[GreenKeys] Greenkeys Folks: RTTY Just Above 4 MC?

[Charles Ring]

On 9/30/2014 0838, David Stinson wrote:
> Hello Greenkeys folks.  For years and in many places over the country, 
> I've heard a strong RTTY signal just above 4 MC.  It's there every 
> night I've listened for it.  Does anyone know who/what?
> TNX Dave AB5S
>

Encrypted military, apparently unchanged for 45+ years,  that's just how 
long since I first noticed it. To me the interesting thing is that it is 
using the same characteristics for so many years while comm technology 
has changed so much. It has been mentioned here recently.

-- 
*Charles Ring W3NU*
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