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Shortwave Data Decoding - Discussions regarding decoding digital signals on the HF bands, including HFDL, ALE, RTTY, CW, and others.

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Old 05-05-2017, 11:00 PM
Join Date: Apr 2017
Posts: 15
Question Unid Digi 6.960 ID?

Heard in Seattle, WA USA at 2:45utc on 05/06/2017 Unid digi mode (to me) Sample at

Couldn't find a match on any samples sites.

When first tuned it sounded like it was in idle mode or preamble then after a few minutes went into traffic ie the duration and repetitive nature changed to longer bursts and less uniform.
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Old 05-06-2017, 8:46 AM
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Logs on the UDXF suggest that this might be Russian hams working out of band, although the mode doesn't sound familiar. I am told they often do this to discuss political issues, something their licenses don't allow them to do, to get away (to a certain extent) from prying ears...but this is just a maybe...Mike
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Old 05-06-2017, 9:45 AM
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