On 03/09/2019 21:54, Dave Crockett wrote:
I’ve been running WSJT-X on a 32 bit Win10 Pro laptop (4 GB RAM, 150 GB SSD and
Core2 duo 2.24 GHz processor) since version 1.8. Even after transitioning to
version 2, I’d had no particular problems with the software. But, for some
reason, since just after ARRL Field Day (which went pretty well BTW), both FT8
and FT4 decoding has become erratic. No particular pattern…just long periods
of audible/waterfall indications of signals but no decodes..then spurts of
decodes for several cycles…then more non-decodes. Received signals in the
35-40 db range on the WSJT-X display, and tweaking of all PC interface levels
seems to make no difference in the problem. Only other symptom I am aware of
is random fractional second dropouts of audio in tune mode (roughly every 4-10
seconds on a continuous tune) even into a dummy load (no RFI factor). No
unusual background application activity evident to me in the Task Manager.
A full Windows refresh…and reloading of WSJT-X and HRD (talking to a Kenwood
TS-480HX through a SignaLink interface set at around 9 o’clock on both transmit
and receive levels)…but the problem continues (including the transmit dropouts).
My question is whether reloading with a 64 bit version of Win10 and other
software might get more reliable decoding again?
Thanks, Joe and team, for all your VERY hard work!!
-Dave, WB4DFW
Hi Dave,
your symptom of audio dropouts during transmit as a sign that your PC is
running out of CPU resources. This is normally indicative of some
background process runing incorrectly and using excessive CPU time.
Equivalent dropouts in the received audio are inevitable and will be
very detrimental to successful decoding. You need to use Task Manager
and the linked Resource Monitor application to try and track down and
tame the offending process.
73
Bill
G4WJS.
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