The radio system will have crystals installed.

As I noted... the base system, at about $100 to $120 US would have the servos, RX and battery pack with switch... that flight pack costs $90 to $110. The charger (you'll want a second if you have 2 planes....) is $15 as a spare part. You basicly can't lose buying the low end 4 ch radio.

If your budget is limited, don't need elevon mixing and you are just getting started.,go with the budget 4 ch. In a year or two (maybe a bit longer) when you start feeling a need for more channels and/or more features, you will probably have more $$$ to buy the computer radio. (and if its the same brand and frequency... the new TX will work with the old RX) The old TX can be set aside for use as a Buddy box. (or for your Combat plane... [img]i/expressions/face-icon-small-wink.gif[/img] )

There is a side bennefit to starting with a basic system... it teaches you to properly set up the controls. The computer radio can let you get away with a poor control setup, by programming the channels to mofve the surfaces the correct amount. Its a bad habit though. Mechanical adjustment of control surface travel is FAR superior to using computer ATV adjustments. (but not as convenient...)