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Re: VLF: EbNaut tonite

To: [email protected]
Subject: Re: VLF: EbNaut tonite
From: Jacek Lipkowski <[email protected]>
Date: Fri, 7 Apr 2017 23:15:01 +0200 (CEST)
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <CAC+C6w62sYuCa58cYbVoNgNx9Nc8+QpQQ8489qjs7U2wymv6Gw@mail.gmail.com> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Alpine 2.11 (DEB 23 2013-08-11)
The 20170407 18:00 transmission didn't end yet, but Stefan's signal is strong enough to decode anyway (message sent to Stefan for confirmation).

This is from 3 hours 18:00-21:10:

found rank 311 ber 7.8030e-01 Eb/N0 -14.3 M -9.220018387e-01 [XXXXX] ps [  0    
0    0    0    0]
carrier phase: -25.2
carrier Eb/N0: 0.9
carrier S/N: 15.46 dB in 31.6 uHz
elapsed 30

VY 73

Jacek / SQ5BPF


On Fri, 7 Apr 2017, DK7FC wrote:

Date: Fri, 07 Apr 2017 16:28:22 +0200
From: DK7FC <[email protected]>
Reply-To: [email protected]
To: [email protected]
Subject: Re: VLF: EbNaut tonite

This evening, another transmission starts. Same parameters...
Let's see if the coil survives. It seems to have to do with the higher ambient
temperature. I disabled the ALC now, so the antenna current drops with a rising
temperature. Antenne current set to 700 mA again, safety limit set to 650 mA...

73, Stefan

Am 06.04.2017 17:40, schrieb DK7FC:
      VLF,

      A new Ebaut chance for everyone:

      f = 8270.100000 Hz
      Start time: 6.Apr.2017   18:00:00 UTC
      Symbol period: 30 s
      Characters: 5
      CRC bits: 16
      Coding 16K21A
      Duration: 8h, 48m
      Antenna current: 700 mA

      73, Stefan


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