Originally Posted by
Rcdad42
In going to guess the frequency. The rx-49t uses 2.4 GHz FHSSS , and the rx-493 uses 2.4 GHz FHSS5.
It seems like Sanwa comes up with some new alpha/ numeral to make the previous gen of transmitters not work with the new receivers.
That's simply a mis-print. An "S" and a "5" look similar and Sanwa has no technology called FHSSS. They are both FHSS5 or more simply FH5 protocol receivers.