Hi Paul,
OK, very well!
Now, let's try:
f = 6470.00000 Hz
Start time: 03.11.2016 06:00:00 UTC
Symbol length: 30 s
Characters: 11
CRC 16
Coding 16K25A
Duration: 14h, 08m, 0s
Antenna current: ~ 280 mA
73, Stefan
Am 02.11.2016 21:25, schrieb Paul Nicholson:
Even more aggressive sferic blanking raises
the decode to Eb/N0 +1.7 dB BER 38.2%
S/N 16.10 dB in 25.4 uHz.
Using around 50% of the channel capacity.
The carrier S/N is about 1.6 dB weaker than
expected for that Eb/N0.
> Would you think a 11 character message will decode?
Yes, with the same signal and noise, it would decode
at about +0.8 dB... if the terminator doesn't mess
things up.
> Can you provide a bit error image (you know what i mean)
http://abelian.org/vlf/tmp/161102a.gif
There are 1312 transmitted symbols, 30 seconds each.
Each red line indicates a symbol received in error, there
are 502 of these.
--
Paul Nicholson
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