[Milsurplus] SRR-13 question

[howard holden]

Nice time-line Nick.

I served at two Navy shore stations in the late 60's-1970, NAW Guantanmo Bay and NGR Nea Makri Greece.

Gitmo had mostly R-390A's, two FRR-60's. No R-1051's, and only one FRR-59, which had not yet seen service at the time I left there early 1968. I did get a chance to play with the '59 and was not overly impressed for its complexity. The FRR-60 seemed a whole lot better and less fussy.

Greece had a ton of R-390A's, a few R-1051's and no FRR-59's or FRR-60's. Left there April 1970.

At both stations R-390A's were the main receivers, used extensively in multichannel  time division multiplex ISB work, as well as CW and single channel TTY. 

Didn't see a single SRR at either station, but did see them in RM school in Bainbridge early 67.

A good op could keep and R-390A "on channel" in multichannel use once he learned to get the right mux tones zeroed. Typically they did not require a whole lot of adjustment if they were in a temperature-stable environment.

Howie WB2AWQ
  ----- Original Message ----- 
  From: Nick England<mailto:navy.radio at gmail.com> 
  To: 'Ray Fantini'<mailto:RAFANTINI at salisbury.edu> ; milsurplus at mailman.qth.net<mailto:milsurplus at mailman.qth.net> 
  Sent: Friday, November 20, 2009 11:04 AM
  Subject: Re: [Milsurplus] SRR-13 question


  Here's the major Navy receiver development timeline as I understand it -
  installations varied all over the place of course with RBB's still found on
  some ships into the 1970's. The Navy's primary emphasis post-war was on RTTY
  message handling, first with 850cps shift single channel, then later 8-16
  channel tone packs with 85cps shift, requiring high stability (spec for
  WRR-2, FRR-60, etc. was 0.1 cps at 10 mc).
  Nick
  www.navy-radio.com<http://www.navy-radio.com/>