Date: Fri, 5 May 2017 22:32:59 +0200 (CEST)
From: Jacek Lipkowski <sq5bpf@lipkowski.org>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <590B9892.9010406@posteo.de>
Message-ID: <alpine.DEB.2.11.1705052231070.685@mailn.lipkowski.org>
References: <15bd53dda31-14f8-1cb1c@webprd-m59.mail.aol.com> <590B9892.9010406@posteo.de>
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Subject: Re: VLF: tonite on the 36km band...
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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 <selberdenken@posteo.de>
> Reply-To: rsgb_lf_group@blacksheep.org
> To: rsgb_lf_group@blacksheep.org
> 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.
> 
> Exactly!
> Update:
> 
> 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: http://www.xxl-modellbau.de/Multicopter_2
> A good new project anyway...
> 
> 73, Stefan
> 
> 
>
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