Message-ID: <4D37360F.6020806@iup.uni-heidelberg.de>
Date: Wed, 19 Jan 2011 20:05:51 +0100
From: =?ISO-8859-2?Q?Stefan_Sch=E4fer?= <schaefer@iup.uni-heidelberg.de>
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To: rsgb_lf_group@blacksheep.org
References: <797ad.4f2d887c.3a671a48@aol.com> <8CD85F794C82497-10B0-AC49@webmail-m001.sysops.aol.com> <4D36FB23.6070607@iup.uni-heidelberg.de> <Pine.LNX.4.64.1101191933280.1022@paranoid.lipkowski.org>
In-Reply-To: <Pine.LNX.4.64.1101191933280.1022@paranoid.lipkowski.org>
Subject: Re: LF: OE5ODL VLF ?
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Hi Jacek,

Well, i am looking on his VLF grabber at http://www.langwelle.at/ If i=20
remember correctly it is in about 10 km distance to him, so in the far=20
field and mostly affected by the groundwave (so less affected by=20
propagation effects). So his signal/ERP could be expressed by the color=20
scale visible there. Today it looks as if he hasn't used the balloon=20
antenna section.
If that distance to F4DTL was done was with the fxed antenna...=20
Impressing! But the QRN is as low as never observed since i am=20
monitoring VLF. In average i estimate 20 dB less than in summer. And the=
=20
times of low QRN is currently about 10 hours and 2...3 hours in summer! :-=
)

73, Stefan/DK7FC

Am 19.01.2011 19:46, schrieb Jacek Lipkowski:
> On Wed, 19 Jan 2011, Stefan Sch=E4fer wrote:
>
>> Yes, just see the grabbers! But the signal seems weak today. Probably=
=20
>> there is wind and no chance for the balloon antenna... I can see him=20
>> in my 6000 window but just about 10 dB weaker than on monday...
>
> or propagation effects.
>
> look at the waterfall for the last 3 days. 3 days ago the noise level=20
> was very strong, and OE5ODL was strong too. today the noise is weak,=20
> and Oswald's signal is very weak too.
>
> of course we don't know if the output current and antenna is the same=20
> every day
>
> jacek
>