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Release notes for v2.3.0 RC3
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Bill Somerville
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119
NEWS
119
NEWS
@ -13,6 +13,125 @@
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Copyright 2001 - 2021 by Joe Taylor, K1JT.
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Release: WSJT-X 2.3.0-rc3
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Jan 6, 2021
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-------------------------
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WSJT-X 2.3.0 Release Candidate 3 adds an improved FST4W decoder and
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fixes several defects and regressions discovered since the second
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release candidate.
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- FST4W: Improve FST4W decoder sensitivity on fading channels and
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decrease false decode rate.
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FST4W uses 50-bit messages and a 24-bit CRC. The 74-bit
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message+CRC is encoded into a 240-bit codeword. Received messages
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are decoded by two different decoders: (i) a “belief propagation”
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(BP) decoder and (ii) an ordered statistics decoder (OSD). The
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ordered statistics decoder has a knob that allows any or all CRC
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bits to be treated as additional parity bits rather than as part of
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the message+CRC field. Thus, the OSD decoder can decode the
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received message as a (240,50+Nc) code, where Nc is any integer
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between 0 and 24. In the RC1 and RC2 releases the OSD decoding
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attempt treated the code as a (240,64) code (14-bit CRC). This
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release uses 2 OSD decoding attempts that treat the received word
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as (i) a (240,66) code with 16-bit CRC and code rate 0.308 and (ii)
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a (240,50) code with no CRC and code rate 0.208. Codewords returned
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by the (240,50) CRC-less decoding attempt are unpacked and the
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decode is printed only if it contains a callsign/grid pair that
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have been previously decoded by the belief propagation decoder
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(which treats the code as a (240,74) code with 24-bit CRC) or the
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ordered statistics decoder configured for (240,66) (16-bit
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CRC). The callsign/grid memory is stored in file “fst4w_calls.txt”
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which resides in the data directory.
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- FT8: Fixed a crash triggered by double clicking on the waterfall to
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invoke a decode of a signal in the preceding T/R interval.
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- FST4W: Do not save .c2 files.
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- FST4W: Correct a bug that could cause incorrect operation when
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using negative noise blanker (NB) percentage to trigger looping
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over a range of NB percentages.
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- fst4sim: Added simulation of Lorentzian fading spectrum, invoked by
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negative fspread values.
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- Color highlighting scheme window fixed in dark mode.
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- Reports sent by QSO partners to other stations no longer logged in
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error.
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- UDP Status(1) message now includes the current Tx message.
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- Example diagnostic logging configuration files included.
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- Use system localization for date fields in Log QSO dialog.
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- Improvements to audio input and output buffer sizes.
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- wsprd: Fails gracefully if data directory does not exist.
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- wsjtx_app_version: new utility to print application version string.
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- Regression causing incorrect working frequency selection when
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changing modes repaired.
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- Regression with QSO initiation with "Best S&P" repaired.
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- Updated installation instructions for macOS covering M1 hardware.
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- Improved compatibility is Debian 9 required distribution packages.
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- Repair regression with missing time-stamps in the ALL.TXT journal.
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- Allow hamlib_settings.json to work with PTT only configurations so
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that optional PTT sharing on RTS or DTR can be enabled.
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- Several improvements to main window sizing and layout.
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- Repair regression with OpenSSL libraries being required when LoTW
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highlighting is not enabled.
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- Repair a defect that caused 2 by 1 callsigns to be incorrectly
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parsed as non-standard.
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- Several updates to international UI translations.
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Release: WSJT-X 2.3.0-rc2
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Nov 16, 2020
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-------------------------
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WSJT-X 2.3.0 Release Candidate 2 fixes issues found in RC1 and
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includes some new functionality that missed the RC1 cut off deadline.
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- Dropped audio samples message box removed, warnings and errors for
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these are now sent to the WSJT-X system log.
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- FST4W spots to WSPRNet.org will be augmented such that the server
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can distinguish the mode being spotted. Spots to WSPRNet.org will
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no longer be restricted to WSPR sub-bands.
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- A new internal system and data logging facility used to provide
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trace, debug, information, warning, error, and fatal error
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messages. The verbosity and filtering of messages is user definable
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via a configuration file. Without a configuration file a basic log
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is written with information, warning and error messages only. Log
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files are automatically rotated to limit disk usage.
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- Due to some users using inappropriate multicast IP addresses for
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their interoperating severs the default behaviour now is to only
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send multicast UDP datagrams to the loop-back network interface.
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Users who require WSJT-X UDP Message Protocol datagrams to reach
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other hosts will now have to configure WSJT-X to send on an
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appropriate network interface, and use an appropriately scoped
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multicast group address for their server applications. If you are
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not sure then 224.0.0.1 (or ff02::1 if IPv6 is desired) is a safe
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choice.
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Release: WSJT-X 2.3.0-rc1
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Sept 28, 2020
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-------------------------
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@ -17,6 +17,88 @@ Copyright 2001 - 2021 by Joe Taylor, K1JT.
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Jan 6, 2021
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-------------------------
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WSJT-X 2.3.0 Release Candidate 3 adds an improved FST4W decoder and
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fixes several defects and regressions discovered since the second
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release candidate.
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- FST4W: Improve FST4W decoder sensitivity on fading channels and
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decrease false decode rate.
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FST4W uses 50-bit messages and a 24-bit CRC. The 74-bit
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message+CRC is encoded into a 240-bit codeword. Received messages
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are decoded by two different decoders: (i) a “belief propagation”
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(BP) decoder and (ii) an ordered statistics decoder (OSD). The
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ordered statistics decoder has a knob that allows any or all CRC
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bits to be treated as additional parity bits rather than as part of
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the message+CRC field. Thus, the OSD decoder can decode the
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received message as a (240,50+Nc) code, where Nc is any integer
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between 0 and 24. In the RC1 and RC2 releases the OSD decoding
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attempt treated the code as a (240,64) code (14-bit CRC). This
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release uses 2 OSD decoding attempts that treat the received word
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as (i) a (240,66) code with 16-bit CRC and code rate 0.308 and (ii)
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a (240,50) code with no CRC and code rate 0.208. Codewords returned
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by the (240,50) CRC-less decoding attempt are unpacked and the
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decode is printed only if it contains a callsign/grid pair that
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have been previously decoded by the belief propagation decoder
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(which treats the code as a (240,74) code with 24-bit CRC) or the
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ordered statistics decoder configured for (240,66) (16-bit
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CRC). The callsign/grid memory is stored in file “fst4w_calls.txt”
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which resides in the data directory.
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- FT8: Fixed a crash triggered by double clicking on the waterfall to
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invoke a decode of a signal in the preceding T/R interval.
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- FST4W: Do not save .c2 files.
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- FST4W: Correct a bug that could cause incorrect operation when
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using negative noise blanker (NB) percentage to trigger looping
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over a range of NB percentages.
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- fst4sim: Added simulation of Lorentzian fading spectrum, invoked by
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negative fspread values.
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- Color highlighting scheme window fixed in dark mode.
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- Reports sent by QSO partners to other stations no longer logged in
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error.
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- UDP Status(1) message now includes the current Tx message.
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- Example diagnostic logging configuration files included.
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- Use system localization for date fields in Log QSO dialog.
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- Improvements to audio input and output buffer sizes.
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- wsprd: Fails gracefully if data directory does not exist.
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- wsjtx_app_version: new utility to print application version string.
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- Regression causing incorrect working frequency selection when
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changing modes repaired.
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- Regression with QSO initiation with "Best S&P" repaired.
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- Updated installation instructions for macOS covering M1 hardware.
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- Improved compatibility is Debian 9 required distribution packages.
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- Repair regression with missing time-stamps in the ALL.TXT journal.
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- Allow hamlib_settings.json to work with PTT only configurations so
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that optional PTT sharing on RTS or DTR can be enabled.
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- Several improvements to main window sizing and layout.
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- Repair regression with OpenSSL libraries being required when LoTW
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highlighting is not enabled.
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- Repair a defect that caused 2 by 1 callsigns to be incorrectly
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parsed as non-standard.
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- Several updates to international UI translations.
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Release: WSJT-X 2.3.0-rc2
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Nov 16, 2020
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@ -50,6 +132,7 @@ includes some new functionality that missed the RC1 cut off deadline.
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choice.
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Release: WSJT-X 2.3.0-rc1
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Sept 28, 2020
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-------------------------
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