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Date: Mon, 08 Apr 2002 14:28:34 +0100
To: rsgb_lf_group@blacksheep.org
From: "James Moritz" <j.r.moritz@herts.ac.uk>
Subject: Re: LF: Giulio  re Horzontal wires
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Dear LF Group,

I would agree with Alan - just about any DX station seems to be subject to 
fading, more so at night but definitely also sometimes during the day. I 
have noticed deep fading on signals from quite short distances - DCF39 
often fades 20-30dB, also amateur stations over quite short distances such 
as PA, ON, and even the more distant UK stations like G3KEV. I had a QSO 
last night with PA3CPM, who faded from 569 to inaudible and back to 569 
again over a period of about 10 minutes.

The fact that daytime signal levels do vary significantly would seem to 
prove there must be some kind of ionospheric propagation during daylight - 
I imagine fading at moderate distances could be due to the interaction of 
ground wave and sky wave, as the MF broadcasters try so hard  to avoid.

Cheers, Jim Moritz
73 de M0BMU