RE: Freq. Shift
Rafael,I don't think you read his post fully, he isn't buying new receivers, he's considering a new transmitter, the JR 9303[8D], sadly Airtronics hasn't stayed competitive in aircraft radios so a new transmitter in the class of the JR 9303 is not available from them. As far as dual conversion receivers go Airtronics are among the best, so his game plan makes a lot of sense, I agree he should test before buying the new transmitter and each receiver should be range checked with the new transmitter before flying.
Hey I fly on 72Mhz and have 4 of the older non-Z Airtronics receivers and I fly them with a Futaba 9Cs[X(], it
can be done[8D] and range test on all is as good as with my old Airtronics Infinity 660, now retired to simulator duty[&o].
There is no rational reason not to use compatible PPM receivers with a different brand of transmitter as long as they range check.
Pete