I have noted the Phantom signal on JT9-1.
This morning in QSO with G3XIZ he reported it also. We give each
other relatively strong signals. At the end of the RX minute the
waterfall trace starts again and creates a replica of the previous
real signal. I have clicked on the original and it de-codes clicking
on the replica does not.
Eddie
On 29/10/2012 21:43, Stefan Schäfer wrote:
Joe,
Further notes which i hope they help:
The spectrogram appears pink during the time i am transmitting. I
have
a separate PC and instance for RX and TX, so i'm receiving my own
signal on a totally overloaded RX antenna. But in WSPR this
generated
normal decodes at +15 dB SNR.
The spectrogram is also pink during the time slot where i am not
transmitting. This stops a few seconds before the full minute ends
(in
JT9-1). So maybe this is the ghost signal we reported from?
Now i reduced the decoder BW from +-50Hz to +-20Hz. The decoder
finishes now after about 30 seconds so the program does not hang
up any
more! However i am getting no decodes of my signal. I'll watch out
for
other signals now.
73, Stefan
Am 29.10.2012 22:21, schrieb Stefan Schäfer:
Joe, Chris, LF,
Yes, the same here. I shut down the program but the exe was
still
running, running at 100% CPU load. After deleting the process in
the
task manager and restarting the program, it worked but now it
hung up
again. This PC is also XP SP3. On my other Win7 PC it works
fine.
Maybe it has to do with the wide RX range where the decoder
needs a
longer time to watch for possible traces? Although the program
seems to
hung up on my TX PC, it correctly starts the transmission. I
also noted
that other programs are not affected in their performance during
the
100% CPU load. So i assume the decoder consumes as much CPU
power as
available (the program has to receive during the same time, so
overloading the CPU would be contraproductive)
So maybe the program does NOT hung up but the decoder is not
finished
before the next decode sequency starts?
Joe, how do i choose a RX center frequency of 12440 Hz? For the
TX side
it works now... Thanks for making that possible!
Another suggestion from me is to allow to permanently disable
the
decoder, in case someone only wants to transmit (a BEACON). Most
of the
DX work in the northern hemisphere is done in the deep night
(when
G3KEV is sleeping).. :-)
And a further idea: Allow the user to choose a line from the
COM-port
(RXD or TXD or DTR...)
Is someone getting decodes of my JT9-1 transmissions? I can now
steer
the TX converter directly from the program.
More soon.
73, Stefan/DK7FC
Am 29.10.2012 21:41, schrieb Chris 4X1RF:
Roger, LF,
Same thing here (on my YO grabber PC: http://qsl.net/4x1rf/yo/lfgrabber.htm)
Software crashes after it starts decoding but I can still
see it
running in the Task Manager.
73s
Chris 4X1RF
On Mon, Oct 29, 2012 at 10:31 PM,
Roger
Lapthorn <[email protected]>
wrote:
The
link
worked for me OK Steinar about 30 minutes ago..
Running the new version I had the program crash out
after about 3
minutes. I had sent one cycle of JT9-2 (CQ G3XBM) on
500kHz and was
receiving in the next slot only to have the whole window
close. Tried
it a second time and had the same issue again.
73s
Roger G3XBM
On 29 October 2012 18:51,
Steinar Aanesland <[email protected]>
wrote:
It seems that Joe has released a new ver of wsjtx,
but the link is
dead. Is there anyone out there having a copy?
LA5VNA Steinar
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