[GreenKeys] Random memory about surplus TTY equipment

[Bob McConnell]

David I. Emery wrote:
> On Tue, Oct 14, 2008 at 11:11:58PM -0400, Bob McConnell wrote:
>> I don't know about the shore based units. But the AN/UCC-1 multi-channel 
>> RTTY demultiplexor we had aboard ship may have been its replacement. 
>> There were 16 channels available, 75 Hz shift with 75 Hz between the 
>> upper freq on one channel and the lower freq on the next. The bottom 
>> channel started somewhere just above 300 Hz.
> 
> 	Not to be nit-picky, but most all of the US signals I was familiar
> with (including Navy) were nominally 85 hz shift and 170 hz spacing between
> the pairs of tones.

85 Hz is what the documents show at 
<http://www.tpub.com/content/istts/14225/css/14225_19.htm>. I would 
believe them before I trusted my memory. 30 years is too long to recall 
that much technical detail accurately.

Bob McConnell
N2SPP