LF: Re: interesting LF propagation

To:	<[email protected]>
Subject:	LF: Re: interesting LF propagation
From:	"Alan Melia" <[email protected]>
Date:	Thu, 7 Oct 2010 23:20:02 +0100
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Hi Stefan, yes this will happen ....look at the wavelength of 136 and it is
about 2.2km it does not take much vertical movement of the night-time
"reflection layer" to sweep through a full phase cycle and the extinction
where the ground and sky cancle with be different for you and Markus.
Locations varying by as little as 10km often see this effect. Mike has quite
a big signal.

Alan G3NYK


----- Original Message ----- 
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Thursday, October 07, 2010 9:11 PM
Subject: LF: interesting LF propagation


> I just saw that Mike/G3XDV appears very much stronger on my grabber
> _after_ 19 UTC while he is much stronger _before_ 19 UTC on the DF6NM
> grabber and almost invisible after 19 UTC. The difference of distance
> between Markus and me is about 180 km. QRN is not the reason but the
> signal strengh itselfe.
>
>
>
>
> I assume this effect is not been observed the first time ;-)
>
> The two dots apper strong on both locations. So it was a 'dip'?
>
>
>
> 73, Stefan
>


----------------------------------------------------------------------------
----


> I just saw that Mike/G3XDV appears very much stronger on my grabber after
19 UTC while he is much stronger before 19 UTC on the DF6NM grabber and
almost invisible after 19 UTC. The difference of distance between Markus and
me is about 180 km. QRN is not the reason but the signal strengh itselfe.
>
>
>
>
> I assume this effect is not been observed the first time ;-)
>
> The two dots apper strong on both locations. So it was a 'dip'?
>
>
>
> 73, Stefan
>

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