Andy, as far as I know you can record a single long wav file, and then run ebnaut-rx several times with a new time offset for each decode attempt. E.g. if your files started 19:59:51, you'd enter 9,
Hi Joe, moderate during the night, but strong in the morning: 2015 Nov 29/30 start Eb/N0 UT dB 2000 nil 2030 nil 2100 3.6 2130 nil 2200 nil 2230 nil 2300 nil 2330 0.2 0000 nil 0030 0.3 0100 2.5 0130
Indeed a strong signal (again)... hope the message will find it's way to Italy tonight ;-) Attached is the symbols plot for the 22 UT transmission, which decoded at 10.9 dB Eb/N0. On this small Win-1
Hi Paul, that's an interesting plot! Presumably the carrier is not really interrupted, only the frequency seems to be slightly off. The first few spikes show a regular alternating pattern with ~180°
After some CPU-sweat, the first decode happened after 21 UT: Eb/N0 1.8 dB, 607/2144 bit errors, rank 0. 39 characters in just under 18 minutes - not too bad ;-) 73, Markus --Ursprüngliche Mitteilung-
Tried to run Windows ebnaut-rx v0.3e from command line with -N 131 option but no joy. The maximum seems to be 90 characters. 73, Markus --Ursprüngliche Mitteilung-- Von: Paul Nicholson <vlf0403@abeli
Hi Paul, thanks for that! But I'm afraid that my "faster" Notebook (2x 2.66 GHz, 8 GByte) is just not up to the task. Successfully managed to start v0.3f with 4k19A and 131 characters, and it produce
John, yes this is a valid point, as Joe is currently putting a very good signal into Europe. Domenico and I have been using the WSPR2/Op32 section near 137.5 kHz before, but that's probably not ideal
Perhaps with a little help from enhanced propagation, the fast intercontinental messaging worked really well... 2015 Dec 4/5 131ch 4K19A 3280x0.2s start Eb/N0 UT dB 2200 0.1 2230 1.0 2300 5.5 2330 6.
Yesterday and today, I got a few daytime results also here in the European Hinterland: 2015 Dec 6 "VO1NA" 5ch 16K21A 1056x5s start Eb/N0 df UT dB mHz 0130 16.8 -.3 0300 75.5 -.1 0430 75.5 -.15 0600 1
Paul, that's an interesting phase plot! Although it's probably hard to completely rule out a contribution from TX oscillator drift, the 3.5-cycle day-night change seems quite plausible. Attached is a
Unfortunately neither here, except for a permanent Russian Loran line exactly on 137775. 73 and good luck, Markus (DF6NM) --Ursprüngliche Mitteilung-- Von: DK7FC <[email protected]> An: rsgb_lf_
Attached are measurements of your carrier from midnight until 16:24 today. The carrier phase plot (centered on the nominal frequency) seems to show a general downward curvature presumably due to osci
Hi Domenico, started looking only at 20 UT. Your signal is strong here, and timing and frequency are accurate. So it became an easy decode with Eb/N0=22.1 dB from only one symbol error. Spectrogram:
Hi Edgar, if I remember right, the DCF39 idle carrier is not exactly on 138830 Hz but about 0.55 Hz up. The frequency is also not very stable and there is a ~ 0.1 Hz spread from the telegrams, so in
