- - JT65A frequencies: http://hflink.com/jt65/
- digital modes world map (PSK reporter): https://pskreporter.info/pskmap
- original version of JT65HF by W6CQZ: http://jt65-hf.com/downloads/ (not sure this is the official project's home page. Be careful what you're downloading!)
- JT65HF 1.0.9.3 by IZ4CZL: http://iz4czl.ucoz.com/index/0-28
- JT65HF 1.0.9.3 Comfort (3.7) by DL3VCO: http://funkamateure-dresden-ov-s06.de/index.php?article_id=177
- JT65HF Comfort (4.0) by DL4OCE: http://abcsolutions.de/jt65hf/
- JT65HF HB9HQX: http://sourceforge.net/projects/jt65hfhb9hqxedi/