On 20/01/2020 00:25, Roger Rehr W3SZ wrote:
Today I noticed a very occasional variation in type 2 UDP network
messages sent by WSJTX version 2.1.2. The issue of variation is that
the length of the text message as specified in the UDP message is
longer than the "correct" text message length, and in fact the "text
message" portion of the UDP message consists of the "correct" text
message followed by a number of spaces, followed sometimes other
character and finally followed by "a1" before the Low Confidence and
Off air bits of the message are given (in their correct position based
on the specified "text message" length).
Hi Roger,
thanks for reporting this. The decoded message appendages are an
artefact of some rather messy internal implementation details of WSJT-X.
The decoder appends some statistical information about decode quality
when the decoded message is passed to the user interface part of WSJT-X,
the reason for this is historical and the information should be passed
as separate fields or arguments but it was simpler to append the text at
the time. The extra text should be trimmed off before exporting via the
UDP messages although the current content does reflect exactly what is
printed on the WSJT-X UI, so it is not technically incorrect. I note
also that the "Low confidence" marker is not being set correctly, it
should have a true value when there is a '?' character near the end of
the message.
I will fix this for the next release of WSJT-X.
73
Bill
G4WJS.
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