Uwe wrote:
> Carrier on: 2016-01-09 17:00:00
> Message start: 2016-01-09 17:05:00
> Coding 8K19A
> Duration 02:37:52:00
> Chars 10
> Bits 1184
> Period 8,0
That should be 19 chars.
I spent 3 days trying to decode, but without success.
The following carrier measures 16.4 dB in 1 hour and
that should give me Eb/N0 around 0.1 dB which has a good
chance of decoding. But for some reason it doesn't
decode. Maybe the signal was a dB or so weaker than the
following carrier. It must have been very close to the
limit. Or perhaps the symbol timing is a bit out.
Also I used all of your recent long carrier transmissions,
2015-12-30_00,+6h
2015-12-30_20,+11h
2016-01-01_00,+7h
2016-01-05_00,+7h
2016-01-06_00,+7h
2016-01-09_20,+11h
and tried a 49 hour integration, non-coherent in 278 uHz,
using signal recorded by Mike Smith at Forest Virginia,
but nothing showed above noise. The west-to-east path
is going to be a tough nut to crack, especially across
6667 km.
Mike is contemplating building a loop receiver similar to
mine which will help by maybe 6dB or more.
Really, someone should be looking for this carrier in
Canada or Newfoundland. That has a much better chance.
--
Paul Nicholson
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