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Message-ID: <51D5FB21.6030301@iup.uni-heidelberg.de>
Date: Fri, 05 Jul 2013 00:45:53 +0200
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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Subject: Re: LF: F6CNI : RX test on LF using a 2 ground rods antenna.
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Hi Andre,

I just sent out a few WSPR-2 sequences for you. A single WSPR-15=20
sequence is following at 22:45 UTC.
The SNR reported by you is up to 0 dB so the antenna seems to work quite=20
well :-)

It would be interesting to have 2 identical orthogonal earth antennas=20
where one of them points to me with its null. Then we could compare the=20
SNR and may get some ideas about the directivity...

73, Stefan/DK7FC

Am 04.07.2013 19:15, schrieb Andre Guy=C3=A9:
> Just for info :
> My PC is a very low cost HP model G5401 without extra sound or video ca=
rd.
> With OP 8, OP 32, WSPR 2, WSPR 15, Spectran ans some others programs=20
> running, the CPU using is only 6 %. Not too bad indeed !
> You can see the nice trace coming from PA0WMR ! See the eyes of my dog=20
> who is also looking at...
> Andy F6CNI.
>
> *From:* Andre Guy=C3=A9 <mailto:andre.guye1@aliceadsl.fr>
> *Sent:* Thursday, July 04, 2013 6:43 PM
> *To:* rsgb_lf_group@blacksheep.org <mailto:rsgb_lf_group@blacksheep.org=
>
> *Subject:* LF: F6CNI : RX test on LF using a 2 ground rods antenna.
> Hello to all.
> To night I=E2=80=99ll test for receiving a 2 ground rods antenna on 136=
 USB,=20
> modes : OP 8, OP 32, WSPR 2 and WSPR 15, all at the same time.
> Distance between the two rods : 35 meters. Each rod : 50 mm diameter=20
> aluminium tube, 2 meters long.
> A low power test permits to tune the antenna to 50 Ohms. It needs an L=20
> network with a 275 =C2=B5H serial coil and a 4.7 nF in parallel on the=20
> antenna side.
> Bi directional receiving antenna azimuth : UK / VE one side and I / SV=20
> on the other side.
> No preamplifier is necessary. RX is an IC7200.
> Hope to copy you !
> 73 from Andy F6CNI. JN19QB.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content=3D"text/html; charset=3DUTF-8" http-equiv=3D"Content-Type=
">
</head>
<body bgcolor=3D"#ffffff" text=3D"#000000">
Hi Andre, <br>
<br>
I just sent out a few WSPR-2 sequences for you. A single WSPR-15
sequence is following at 22:45 UTC. <br>
The SNR reported by you is up to 0 dB so the antenna seems to work
quite well :-)<br>
<br>
It would be interesting to have 2 identical orthogonal earth antennas
where one of them points to me with its null. Then we could compare the
SNR and may get some ideas about the directivity...<br>
<br>
73, Stefan/DK7FC<br>
<br>
Am 04.07.2013 19:15, schrieb Andre Guy=C3=A9:
<blockquote cite=3D"mid:C9E32A3F35E24BAC8324E29E82608BDB@F6CNIAndyHP"
 type=3D"cite">
  <div dir=3D"ltr">
  <div
 style=3D"font-size: 12pt; font-family: 'Calibri'; color: rgb(0, 0, 0);">
  <div>Just for info :</div>
  <div>=C2=A0</div>
  <div>My PC is a very low cost HP model G5401 without extra sound or
video card.</div>
  <div>=C2=A0</div>
  <div>With <font face=3D"Arial">OP 8, OP 32, WSPR 2, WSPR 15, Spectran
ans some others programs running, the CPU using is only 6 %. Not too
bad indeed !</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">You can see the nice trace coming from PA0WMR
! See the eyes of my dog who is also looking at...</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">Andy F6CNI.</font></div>
  <div>=C2=A0</div>
  <div><br>
  </div>
  <div
 style=3D"font-size: small; font-family: 'Calibri'; font-weight: normal; =
color: rgb(0, 0, 0); font-style: normal; text-decoration: none; display: =
inline;">
  <div
 style=3D"font-family: tahoma; font-style: normal; font-variant: normal; =
font-weight: normal; font-size: 10pt; line-height: normal; font-size-adju=
st: none; font-stretch: normal; -x-system-font: none;">
  <div>=C2=A0</div>
  <div
 style=3D"background: rgb(245, 245, 245) none repeat scroll 0% 0%; -moz-b=
ackground-clip: border; -moz-background-origin: padding; -moz-background-=
inline-policy: continuous;">
  <div style=3D""><b>From:</b> <a moz-do-not-send=3D"true"
 title=3D"andre.guye1@aliceadsl.fr" href=3D"mailto:andre.guye1@aliceadsl.=
fr">Andre
Guy=C3=A9</a> </div>
  <div><b>Sent:</b> Thursday, July 04, 2013 6:43 PM</div>
  <div><b>To:</b> <a moz-do-not-send=3D"true"
 title=3D"rsgb_lf_group@blacksheep.org"
 href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.or=
g</a>
  </div>
  <div><b>Subject:</b> LF: F6CNI : RX test on LF using a 2 ground rods
antenna.</div>
  </div>
  </div>
  <div>=C2=A0</div>
  </div>
  <div
 style=3D"font-size: small; font-family: 'Calibri'; font-weight: normal; =
color: rgb(0, 0, 0); font-style: normal; text-decoration: none; display: =
inline;">
  <div dir=3D"ltr">
  <div
 style=3D"font-size: 12pt; font-family: 'Calibri'; color: rgb(0, 0, 0);">
  <div>=C2=A0</div>
  <div><font face=3D"Arial">Hello to all. </font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">To night I=E2=80=99ll test for receiving a 2 =
ground
rods antenna on 136 USB, modes : OP 8, OP 32, WSPR 2 and WSPR 15, all
at the same time.</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">Distance between the two rods : 35 meters.
Each rod : 50 mm diameter aluminium tube, 2 meters long.</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">A low power test permits to tune the antenna
to 50 Ohms. It needs an L network with a 275 =C2=B5H serial coil and a 4.=
7
nF in parallel on the antenna side.</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">Bi directional receiving antenna azimuth : UK
/ VE one side and I / SV on the other side.</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">No preamplifier is necessary. RX is an IC7200=
.</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">Hope to copy you !</font></div>
  <div>=C2=A0</div>
  <div><font face=3D"Arial">73 from Andy F6CNI. JN19QB.</font></div>
  <div>=C2=A0</div>
  <div>=C2=A0</div>
  <div>=C2=A0</div>
  </div>
  </div>
  </div>
  </div>
  </div>
</blockquote>
</body>
</html>

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