Hello Marcus, thanks!
No, phases of signals from antennas it is summarized "as is", any selection of
phases doesn't become. Therefore, probably, there is no cardioid chart.
Besides, the signal from the MiniWhip is slightly stronger, than from a loop.
But it is very simple in constructive realization :) It was "improvisation",
originally I planned to use only a loop but as I with itself had also MiniWhip,
I thought "Why not to try to put signals from these two antennas?"
Hmmm...
In the FFT settings I set the central frequency 5755 Hz. Whether it is enough
for correct work of SpecLab?
73 de rn3aus/Alex
Понедельник, 4 августа 2014, 21:29 +02:00 от "Markus Vester"
<[email protected]>:
>
> Hi Alex,
>
> nice grabber, and also a great website with
> interesting explanations and pictures. One I especially like
> is http://rn3aus.narod.ru/VLF/vlf-wide-capt51-selfad.bmp , a spectrogram
> reminiscent of high storm
> clouds above an open landscape before nightfall.
>
> >> LoopLNA and MiniWhip are powered
> in parallel via coax-cable. Also signals are combined very simple by
> T-connector
> When adding the two antennas, have you somehow set
> up relative phases and amplitudes to create a cardioid directional
> pattern?
>
> I am wondering whether the 424
> uHz spectrogram is really centered on 5755 Hz, or actually
> on the third harmonic frequency (17265 Hz)?
>
> Thanks for sharing the fine
> work!
>
> 73, Markus (DF6NM)
>
>
> From: Alex K
> Sent: Monday, August 04, 2014 7:12 PM
> To: [email protected]
> Subject: LF: VLF grabber in KO85HA is started again
>
> Hello Stefan, VLF!
> My VLF-grabber in KO85HA now
> is agn ON. http://rn3aus.narod.ru/VLF/index.html
> QRSS-6000
> window is centered on 5755 Hz.
> Grabber will be online to
> 16.08.2014.
> Welcome!
>
> PS And also my congratulations to Stefan with
> nice new RX Site! :)
> 73 de rn3aus/Alex
>
> Четверг, 17 июля 2014,
> 21:58 +02:00 от DK7FC < [email protected] >:
> > I
> intend to run a new "3HD" Experiment on 5.755 kHz. Maybe you can find
> >
> something in the 424 µHz window. I'll come back to you with a personal
> >
> email in some days.
> >
> > 73, GL, Stefan
> >
> > Am
> 17.07.2014 21:51, schrieb Alex K:
> > > Hello Stefan,
> > > The
> grabber will be ON abt from 04 to 08 August - my 2 part of holiday :)
> >
> > Now 1/2 part of holiday is ended and I'v leave grabber location :(
> Sorry!
> > > 73 de rn3aus
> > >
--
Alex RN3AUS
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