WSJT

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Description

WSJT facilitates basic digital communication using protocols explicitly optimized for a number of different propagation modes.

The latest release, WSJT 9.5, includes several relatively new modes not yet described in the User's Guide.

ISCAT now has two sub-modes. ISCAT-B is the original ISCAT mode with total bandwidth 1809 Hz. ISCAT-A runs at half the rate, uses half the bandwidth, and (for average decodes on steady signals) is about 1 dB more sensitive. It has been found very effective for making aircraft scatter QSOs at 10 GHz. ISCAT-B probably remains the best mode for 6 meters, but experimentation is encouraged!

JT65B2 and JT65C2 use the same tone spacing as JT65B and JT65C, respectively. They are keyed at twice the rate, and T/R sequences are 30 seconds rather than one minute. Sensitivity of the fast modes is 3 dB worse than the standard modes. The B2 and C2 modes allow EME contest QSOs to be made at twice the rate, up to about 20 QSOs per hour.

WSJT-X is an experimental release implementing JT9, a new mode designed especially for use on the MF and LF bands. Be sure to read its User's Guide before attempting to use the program!