Hello Steinar,
Unfortunately the link doesn't work here. Can you send me a link to a
screenshot?
Would be interesting to see what you can see on a wideband screen.
The wind situation looks a bad as in the last weeks, so no kite
experiment but i will carry the coil here to the fixed antenna for a
QRPPP test. It's all to long ago i find.
73, Stefan/DK7FC
Am 03.11.2011 20:55, schrieb Steinar Aanesland:
hi Stefan
It's my environment is probably to nosy , especially around 8khz . Take
a look at my grabber.
My E-field antenna is about 10m from my house.
http://80.202.132.143:8081/
la5vna S
On 01.11.2011 20:55, Stefan Schäfer wrote:
Hello Steinar,
A few hours ago i wrote an email to some VLF grabber runners. There i
announced further tests on my fixed antenna here in Heidelberg. This
antenna performs well on LF but on VLF the signals are rather poor.
Anyway, the QRN is as low as never seen here in the last days so i
actually think there could be a chance to see my signal.
A next kite experiment is planned as well but unfortunately there was
no suitable wind since many weeks. It has to be on a weekend, so that
many stations find so time to view... I'll keep an eye on the wind
forecast. The experiments on the fixed antenna here are independent of
wind of course but the signal will be at least 30 dB lower!
You have to have a good prepared SpecLab configuration to see anything
at all. Something like "DFCW-6000" is needed for the fixed antenna and
our distance.
It would be interesting to see some "wideband" screenshots from you
before we start, i.e. a plot over several hours, covering 0...24 kHz
or so, as seen on almost any VLF grabbers. This helps to identify your
noise and sensitivity situation. Can you publish such a spectrogram here?
If you need further advice, just ask.
So, maybe next week i will do a test here on the fixed antenna,
radiating about 50 uW ERP.
73, Stefan/DK7FC
PS: Lubos/OK2BVG, when will you be on air again?
Am 01.11.2011 20:31, schrieb Steinar Aanesland:
Hi all,
Is there any plans for a transmission on 8,97khz in the near future?
I have made me an active E-field antenna
(https://sites.google.com/site/sub9khz/antennas/e_field_DK7FC.jpg?attredirects=0)
and it could be very interesting to see how well it works .
la5vna Steinar
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