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Date: Sat, 5 Mar 2011 17:43:54 +0000
Message-ID: <AANLkTima-x1tGY132npwvq=JO-x7G6J91ScGqb-DgPmj@mail.gmail.com>
From: Roger Lapthorn <rogerlapthorn@gmail.com>
To: rsgb_lf_group@blacksheep.org
DomainKey-Status: good (testing) 
Subject: Re: LF: VLF - G3XIZ QRT at 16.50 Z
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Hi Chris (G3XIZ)

It would be interesting to see a summary here of all the reports you've had
with the inverted-L and 100W on 9.0909kHz today and earlier in the week. At
best you were around 8dB S/N in 423uHz with me at 45km this morning. I
stopped looking around 0900 as I wanted to check 8.970kHz although nothing
was seen there. I think other semi-locals were getting you at reasonable
levels too.

How many stations have now managed to copy you, at what distance and at what
strength? If you know it, what receiver systems were they using and what
bandwidth settings on Spectrum Lab or whatever? Your best DX is still, I
believe, 218km from Paul Nicholson in Todmorden. The higher frequency
stability from the OCXO has certainly helped you get a few more reports from
further afield.

Thanks for giving us the challenge and fun of looking for your VLF signal.
It beats shouting oneself dry in the ARRL DX contest any day. You have
already proved that VLF TXing can be successful from a small back garden
style antenna with only moderate power. I am left wondering how successful
my 80m sq loop might be at launching a small *radiated* VLF signal.

73s
Roger G3XBM

-- 
g3xbm-qrp.blogspot.com/
www.g3xbm.co.uk
www.youtube.com/user/g3xbm
 <http://vlf_grabber>G3XBM   GQRP 1678    ISWL G11088

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Hi Chris (G3XIZ)<br><br>It would be interesting to see a summary here of=
 all the reports you&#39;ve had with the inverted-L and 100W on 9.0909kHz=
 today and earlier in the week. At best you were around 8dB S/N in 423uHz=
 with me at 45km this morning. I stopped looking around 0900 as I wanted=
 to check 8.970kHz although nothing was seen there. I think other semi-loc=
als were getting you at reasonable levels too.<br>

<br>How many stations have now managed to copy you, at what distance and=
 at what strength? If you know it, what receiver systems were they using=
 and what bandwidth settings on Spectrum Lab or whatever? Your best DX is=
 still, I believe, 218km from Paul Nicholson in Todmorden. The higher freq=
uency stability from the OCXO has certainly helped you get a few more repo=
rts from further afield.<br>
<br>Thanks for giving us the challenge and fun of looking for your VLF sig=
nal. It beats shouting oneself dry in the ARRL DX contest any day. You hav=
e already proved that VLF TXing can be successful from a small back garden=
 style antenna with only moderate power. I am left wondering how successfu=
l my 80m sq loop might be at launching a small <i>radiated</i> VLF signal.=
<br>
<br>73s<br>Roger G3XBM<br>
<br>-- <br><a href=3D"http://g3xbm-qrp.blogspot.com/" target=3D"_blank">g3=
xbm-qrp.blogspot.com/</a><br><a href=3D"http://www.g3xbm.co.uk" target=3D"=
_blank">www.g3xbm.co.uk</a><br><a href=3D"http://www.youtube.com/user/g3xb=
m" target=3D"_blank">www.youtube.com/user/g3xbm</a><br>

<a href=3D"http://vlf_grabber" target=3D"_blank"></a>G3XBM=A0=A0 GQRP 1678=
=A0=A0=A0 ISWL G11088<br>

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