Message-ID: <4DD6BA07.8080008@iup.uni-heidelberg.de>
Date: Fri, 20 May 2011 20:59:19 +0200
From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= <schaefer@iup.uni-heidelberg.de>
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To: rsgb_lf_group@blacksheep.org
References: <769180.65353.qm@web28514.mail.ukl.yahoo.com> <BANLkTiniO+GP7J1_3OWwk85bJjKsHAA9QA@mail.gmail.com>
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Subject: LF: YO grabber
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Hello Chris, LF,

Very interesting, your noise and DCF39 plot. One can clearly see that 
the best time for a DL-YO contact is just before sunrise, where the SNR 
of DCF39 is about 60 dB (!). Currently its just 15 dB!

I have an idea: Could you add another temporary trace where you show the 
signal level of the level at 137.711 kHz +- 2 Hz? Then you/we would get 
in impression of the SNR of my signal at your location. I would be 
active regularly, even in the night. I think you would have to enable 
displaying the maximum value and we have to think about the FFT width 
and so. Would it be interesting for you? Maybe i can make some clear 
peaks on that trace :-)

73, Stefan/DK7FC

Am 19.05.2011 23:18, schrieb Chris 4X1RF:
> Hello LF,
>
> Stefan's signal is weaker than usual today but nicely visible in QRSS3 
> in YO: http://qsl.net/4x1rf/yo/lfgrabber.htm
>
> 73s
> Chris 4X1RF
>
>
>
>
> On Thu, May 19, 2011 at 11:56 PM, Chris Osborn <g3xiz@yahoo.co.uk 
> <mailto:g3xiz@yahoo.co.uk>> wrote:
>
>     LF,
>
>     DK7FC is calling CQ on 137.710 kHz using QRSS-10
>     'O' copy with QSB in IO92UB
>
>     73
>     Chris G3XIZ
>
>

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Hello Chris, LF, <br>
<br>
Very interesting, your noise and DCF39 plot. One can clearly see that
the best time for a DL-YO contact is just before sunrise, where the SNR
of DCF39 is about 60 dB (!). Currently its just 15 dB!<br>
<br>
I have an idea: Could you add another temporary trace where you show
the signal level of the level at 137.711 kHz +- 2 Hz? Then you/we would
get in impression of the SNR of my signal at your location. I would be
active regularly, even in the night. I think you would have to enable
displaying the maximum value and we have to think about the FFT width
and so. Would it be interesting for you? Maybe i can make some clear
peaks on that trace :-)<br>
<br>
73, Stefan/DK7FC<br>
<br>
Am 19.05.2011 23:18, schrieb Chris 4X1RF:
<blockquote   cite="mid:BANLkTiniO+GP7J1_3OWwk85bJjKsHAA9QA@mail.gmail.com"   type="cite">
  <div dir="ltr">Hello LF,<br>
  <br>
Stefan's signal is weaker than usual today but nicely visible in QRSS3
in YO: <a moz-do-not-send="true"   href="http://qsl.net/4x1rf/yo/lfgrabber.htm">http://qsl.net/4x1rf/yo/lfgrabber.htm</a><br>
  <br>
73s<br>
Chris 4X1RF<br>
  <br>
  <br>
  <br>
  <br>
  <div class="gmail_quote">On Thu, May 19, 2011 at 11:56 PM, Chris
Osborn <span dir="ltr">&lt;<a moz-do-not-send="true"   href="mailto:g3xiz@yahoo.co.uk">g3xiz@yahoo.co.uk</a>&gt;</span> wrote:<br>
  <blockquote class="gmail_quote"   style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
    <table border="0" cellpadding="0" cellspacing="0">
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          <br>
DK7FC is calling CQ on 137.710 kHz using QRSS-10<br>
'O' copy with QSB in IO92UB<br>
          <br>
73<br>
Chris G3XIZ<br>
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