KPSK is a PSK31 digital radio communications application for use by licensed amateur radio operators and designed specifically for the KDE 3.x desktop environment. Features include: * Simple, feature-filled user interface * Simultaneous monitoring of up to four PSK31 signals * User-configurable waterfall colors, fonts. * Auto-scaling waterfall * Optimization to provide IMD data only when the measurement is valid * Twelve user-defined fixedtexts (TX macros), available by mouse or F1-F12 keys * Integral BerkeleyDB-based QSO logbook * BPSK or QPSK operation * Automatic and manual modes for calling CQ * Ability to send an ASCII text file * Extensive application documentation