Program to receive and transmit RTTY (radioteletype) and PSK31 (BPSK and QPSK modes) via a sound card. No additional hardware required - your need only transceiver and computer (5x86-133, Pentium-75 or better) with sound card. Optionally you can use simple circuit for PTT-control. It make fast and convenient frequence control, has a lot macros for tramsmitting. Can cooperate with RZ4AG AAlog logger.