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Stefan
Condx are certainly not what they were a few weeks back. Perhaps the prolonged low solar activity is taking it's toll. The 180, 180, 180, 180 was a full decoder run.
Unfortunately I didn't noticed the lack of bandwidth until starting the decoding process later in the evening. My bad.
Are you still running that amazing glass tube / litz loading coil?
Jay W1VD
----- Original Message -----
Sent: 11/14/2018 3:04:26 AM
Subject: Re: LF: Re: LF EbNaut tonite
Hi Jay,
Thanks for the decodes and the efforts.
A pity about the other stations outside the bandwidth but anyway it was nice to see 4 EbNaut stations side by side! Maybe the other stations catched something...
Anyway it seems the conds have not been good at all. Is the 180,180,180,180 result the final decoder result or did you take a capture right after the message appeared the first time?
If the phase is that stable, it must have been the SNR, i.e. high noise levels and/or a lossy path.
If i can find the time today, i may add some turn on the coil and come back on 136.172 kHz for some DFCW, like in the good old days :-) Then the QSB and phase variations doesn't matter and it is also a chance for Pauls new grabber.
Or, some tests with JT9-5. But it seems to be hard to transfer 13 characters in 5 minutes these days. Looks like i need a real coil again!
73, Stefan
Am 14.11.2018 05:25, schrieb [email protected]:
Stefan
The 0000Z transmission (first one captured tonight) was best this evening ... copy below. Similar copy on 0100Z transmission, no copy on 0200Z and 1.8 dB Eb/N0 on 0300Z.
Marcus and Domenico ... unfortunately just noticed that the setup didn't have sufficient bandwidth to include your frequency.
Jay W1VD
----- Original Message -----
Sent: 11/13/2018 3:46:16 PM
Subject: Re: LF: Re: LF EbNaut tonite
Hi Jay,
Am 13.11.2018 21:31, schrieb [email protected]:
Stefan
Did you announce your intentions for tonight's EbNaut transmission ... if so, I must have missed it.
Jay W1VD Yes:
f = 137.620 kHz
Start time: 13.NOV.2018 21:00 UTC (hourly, until including 6 UTC)
Symbol period: 3 s
Characters: 5
CRC bits: 16
Coding 8K21A (!)
Antenna current: 4 A
Duration: 26:24 [mm:ss]
From my todays email of 9:21 UTC.
73, Stefan
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