Originally Posted by AEAJR
FASST radios can not talk to Futaba FHSS receivers and their FHSS radios (6J and 8J) can not talk to FASST or FASSTest receivers.
Note that FHSS is also a generic term meaning Frequency Hopping Spread Spectrum. But just because a radio says it uses FHSS does not mean a Futaba FHSS readio can talk to it.
I've got a Spektrum DX8 with DSMX technology, and it works just fine both my new DSMX receivers and my old DSSS receivers. You can google DSSS modulation, and get all sorts of very technical information on exactly how it works. Google FASST, and get, nothing on exactly how it works.
They both work well however.