The question in my mind is the degree to which beacon-like features should be mixed with a mode
designed for making QSOs. If beaconing behavior is desired, why not use WSPR? If it's important
to have, say, 10 dB better sensitivity than WSPR, then maybe a "slow WSPR" mode should be developed
and used, rather than JT9.
-- 73, Joe, K1JT
<2 cents>
Joe ... agree with your assessment that JT9 should be kept as a QSO mode program and not a
combination QSO / beacon mode program. The two sets of requirements are significantly different and
trying to make a combination program may end up being a compromise. WSPR does such a good job for
beacon mode and the database works so well it may make more sense to develop that further. A number
of us have been testing 'slow' WSPR modes (thanks to the work of Marcus and Wolf) and the results
have been impressive ... although the 'proof of concept' arrangement using additional software is
rather 'clunky'. If it were possible to modify WSPR for several slower speeds, equal the performance
of WSJT-X JT9 and continue to use the WSPR database that sounds like a good plan. It would really be
something if WSPR could decode stations running different speeds simultaneously ... and indicate in
the decoded information / database which mode was decoded ... but that may be too much to ask.
Jay W1VD WD2XNS WE2XGR/2
</2 cents>
----- Original Message -----
From: "Joe Taylor" <[email protected]>
To: <[email protected]>
Sent: Sunday, October 28, 2012 3:25 PM
Subject: Re: LF: JT9 buggy issues
Hi Roger,
After about 1 minute or so, the program just closes itself and disappears
from the PC screen.
Please open a command-prompt window and start the program from there. For
example,
C:\> cd \wsjtx
C:\> wsjtx
When the program dies, send me any error message left in the command-prompt
window.
I am using a SignalLink VOX controlled sound card interface that I use for
WSPR. Also, when I reload the program I have to reload my callsign, grid
etc.every time.
This makes it sound like you may have ignored the installation advice in the Quick-Start Guide:
"Under Vista or Windows 7 be sure to install WSJT-X into its own directory (the suggested default
is c:\wsjtx) rather than C:\Program Files\wsjtx." Please confirm.
Although I very much hope to use the mode for QSOs please do not
underestimate the value of a weak signal beaconing function with an
internet database. This has proved extremely valuable on WSPR as people
sometimes leave a RX and PC running to monitor when they are busy and not
available for QSOs. There will be far more people able to receive and
report than TX on MF/LF. This is especially true on 136kHz.
Yes, I understand these points, and beacons have their place. WSPR would not be there if I did
not believe this.
The question in my mind is the degree to which beacon-like features should be mixed with a mode
designed for making QSOs. If beaconing behavior is desired, why not use WSPR? If it's important
to have, say, 10 dB better sensitivity than WSPR, then maybe a "slow WSPR" mode should be
developed and used, rather than JT9.
-- 73, Joe, K1JT
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