[Elecraft] Horrible signal on 10130

Fred Jensen k6dgw at foothill.net
Tue Sep 20 12:31:39 EDT 2011


It's been there, 24/7 it seems, since we first got 30m.  I think it's 
one of the primary users we are supposed to avoid QRM to.  850 Hz shift, 
decodes just fine in MixW and MMTTY to continuous random characters 
which would be characteristic of most of the not-so-new TTY encryption 
devices.  It's pretty strong daytime here on the western frontier.  It's 
at most, about 2 KHz wide, which would be about right for 850 Hz shift 
RTTY.  I haven't heard anything else around it, but I'll listen around 
0400Z tonight.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org

On 9/19/2011 10:00 PM, Bob Cunnings wrote:
> I've been hearing (and seeing on the P3) an 850 Hz shift RTTY signal
> on 10.130 MHz for years now, virtually every evening.  I use it as a
> propagation indicator on 30m, when it's strong I can work into the
> eastern US from here (NM) easily. I've read that it is an encrypted
> transmission of the US Navy, possibly from the Cutler ME NCS.


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