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Re: VLF: tonite...

To: [email protected]
Subject: Re: VLF: tonite...
From: DK7FC <[email protected]>
Date: Fri, 17 Nov 2017 14:30:29 +0100
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Hello Markus,

Thanks again.
The 3 char message from Nov 7-9 was QSO text, a Russian abbreviation. You might know find the meaning.

You see, i'm struggling to pass that 3 char message over to RC4HAA :-( Right now i'm trying to get a decode from 3 stacked days, but still nothing. I'm getting loads of garberage messages, which appears to be suspicious to me. There must be something wrong with their phase stability, as i meant in the past already. I thought the average phase will tend to be more stable so i should get a decode soon. But maybe i am wrong. If i won't get a decode today i will repeat the message over the weekend days again, then i will give up with RC4HAA. If i can manage to get a decode, i will start to pass my call, i.e. 5 chars to them. This will be the longest message for that path. Then i will turn back to other bands...

73, Stefan

Am 17.11.2017 12:06, schrieb Markus Vester:
Here are our results for the last three nights, showing good Eb/N0 and flat phase. Unlike the somewhat mysterious three characters from Nov 7-9, this time the message was obviously related to VLF work.

date  DF6NM DL0AO (west)
 Nov.     dB      dB
14-15   11.8    12.5 
15-16   11.7    11.6
16-17   10.7    11.1

Note that DF6NM data happened to be slightly short, with 6.5 % of the sequence cut off at the end.

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: DK7FC <[email protected]>
An: rsgb_lf_group <[email protected]>
Cc: Андрей Климов <[email protected]>
Verschickt: Di, 14. Nov 2017 17:09
Betreff: VLF: tonite...


Tonite, a new attempt to leave a 3 char message at RC4HAA and an invitation to newcomers:

f = 8270.1000 Hz
Start time: 14.November.2017  16:00:00 UTC (daily)
Symbol period: 60 s
Characters: 3
CRC bits: 10
Coding 16K21A
Duration: 12:48 [hh:mm]
Antenna current: 650 mA

73, Stefan

PS: The sun is back, the grabber is back! :-)
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