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Re: LF: TF3HZ

To: <[email protected]>
Subject: Re: LF: TF3HZ
From: "Markus Vester" <[email protected]>
Date: Sun, 20 Nov 2011 19:06:04 +0100
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Mike,
 
interesting. The propagation is probably by daytime D-layer reflection, which typically exhibits a flat maximum at noon time. This is conspicuouis eg. on the DCF / HGA plots from 4X and YO, and on Eu Loran-C signals as well. On the sea path between G and TF, this may be augmented by a groundwave component with relatively little attenuation.
 
BTW Stefan's strong DFCW signal is producing an unusual modulation effect on Halldór's grabber, as both the background noise and all other signals seem to brighten up during the dashes. Just like a kind of negative AGC...
 
Best 73,
Markus (DF6NM)

 
Sent: Sunday, November 20, 2011 5:41 PM
Subject: LF: TF3HZ

I was amazed to be received well on TF3HZ's grabber over a daylight
path from 1500 UTC today.

Mike, G3XDV
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