Date: Sun, 29 Oct 2017 18:55:22 -0230 (NDT)
From: jcraig@mun.ca
To: rsgb_lf_group@blacksheep.org
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Message-ID: <Pine.LNX.4.64.1710291833570.23786@plato.ucs.mun.ca>
References: <15f68ccfd03-c09-1dcf0@webjas-vaa134.srv.aolmail.net>
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Subject: Re: VLF: VO1NA in Todmorden on 8270 Hz - also in Amberg?
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Yesterday I raised the far end of the low RL in an effort to get the
voltage and inductance down and the ERP up, but instead managed only to
fry a coil.  I'll keep the carrier on and think about the next steps such
as using phase feedback and building better coils.  In the mean time I'm
grateful for the reports and discussion.   There are many interesting
things to try with SL and lexan and copper and halyards on a tower.

Paul mentioned 2.4 and 1.6 electrons on the E probe last spring.
Are these numbers  per photon?

73
Joe VO1NA

On Sun, 29 Oct 2017, Markus Vester wrote:

> Yes Stefan I agree, the small peaks are no more than a vague indication a=
nd not yet near a proof of reception. Hope they are anyway encouraging.
>
> Joe are you now using the higher antenna, or perhaps both in parallel? Em=
ploying phase feedback from a local E-field probe will make the transmitted=
 phase repeatable, even with modifications to the antenna or matching circu=
it.
>
> I'm afraid 16K25 may be too hard for my computer.
>
> Best 73,
> Markus
>
> PS: What is the quantum efficiency of Paul's antenna, how many photons ar=
e needed to drive one electron?
>
>
> -----Urspr=C3=BCngliche Mitteilung-----
> Von: DK7FC <selberdenken@posteo.de>
> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
> Verschickt: So, 29. Okt 2017 16:24
> Betreff: Re: VLF: VO1NA in Todmorden on 8270 Hz - also in Amberg?
>
>
>
>
> Hm, we need evidence for claiming such distances i find. From my spectrog=
ram i can see no clear trace on the exact frequency.
> I'm running another spectrogram in the background, not displayed on the g=
rabber but now in the attachment. It runs at 24 uHz. But even there i can s=
ee no clear trace.
> I thought about stacking carrier transmissions and try to get EbNaut '*' =
messages in 16K25A or so, but not yet tried...
> When the phase changes between the different days it gets difficult...
> But i think decoding a 5 character message is certainly realistic in 3...=
6 days, if the phase is stable...
>
> 73, GL, Stefan
>
> Am 29.10.2017 10:54, schrieb Markus Vester:
>
>
> Joe, VLF,
>
> it looks like VO1NA might have made it into Germany.
>
> The DL0AO earth-antenna in Amberg shows small peaks both in 31.4 and 9.3 =
uHz (attached. Note that the 30 hours of the narrower FFT have only been pa=
rtially filled last night). Also the 47 uHz spectrogram from Stefan's tree =
in Heidelberg may have picked up some energy on 8720.0075 Hz.
>
> http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm
> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
>
> Best 73,
> Markus (DF6NM)
>
> -----Urspr=C3=BCngliche Mitteilung-----
> Von: jcraig <jcraig@mun.ca>
> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
> Verschickt: Sa, 28. Okt 2017 21:12
> Betreff: Re: VLF: VO1NA in Todmorden on 8270 Hz - also in Amberg?
>
>
> Hi VLF,
>
> There was a phase glitch at 1700-1800 ut today. It was a nice day for
> aerial work and so hopefully the ERP has improved a bit on 8.2700075 kHz.
> It is hoped to launch a few hundred billion VLF photons farther
> east for Stefan and Markus in particular.
>
> 73
> Joe VO1NA
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