lpsk31 is a ncurses console application for ham radio communications in the
popular PSK31 digital mode. lpsk31 uses only integer arithmetic for both
signal detection and audio tone synthesis, so that it needs no floating point
calculations for its operation. lpsk31 can keep a log of QSO's in text and
ADIF format as well as a raw log of all that is typed in the transmit window
or displayed in the receive window. Some QSO data (signal strength and
frequency) can be acquired automatically via a CAT interface from the
transceiver itself, if it is an FT847. Unfortunately there is no CAT for other
types of transceiver since I had problems using Hamlib.