WSJT-X Version 2 Released; Prompt Upgrades Encouraged

A new version of K1JT’s digital communications suite – WSJT-X, Version 2.0.0 – has been released for general use. All users of the software, especially the popular FT8 and MSK144 modes, are encouraged to upgrade promptly. “The FT8 and MSK144 protocols have been enhanced in a way that is not backward compatible with older program versions,” according to an announcement on the WSJT home page. It continued that the new protocols became the world-wide standards as of December 10, 2018, and that “all users should upgrade to WSJT-X 2.0 by January 1, 2019. After that date, only the new FT8 and MSK144 should be used on the air.”

Other modes included in the WSJT-X suite are JT4, JT9, JT65, QRA64, ISCAT, WSPR and the Echo mode for measuring your own signals reflected from the Moon. For more information, visit <https://tinyurl.com/hg6rnxm>.

Correction: Practice Contest for ARRL RTTY Roundup Participants Planning to Use FT8

A 1-hour “practice contest” will be held next week on Thursday, October 25, 0200 – 0300 UTC (Wednesday, October 24, in North American time zones). Use dial frequency 7.078 kHz, moving up in 2 kHz increments if interference is too great. The date was incorrect in this week’s edition of The ARRL Letter.

To participate you must use WSJT-X version 2.0.0-rc3. Installation packages for Windows, Linux, and macOS are near the bottom of the page. This version is “Release Candidate 3,” a beta-test version. A full release of WSJT-X 2.0 is targeted for release on December 10. There’s also a revised Quick-Start Guide to WSJT-X 2.0-rc3. FT8 co-developer Joe Taylor, K1JT, advises reading the entire document before using WSJT-X 2.0. (Changes in RC3 relative to RC2 are described starting on page 7.)