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Dear Rog,
Yes, please send the mp3 - that would be
interesting to listen to. The noise level here is a few dB higher in the E-W
direction on the loop than it is N-S. Mal's signal is about 9 - 10uV/m
here, usually around 20dB above the noise in a 300Hz bandwidth -
all other things being equal, I would at least expect to see GW4HXO on the
spectrogram, but there is no trace at the moment here.
Cheers, Jim Moritz
73 de M0BMU
----- Original Message -----
Sent: Tuesday, July 24, 2007 3:24
PM
Subject: Re: LF: [ 500]; Two GW's
Testing...
Jim,
Re day-time land-path cw sigs; they are there
but the limiting factor is site noise-levels.
I have solid/steady copy of kev but with little
noise-margin - a few dBs of noise would kill it.
Also, fluctuating noise-levels can give the
impression of qsb on weak sigs.
I have an mp3 [280k] recording of mal/chris at
10am, if you're interested? [~240mls].
73, Rog.
----- Original Message -----
Sent: Tuesday, July 24, 2007 12:57 PM
Subject: Re: LF: [ 500]; Two GW's Testing...
Dear Mike, LF Group,
No sign of your signal here in
IO91VR north of London yet. I was watching my
own beacon signal on GM4SLV's
handy screen grabber overnight. There was
pretty consistent reception
without much fading while the path was in
darkness, and nothing at all in
daylight. I have not heard anything much
over 2-300km during the day time
here; to me it really seems that the ground
wave signal levels "fall off a
cliff" much beyond that over land, although
the fact that GM4SLV, G3KEV and
other stations near the coast can hear each
other during daylight seems to
confirm substantially greater ground-wave
range over the sea. All the DX
reports on my beacon signals so far have been
during darkness; and the
distant signals I have heard have been then too, so
it looks like the
ionosphere is only really cooperating at night.Any
possibility of operating
your beacon after dark would be welcome here - the
503.8 frequency is fine
by me!
Cheers, Jim Moritz
73 de M0BMU
----- Original Message
-----
From: "Michael Probert" <[email protected]>
To:
<[email protected]>
Sent:
Tuesday, July 24, 2007 10:26 AM
Subject: RE: LF: [ 500]; Two GW's
Testing...
> Beacon on 503.8 now @ 10.25 BST. Is this frequency
clear?
> Hope that helps
> 73
> Mike
GW4HXO
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