FHSS just means Frequency Hopping Spread Spectrum. As far as I know, all the 2.4GHz RC protocols are FHSS, though some might quibble about DSM2. Worst case, Ripmax sells multiple Rx's that are labelled FHSS that aren't compatible with each other, or with their products that use Futaba's FHSS protocols.
According to the
RCGroups thread on these
, they are not compatible with Futaba. Or Spektrum, Assan, FlySky or FrSky. Give that three of those (Spektrum, FlySky and FrSky) are the most popular ones that HK sells that work with deviation, I'd be surprised if it worked with any other protocol. But there's no way to tell without trying it. Or finding someone who got it to bind with a protocol that we know is or isn't supported by deviation.
Edit: Hopping, not Hobbing!
