Interesting Laurence
I connected with you at 1500 local EST. With the sound card in use I was
unablr to quickly
shift to the correct audio input and was using my EchoLink mike and
watched as you tuned around the band. I was in Full band mode but looked
like you were using 5/600 hz as the offset and was able to copy WWVH at
60 Khz. That was audio coupled through the mike and had good copy . This
may be a promising method
to allow people to see their signal at DX distance. It was very
interesting to look as you were tuning around
nice quiet location you have
Bob K3DJC
On Tue, 18 Feb 2003 09:05:53 -0900 "Laurence J Howell"
<[email protected]> writes:
European overnight signals were mixed with fast and deep QSB - DCF39
peaked
at 0400Z for about 30 minutes (!) at S6 then dived into the noise by
0520Z,
not recovering by European dawn. Southern LF Bcast stations were
very
poor, and even the Northern Norwegian on 152/180Khz were down with
fast QSB
(say 1 second period S9 to S3 type)
The data sig beacon DCF39 this morning 1500-1600Z is "seeable on
Argo "
but not "audible by ear".
The feedback on Argo from Fabian et al is more than true. QOS of the
signal
is probably not defined in phase/jitter or freq and probably
nothing like
needed to fully utilize ARGO on the higher QRSS settings, but,
being one
to try anything Ive connected the output of the 870 to Echolink and
am in
conference with myself as KL1X -
You should be able to join by clicking onto KL1X via the Echolink
server -
up to 9 people theoretically!
So.the audio coming out of the speaker ...137.0 =0hz 138.0 =
1Khz and
DCF38 will be heard as a 1.83 Khz tone (thats if Echolink/board
passes
1.83Khz) - if nothing else if you can hear the data sig you know the
path
is somewhat open. This is truly a walk in the shack and out of the
door
test this morning - I dont know whether the remote echolink server
will
time me out eventually, and I havent had time to plug in a sig genny
and
see what really comes back freq/phase wise - I used Echoaudio test
site
and confirmed the audio was coming back (as has Martin G4FKK -
thanks)
The antennae is connected and Ill keep echolink up till either Im
working
on the system (people up the tower today sometime), but will try to
leave
Echolink link up with a message of whats happening at the "connect
screen".
I added another loading wire to the antennae yesterday afternoon
and
evening/night in a snow storm. The Antennae is now a 2 wire (6 ft
separation using spreaders) Inverted U with 90 ft verticals at each
end and
about a 50 meter "top" - the second wire reduced the inductance
required
further and probably a bit of loss (maybe). If all was correct Ive
added
about 0.5-0.8 dB on s/n on DCF39. - every little helps.
Laurence KL1X BP41
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