Hi Lawrence,
Thanks for your detailed and carefully prepared report. I've diagnosed
the probable cause of this bug and have a proposed solution. I will
build the fix into a pre-release testing version of WSJT-X 3.2.0 and
send you a download link in an off-list email. Please test it for your
reported symptoms and report back to me.
-- 73, Joe, K1JT
On 9/3/2026 2:46 AM, hellozerohellozero via wsjt-devel wrote:
From Laurence Howell - KL7L (and from multiple 475 and 137kHz slow
speed 900 and 1800 secs users worldwide)
Operating systems - Win 10 and 11 (maybe some are still using WIN7) -
Win 11 users seem to have more issues
Code current w3.0.2 and at least as far back to 3.0.0 maybe further
Mode : FST4W 900 and 1800 maybe issues with 300 secs but not seen here
Users affected - all that have been canvassed on working groups have
these issues and some say its been going on since the code and fst4w
code was releases
User locations - worldwide users reporting
Issues -
*
On selection of ½ or 2/2 tx periods in say 900 or 1800 sec mode,
the Tx will not enable at the time to tx , or miss first one or
two or more periods, or miss a period after a few good tx periods
- the clear for some is to set up mode and band set random 100%
and then close wsjt, wait 15 secs and then restart program with
wanted ½ or 2/2 periods - but will occasionally not tx when it
comes to the time to tx - Everyone seems to have a non standard
trick but no one is reporting "mine works all the time" so seems
endemic - I cant get mine to behave here with any trick at 900 sec
speed on tx - sometimes it behaves, sometimes not
*
On pressing TUNE button - the program misses the first or more
transmission period - the clear for this is to, after tune to
restart program and do not press Tune - this "clear" has been
reported by at least 20 users (and there arent a lot of us globally!)
*
The Tx Next button at these speeds is funky - sometimes it will tx
next and sometimes not - reported by many
In all cases Enable Tx stays lit ok
Appreciate you looking at this for the users of these long
wavelengths, and hope this reached the right target
Very 73 and thank you for the code and support!
Laurence KL7L and users of 475 and 137kHz globally
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