KPSK is a PSK31 digital radio communications application for use by licensed amateur/ham radio operators and designed specifically for the KDE desktop environment.
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A frequency scaling waterfall was added, along with simultaneous transcription of 4 signals, twelve macro functions (F1-F12), configurable waterfall colors, improved IMD calculations that are displayed only when the value is valid, and full user documentation, including troubleshooting information. It was also ported to KDE3.