Date: Thu, 03 Nov 2011 20:55:35 +0100
From: Steinar Aanesland <saanes@broadpark.no>
In-reply-to: <4EB04EAD.6000506@iup.uni-heidelberg.de>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Transmission on 8,97khz in the near future?
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hi Stefan

It's my environment is probably to nosy , especially around 8khz . Ta=
ke
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 Sch=E4fer 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. Thi=
s
> 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 w=
as
> no suitable wind since many weeks. It has to be on a weekend, so th=
at
> 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 anyth=
ing
> 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 kH=
z
> or so, as seen on almost any VLF grabbers. This helps to identify y=
our
> 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 futur=
e?
>> I have made me an active E-field antenna
>> (https://sites.google.com/site/sub9khz/antennas/e_field_DK7FC.jpg?=
attredirects=3D0)
>>
>> and it could be very interesting to see how well it works .
>>
>> la5vna Steinar
>>
>>
>>
>>   =20
>
>
>