Message-ID: <5A21657B.7030308@posteo.de>
Date: Fri, 01 Dec 2017 15:21:47 +0100
From: DK7FC <selberdenken@posteo.de>
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To: rsgb_lf_group@blacksheep.org
References: <1600ece86fd-171b-256f@webjas-vac163.srv.aolmail.net> <5A209D96.5070807@posteo.de>
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Subject: Re: VLF: DK7FC close to SAQ
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There were a number of interruptions. The carrier stopped arround 4 UTC. 
It was restarted arround 9 UTC but stopped again 20 minutes later. The 
reason is heavy snow which triggered the safety function. I disabled the 
function manually and observed the antenna current. It dropped down to 
500 mA during the snow, -6 dB. Now it is back since 14 UTC at 1 A. I 
hope it will hold some time so we can see more traces on the grabbers...

In the afternoon a DFCW-90 transmission was done over to DL0AO in 226 km 
distance. Markus may report...

73, Stefan

Am 01.12.2017 01:08, schrieb DK7FC:
> ...there has been an interruption of the carrier between 23:00...23:50 
> UTC. It is now back with opposite phase, i.e. the same phase as during 
> the 700 mA test.
> 73, Stefan
>
> Am 30.11.2017 22:21, schrieb Markus Vester:
>> Hi Stefan,
>>
>> good to see the carrier back, I've already been missing that 
>> cheerful green trace on DL0AO ;-)
>>
>> But it looks like the phase is inverted now. Did you happen to change 
>> something about the pickup probe circuitry? A more likely explanation 
>> might be that the SpecLab PSK has unintentionally been enabled (a = 0 
>> or 1, bypass factors 1 or -1). It would be nice to have the phase 
>> back where it was...
>>
>> Best 73,
>> Markus
>>
>>
>> -----Ursprüngliche Mitteilung-----
>> Von: DK7FC <selberdenken@posteo.de>
>> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
>> Verschickt: Do, 30. Nov 2017 21:44
>> Betreff: Re: VLF: DK7FC close to SAQ
>>
>> Hello VLF,
>>
>> The TX was switched OFF at 19 UTC, so the carrier was on air for 116 
>> hours :-)
>>
>> Since 20:30 UTC it is now back at 1 A antenna current, 3 dB more. The 
>> QRG is still 17.470100000 kHz
>>
>> 73, Stefan

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There were a number of interruptions. The carrier stopped arround 4
UTC. It was restarted arround 9 UTC but stopped again 20 minutes later.
The reason is heavy snow which triggered the safety function. I
disabled the function manually and observed the antenna current. It
dropped down to 500 mA during the snow, -6 dB. Now it is back since 14
UTC at 1 A. I hope it will hold some time so we can see more traces on
the grabbers...<br>
<br>
In the afternoon a DFCW-90 transmission was done over to DL0AO in 226
km distance. Markus may report...<br>
<br>
73, Stefan<br>
<br>
Am 01.12.2017 01:08, schrieb DK7FC:
<blockquote cite="mid:5A209D96.5070807@posteo.de" type="cite">
  <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
  <title></title>
...there has been an interruption of the carrier between 23:00...23:50
UTC. It is now back with opposite phase, i.e. the same phase as during
the 700 mA test. <br>
73, Stefan<br>
  <br>
Am 30.11.2017 22:21, schrieb Markus Vester:
  <blockquote
 cite="mid:1600ece86fd-171b-256f@webjas-vac163.srv.aolmail.net"
 type="cite">
    <div
 style="font-size: 10pt; font-family: arial,helvetica,sans-serif; color: black;">
    <div
 style="color: black; font-family: arial,helvetica,sans-serif; font-size: 10pt;"
 abp="2818">Hi Stefan,<br>
    <br>
good to see the carrier back, I've already been missing that
cheerful green trace on DL0AO ;-)<br>
    <br>
But it looks like the phase is inverted now. Did you happen to change
something about the pickup probe circuitry? A more likely explanation
might be that the SpecLab PSK has unintentionally been enabled (a = 0
or 1, bypass factors 1 or -1). It would be nice to have the phase back
where it was...<br>
    <br>
Best 73,<br>
Markus <br abp="2819">
    <br abp="2820">
    <br abp="2821">
-----Ursprüngliche Mitteilung----- <br abp="2822">
Von: DK7FC <a moz-do-not-send="true" class="moz-txt-link-rfc2396E"
 href="mailto:selberdenken@posteo.de">&lt;selberdenken@posteo.de&gt;</a><br
 abp="2823">
An: rsgb_lf_group <a moz-do-not-send="true"
 class="moz-txt-link-rfc2396E"
 href="mailto:rsgb_lf_group@blacksheep.org">&lt;rsgb_lf_group@blacksheep.org&gt;</a><br
 abp="2824">
Verschickt: Do, 30. Nov 2017 21:44<br abp="2825">
Betreff: Re: VLF: DK7FC close to SAQ<br abp="2826">
    <br abp="2827">
    </div>
    <div id="AOLMsgPart_2_e2520312-174a-4657-8634-aec88f86ec0d"
 abp="2828">
    <div class="aolReplacedBody" abp="2829" text="#000000"
 bgcolor="#ffffff">Hello VLF, <br abp="2830">
    <br abp="2831">
The TX was switched OFF at 19 UTC, so the carrier was on air for 116
hours :-)<br abp="2832">
    <br abp="2833">
Since 20:30 UTC it is now back at 1 A antenna current, 3 dB more. The
QRG is still 17.470100000 kHz<br abp="2834">
    <br abp="2835">
73, Stefan</div>
    </div>
    </div>
  </blockquote>
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