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Dave/wcb,
Tks for all info, esp the 6dB comp.
What freq separation would suit?
Rog.
----- Original Message -----
Sent: Wednesday, July 25, 2007 7:48 PM
Subject: LF: [ 500]Two GW's Testing... GW4HXO overnight
run
Mike, LF.
Good signals from GW4HXO throughout the night,
with a marked drop in
strength between 0350 and 0420 utc, and reversion to
daytime signal levels
therafter. The propagation showed the same sort of
pattern as GW3UEPs
signals, but Mike seems to be consistently stronger by
around 6 dB
Mike's signals reached a sort of peak at 2330utc, and stayed
at good audible
strength until 0350 utc, with moderate QSB having a two or
three minute
cycle. His signals didn't exatctly "fall off a cliff" after
0350utc, but a
fairly rapid decrease in signal strength occurred, perhaps as
much as 10 dB,
but I'm guessing.
Mike's signals have been visible all
morning [couldn't listen - I was at
work :-((], then stopped abruptly at
about 1410 utc this afternoon.
It would be really interesting to run an
overnight comparison between GW4HXO
and GW3UEP, but at the moment, they're
beaconing at opposite ends of the
band!
I'm also seeing what I assume
to be Finbar clearly on 503.792 at the moment.
Can't make out his call-sign
by ear.
Night and day comparison screenshots of GW4HXO
attached.
73, Dave G3WCB IO91RM
-----Original
Message-----
From: [email protected]
[mailto:[email protected]]On
Behalf Of Dave G3WCB
Sent: 24 July 2007 22:56
To: [email protected]
Subject:
RE: LF: [ 500]; Two GW's Testing... GW4HXO
Dave, LF,
GW4HXO is
quite a bit stronger now, and clearly audible in a 1.74 Khz
bandwidth (Wierd
SPM-30 feature) I'd give him 439 by ear. My background
noise level is sitting
at -74 dBm, and Mike is a dB or two above that.
(About 50 micro-volts at the
RX terminals)
I'm using a 20m long "Tee" at 6m, tuned with a big coil
which is
link-coupled to the RX. It does pick up a lot of SMPSU crud from
nearby
wiring. A loop would be much quieter.
I'll leave ARGO running
overnight to see what happens to the signal levels
around dawn.
73,
Dave G3WCB IO91RM
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On
Behalf Of Dave Sergeant
Sent: 24 July 2007 21:28
To: [email protected]
Subject:
Re: LF: [ 500]; Two GW's Testing... GW4HXO
On 24 Jul 2007 at 20:58,
Dave G3WCB wrote:
> Well.......I'm seeing something on 503.812, and I
might be hearing
> fragments of a call-sign. I'm using a SPM-30 on the
24Hz bandwidth
> setting, and the callsign is a bit too fast.-- Would it
be possible
> to insert a couple of seconds of blank carrier after each
call-sign,
> or alternatively QRS to 5 or 6 WPM?
Still amazed at
the difference in reception between Bracknell and
Iver (the whole of about 10
miles...). Currently hearing (and not
much different from midday here) with
my two ears.....
505.15 DI2BE
569
503.8 GW4HXO 559, very consistent all
day
503.75 G0MRF
599
503.65 G4WGT
579
503.2 GI4PDE traces, was solid
earlier
502.2 G3XIZ in QSO with G3UNT
both 599
501.5 GW3UEP 329
(All
frequencies approximate, difficult to read to 10Hz accuracy when
tuning CW by
ear...).
I can even hear 'HXO and 'WGT under 'MRF's psk in my 400Hz
filter
A couple of CQs from here earlier went unanswered...
73
Dave G3YMC
http://www.davesergeant.com
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