[R-390] R-390 and CV-157 timeframe

[rbethman]

The Nike sites had the radios on ALL THE TIME.  They were used infrequently.

Normally they were ONLY used for ground to air and air to ground comms. 
  Either during a training exercise with live aircraft - OR - during a 
SAC RBS, (Radar Bomb Scoring), run.

SAC Also had RBS train cars.

Active crews would make bombing runs on a specific target.  These were 
tracked from the IP, (initial point, through BRL, (bomb release 
line)[tone initiation], followed by calculations by computer including 
upper winds data, to indicate point of impact.  Scores were transmitted 
via encrypted open channel voice.  (The data was converted from the 
results to 5 char groups.)

Results were ALSO mailed certified to the appropriate HQ WITH pen 
tracings from one of the firing batteries.

I NEVER knew what type of radio it was - NOR - where within the site it 
was located.

Bob - N0DGN

Roy Morgan wrote:
> 
> On May 20, 2008, at 9:03 AM, Sheldon Daitch wrote:
>> The CV-157 has an AFC circuit,
> 
> I seem to remember someone who WAS there telling that the CV-157 came 
> out after the R-390/URR but before the R-390A/URR. It was used in a 
> diversity setup with two R-390/URR radios.
> 
>> someone in systems design recognized a need for the AFC
>> circuit in the CV-157.
> 
> I would guess that use of multi-channel, independent sideband RTTY 
> broadcasts came after the R-390A was in use and available.
> 
> The R-1051 and that monster National receiver with two cabinets joined 
> above one another were designed with the needed stability built in.
> 
> Also, Nike missile sites were equipped with transmitters (and presumably 
> receivers) fed from a then state of the art master oscillator, known as 
> The Sulzer frequency standard.  I'd guess that the Nike sites were 
> silent, and maybe the central control stations were also, and they 
> needed the transmitters and receivers to come up ON frequency, without 
> doubt or any pre-broadcast frequency checks or tune-up periods.
> 
> Roy
> 
> 
> Roy Morgan
> k1lky at earthlink.net
> Lovettsville, VA 20180
> 
> 
> 
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