Message-ID: <5A271218.9040803@posteo.de>
Date: Tue, 05 Dec 2017 22:39:36 +0100
From: DK7FC <selberdenken@posteo.de>
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To: rsgb_lf_group@blacksheep.org
References: <4d96a9d4-5f22-7650-872b-6344e9aea8e3@abelian.org> <5A19FF75.7080801@posteo.de> <CANA3B6VmLfG7AA692ajKxa6+swztKOmi-YcattQQOi_mMPzitA@mail.gmail.com> <5A1FFE7C.9050703@posteo.de> <CANA3B6X8GZOzduMGcppmDHdTDQ6R5Pq6GHSUuRuuRASe9WbA7Q@mail.gmail.com> <5A226B0C.3080701@posteo.de> <CAEduzkpDMw-kvmbU9q4DMhtzeQJdQd=5D0Xqa73auHaVGpH-8A@mail.gmail.com> <CAL4b5hBWRNbMSm7P2H6BTDTa3qPEiHNgF16R9o3A-X9ggAV6uw@mail.gmail.com> <579355A36AEE9D4FA555C45D556003AB9AAB0EB9@servigilant.vigilant.local> <5A25C304.3050607@posteo.de> <CANA3B6UU_AWP3S4K0XT4yju_ZKi+DM3Z8LYAOu0_KrHXR_W9aA@mail.gmail.com>
In-Reply-To: <CANA3B6UU_AWP3S4K0XT4yju_ZKi+DM3Z8LYAOu0_KrHXR_W9aA@mail.gmail.com>
Subject: Re: VLF: First VLF detection DL > EA
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Hello Riccardo,

My congrats to your first VLF message decode! I confirm the message is 
correct.
You see now that VLF reception is possible from your QTH and you just 
need to get less noise on 8270 Hz maybe. But the system and 
frequency+phase stability is there! This weekend there may be a chance 
to pick up something on 8270...

The night is already a few hours old, so let's try just 4 characters:

*f = 17470.1000 Hz
Start time: 05.Dec.2017  21:40:00 UTC
Symbol period: 30 s
Characters: 4
CRC bits: 16
Coding 16K21A
Duration: 08:00 [hh:mm]
Antenna current: 1 A*

73, Stefan


Am 05.12.2017 19:43, schrieb Riccardo Zoli:
> Hi Stefan, Luis, Paul, VLF
>
> this is my decode (the first in VLF).
> Very strong here, despite noisy reception.
> Stefan, please could you try to send a faster message after sunset,
> when SNR of your carrier is much better?
> I made some tests whith EbNaut decoder: " ****** " message appear on
> your carrier with 2 or 3 sec./sym (with a few +dBs of Eb/N0).
>
> All the best
>
> 73 de Riccardo IW4DXW
>
>
>
> 2017-12-04 21:49 GMT+00:00 DK7FC<selberdenken@posteo.de>:
>    
>> Hi VLF,
>>
>> Tomorrow i'm going to gtry to pass a first EbNaut message over to EA5DOM.
>> Here are the details:
>>
>> f = 17470.1000 Hz
>> Start time: 05.Dec.2017  07:00:00 UTC
>> Symbol period: 120 s
>> Characters: 1
>> CRC bits: 6
>> Coding 8K19A
>> Duration: 08:00 [hh:mm]
>> Antenna current: 1 A
>>
>> 73, Stefan
>>

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Hello Riccardo, <br>
<br>
My congrats to your first VLF message decode! I confirm the message is
correct. <br>
You see now that VLF reception is possible from your QTH and you just
need to get less noise on 8270 Hz maybe. But the system and
frequency+phase stability is there! This weekend there may be a chance
to pick up something on 8270...<br>
<br>
The night is already a few hours old, so let's try just 4 characters:<br>
<br>
<b>f = 17470.1000 Hz<br>
Start time: 05.Dec.2017  21:40:00 UTC<br>
Symbol period: 30 s<br>
Characters: 4<br>
CRC bits: 16<br>
Coding 16K21A<br>
Duration: 08:00 [hh:mm] <br>
Antenna current: 1 A</b><br>
<br>
73, Stefan<br>
<br>
<br>
<br>
Am 05.12.2017 19:43, schrieb Riccardo Zoli:
<blockquote
 cite="mid:CANA3B6UU_AWP3S4K0XT4yju_ZKi+DM3Z8LYAOu0_KrHXR_W9aA@mail.gmail.com"
 type="cite">
  <pre wrap="">Hi Stefan, Luis, Paul, VLF

this is my decode (the first in VLF).
Very strong here, despite noisy reception.
Stefan, please could you try to send a faster message after sunset,
when SNR of your carrier is much better?
I made some tests whith EbNaut decoder: " ****** " message appear on
your carrier with 2 or 3 sec./sym (with a few +dBs of Eb/N0).

All the best

73 de Riccardo IW4DXW


2017-12-04 21:49 GMT+00:00 DK7FC <a class="moz-txt-link-rfc2396E" href="mailto:selberdenken@posteo.de">&lt;selberdenken@posteo.de&gt;</a>:
  </pre>
  <blockquote type="cite">
    <pre wrap="">Hi VLF,

Tomorrow i'm going to gtry to pass a first EbNaut message over to EA5DOM.
Here are the details:

f = 17470.1000 Hz
Start time: 05.Dec.2017  07:00:00 UTC
Symbol period: 120 s
Characters: 1
CRC bits: 6
Coding 8K19A
Duration: 08:00 [hh:mm]
Antenna current: 1 A

73, Stefan</pre>
    <br>
  </blockquote>
</blockquote>
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