Message-ID: <4D75EEEE.4000701@iup.uni-heidelberg.de>
Date: Tue, 08 Mar 2011 09:55:10 +0100
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <schaefer@iup.uni-heidelberg.de>
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Subject: Re: LF: VLF Reports - G3XIZ  - 5th March 2011
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Hi Chris,

Congratulations to that great success! Your work and motivation shows us 
you are a real DREAMER! :-)

Looking at the different screenshots i see that your frequency is 
actually very stable, impressing. I agree with Paul Nicholson that you 
may be visible here in even smaller bandwidths than 424 uHz. With a 
fixed antenna, the ERP is lower but you can run the TX for several days 
if necessary. So we may try it in "60000".

Last friday i have arranged a grabber window for you at 
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
Since i haven't had the time to wait until the first pixels appeared, i 
haven't optimised the color scale. The spectrogram is to dark now. But i 
can correct that afterwards! So maybe i will find a faint trace of you? 
:-) Otherwise i will try it even slower next time.
Looking forward to that!

73, Stefan/DK7FC

Am 07.03.2011 22:33, schrieb Chris Osborn:
> LF,
>
> Following my 9.090 909 kHz transmissions last Saturday I received 
> positive reports from the following stations:
>
> Paul Nicholson     218 km
> G3ZJO                  46  km
> G3XBM                 45  km
> G3WCD                19  km
> M0JXM                  1.5 km
>
> Many thanks to these stations and to the others who tried to copy me 
> but reported no success.
>
> STATION SET UP
>
> Home built VLF TX with a Droitwich-locked frequency reference and a 
> programmable divider (10.000 MHz / 1100).
> Output power - approx 100 watts RF from a MOSFET PA and 30 volt supply.
> Aerial - 40 m end fed inverted 'L' at a height of 10m. - running NE / SW
> Loading Coil - home made 1.3 H on a wooden-framed former.
>
> Paul Nicholson believes that with a long and stable transmission I may 
> possibly be picked up by mainland European stations.
> I hope to be transmitting on VLF most weekends and will publish times 
> and frequencies as appropriate.
>
> 73
> Chris G3XIZ
>
>
>
>
>

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Hi Chris, <br>
<br>
Congratulations to that great success! Your work and motivation shows
us you are a real DREAMER! :-)<br>
<br>
Looking at the different screenshots i see that your frequency is
actually very stable, impressing. I agree with Paul Nicholson that you
may be visible here in even smaller bandwidths than 424 uHz. With a
fixed antenna, the ERP is lower but you can run the TX for several days
if necessary. So we may try it in "60000".<br>
<br>
Last friday i have arranged a grabber window for you at
<a class=3D"moz-txt-link-freetext" href=3D"http://www.iup.uni-heidelberg.d=
e/schaefer_vlf/DK7FC_VLF_Grabber2.html">http://www.iup.uni-heidelberg.de/s=
chaefer_vlf/DK7FC_VLF_Grabber2.html</a><br>
Since i haven't had the time to wait until the first pixels appeared, i
haven't optimised the color scale. The spectrogram is to dark now. But
i can correct that afterwards! So maybe i will find a faint trace of
you? :-) Otherwise i will try it even slower next time.<br>
Looking forward to that!<br>
<br>
73, Stefan/DK7FC<br>
<br>
Am 07.03.2011 22:33, schrieb Chris Osborn:
<blockquote cite=3D"mid:173380.23169.qm@web28511.mail.ukl.yahoo.com"   typ=
e=3D"cite">
  <style type=3D"text/css"><!-- DIV {margin:0px;} --></style>
  <div style=3D"font-family: arial,helvetica,sans-serif; font-size: 10pt;"=
>
  <div>LF,<br>
  <br>
Following my 9.090 909 kHz transmissions last Saturday I received
positive reports from the following stations:<br>
  <br>
Paul Nicholson=C2=A0=C2=A0=C2=A0=C2=A0 218 km=C2=A0=C2=A0=C2=A0 <br>
G3ZJO=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 46=C2=A0 km=C2=A0=C2=A0=C2=A0 <br>
G3XBM=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 45=C2=A0 km=C2=A0=C2=A0 <br>
G3WCD=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 19=C2=A0 km<br>
M0JXM=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1.5 km<br>
  <br>
Many thanks to these stations and to the others who tried to copy me
but reported no success.<br>
  <br>
STATION SET UP<br>
  <br>
Home built VLF TX with a Droitwich-locked frequency reference and a
programmable divider (10.000 MHz / 1100).<br>
Output power - approx 100 watts RF from a MOSFET PA and 30 volt supply.<br=
>
Aerial - 40 m end fed inverted 'L' at a height of 10m. - running NE / SW<b=
r>
Loading Coil - home made 1.3 H on a wooden-framed former.<br>
  <br>
Paul Nicholson believes that with a long and stable transmission I may
possibly be picked up by mainland European stations.<br>
I hope to be transmitting on VLF most weekends and will publish times
and frequencies as appropriate.<br>
  <br>
73 <br>
Chris G3XIZ<br>
  <br>
  <br>
  <br>
  <br>
  </div>
  </div>
  <br>
</blockquote>
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