[GreenKeys] ID Unknown TU

[Jeffrey D Angus]

On 12/18/2016 7:09 AM, Jack wrote:
> Navy AN/SGC1.  Basic RTTY converter, two low tones.
> Jack. K2TTY
<http://www.virhistory.com/navy/rtty/sgc1/sgc1a-op.pdf>


-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com

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