http://www.rchobbies.com.au/store/pr...eac4a430bfcbcb
You may want to consider one of these, no problems with crystals, greater range and spektrum gives you a lot more life out of the transmitter batteries.
I dont know what this transmitter is like, i run an older DX3. But note that it only has a two model memory, so if you run more than two cars you need to keep setting up the transmitter.
The only other issue i find with spektrum is that sometimes you have to run a power cap off the receiver.
http://www.rchobbies.com.au/store/pr...eac4a430bfcbcb
But you can just go to jaycar and buy a capacitor and solder it to a plug if you have a spare plug to rip off something else.