Originally Posted by
rgburrill
Change the batteries and fly it. Yea, right! I tried that - luckily the servos went nuts before I started moving. I still haven't found the problem but have been told it could be in either the transmitter or the receiver or maybe even a servo or two.. Seriously, do a compelte check of your radio system, inlcuding range check before you fire up your engine. Then do it again after your fire it up.
BTW, one thing you will find with 2.4GHz is that unlike 72MHz nearly evey manufacturer has their own comm protocols and therefore one manufacturers receivers won't work with another's transmitter. That's one disadvantage to Frysky, Flysky and the cheapy Chinese ones. I was looking at a Flysky 9 channel system yesterday but found that it came with an 8 channel receiver and couldn't find a 9 channel receiver for it.
Any radio system (72 or 2.4) can develop a problem with the TX, RX, and/or servos so your issue can be any one or a combination of the three. That's why you perform radio and range checks prior to any flight. You mentioned a "disadvantage" of FrSky but didn't point out what it was. FrSky has receivers that are compatible with their transmitters and modules, but they also have receivers that are compatible with Futaba 2.4 transmitters. I have several and just ordered two more for use with my 2.4 Futaba transmitter. They are available with or without telemetry capability.