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Re: VLF: tonite on the 36km band...

To: [email protected]
Subject: Re: VLF: tonite on the 36km band...
From: Jacek Lipkowski <[email protected]>
Date: Fri, 5 May 2017 22:32:59 +0200 (CEST)
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Alpine 2.11 (DEB 23 2013-08-11)
The 20170504 transmission received in Warsaw:

found rank 0 ber 3.2337e-01 Eb/N0 6.6 M -2.813181400e+00 [VLF] ps [  0    0    
0    0    0]
carrier phase: 1.6
carrier Eb/N0: 6.9
carrier S/N: 19.23 dB in 34.0 uHz
elapsed 27

VY 73

Jacek / SQ5BPF

On Thu, 4 May 2017, DK7FC wrote:

Date: Thu, 04 May 2017 23:09:38 +0200
From: DK7FC <[email protected]>
Reply-To: [email protected]
To: [email protected]
Subject: Re: VLF: tonite on the 36km band...

Am 04.05.2017 22:54, schrieb Markus Vester:
      > The 3 char transmission for tonite failed.

      Pity. Do you want to try again later tonight? That would probably
      imply rescheduling the following daytime sequence as well.


f = 8270.100000 Hz
Start time: 04.May.2017   21:00:00 UTC
Symbol period: 40 s
Characters: 3
CRC bits: 8
Coding 16K21A
Duration: 8h, 10m, 40s
Antenna current: 670 mA
(Set list length to: 239 in the first run)
This is an experiment using a low CRC value which gives a lower optimum list 
length. Let's
see if it produces to many false decodes.

Probably that's a transmission for Paul only:

f = 8270.100000 Hz
Start time: 05.May.2017   05:30:00 UTC
Symbol period: 10 s
Characters: 100
CRC bits: 0
Coding 8K19A
Duration: 13h, 44min
Antenna current: 670 mA

      > The fan has blown itselfe from the table

      Wow, you might end up using that fan as a helicopter to raise the antenna 

Again, exactly! Because that may become necessary in the future. They are 
planning a safety
inpection for July this year! In the worst case it will be the end of this 
setup here. So i'm
pallning for any eventualities:
A good new project anyway...

73, Stefan

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