[Milsurplus] Curiousity...

[Bob Wilder]

Do not forget  USAFSS who had a bunch of the R-390's all around the world 
for use with their TRD-4's and TRD-15's




At 04:28 PM 6/28/2002, aGEnuine ham wrote:
>On Thu, 27 Jun 2002 23:02:35 -0700 "Kenneth G. Gordon" <keng@moscow.com>
>writes:
> > Can anyone in the group explain why the SRR-11/12/13 and the
> > FRR equivalents were never used as much when compared with
> > the R389/390 series?
> >
> > I was under the impression that they were pretty good receivers
> > overall.
> >
> > Ken W7EKB
>
>Ken:
>
>Most of the commenters have missed the real reason for the differences in
>procured quantities of the different equipment.  The SRR/FRR radios were
>'tactical' radios assigned to military units.  The R-390 and to some
>extent the SP-600 were designed for NSA, and if you have ever seen the
>inside of a signal collection site, there are hundreds of receivers in
>operation at one time.  Multiply that by the number of sites we had in
>operation at the height of the cold war, and you are talking serious
>quantities.  The military services shirt-tailed on to later orders for
>the R-390, for various purposes of their own.  Now, on the other hand,
>military comm sites would have a half dozen to a dozen circuits running,
>and an equivalent number of receivers (and remote transmitters).  To put
>it in numerical perspective, the number of military units with radios is
>relatively small compared to the equipment compliment of one collection
>site.  You will observe there is no plethora of any kind of transmitter
>as compared to the quantities of R-390 and SP-600 receivers.  I hope
>someday some of the site pictures are declassified, because if you have
>never seen a loooong wall of receivers, almost as far as the eye can see,
>all running, meters wiggling, (some of the freequency displays covered
>with tape!), it is IMPRESSIVE.  Also the reason there were no real
>speaker outputs on those receivers, as they drove 600 ohm lines into tape
>recorders and TTY decoders among other things we won't mention.
>
>73,
>George
>W5VPQ
>
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Bob Wilder, AF2HD/AFA2HD
6032 Idlemoore Court
Theodore, AL 36582-4036
251-653-5274
http://home.earthlink.net/~bwild
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