Now available in either 72Mhz (Aircraft) or 75Mhz (Ground) frequencies! The FCC regulates that you CANNOT legally use 72Mhz systems for ground-based vehicles, but we get a lot of requests for 72Mhz systems for those of you flying model aircraft. Now you can purchase this system on the 72Mhz frequency from us as well. (The price is cheaper because more 72Mhz systems are made than 75Mhz. PLEASE DO NOT attempt to use the 72Mhz system for a ground-controlled robot! When you buy the 75Mhz ground system, it is configured from the factory specifically for use with ground vehicles such as robots or RC cars/boats. When you buy the 75Mhz XF631 from the Robot MarketPlace, it will come configured without servos (you don't need those for your robot anyway, right?)

Product DISCONTINUED Check back soon for an alternative radio from JR.

JR XF631 FM System

The XF631 is a great, inexpensive programmable 6-channel radio control system.

For those builders have never owned a programmable system before, a typical 6-channel system with more programming functions than they really need could be confusing to use and actually get in the way of operating your robot or vehicle. It is these circumstances that the JR XF631 was designed for.

Keepin' it simple The XF631's strength is its simplicity. It limits the programming functions to those used by the largest segment of modelers, such as:

* Dual rates
* Travel adjust
* Sub-trim
* Servo reversing
* 3-model memory
* 4 types of preprogrammed mix modes (standard, flapperon, V-tail, or the most commonly used for 1-stick driving of combat robots-elevon) The programing switches are positioned conveniently below the main power switch. With these two rocker switches, a robot operator can program the radio in a logical, intuitive manner.

The XF631 includes the computer transmitter with built-in NiCad battery pack, the advanced, lighter, narrower R700 FM Receiver (considerably smaller than equivalent other 7 channel receivers!), a 600mAh receiver pack, a dual-charger that can be used to charge up the transmitter and receiver simultaneusly (not pictured) and a standard switch harness. With the 72Mhz aircraft system, 4 servos are also included.

To keep the XF631 affordable, JR put digital trims on all four stick controls. Moving any of these digital trims automatically stores the new position in that model's memory, and the Instant ID feature switches the display to show the trim value while the adjustment is being made. Robot operators can fine-tune trim adjustments literally on the fly without distraction, and not have to dig into the menu to make and save the changes.
A top-notch flight pack

The XF631 is one of the best-priced, easiest-to-use 6-channel radios available. If you're looking to make the leap to computer radios but don't want the complexity that usually comes with programming one, the XF631 is definitely worth a closer look.