What transmitter?? original MX3 IS NOT FHSS3,FHSS2
MS-3X transmitter
should be switchable between FHSS2 & FHSS3 (check this in the manual)
Only airtronics & Sanwa (Same thing) will work.or rebrands of Sanwa
or this Ansman. Works with my MX-3X
http://www.ebay.com/itm/Airtonics-Sa...item1e634c6063
heres the info Ive found, not sure of accuracy..
Airtronics 92524 FHSS-2 = 3 ch = RX-371FS????
Airtronics 92624 FHSS-2 = rx-442fs = 4ch
Airtronics 92744 FHSS-3 = sanwa RX-451 Telemetry
92010 = RX461 = 4ch telementry
NOT original FHSS 92324, 92324
NOT rx-441