Hi Steve,
Thank you for your interest.
The HDFM processor is a pro product – the price is well out of range for hobbyists. I’m currently looking into different avenues for distribution – the best would be hardware, as broadcasters are generally not comfortable dealing with software.
It’s not impossible that there’ll be an FM-compatible version of Breakaway at some point though. Pre-emphasis and distortioned cancelled clipping is a possibility – however RDS won’t be part of it – it’s an enormous project for no gain (Airomate does RDS perfectly, there’s nothing I could improve upon regarding Airomate’s RDS implemention, and it’s readily available, as well as inexpensive).
Since Airomate is essentially the de-facto standard for hobbyist broadcasters, maybe a Breakaway version with FM pre-emphasis and limiting (no MPX output) would be the best option — designed to connect to Airomate. That way, you could disable all clipping and filtering in Airomate, and actually have a compliant, overshoot free signal coming out of Airomate!
I definitely have to release the pro version first, though.
///Leif