Am 07.08.2012 01:57, schrieb Graham:
Interesting Stefan,
Is it possible for Venezuela to monitor Op tests ?
Yes it is. Martin is a digimode man but spent a lot of work in his
antenna system and grabber. OP will be possible but not without SpecLab
and a second soundcard or that virtual audio cable software.
BTW can somebody give some useful informations about that software? So
far i'm using 2 soundcards to receive the output of one SpecLab
instance in another (or in Opera).
So far there is no chance for me to leave a trace in the EU60 grabber
window at YV7MAE. So there is no chance for OP32. Hopefully the
situation will improve soon so that many EU amateurs can leave a trace
there.
He has now built a very large loop and set it on the top of the shack.
Maybe not the best location but it is so big that it doesn't find a
place in the garden, hi. I asked him if i can publish a photo...
OP8 is doing a good job at the moment ?
Not better than yesterday ;-)
I have been decoded in 4X which is the best distance for me so far. But
i think copies to VO1NA or UA4WPF should be no problem as well.
static should not be a problem as the impulse time V tx
pulse is very short , , but as you say, with a raised noise
floor , the s/n decrease ?
Ehm, yes. If the "next" pulse starts before the "fiirst" one is
finished, and so on, then it is a never ending impulse. Oh dear, not a
very proffessional explanation but you know what i mean. If the average
noise floor due to QRN rises, then the S/N decreases of course...
Looking at the PSK map, all the 136 monitors are roughly
the same distance ?
??? You can see that DF2JP is in 245 km distance and 4X1RF is in 2848
km distance...
are there stations located at the next skip ?
May be answered by Alan Melia. I think 4X1RF and TF3HZ is still one
hop. UA4WPF will probably be a 2 hop distance.
'We' need someone who could code a simple data base ,
to store the decode -data , at the moment everything is being
lost , the adif facility on the psk-map, seems not to be
functioning as advertised , but with the map , all 'we' need is
a simple searchable data base , Jose has the server running now,
supporting Ros and Op mode's interims of chat , distance etc ...
Any ideas .... ?
It would be nice to have a complete overview in that map of what was
worked by a specific station or band in a specific mode. I'm doing that
manually in google earth for my LF DX but it is not possible to show
completely since it is a 2D map. One example
https://dl.dropbox.com/u/19882028/LF/DK7FC-YV7MAE.png
There are many ideas for a new OP version i think. One is surely to
allow a frequency shift so a decode can be achieved at e.g. 12550 Hz
instead of 1550 Hz! In WSPR this is possible (i heared about that from
someone :-) )...
73, Stefan/DK7FC
GL , 73 -G..
Sent: Monday, August 06, 2012 11:40 PM
Subject: Re: LF: OP8 overnight on 136k G3XDV + DK7FC
G..,
There is a lot of QRN in EU today, so the levels are noticably lower.
However the OP8 path is open to 4X and to TF of course :-). Looks like
July/August is the most difficult month(s) in the year. Here we can
find the wamest nights of the year, rather than in May/June. But now
we're loosing 3 minutes between sunrise and sunset each day here...
There are also clear S/N improvements on the path to Venezuela, which i
observe each night.
73, Stefan/DK7FC
Am 06.08.2012 23:39, schrieb Graham:
All>>> OP8 overnight on 136k
May also be DK7FC
Storms permitting I will be sending Opera8 overnight tonight on
137.648kHz (136.000 dial). It looks like DK7FC is active, too.
Mike, G3XDV
G..
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