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References: <4D68D907.1000005@iup.uni-heidelberg.de> <1298717758.4379.2.camel@gerhard-desktop> <483B525F6C7E42D1B5D226AB3E96611D@White> <C2F279AFADAD4B858DA25EDBCD35FC7B@White> <4D6978CB.3000205@iup.uni-heidelberg.de> <4D69801B.7050907@iup.uni-heidelberg.de> <279103.46669.qm@web28506.mail.ukl.yahoo.com> <4D6A96A5.70804@iup.uni-heidelberg.de> <292024.46473.qm@web28505.mail.ukl.yahoo.com> <4D6AC0FD.8070204@dsl.pipex.com>
Date: Sun, 27 Feb 2011 21:50:20 +0000 (GMT)
From: Chris Osborn <g3xiz@yahoo.co.uk>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <4D6AC0FD.8070204@dsl.pipex.com>
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Subject: Re: VLF: G3XIZ on 8970 Hz
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Hello Chris,
Thanks for looking / listening.
I QRT'd at 21.10 after about 4 and a half hours.
I've finished the MK II loading coil winding and hope to have it working=
by next=20
weekend.
Hopefully you'll pick me up then.
73 Chris XIZ
________________________________
From: Chris Dillon <c.r.dillon@dsl.pipex.com>
To: rsgb_lf_group@blacksheep.org
Sent: Sun, 27 February, 2011 21:24:13
Subject: Re: VLF: G3XIZ on 8970 Hz
Hi Chris - been listening since about 6.30 but unfortunately nothing =
at all=20
from you so far tonight.
73 Chris G3WCD
On 27/02/2011 18:45, Chris Osborn wrote:=20
Hello Stefan,
>
>Thanks for the good wishes and advice.
>Eddie G3ZJO (about 50 km) is looking for my signal.
>
>The aerial current is about 0.15 A and the TX power about 100 =
watts=20
>RF.
>
>I have built an off air frequency standard which is locked to =
=20
>Droitwich (198 kHz)
>It has a 10 kHz output and maybe I can use that in future for =
more=20
>precise frequency generation.
>
>I am presently making a more efficient loading coil which shoul=
d be=20
>ready soon.
>
>73 Chris G3XIZ
>
>
>
>
>
________________________________
From: Stefan Sch=E4fer <schaefer@iup.uni-heidelberg.de>
>To: rsgb_lf_group@blacksheep.org
>Sent: Sun, 27 February, 2011 18:23:33
>Subject: Re: VLF: G3XIZ on 8970 Hz
>
> Hello Chris,=20
>
>I wish you good luck!
>
>What will be your antenna current and what is the current max=
imum TX =20
>power?=20
>
>
>Do you have enough RX stations in a radius of some 100 km?
>
>If you want to do a test in transmitting a 24 hours accurate =
=20
>carrier, i could set up a "60000" window at your frequency.=
But it=20
>only makes sense if your TX is locked to a MSK=20
>transmitter (e.g. GBZ) or GPS. A OCXO or so is dr=
ifting=20
>much to strong for a 47 uHz window.
>
>I see a real chance to see a trace of you if you send a 24 ho=
ur =20
>carrier, locked.
>
>73, Stefan/DK7FC
>
>
>
>Am 27.02.2011 17:14, schrieb Chris Osborn:=20
>Very well done.
>>
>>I have been trying for the past 2 weekends to launch =
my=20
>>balloons or kite aerial but the weather
>>has been unsuitable.
>>
>>Inspired by ops using just their home aerials I shall =
give my=20
>>40m end fed inverted 'L' another try.
>>
>>I shall transmit a constant carrier on
>>
>>8.976 661 7 kHz
>>
>>for the next few hours in the hope that someone will =
pick up=20
>>my signals.
>>
>>At some point I could try a longer period maybe over =
night.
>>
>>73 Chris G3XIZ
>>
>>
>>
>>
________________________________
From: Stefan Sch=E4fer <schaefer@iup.uni-heidelberg.de>
>>To: rsgb_lf_group@blacksheep.org
>>Sent: Sat, 26 February, 2011 22:35:07
>>Subject: Re: VLF: OE5ODL,OE3GHB and DF6NM on 8970=
Hz
>>
>>...now Markus appears at 17 dB SNR in my "DFCW-60000=
"=20
>>window, exactly at 8970.0020 Hz, see=20
>>http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html
>>
>>It is remarkable that all the 3 stations use their =
home=20
>>antenna, no kites or balloons, TX power below 300 W!=
This=20
>>shows what others could do on VL=
F as=20
>>well. My distance to OE3GHB is 590 km!
>>
>>Also it is interesting that 3 QSOs could easily take =
place=20
>>in a bandwidth of 10 mHz :-)
>>
>>It's fun and fascinating, thus not useless :-)
>>
>>73, Stefan/DK7FC
>>
>>
>>Am 26.02.2011 23:03, schrieb Stefan Sch=E4fer:
>>> VLF,
>>>=20
>>> Capture OE5ODL (8970.005 Hz, until 14 UTC), OE3GHB=
(8969.98=20
>>>Hz), DF6NM (from 13 UTC, first drifting, then lock=
to =20
>>>8970.002 Hz) in 424 uHz
>>>=20
>>> 73, Stefan/DK7FC
>>>=20
>>
>>
>>
>
=20
--0-1914926194-1298843420=:81193
Content-Type: text/html; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
<html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></h=
ead><body><div style=3D"font-family:arial,helvetica,sans-serif;font-size:1=
0pt"><div>Hello Chris,<br><br>Thanks for looking / listening.<br>I QRT'd=
at 21.10 after about 4 and a half hours.<br><br>I've finished the MK II=
loading coil winding and hope to have it working by next weekend.<br>Hope=
fully you'll pick me up then.<br><br>73 Chris XIZ<br></div><div style=3D"f=
ont-family: arial,helvetica,sans-serif; font-size: 10pt;"><br><div style=
=3D"font-family: times new roman,new york,times,serif; font-size: 12pt;"><=
font face=3D"Tahoma" size=3D"2"><hr size=3D"1"><b><span style=3D"font-weig=
ht: bold;">From:</span></b> Chris Dillon <c.r.dillon@dsl.pipex.com><=
br><b><span style=3D"font-weight: bold;">To:</span></b> rsgb_lf_group@blac=
ksheep.org<br><b><span style=3D"font-weight: bold;">Sent:</span></b> Sun,=
27 February, 2011 21:24:13<br><b><span style=3D"font-weight: bold;">Subje=
ct:</span></b> Re: VLF: G3XIZ on
8970 Hz<br></font><br>
=20
=20
<title></title>
=20
Hi Chris - been listening since about 6.30 but unfortunately nothing
at all from you so far tonight.<br>
<br>
73 Chris G3WCD<br>
<br>
On 27/02/2011 18:45, Chris Osborn wrote:
<blockquote type=3D"cite">
=20
<div style=3D"font-family: arial,helvetica,sans-serif; font-size: 10=
pt;">
<div>Hello Stefan,<br>
<br>
Thanks for the good wishes and advice.<br>
Eddie G3ZJO (about 50 km) is looking for my signal.<br>
<br>
The aerial current is about 0.15 A and the TX power about 100
watts RF.<br>
<br>
I have built an off air frequency standard which is locked to
Droitwich (198 kHz)<br>
It has a 10 kHz output and maybe I can use that in future for
more precise frequency generation.<br>
<br>
I am presently making a more efficient loading coil which
should be ready soon.<br>
<br>
73 Chris G3XIZ<br>
<br>
</div>
<div style=3D"font-family: arial,helvetica,sans-serif; font-size:=
10pt;"><br>
<div style=3D"font-family: times new roman,new york,times,serif;=
font-size: 12pt;"><font face=3D"Tahoma" size=3D"2">
<hr size=3D"1"><b><span style=3D"font-weight: bold;">From:</=
span></b>
Stefan Sch=E4fer <a rel=3D"nofollow" class=3D"moz-txt-link-r=
fc2396E" ymailto=3D"mailto:schaefer@iup.uni-heidelberg.de" target=3D"_blan=
k" href=3D"mailto:schaefer@iup.uni-heidelberg.de"><schaefer@iup.uni-hei=
delberg.de></a><br>
<b><span style=3D"font-weight: bold;">To:</span></b>
<a rel=3D"nofollow" class=3D"moz-txt-link-abbreviated" ymail=
to=3D"mailto:rsgb_lf_group@blacksheep.org" target=3D"_blank" href=3D"mailt=
o:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a><br>
<b><span style=3D"font-weight: bold;">Sent:</span></b> Sun,
27 February, 2011 18:23:33<br>
<b><span style=3D"font-weight: bold;">Subject:</span></b>
Re: VLF: G3XIZ on 8970 Hz<br>
</font><br>
<title></title>
Hello Chris, <br>
<br>
I wish you good luck!<br>
<br>
What will be your antenna current and what is the current
maximum TX
power? <br>
<br>
Do you have enough RX stations in a radius of some 100 km?<br>
<br>
If you want to do a test in transmitting a 24 hours accurate
carrier, i
could set up a "60000" window at your frequency. But it only
makes
sense if your TX is locked to a MSK transmitter (e.g. GBZ)
or GPS. A
OCXO or so is drifting much to strong for a 47 uHz window.<br>
<br>
I see a real chance to see a trace of you if you send a 24
hour
carrier, locked.<br>
<br>
73, Stefan/DK7FC<br>
<br>
<br>
<br>
Am 27.02.2011 17:14, schrieb Chris Osborn:
<blockquote type=3D"cite">
<div style=3D"font-family: arial,helvetica,sans-serif; font-=
size: 10pt;">
<div>Very well done.<br>
<br>
I have been trying for the past 2 weekends to launch
my balloons or
kite aerial but the weather<br>
has been unsuitable.<br>
<br>
Inspired by ops using just their home aerials I shall
give my 40m end
fed inverted 'L' another try.<br>
<br>
I shall transmit a constant carrier on<br>
<br>
8.976 661 7 kHz<br>
<br>
for the next few hours in the hope that someone will
pick up my signals.<br>
<br>
At some point I could try a longer period maybe over
night.<br>
<br>
73 Chris G3XIZ<br>
</div>
<div style=3D"font-family: arial,helvetica,sans-serif; fon=
t-size: 10pt;"><br>
<div style=3D"font-family: arial,helvetica,sans-serif;=
font-size: 13px;"><font face=3D"Tahoma" size=3D"2">
<hr size=3D"1"><b><span style=3D"font-weight: bold;"=
>From:</span></b>
Stefan Sch=E4fer <a rel=3D"nofollow" class=3D"moz-tx=
t-link-rfc2396E" ymailto=3D"mailto:schaefer@iup.uni-heidelberg.de" target=
=3D"_blank" href=3D"mailto:schaefer@iup.uni-heidelberg.de"><schaefer@iu=
p.uni-heidelberg.de></a><br>
<b><span style=3D"font-weight: bold;">To:</span></b>
<a rel=3D"nofollow" class=3D"moz-txt-link-abbreviate=
d" ymailto=3D"mailto:rsgb_lf_group@blacksheep.org" target=3D"_blank" href=
=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a><=
br>
<b><span style=3D"font-weight: bold;">Sent:</span></=
b>
Sat, 26
February, 2011 22:35:07<br>
<b><span style=3D"font-weight: bold;">Subject:</span=
></b>
Re: VLF:
OE5ODL,OE3GHB and DF6NM on 8970 Hz<br>
</font><br>
...now Markus appears at 17 dB SNR in my
"DFCW-60000" window, exactly
at 8970.0020 Hz, see <a rel=3D"nofollow" target=3D"_bl=
ank" href=3D"http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabb=
er.html">http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.h=
tml</a><br>
<br>
It is remarkable that all the 3 stations use their
home antenna, no
kites or balloons, TX power below 300 W! This shows
what others could
do on VLF as well. My distance to OE3GHB is 590 km!<br=
>
<br>
Also it is interesting that 3 QSOs could easily take
place in a
bandwidth of 10 mHz :-)<br>
<br>
It's fun and fascinating, thus not useless :-)<br>
<br>
73, Stefan/DK7FC<br>
<br>
<br>
Am 26.02.2011 23:03, schrieb Stefan Sch=E4fer:<br>
> VLF,<br>
> <br>
> Capture OE5ODL (8970.005 Hz, until 14 UTC),
OE3GHB (8969.98 Hz),
DF6NM (from 13 UTC, first drifting, then lock to
8970.002 Hz) in 424 uHz<br>
> <br>
> 73, Stefan/DK7FC<br>
> <br>
<br>
</div>
</div>
</div>
<br>
</blockquote>
</div>
</div>
</div>
<br>
</blockquote>
<br>
</div></div>
</div><br>
</body></html>
--0-1914926194-1298843420=:81193--