[CQ-Contest] Fwd: 20m Intruder

[donovanf at starpower.net]

Courtney, 


The intruder went permanently QRT at 1546Z yesterday 


73 
Frank 
W3LPL 

----- Original Message -----

From: "Courtney Judd" <k4wi at k4wi.net> 
To: cq-contest at contesting.com 
Sent: Saturday, February 2, 2019 9:57:12 PM 
Subject: [CQ-Contest] Fwd: 20m Intruder 

yesterday morning it was strong S-9 plus toward 40 deg from west central 
Alabama. I could copy it from 13998.3 to 1403.6 and then it dis-appeared 
and hasn't been back since. Hard to tell! 73's Cort K4WI 

> *From:* Ben Antanaitis - WB2RHM <wb2rhm at wb2rhm.com> 
> *Date:* Saturday, February 02, 2019 10:36 AM 
> *To:* cq-contest at contesting.com 
> *Subject:* [CQ-Contest] 20m Intruder 
> All, 
> 
> I sent a question about the 'bogey' signal over to some of the 
> 'numbers stations', SDR signal analysis, Mil-Comms monitoring type of 
> groups, yesterday. 
> 
> I got a reply from one of the groups. That group looked at the signal, 
> and recorded it for 'examination, identification, & decoding' 
> attempts. The result that came back from them said that this 
> signal appeared to be 'a known Canadian Navy signal type and was in 
> STANAG 4285 and appears like Thales 3000 modems' No way to tell if 
> this was a stationary transmitter or a 'mobile' (water or air). 
> 
> https://www.rtl-sdr.com/stanag-4285-decoding-with-rtl-sdr/ 
> 
> If mobile, that might be why it might have been in different seeming 
> locations. Speculation was also it might have been on a patrol 
> routing between NA and Greenland air space. 
> 
> 73, Ben - wb2rhm 
> 
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