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Author Topic: UNID Digital Burst, Multi-Mode, 3311 kHz USB, 01:40 UTC, Jan. 28 2021  (Read 1400 times)

Offline sky_listener

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UNID Digital Burst, Multi-Mode, 3311 kHz USB, 01:40 UTC, Jan. 28 2021
« on: January 28, 2021, 1614 UTC »
I heard this mode on 3311 kHz USB, 01:40 UTC, Jan. 28 2021. My location is East Coast US. It seemed to use multiple different modes including MFSK, and it was heard several times during a net (primarily USB voice) whose callsigns sounded like Navy MARS. It sounded as if they were testing equipment, so could this mode be new?

A link to a sound file is attached. Thanks for the help!

https://drive.google.com/file/d/1N_0eqJp7IcI-knOdowAvQsLU12MJOBrV/view
« Last Edit: January 28, 2021, 2102 UTC by sky_listener »
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