James thanks for this - being "remote" it difficult to know what is normal -
ie what DCF39 dot 60 would look like within a stable ground wave. I do get
variations in bandwith and the "variable phase return" nature of the signal
would explain why it varies as it does. I shall stop calling it
mpath/doppler....I should have known!!!
This reflector and the technical responses to comments makes for a good
learning curve...
Conditions overnight were noisey - dcf39 nightitme mode has appeared within
2 minutes of each day at around the same level, and was strongly audible at
times last night with the obvious interruptions from lightning and a very
very noisey frog outside my window.
Signal was "up" at 1938 and down this morning 19th at 0411Z. Flat peaks and
slow fades between 2100-0400 with the period 2130-0200 being the strongest
averages for Germany/Ghana. Im going to add another screen with faster res
to see if I can get shorter averaging and a better idea of peaks.
Its just after 0600Z and the birds are singing/sun shining but nothing on
the screen - Im laying bets at which time the D layer will start to act as a
reflector this morning...umm..guessing 0832Z..
No signals detected overnight no matter how much I screw my eyes up.
No running water (mains) at the moment but we do have 200 loo rolls...and a
bottle of spring water or two. Apologies for the typos but Im trying to swat
the mossies and keep on hitting the keys.
Cheers - Laurence plus 35 other staff with Raleigh International Accra
http://www.raleighinternational.org
From: James Moritz <j.r.moritz@herts.ac.uk>
Reply-To: rsgb_lf_group@blacksheep.org
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Ghana test - "Doppler"
Date: Wed, 18 Jun 2003 18:11:22 +0100
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