JTDX - JT9 and JT65 Modes for LF MF and HF Amateur Radio.

JTDX is an open source HAM radio program for HF JT65 and JT9 modes. It comes with optimal candidate selection logic, and four/five pass decoding & decoders based on the matched filters making JTDX performance quite different from WSJT-X software for operation on the HF bands.