received the 20170307 transmission (message sent to Stefan for
verification)
prep [ 0 0 0 0 0]
found rank 0 ber 2.8720e-01 Eb/N0 6.7 M -3.842122555e+00 [XXXXXXXX] ps [0 0
0 0 0]
carrier phase: -0.0
carrier Eb/N0: 6.6
carrier S/N: 23.20 dB in 24.8 uHz
elapsed 42
this was received using a new antenna, not sure if its better or worse
than the usual one
VY 73
Jacek / SQ5BPF
On Tue, 7 Mar 2017, DK7FC wrote:
Date: Tue, 07 Mar 2017 23:37:13 +0100
From: DK7FC <[email protected]>
Reply-To: [email protected]
To: [email protected]
Subject: Re: VLF: Tonite...
VLF,
I'm trying another 8 character message, just to get a clear decode from Alex.
Of course all reports are welcome, as usual :-)
The message has started to late again but not as late as the last one, so maybe
there will be a clear decode. On the other side there
is more QRN now. Some day we will need a tool for stacking/ combining multiple
wav files under windows! It would make things easy on
that path.
Now:
f = 8270.100000 Hz
Start time: Tuesday 07.Mar.2017 22:20:00.3
Symbol period: 30 s
Characters: 8
CRC bits: 16
Coding 16K21A
Duration: 11h, 12m, 0s
Antenna current: 700 mA
Based on the last carrier S/N of Alex' last decode this could be the result:
http://abelian.org/ebnaut/calc.php?sndb=15.87&snbws=0.000035&snmps=&code=16K21&sp=30&crc=16&nc=8&submit=Calculate
But some hours will fall into daylight, so it will be quite close to the limit
again! :-)
73, Stefan
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