A new version (2.4.0) of
WSJT-X, the software suite that includes FT8 and other digital protocols, has
introduced a new mode, Q65. According to the release notes, it is designed to
accommodate fast-fading signals and paths with Doppler shifts of more than a
few Hertz. "Q65 is particularly effective," the notes say, "for
tropospheric scatter, rain scatter, ionospheric scatter, TEP (trans-equatorial
propagation) and EME (Earth-Moon-Earth) on VHF and higher bands." It uses
the same message formats and sequencing as those used in FST4, FT4, FT8 and
MSK144. Q65 is one of 11 total modes included in the latest WSJT-X package. For
more information or to download the free software, visit <https://tinyurl.com/nzcmxywm>.