I have added a FDMDV modem page to this web site, plus typed up a README_fdmdv.txt that explains all the files related to the modem and how to use them.
This modem was “lost” a few years ago as the initial implementation was closed source. So I felt compelled to put a fair bit of effort into documenting the open source implementation I have been working on. Building this modem was fun, just hard enough to be challenging but no real show stopper bugs and didn’t hurt my head like Codec 2 algorithm development.
Next step is to tweak Codec 2 to make it interface cleanly to the modem for some initial on-air tests.
Stupendous work mate!