Unknown Four Waveform Transmission 8992 USB 2-1-2016 1546 UTC

C

Have chased this unknown 4 different digital signal transmissions for quite some time now. Transmitted on 8992 kHz USB at apparently random intervals. The voice traffic heard towards end of the recording is the French Air Force and does not appear to have anything to do with this transmission.. #Unknown #8992kHz

Feb 01, 2016, 03:56 PM
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<user-5006573> - about 1 month ago

Hilarious

fires911

fires911 - 5 months ago

Hi Guys,
Listening on 8992khz USB today (April14th 2017 - UK) heard this waveform signal starting with high note pitch gradually coming down in pitch .Signal strength in UK was 5/9