WSJT-X Version 2.4.0 in General Release, Version 2.5.0 on the Horizon

摘要

As of June, WSJT-X version 2.4.0 was available in general release, with version 2.5.0 ready to follow. According to co-developer Joe Taylor, K1JT, WSJT-X version 2.4.0 includes the new digital mode Q65. This protocol is designed for two-way contacts over especially difficult propagation paths, including ionospheric scatter, troposcatter, rain scatter, TEP, EME, and other types of fast-fading signals."On paths with Doppler spread more than a few Hertz, the weak-signal performance of Q65 is the best among all WSJT-X modes," the Quick Start Guide asserts.Q65 uses 65-tone frequency-shift keying and builds on the demonstrated weak-signal strengths of QRA64, a mode introduced to WSJT-Xin 2016. Q65 offers user message and sequencing identical to that in FST4, FT4, FT8, and MSK144. It includes a unique tone for time and frequency synchronization.