Date: Sat, 15 Apr 2017 07:12:32 -0400
From: Markus Vester <markusvester@aol.com>
To: rsgb_lf_group@blacksheep.org
Message-Id: <15b71507e5b-46ba-1eb67@webprd-a03.mail.aol.com>
In-Reply-To: <855a44fe-3818-3641-ea48-aa123516a602@abelian.org>
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Subject: Re: VLF: Carrier on 6470.005 Hz - and 6469.9975 Hz
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Thanks again Paul! Using 0.21 A cutrrent into 8 m effective height, my radi=
ated power should have been 2.1 uW EMRP (or 3.8 uW dipole-referenced ERP).=
=20

Note that though the phase is reproducable, it still is not absolute as I h=
ave not attempted to calibrate the near-field pickup probe. I am actually u=
sing my normal VLF receive antenna, with two transformers and an amplifier =
which may even be partially saturated. For the same reason, the 150=C2=B0 p=
hase difference to Stefan's signal cannot be directly related to geometrica=
l path difference.

Best 73,
Markus      =20


-----Urspr=C3=BCngliche Mitteilung-----=20
Von: Paul Nicholson <vlf0403@abelian.org>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 15. Apr 2017 9:44
Betreff: Re: VLF: Carrier on 6470.005 Hz - and 6469.9975 Hz


Markus wrote:

 > My carrier was on air from 13:30 until 20:35 UT.

Averaged 0.06 fT, S/N 13.0 dB in 39.7 uHz, phase -88.6 degrees.

Not bad for 1028 km at 6470 Hz, and I suppose about 5 or 10uW ERP?

Here is 4 hours of Stefan's signal yesterday

http://abelian.org/vlf/tmp/170414a.png

--
Paul Nicholson
--
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<div style=3D"font-size:10pt;font-family:arial,helvetica,sans-serif;color:b=
lack;"><div style=3D"color: black; font-family: arial,helvetica,sans-serif;=
 font-size: 10pt;">Thanks again Paul! Using 0.21 A cutrrent into 8 m effect=
ive height,&nbsp;my radiated power should have been 2.1 uW EMRP (or 3.8 uW =
dipole-referenced ERP). <br><br>Note that though the phase is reproducable,=
 it still is not absolute as I have not attempted to&nbsp;calibrate the nea=
r-field pickup probe. I am actually using&nbsp;my normal VLF receive antenn=
a, with two transformers and an amplifier which may even be partially satur=
ated.&nbsp;For the same reason, the&nbsp;150=C2=B0 phase difference to Stef=
an's signal cannot be directly related to geometrical path difference.<br><=
br>Best 73,<br>Markus&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br><br><br>=
-----Urspr=C3=BCngliche Mitteilung----- <br>Von: Paul Nicholson &lt;vlf0403=
@abelian.org&gt;<br>An: rsgb_lf_group &lt;rsgb_lf_group@blacksheep.org&gt;<=
br>Verschickt: Sa, 15. Apr 2017 9:44<br>Betreff: Re: VLF: Carrier on 6470.0=
05 Hz - and 6469.9975 Hz<br><br></div><br>Markus wrote:<br><br> &gt; My car=
rier was on air from 13:30 until 20:35 UT.<br><br>Averaged 0.06 fT,  S/N 13=
.0 dB in 39.7 uHz,  phase -88.6 degrees.<br><br>Not bad for 1028 km at 6470=
 Hz, and I suppose about 5 or 10uW ERP?<br><br>Here is 4 hours of Stefan's =
signal yesterday<br><br>  <a href=3D"http://abelian.org/vlf/tmp/170414a.png=
" target=3D"_blank">http://abelian.org/vlf/tmp/170414a.png</a><br><br>--<br=
>Paul Nicholson<br>--<br><br></div>
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