the were used for and potentially how many of them existed and where.  The equipment appears to have been abandoned in place.

Cecil
K5DL

Sent from my iPad

On Jan 1, 2013, at 10:30 AM, Nick England <navy.radio at gmail.com> wrote:

> The R-390/URR and 390/URRA were general purpose HF receivers. Military
> installations sometimes had transmitters located 20 miles from the
> receivers to avoid interference. (the 40kw AN/FRT-40 was a medium size
> transmitter)
> Shipboard the R-390A's and other receivers were in one compartment
> (radio central) and transmitters were in another. The transmitters
> could be anything from 1930's CW rigs (TBK, TBL) to 1950's AM/FSK rigs
> (AN/SRT-14) to 1960's synthesized 1kw SSB xmtrs for RTTY (AN/WRT-2).
> And an intercept site would have a hundred receivers and no transmitters at all.
> So there was no really such concept as a "matching" transmitter.
> 
> HOWEVER, the standard AN/GRC-26D communications shelter was more like
> a ham shack - receivers, transmitter, and RTTY gear. Consisted of two
> R-390's and a T-368. This combo was probably relicated for many small
> comm sites. The T-368 is thus an excellent "matching transmitter"
> choice.
> http://www.rattrig.com/AN-GRC-26/26.htm
> 
> Now if you mean matching as in "made by Collins, looks somewhat like
> an R-390(), PTO controlled, etc." then there was an oddball prototype
> SSB exciter that used an R-390 as part of the freq synthesizer.
> T-???/URT George Rancourt wrote an article in Electric Radio about it
> - I think only one example is in existence.
> 
> DISCLAIMER - I've probably overlooked something completely obvious and
> my only excuse is that the New Year's party ended at 0230 this AM and
> I did my part to make sure there wasn't any leftover champagne.....
> 
> Cheers,
> Nick K4NYW
> 
> On Tue, Jan 1, 2013 at 10:08 AM, Robert Newberry <N1XBM at amsat.org> wrote:
>> Was there ever an official matching transmitter to the R-390? Best I can
>> tell from startpage searches is no. Although some people seem to like T-368
>> as a choice.
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