JR 28X Transmitter

This high-end radio runs on Android. Article, photos, and video by Mike Hurley. Read the full article in the August 2015 issue of Model Aviation.


Read the full article in the August 2015 issue of Model Aviation.

Features

• 480 x 273-pixel, 4.3-inch WQVGA-TFT full-color touch screen • Android OS • Dual processors: one manages the operating system, while the other manages the radio • CNC-machined aluminum gimbals are ball bearing supported and fully adjustable to suit any pilot • 65,536 step stick resolution • 4 GB internal memory, with 512 MB RAM • Removable, customizable shoulder switch plates can be configured to virtually any combination of switches • Heavy-duty, cast-aluminum chassis • 28 channels: up to 16 non-shared, up to 28 fully proportional • Integrated USB host controller and USB device port • External SD card slot for unlimited model, picture, sound, and telemetry data storage • Customizable audio and vibration notifications

Specifications

Frequency: 2.4 GHz Protocol: DMSS Dual Modulation Spread Spectrum Input power: Single 7.2-volt lithium battery with second battery capability Display: 4.3-inch full color TFT touch-screen display Number of channels: 28 and expandable with XBus system Resolution: Stick resolution is 65,536 steps Frame rate: 16 channels at 14 ms; 12 channels at 28 ms Price $ 2,699.99

RGO31BX Infinity Receiver Specifications

Channels: unlimited, expandable, for use with XBus only Weight: 7 grams Size: 1.32 inches long; width: 1.18 inches; height: 0.37 inches Antenna length: Two satellites each with a single 6.5-inch antenna, one telemetry transmitter all on 6-inch leads

In the Box

Transmitter with battery Carrying case Infinity receiver package Charger with international adapters JR-formatted 4 GB SD card Neck strap Bind plugs Allen wrenches for adjustments Decal sheet Manual

Pluses

• High-quality materials and construction with aluminum chassis. • Smooth operation CNC-machined aluminum gimbals supported with ball bearings. • Extremely precise stick resolution. • Cutting edge user interface and operating system, completely customizable to user preference. • Ease of use and programming. • Expanded programming capabilities.

Minuses

• Limited voice output. • No signal strength telemetry. • Gimbal adjustments require additional parts not included with the radio.

Photos

Read the full article in the August 2015 issue of Model Aviation