Running MSK441 on 6m as a rx-only reverse beacon I would every week or so
decode a call from places as far as Albania, not making much sense as my lousy
moxon wasn't even up 20ft here (not even above roof level) down in the
Willamette Valley in SW Washington state. Normally I'd be lucky to decode MSK
from Vancouver Island BC.
Lots of gibberish was also decoded over the few months I let it run.
Did you switch back on FT8 from NA Contest Mode when the contest was over?
Greg, K3RW
Get Outlook for Android<https://aka.ms/ghei36>
________________________________
From: VHFcontesting
<vhfcontesting-bounces+greg_winters=hotmail.com@contesting.com> on behalf of
Alexander Svirsky <as@shawsheen.com>
Sent: Monday, January 20, 2020 10:09:30 AM
To: vhfcontesting@contesting.com <vhfcontesting@contesting.com>
Subject: Re: [VHFcontesting] Weird ft8 contact on 2M. Did anyone else see it?
Paul, I'm sure you're talking about a weird FT8 reception and not a 2-way QSO.
I have also seen something like this happen. Last summer when I left
the radio and the computer on overnight after a contest I apparently
received one side of a QSO attempt in the South Pacific, on 432 IIRC.
I have no explanation for this.
My WSJT-X installation on Linux apparently by default saves a sound
recording of every 15-second window, and it saves a log of all
messages received and sent. I have set aside the sound samples and log
entries of that reception.
Perhaps you also have the sound samples and original log entries for
your reception. Check you WSTJ-X folders to see if you have them. I'm
not sure how to recreate them easily as WSJT-X "playbacks" to see what
really happened. I've thought about dedicating a computer and radio to
just logging VHF FT8 freqs for crazy receptions like this, but I'm
sure the sound files would eat up disk space quickly.
I don't think we're seeing a software issue. The message wasn't random
and the grid square and the calls received make sense. I suspect that
VHF freqs sometimes bounce and propagate in unexpected ways and the
FT8 algorithm may be sufficient to decode a mouse fart on the other
side of the planet.
Alexander N1PRW
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