While watching the digital freq at 1600 UTC on 11 August 2009 I noticed another signal very close in frequncy. In fact, if the digital signal shifted up instead of down as it has most often been seen it might be on this new freq.

Looking at the new signal I realized it was a FAX transmission with a rotation of 120 Hz and a shift of about 850. This was interesting as one of the original thoughts (and still something to consider) is that the digital signal I have been watching might be a FAX station idling, or possibly one coming on line and participating in test, non FAX, transissions.

Regardless, this FAX signal was up concurrent to the digital signal for a while but the digital signal eventually dropped and I was able to capture the above FAX.

If this signal had a center of 1900 Hz the channel would have been 13879 kHz. 120Hz, 576 index, and 850 Hz shift.