Stefan wrote:

> f = 6470.00000 Hz
> Start time: 14.05.2016   21:40:02 UTC
> Symbol length: 100 s
> Characters: 6
> CRC 16
> Coding 8K19A

An easy decode of 'JN49IK' with Eb/N0 = +3.8 dB.

Phase pattern: 30   30    0    0

Carrier S/N: 16.96 dB in 17.9 uHz

Symbol errors: http://abelian.org/vlf/tmp/160514a.gif

>  the same message

Now I know the message I can reverse the modulation of
the previous attempt to see why it didn't decode.

--
Paul Nicholson
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