WSJT-X 1.9 RC2 Candidate Release is out!

To all enthousiasm digital users, a new WSJT-X release 1.9 RC2 candidate is out now for all major platform.

Release: WSJT-X Version 1.9.0-rc2
February 26, 2018

Changes from WSJT-X Version 1.8.0 include the following:

  • New FT8 DXpedition Mode to facilitate high QSO rates in pileup situations
  • Decoding improvements for JT65 mode, including a priori (AP) decoding when VHF/UHF/Microwave features are enable
  • Optional Auto-Sequencing in JT4, JT9, and JT65 when VHF/UHF/Microwave features are enabled
  • Better suppression of low-confidence false decodes generated by AP decoding in FT8 mode
  • Improved decoding performance for WSPR mode, especially effective at LF and MF
  • Minor adjustments to auto-sequencing behavior
  • More flexible Doppler control features for EME
  • Improved waterfall sensitivity for very weak signals
  • Automatic real-time forwarding of logged information to N1MM Logger+
  • Expanded and improved UDP messages sent to companion programs
  • Bug fixes and other minor tweaks to user interface

A primary purpose of this beta release is to allow field testing of
FT8 DXpedition Mode. Instructions for this mode are posted here:

Contacts in FT8 DXpedition Mode must use WSJT-X v1.9.0 at both ends of the QSO. Please report any anomalous behavior to email list You must be a subscriber in order
to post there.

The download is available at :

Have fun and stay tuned!

de Jeff | VA2SS

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2 Responses to WSJT-X 1.9 RC2 Candidate Release is out!

  1. VE2NCG says:

    As is today (March 1st) it’s still version 1.8 on the website….


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