WSJT-X 2.2.0 released

The WSJT Development Group is pleased to announce the general availability (GA) release of WSJT-X Version 2.2.0. A brief summary of new features is provided here; for further details see the Release Notes:

… and of course the updated WSJT-X 2.2 User Guide:

New Features in WSJT-X 2.2.0:

– Significant improvements to the decoders for FT4, FT8, JT4, JT65,
and WSPR.

– New format for “EU VHF Contest” Tx2 and Tx3 messages

When “EU VHF Contest” is selected, the Tx2 and Tx3 messages (those
conveying signal report, serial number, and 6-character locator)
now use hashcodes for both callsigns. This change is NOT backward
compatible with earlier versions of _WSJT-X_, so all users of EU
VHF Contest messages should be sure to upgrade to version 2.2.0.

– Accessibility

Keyboard shortcuts have been added as an aid to accessibility:
Alt+R sets Tx4 message to RR73, Ctrl+R sets it to RRR.

As an aid for partial color-blindness, the “inverted goal posts”
marking Rx frequency on the Wide Graph’s frequency scale are now
rendered in a darker shade of green.

– User Interface Translations have been enabled. Translations are
now available for Catalan, Spanish, Japanese, Chinese, and Hong
Kong Chinese. Additiional languages will follow, when available.

Note that UI translation is automatic, based on your system primary
language. If you do not want the WSJT-X UI translated to your local
language then start WSJT-X with the ‘–language=en’ command line

wsjtx –language=en

If you wish to contribute by authoring WSJT-X UI translations
please join the new discussion group [email protected]
(, where help from other translation
authors and coordination with the development team is available.

– Minor enhancements and bug fixes

“Save None” now writes no .wav files to disk, even temporarily.

An explicit entry for “WW Digi Contest” has been added to
“Special operating activities” on the “Settings | Advanced” tab.

Contest mode FT4 now always uses RR73 for the Tx4 message.

The Status bar now displays the number of decodes found in the
most recent Rx sequence.

The “Highlight Callsign” UDP message has been enhanced to allow
clearing of old highlighting for a specified callsign. Please note
a recommended restriction on the use of this message in the
documentation here:

– Hamlib – this library which we use for direct rig control has had
many defect repairs and enhancements, we thank the contributors to
that project for their work.

Upgrading from earlier versions of WSJT-X should be seamless. There is no need to uninstall a previous version or move any files.

Please do not continue to use any release candidate — that is, any beta release with “-rc#” in the version name.

Links to installation packages for Windows, Linux, and Macintosh are available here:

You can also download the packages from our SourceForge site:
It may take a short time for the SourceForge site to be updated.

WSJT-X is licensed under the terms of Version 3 of the GNU General Public License (GPL). Development of this software is a cooperative project to which many amateur radio operators have contributed. If you use our code, please have the courtesy to let us know about it. If you find bugs or make improvements to the code, please report them to us in a timely fashion.

We hope you will enjoy using WSJT-X Version 2.2.0.

— 73 from Joe, K1JT, Steve, K9AN, and Bill, G4WJS,
for the entire WSJT Development Group