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From: Roger Lapthorn <rogerlapthorn@gmail.com>
Date: Tue, 23 Jan 2018 21:08:04 +0000
Message-ID: <CAHAQVWN50Um1zyr3w4zDcyTXsh7OnWgBaAJkiDE9iMOT14aSPg@mail.gmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: 136kHz WSPR RX using the earth-electrode "antenna" in the ground
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Hi Chris G3XIZ,

Your S/N is about 2-3dB better on the earth-electrode "antenna" than on the
compromise vertical. I think the "loop" in the ground would be end-on in
your direction. Thank you so much for coming on 136kHz WSPR.

G6AVK has also been active, but *not* copied. He is orthogonal to the
"loop".

73s
Roger G3XBM

On 23 January 2018 at 19:33, Roger Lapthorn <rogerlapthorn@gmail.com> wrote:

> This evening, I am on 136kHz WSPR RX using my earth-electrode "antenna"
> instead. The nearby commercial signal is* stronger *on the ground
> "antenna" than on the vertical.
>
> If you are able to come on 136kHz WSPR this evening it will be interesting
> to compare the difference. Still using the deaf (at 136kHz) FT817.
>
> Incidentally, the schematic of the mag-mounted EFP on the car roof used
> many years ago is attached. This was used with the FT817 very successfully.
>
> 73s
> Roger G3XBM
>

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<div dir=3D"ltr"><div>Hi Chris G3XIZ,</div><div><br></div><div>Your S/N is =
about 2-3dB better on the earth-electrode &quot;antenna&quot; than on the c=
ompromise vertical. I think the &quot;loop&quot; in the ground would be end=
-on in your direction. Thank you so much for coming on 136kHz WSPR. </div><=
div><br></div><div>G6AVK has also been active, but <i>not</i> copied. He is=
 orthogonal to the &quot;loop&quot;.</div><div><br></div><div>73s</div><div=
>Roger G3XBM</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_=
quote">On 23 January 2018 at 19:33, Roger Lapthorn <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:rogerlapthorn@gmail.com" target=3D"_blank">rogerlapthorn@gm=
ail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D=
"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D=
"ltr"><div>This evening, I am on 136kHz WSPR RX using my earth-electrode &q=
uot;antenna&quot; instead. The nearby commercial signal is<i> stronger </i>=
on the ground &quot;antenna&quot; than on the vertical.</div><div><br></div=
><div>If you are able to come on 136kHz WSPR this evening it will be intere=
sting to compare the difference. Still using the deaf (at 136kHz) FT817.</d=
iv><div><br></div><div>Incidentally, the schematic of the mag-mounted EFP o=
n the car roof used many years ago is attached. This was used with the FT81=
7 very successfully.</div><div><br></div><div>73s</div><div>Roger G3XBM</di=
v></div>
</blockquote></div><br></div>

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