Overview

Computer radios offer many advantages over their non-computer analog counterparts. But there are still those who are reluctant to give computer radios a try, mainly because of the complexity involved in programming them and their higher cost.

Now JR is offering a computer radio that's simple to program at a price that rivals many four channel analog systems the XF421EX.

As easy as 1, 2, 3

JR's XF421EX makes setting up an airplane as easy as 1, 2, 3. It features an accessible two button input located at the top right and left of the transmitter. That's right, only two buttons are used /needed for programming. Your thumbs naturally fall into position on the buttons, which can be moved up or down. The left button is used to select the function (up) and to select the channel (down) while the right button increases or decreases to the value. Both buttons are clearly marked as to their function.

Servo Reverse
Press both access keys up to enter the programming. Now press the left access key up to select the servo reverse screen. Pressing the left key down will select each channel while the right key will reverse that channel.

Travel adjustment
Press the left access key up to select the travel adjust screen. Pressing the left key down, select the channel, while the right key is used to increase or decrease the travel amount.

Sub Trim
Press the left key up to select the sub-trim screen. Now pressing the left key down will select the channel and the right key is used to adjust the sub-trim position.

Guess what? You're all done programming, and you're ready to go fly! It's that simple!

This whole programming process takes about five minutes. That's less time than it would take to adjust the linkages of an airplane using a non-computer radio. And being able to make precise, minute adjustments (even at the field) at the touch of a button (or in this case two buttons) makes fine tuning the flight performance of your airplane a big advantage.

Summary of Features Easy-access programming levers Servo reversing on all channels Travel adjust for simple model set-up Sub-trim on all channels Extra 5th channel, ideal for more advanced models Premium Sanyo® NiCd TX battery packs R610 6-channel FM Reciever 2 model memory 3 character model naming Flaperon, delta and V-tail mixing Data reset High quality gimbals with adjustable control stick lengths Computer designed, ergonomically styled case Trainers system are compatible with all current JR transmitters
	Two-button programming is at the touch of your thumbs.
	The XF421EX includes a 600mAh Sanyo® transmitter pack that's both replaceable and removable.

Overview

Alot of "Sunday Flyers" can usually start out getting by on 4-channels just fine. Most of the airplanes they fly don't require any more than that. But then it happens. One day they walk into the hobby shop and "POW!" They see the most beautiful kit they've ever laid their eyes on, but it requires more channels and features than their trusty old 4-channel can provide. It is at this point that a modeler usually realizes the need for a programmable 6-channel system.

For those modelers, however, who have never owned a programmable system before, a 6-channel system with more programming functions than they really need could be confusing to use and actually get in the way of flying enjoyment. It is these modelers that the all-new 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 wing mixes (standard, flapperon, V-tail, or delta/elevon)

The programing switches on the XF631 are identical to those found on the XF421 and are positioned conveniently below the main power switch. With these two rocker switches, modelers can program the radio in a logical, intuitive manner.

The XF631 Flightpack includes four JRS537 BB servos, the advanced R700 FM Receiver, a 600mAh receiver pack, and a standard switch harness.

Digital trims and "Instant ID"

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. Modelers 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's flight pack includes the new lighter, narrower R700 Receiver and four of JR's new S537 standard BB servos. The S537 has improved accuracy and twice the space between bearings on the final output shaft for reduced wear and tear as compared to the S517. JR rounds out the flight pack with its standard 600mAh battery pack and switch.

The XF631 is one of the best-priced, easiest-to-use 6-channel airplane 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.

Digital Trim	Dual Rate	Model Name
Servo Reverse	Sub Trim	Travel Adjust

Overview

The JR XP8103 is really 3 radios in 1. With its extensive list of specific software features for airplane, helicopter, and gliders, it's a radio that can handle your entire fleet of models and any you may be thinking of adding to it. The XP8103 was also designed with the notion that modelers would rather spend more of their time flying instead of programming their radio. As a result the XP8103 is loaded with sophisticated features that not only enhance your flying experience but simplify it as well. These include:

• JR's 3+1 Digital Trims: JR's 3+1 Digital Trim arrangement utilizes Advanced Digital Trims on the roll, pitch, and yaw channels and a mechanical trim lever on the throttle channel - the setup most preferred by modelers we spoke to.
• Auto Trim Memory: Moving the digital trim switches automatically stores the new trim position in memory for that model. This allows switching between model set ups without having to reset trim position each time and prevents accidental displacement of trim position when the radio is off.
• Adjustable Trim Steps: This allows servo adjustment of 1 to 10 steps per "click" of the digital trim switches for fine or coarse adjustments of the trim position.
• Audible Trim Position Tones: Trim position and direction of movement is audibly indicated with "beeps" of varying frequency and tone whenever a digital trim switch is moved. This allows modelers to make in-flight trim adjustments without taking their eyes off the model.
• Easy-to-Read LCD Screen: Multi-point programmable curves, dual rates, and exponential settings are all graphically displayed to help take the guess-work out of getting the perfect mix.

• Wing Type - Normal, Flaperon, Delta
• Elevator to flap mixing
• Aileron to rudder mixing
• Landing mode with preset elevator compensation and flap position that can be set to automatically actuate at a given throttle position
• Snap roll in four directions - right up, left up, right down, left down
• Flap pot authority adjustment
• Spoiler channel switch/pot selection
• 6 free programmable mixes
• Aileron differential

• In-flight trim adjustment for each flight mode
• Four pre-programmed CCPM mixes
• Invert and pitch curve offset
• Acceleration mix tail rotor compensation
• Rudder offset position in hold
• Remote gyro gain adjustment capability
• Gyro rates can be altered for each flight mode (Normal, Stunt, Hold)
• Three free programmable mixes
• External pitch and hovering trim knobs
• Selectable gyro gain switch positions

• V-tail mixing
• Dual or single servo flap modes
• Flap channel switch or pot selection
• Elevator to flap mix with independent up and down values
• Aileron to flap mix with selectable switch positions
• Aileron differential
• Flap to elevator mix with independent up and down values with selectable switch positions and adjustable offset
• Flap to aileron mix with selectable switch positions and adjustable offset
• Aileron to rudder mixing with selectable swich position
• Butterfly/crow mode with two independently selectable settings and adjustable
• 6 free programmable mixes
• Count up and countdown timer
• Full-wing trailing edge options including the proportional operation of camber, reflex, crow, launch preset, normal and virtaully any desired trailing edge option imaginable

• 10-model memory
• Model reset
• Dual Pulse Code Modulation (S-PCM, Z-PCM, FM)
• Data transfer capabilities
• Compatible with JR's DataSafe PC Interface
• Dual rate on aileron, elevator and rudder w/graphic display
• Exponential on aileron, elevator and rudder w/graphic display
• Reversing on all 8 channels
• Travel adjust on all 8 channels
• Fail-safe, PCM modes only
• Trainer function with assignable channels to be transferred to the trainee
• Servo positions graphically depicted on LCD Screen

Look at the XP8103 as an investment in your modeling future. Whether your just getting into radio control or deep into it already, the JR XP8103 is one radio you will never outgrow.

Overview

The PCM 10X is JR's top-of-the-line radio system, engineered expressly for pilots looking for the absolute best in radio control. This radio features the most advanced hardware, and now software, in the radio control industry.

The 10X is housed in an all-new magnesium cast case for strength, style, and function. The case also features non-slip contoured backing for a firm, comfortable grip. The 10X features removable rubber tabs on the back of the transmitter, allowing easy access to gimbal spring tension adjustment. The included Sanyo® 1100 mAh NiCd can be charged in the transmitter, or easily removed and charged outside of the transmitter, courtesy of the charge jack that is built into the battery pack itself. The PCM 10X system also includes JR's Ultra Precision Digital Servo - the 8231. These servos have 5 times the holding strength of a regular analog servo. Features like these are exactly what you would expect from JR.

Features

JR's 3+1 Digital Trims offer greater precision for tricky maneuvers. The digital trims offer advantages for all pilots; in fact it was learned from a survey of the best U.S. scale pilots that digital trims offer advantages in all aspects of control, except throttle. JR responded by providing a mechanical trim on the throttle that is sure to be appreciated by all modelers. JR's 3+1 Digital Trim arrangement utilizes Advanced Digital Trims on the roll, pitch, and yaw channels and a mechanical trim lever on the throttle channel - the setup most preferred by modelers we spoke to.

While the JR 10X has an on-board memory of 10 models, it also includes DataSafe™, a revolutionary convenience in radio control technology. The PC interface software allows pilots to interface their radio with their Windows 95/98 or NT systems to store an infinite number of models. DataSafe can also save up to 200 models on a standard 3.5" floppy disk. You can even now exchange and e-mail model settings to your flying partner or to any pilot across cyberspace who has the DataSafe™ system and your type of transmitter.

Auto Trim Memory:

Moving the digital trim switches automatically stores the new trim position in memory for that model. This allows switching between model set ups without having to reset trim position each time and prevents accidental displacement of trim position when the radio is off.

Adjustable Trim Steps:

This allows servo adjustment of 1 to 10 steps per "click" of the digital trim switches for fine or coarse adjustments of the trim position.

Audible Trim Position Tones:

Trim position and direction of movement is audibly indicated with "beeps" of varying frequency and tone whenever a digital trim switch is moved. This allows modelers to make in-flight trim adjustments without taking their eyes off the model.

Software Updates:

The software upgrades of the PCM 10X are some of the most advanced available, but remain the most user-friendly. Enhanced dual rates, two multi-point throttle curves, and new gyro parameters are programmable making this system precise and versatile. And all of this is easy to manage on the large easy-to-read touch screen interface.

Dual Rates & Exponential:

Independent Dual Rates (five values are available when flight modes are activated) are independently adjustable for aileron, elevator and rudder for up/down and right /left, allowing each direction's throw to be independently fine tuned. This is especially helpful in getting the same pitch and roll rate with elevator and ailerons.

Independent Exponential Values (five values are available when flight modes are activated) are independently adjustable for aileron, elevator and rudder for up/down and right/left, allowing the fine tuning of the feel. This is helpful in matching the same feel for up/down and right/left.

Trim Rate:

Trims can be selected so that each of the five available flight modes has its own individual trims that are automatically selected and are adjusted through the digital trims. Or, Flight Mode Trim can be inhibited so the trims are the same in each flight mode: thus, adjusting the trim in one flight mode affects all flight modes.

Throttle Curves:

Two Multi-point throttle curves are available and up to 8 points can be programmed and manipulated to any desired throttle response. The two curves can be selected with Flight Modes or switches.

Gyro Programming:

Updated gyro system (code 44) allows up to three gyro gains to be selected and programmed via a switch or flight mode. A stick preferential program is available that automatically reduces the gyro gain as the control stick is displaced. Two gyros can be used on your choice of the three main control surfaces (rudder, elevator or aileron).

But this is just the tip of the iceberg. To really appreciate this exquisite radio, you need to see it for yourself at your local hobby shop.

Welcome to the future of radio control - The PCM 10X

Summary of Features:

• 10 model memory
• Comes with 4-DS8231 digital servos
• Simplified gyro programming.
• Dual Rates and Exponential values can be adjusted together or independently
• 5 easy to program flight modes
• Easy access for adjusting gimbal stick tension
• Intuitive touch screen programming
• 1100mAh transmitter battery standard
• Easy to remove Tx battery for charging in or outside the transmitters case.
• JR 3+1 Digital Trim System
• Flight mode-warning alarm that warns if the flight mode switch has be activated before the transmitter was turned on.
• Adjustable trim steps allows for the value of each step of the digital trim to be adjusted.
• Great Looking, Durable aluminum carrying case.
• Complete systems come with DataSafe® PC interface that allows model memory to be stored on your PC.