Re: VLF: Finally back on the 58 km band...

[DK7FC <selberdenken@posteo.de>]

Am 05.01.2018 14:55, schrieb Paul Nicholson:
> Stefan wrote:
>
> > f = 5170.1000 Hz
> > Start time: 29.Dec.2017  15:00:00 UTC
> > Symbol period: 30 s
> > Characters: 12
> > CRC bits: 20
> > Coding 16K21A
> > Duration: 14:56 [hh:mm]
>
>
> Warsaw (919.3 km SQ5BPF)
> ------------------------
>
>  29/30 Eb/N0  -5.4 dB, S/N -34.4 dB/1Hz, phase -20.3;
>  30/31 Eb/N0 -17.2 dB, S/N -46.2 dB/1Hz;
>  31/01 Eb/N0  -7.8 dB, S/N -36.8 dB/1Hz, phase -44.2;
>  01/02 Eb/N0  -6.1 dB, S/N -35.1 dB/1Hz, phase -36.1;
>  02/03 Eb/N0  -8.2 dB, S/N -37.1 dB/1Hz, phase   2.9;
>  03/04 Eb/N0 -10.2 dB, S/N -39.2 dB/1Hz, phase -33.1;
>  04/05 Eb/N0  -8.1 dB, S/N -37.1 dB/1Hz, phase  -3.8;
>
>  Seven stacked: Eb/N0 -0.8 dB;
Interesting. Tomorrow we may get a decode, or in 2 days. I like these 
stacking procedures. It makes things even more exciting.
I remember you wrote:

Am 27.12.2017 15:20, schrieb Paul Nicholson:
> Stefan wrote:
>
> > f = 5170.1000 Hz
> > Start time: 23.Dec.2017  15:30:00 UTC (daily)
> > Symbol period: 60 s
> > Characters: 3
> > CRC bits: 11
> > Coding 16K21A
> > Duration: 13:04 [hh:mm]
>
> Warsaw (919.3 km SQ5BPF)
> ------------------------
>
>  23/24 Eb/N0 -4.3 dB phase -37.4;
>  24/25 Eb/N0 +2.2 dB phase -13.5, *Decoded*
>  25/26 Eb/N0 -3.1 dB phase  -2.5;
>  26/27 Eb/N0 -0.2 dB phase -17.4, *Decoded* 
...so there can be a decode of 3 chars in a single day but 12 chars take 
more than 7 days. Oh oh, it will be hard to get a decode from Alex. It 
will be interesting. In 5 days he will visit the garden again :-)
73, Stefan