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Re: LF: RA3YO - HELL

from [Markus Vester] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: RA3YO - HELL
From: "Markus Vester" <[email protected]>
Date: Sat, 18 Jan 2014 09:57:09 +0100
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Hi Rik,
 
that's surely from ionospheric crossmodulation, aka Luxembourg effect. http://dl.dropboxusercontent.com/u/26404526/LF/test1401171930.jpg is a faster wideband screenshot of the time. On the right side, you can see several horiziontal strips, caused by tonal modulation on some strong broadcast transmitter (eg. 207, 225 or 270 kHz). The modulation was imprinted on DCF39 (LSB below 138.83 kHz, purple) and HGA22 (USB above 135.43, red). Around 19:28, someone happened to be singing a slightly instable C6 note around 1054 Hz...
 
Best 73,
Markus (DF6NM)

Sent: Saturday, January 18, 2014 8:40 AM
Subject: RE: LF: RA3YO - HELL

It is visible at Stefans screenshot too, so not local?

 

73, Rik  ON7yd - OR7T

 

Van: Rik Strobbe
Verzonden: zaterdag 18 januari 2014 8:38
Aan: [email protected]
Onderwerp: RE: LF: RA3YO - HELL

Hi Marcus,

 

what is the is the strange vertical 'structure' at the end of the call?

I would say local QRN, but it is twice as wide at the bottom as at the top.

 

73, Rik  ON7YD - OR7T

 

Van: [email protected] [[email protected]] namens Markus Vester [[email protected]]
Verzonden: zaterdag 18 januari 2014 1:15
Aan: [email protected]
Onderwerp: Re: LF: RA3YO - HELL

 
All the best,
Markus (DF6NM)
 
----- Original Message -----
Sent: Saturday, January 18, 2014 12:53 AM
Subject: Re: LF: RA3YO - HELL

Hi Terry, Dmitry,

Oh yes, same here, attached.

73, Stefan/DK7FC

Am 18.01.2014 00:25, schrieb Terry GW0EZY:
> Nice HELL image from RA3YO.
>
> 73 Terry
>
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