Message-ID: <59EF709F.7090704@posteo.de>
Date: Tue, 24 Oct 2017 18:55:59 +0200
From: DK7FC <selberdenken@posteo.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <15f3640d1bf-c10-10621@webjas-vac109.srv.aolmail.net> <59E9451E.80901@posteo.de> <59E945D8.30101@posteo.de> <59E9FF29.5000206@posteo.de> <59EA03F4.2040700@posteo.de>
In-Reply-To: <59EA03F4.2040700@posteo.de>
Subject: Re: VLF: 300 mA on 5170 Hz
Content-Type: multipart/alternative;
 boundary="------------000201030609070100060700"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

This is a multi-part message in MIME format.
--------------000201030609070100060700
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

...the message was running on the 20th, 22th and 23th.

Today i made a mistake in the SpecLab settings which unfortunetely 
affectet the transmission.
I watched the alternating colours (due to the PSK) and saw that it 
doesn't switch the phase as expected. Then i quickly restartet SpecLab, 
it was bit chaotic but now it should work again. Since the symbol length 
is 3 minutes it was easy to delete the first 11 symbols and start this 
special file at 16:33:00 UTC. All in all just the first 8 symbols are 
affected. 2 of them were transmitted correctly (productive), 2 of them 
have opposite phase (destructive) and 4 were not transmitted (not really 
neutral but not so dramatic).
Fortunately the transmission takes 12 hours, so 24 minutes is just 3.3 % 
or -0.15 dB.
The transmimission should now continue as expected.
Just a note for those who follow it...

73, Stefan


Am 20.10.2017 16:11, schrieb DK7FC:
>
> *f = 5170.1000 Hz
> Start time: 20.October.2017  16:00:00 UTC (daily)
> Symbol period: 180 s
> Characters: 1
> CRC bits: 6
> Coding 8K19A
> Duration: 12h
> Antenna current: 300 mA*
>

--------------000201030609070100060700
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
...the message was running on the 20th, 22th and 23th.<br>
<br>
Today i made a mistake in the SpecLab settings which unfortunetely
affectet the transmission. <br>
I watched the alternating colours (due to the PSK) and saw that it
doesn't switch the phase as expected. Then i quickly restartet SpecLab,
it was bit chaotic but now it should work again. Since the symbol
length is 3 minutes it was easy to delete the first 11 symbols and
start this special file at 16:33:00 UTC. All in all just the first 8
symbols are affected. 2 of them were transmitted correctly
(productive), 2 of them have opposite phase (destructive) and 4 were
not transmitted (not really neutral but not so dramatic).<br>
Fortunately the transmission takes 12 hours, so 24 minutes is just 3.3
% or -0.15 dB.<br>
The transmimission should now continue as expected.<br>
Just a note for those who follow it...<br>
<br>
73, Stefan<br>
<br>
<br>
Am 20.10.2017 16:11, schrieb DK7FC:
<blockquote cite="mid:59EA03F4.2040700@posteo.de" type="cite">
  <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
  <br>
  <b>f = 5170.1000 Hz<br>
Start time: 20.October.2017  16:00:00 UTC (daily)<br>
Symbol period: 180 s<br>
Characters: 1<br>
CRC bits: 6<br>
Coding 8K19A<br>
Duration: 12h <br>
Antenna current: 300 mA</b><br>
  <br>
</blockquote>
</body>
</html>

--------------000201030609070100060700--