Re: LF: 8270Hz

[Paul Nicholson <vlf0403@abelian.org>]

Uwe wrote:

> Coding 8K19A
> Start 2016-01-04 22:45:00
> Period 10
> Duration 01:25:20:00
> Chars 5

I got

 found rank 4044817 ber 4.0625e-01
 Eb/N0 -3.0 M -8.368480206e-02 [DJ8WX]
 ps [  4  -30  -30  -30  -30]

This counts as a detection, not a decode because it was not
the most significant output from the list decoder.  In fact
it was the 22nd lowest and I had to use a list size of 5 million
to find it.   Eb/N0 was -3dB with BER 40.6% which is not
decodable.

I suspect something is happening with the phase at around that
time of night, maybe a reversal.  That would explain the failure
of 'WX' the other day.   I need to do a bit more work to
investigate.

--
Paul Nicholson
--