Hi Stefan its a difficult one...... at 0400 UTC only the east of Europe
would be coming into daylight, and a flare would have no effect on the
signals from the west (that would be in shadow to the X-rays and UV.) The
usual source of extra absorption, the Equatorial Ring Current is low at
present, but that doesnt meean something else is at work :-))
Alan
----- Original Message -----
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Sunday, October 31, 2010 3:21 PM
Subject: Re: VLF: QRN
Hi Alan,
Please see the lower window/capture at
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html
The vertical strong lines there (0...4 UTC), may they come from this
flare, strongly affecting the signal levels for some short whiles?
Interesting...
73, Stefan
Am 31.10.2010 12:56, schrieb Alan Melia:
> Hi Jacek, interesting but there is no real cause for absorption at
present,
> and it would not affect groundwave. However there was a flare this morning
> at around 0400 0500z . This would have enhaced the skywave ay 225kHz and
> perhaps lead to destructive interference with the groundwave??
> Alan G3NYK
>
> ----- Original Message -----
> From: "Jacek Lipkowski"<[email protected]>
> To:<[email protected]>
> Sent: Sunday, October 31, 2010 10:26 AM
> Subject: Re: VLF: QRN
>
>
> On Sun, 31 Oct 2010, Stefan Schäfer wrote:
>
>
>> The QRN on the Dreamers Band is as low as never before since i am
>>
> monitoring
>
>> the band. My DFCW-60 window is almost dark in the moment. [...]
>>
> there seems to be increased absorption right now, maybe due to solar
> x-rays. i've just tried to show my daughter how a crystal radio works, and
> can barely receive Warsaw 1 on 225kHz (with active antenna and tuned
> circut). normally i would receive several stations with just a diode and
> low-impedance headphones.
>
> jacek
>
>
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