Message-ID: <4F789334.1080800@iup.uni-heidelberg.de>
Date: Sun, 01 Apr 2012 19:41:08 +0200
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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References: <8CEDDE7C797C0FB-1AAC-F23D@webmail-d101.sysops.aol.com> <4F77FA63.1060009@freenet.de>
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Subject: Re: ULF: 11.6 =?UTF-8?B?wrVIeiB0cmFuc21pc3Npb24=?=
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Hi Wolf,

Am 01.04.2012 08:49, schrieb wolf_dl4yhf:
> Hello Markus and group,
>
> I will certainly look out for the signal. Only have to modify the=20
> soundcard's input coupling capacitor a tiny bit, guess I must connect=20
> a second capacitor in parallel. But sure there is something suitable=20
> in the junk-box.
If not, try one of these:   http://www.wima.com/DE/supercap_c60.htm

73, Stefan/DK7FC



> Are you, by chance, using a modified OAM antenna for transmission as=20
> used by the German Navy near the danish border (see Peter's article).=20
> If so, is the inner circle's rotation frequency equal to the transmit=20
> frequency ?
>
> Good luck and all the best,
>   Wolf .
>
>
>
> Am 01.04.2012 08:28, schrieb Markus Vester:
>> Dear LF,
>> in a joint project including a number of radio amateurs, our group is=20
>> working on a large experimental earth-antenna system, which is able=20
>> to radiate an ultra-low frequency signal at low power.
>> We are currently transmitting an unmodulated test carrier on 11.60576=20
>> =C2=B5Hz, and (according to our measurements) are achieving a radiated=
=20
>> power of 16 microwatts. Frequency stability is on the order of 1e-8,=20
>> which should enable narrow bandwidth observations with high sensitivit=
y.
>> The transmission has been on air for a while. Any reception reports=20
>> (especially of far-field detections) would be much appreciated.
>> Best 73,
>> Markus (DF6NM)
>

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Hi Wolf,<br>
<br>
Am 01.04.2012 08:49, schrieb wolf_dl4yhf:
<blockquote cite=3D"mid:4F77FA63.1060009@freenet.de" type=3D"cite">
  <meta content=3D"text/html; charset=3DUTF-8" http-equiv=3D"Content-Type=
">
Hello Markus and group,<br>
  <br>
I will certainly look out for the signal. Only have to modify the
soundcard's input coupling capacitor a tiny bit, guess I must connect a
second capacitor in parallel. But sure there is something suitable in
the junk-box. <br>
</blockquote>
If not, try one of these:=C2=A0=C2=A0 <a class=3D"moz-txt-link-freetext" =
href=3D"http://www.wima.com/DE/supercap_c60.htm">http://www.wima.com/DE/s=
upercap_c60.htm</a><br>
<br>
73, Stefan/DK7FC<br>
<br>
<br>
<br>
<blockquote cite=3D"mid:4F77FA63.1060009@freenet.de" type=3D"cite"> Are
you, by chance, using a modified OAM antenna for transmission as used
by the German Navy near the danish border (see Peter's article). If so,
is the inner circle's rotation frequency equal to the transmit
frequency ?<br>
  <br>
Good luck and all the best,<br>
=C2=A0 Wolf .<br>
  <br>
  <br>
  <br>
Am 01.04.2012 08:28, schrieb Markus Vester:
  <blockquote
 cite=3D"mid:8CEDDE7C797C0FB-1AAC-F23D@webmail-d101.sysops.aol.com"
 type=3D"cite"><font color=3D"black" face=3D"arial" size=3D"2">
    <div>Dear LF,</div>
    <div>=C2=A0</div>
    <div>in a joint project including a number of radio amateurs, our
group is working on a large experimental earth-antenna system, which is
able to radiate an ultra-low frequency signal at low power. </div>
    <div>=C2=A0</div>
    <div>We are currently transmitting an unmodulated test carrier on
11.60576 =C2=B5Hz, and (according to our measurements) are achieving a
radiated power of 16 microwatts. Frequency stability is on the order of
1e-8, which should enable narrow bandwidth observations with high
sensitivity.</div>
    <div>=C2=A0</div>
    <div>The transmission has been on air for a while. Any reception
reports (especially of far-field detections) would be much appreciated.</=
div>
    <div>=C2=A0</div>
    <div>Best 73,<br>
    </div>
    <div>Markus (DF6NM)<br>
    </div>
    </font> </blockquote>
  <br>
</blockquote>
</body>
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