Hi Peter, Ed, and all,
Best WSJT-X operating practices are not necessarily the same for all
modes. Q65 is the youngest mode in the program: since October 2020 it
has been developed and optimized with special attention to its use for
propagation modes mentioned in its Quick-Start Guide such as
tropospheric scatter, rain scatter, ionospheric scatter, TEP, and EME.
These optimizations require example *.wav files recorded by WSJT-X.
So far we have no such files for the December-January openings between
the Americas and VK/ZL on 6 meters. Please help us in this regard!
It's a big help to us if you always operate with "Save all" checked on
the save menu -- at the very least, do this when operating in unusually
interesting propagation conditions. Then, remember to send us a few
examples of interesting files. You can always invoke "File | Delete all
*.wav & *.c2 files in SaveDir" to clean out unwanted files.
On specifics of best operating practices for Q65 modes: many recommended
settings are explicitly mentioned in the Quick-Start Guide to Q65 or
shown in the screen shot there. It is no longer necessary to set
I generally use FTol = 100, or even less, and set the Rx Freq on the
sync tone of the station I'm trying to work. If "Single decode" is
unchecked on the "Settings | General" tab you will normally see decodes
of other signals in the passband as well as the one at the selected
frequency. If you see a signal that does not decode, you can always
double-click on its sync tone to force a decoding attempt there. For
EME signals you must always check "Decode after EME delay".
Q65 decoding can take longer than for other modes, so I generally use
the Fast setting on the Decode menu. If you have a fast shack computer
you might want to experiment with Normal or Deep. However, note that
with the Fast setting you get quick decodes of most decodable signals,
and when you double-click on a signal the decoder always uses Deep
parameters. So then you're covered, both ways.
Peter, your comments about q3 decodes of the signal carrying message
"K1JT K9AN R-16" suggest that you haven't yet quite understood the "q#"
meanings. With MyCall set to K1JT and DxCall set to K9AN, you'll get q3
decodes because both calls are as specified. With MyCall = K1JT and
DxCAll set to something else (or blank), you can gen a q2 decode. With
MyCall = something other than K1JT, you can only get a q0 decode. For
the example in the Quick Start Guide, you get a q03 average decode after
three files are processed.
Please send us some files with good intercontinental DX signals!
-- 73, Joe, K1JT
On 1/5/2022 6:25 AM, Peter Sumner wrote:
Hello Joe and others.
It would seem I am the creator of my own problems, I have been chatting
with Charlie G3WDG and he made mention that he was using a narrow Ftol
value and could decode all signals from my shared test WAV file and the
multiple signals in the files he created and sent to me.
I have been setting my Ftol to be a large value (1,000Hz) which was
covering many of the wanted signals in the passband, something I thought
I needed to do, which is a bit of a hangover from using JT65 I guess.
As soon as I set my Ftol down to 20 Hz like Charlie and I now notice you
also made mention of 20Hz in your quick start guide, I am able to decode
all signals in my sample files and those from Charlie on a complete
range of WSJT-X instance I have on the shack PC's and Raspberry PI's I
use for WSPR duties.
For those who like to test it for themselves, my test file for Q65-A
30sec period is here: https://vk5pj.com/wsjtx/220103_224100.wav
<https://vk5pj.com/wsjtx/220103_224100.wav>
If successful you will see these three decodes:
224100 -7 0.3 1173 : CQ OC W4TAA EL87 q0
224100 -11 0.2 1520 : CQ AC4TO EM70 q0
224100 -17 0.2 2510 : CQ KD5M EM60 q0
I suspect there are many more than I with this wrong setting, so would
encourage people to check their Q65 setup.
regards,
Peter, vk5pj
On Wed, Jan 5, 2022 at 2:43 AM Joe Taylor <j...@princeton.edu
<mailto:j...@princeton.edu>> wrote:
Hi Peter,
I tries WSJT-X 2.5.4 on the Q65 sample Q65 files. I see all the
decodes for Q65-60A and Q65-30A that are mentioned in the "Quick-Start
Guide to Q65," so I have no idea what may be causing you trouble. If
you haven't figured it out, you could send me a copy of file WSJT-X.ini
in your log directory, and I'll look further...
-- 73, Joe, K1JT
On 1/4/2022 5:16 AM, Peter Sumner via wsjt-devel wrote:
> Hi,
> at some point the Q65 decoder engine has stopped showing
decodes from
> multiple signals in the WSJT-X passband and I am at a loss to
explain
> how or when this has occurred.
>
> I have downloaded the sample files from the main Pulsar web site and
> tried to follow the Q65 quick start guide to no avail.
>
> At this point none of the Q65-30A sample WAV files produce a
decode for
> me, the single sample for Q65-60A seems to have two signals but
can not
> get either to decode no matter what combination of Fast, Deep or
Normal
> I have tried.
>
> While I have successfully had some Q65 contacts to the USA today
from
> Australia, it is making me doubt the results of the decoder.
>
> Does anyone in the group have some proven Sample WAV files with
multiple
> stations in a period I could try? (other than the ones from the
WSJT-X
> web site)
>
> So far tried WSJT-X version, 2.4, 2.50, 2.51 and 2.54 with the
> same result. I know this used to work for me as in June July it was
> doing multi pass decoding on the openings to the EU and was
working on
> EME during the recent W7GJ trip away.
>
> I am leaning to this being a problem with a windows update as
going back
> and testing with v2.4 should have given me good results but alas no
>
> Still scratching my head.
>
> Regards,
> Peter, vk5pj
>
>
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