RadioMaster GX15 2.4GHz ExpressLRS Radio Controller
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RadioMaster expands its radio lineup with the GX15, a versatile transmitter designed for RC airplanes, gliders, helicopters, and traditional aircraft. Combining modern performance with a precision-focused design, the GX15 delivers a reliable flying experience.
For pilots looking for upgraded controls and premium materials, the GX15 MAX with AG02 CNC gimbals and aluminum components is also available.

Top-Mounted 3.5-inch IPS Touchscreen
The GX15 features a top-mounted 3.5-inch IPS touchscreen with 262K colors and up to 600 nits brightness. The elevated display keeps telemetry, timers, and flight information clearly visible during flight for quick and easy monitoring.


STM32 H7 Processor & Flexible Storage
Powered by an STM32 H7 processor, the GX15 delivers faster response, smoother EdgeTX performance, and quicker model switching. Built-in flash memory and TF card support provide flexible storage for models, settings, and files.

Dual 2.4GHz ExpressLRS Gemini System
The GX15 features dual Semtech SX1281 transceivers with 250mW output power, supporting Gemini 2.4GHz ExpressLRS (ELRS) for low-latency control and ultra-fast update rates up to F1000. Dual integrated antennas provide redundancy and polarization diversity while maintaining a clean exterior design.


Cooling System & USB-C Connectivity
The GX15 features an integrated cooling system for stable performance during extended use. The USB-C port supports charging, simulator connection, firmware updates, and high-speed data transfer.




Smart Battery Management & Built-in Gyroscope
The GX15 features smart battery management for improved efficiency and longer operating time. The built-in gyroscope enables tilt-based controls for logical switches, gimbal functions, and telemetry features without additional hardware.

Modular Shoulder Switches
Interchangeable shoulder switch modules allow pilots to customize their control layout and replace switches with momentary buttons based on their preferences.

Features
- High-Performance Processor: Powered by an STM32 H7 processor for fast and responsive system performance.
- 3.5-inch IPS Touchscreen: 480 × 320 resolution display with 262K colors and up to 600 nits brightness for clear outdoor visibility.
- Precision V6 Hall Gimbals: Equipped with V6 Hall-effect sensor gimbals for smooth, accurate, and consistent control.
- Dual 2.4GHz ExpressLRS Gemini System: Featuring dual 250mW SX1281 transceivers, the GX15 supports Gemini technology and ultra-fast ELRS update rates, including F1000 mode with compatible receivers.
- Smart Battery Management: Optimized power efficiency helps extend operating time.
- Advanced Cooling System: Low-noise fan and aluminum heat sinks maintain stable performance during extended use.
- Integrated Dual Antennas: Internal horizontal and vertical 2.4GHz antennas provide polarization diversity while keeping a clean exterior design.
- Built-in Microphone: Reserved for future feature expansion.
- Integrated Gyroscope: Supports tilt-based control inputs for switches, gimbals, and telemetry functions.
- Flexible Storage: Built-in flash memory with external SD card support.
- Modular Shoulder Switches: Replaceable switch modules allow customizable control layouts.
- Multiple Color Options: Available in White, Yellow, Red, Green, and Blue.
Specification
| Item | GX15 Radio |
| Color | White / Yellow / Red / Green / Blue |
| Voltage Range | 6.6 - 8.4V DC |
| Current | 850mA (at max output power) |
| Frequency | 2.400GHz |
| Internal RF | ExpressLRS 2.4GHz |
| Channels | Max 16 channels (Receiver dependent) |
| Radio Firmware | EdgeTX (Transmitter) (requires version 2.12.0 or higher) |
| Built-in Flash Storage | 512MB |
| MicroSD Card (Not included) | 32GB/FAT32 (Inserting a MicroSD card will disable the onboard flash) |
| Cooling Fan | Yes |
| Built-in Microphone | Yes (Future expansion) |
| Built-in Motion Sensor | Yes |
| Display | 3.5-inch IPS touchscreen (480 x 320 resolution) |
| Battery | 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included) |
| Connectivity | USB-C |
| Gimbals | V6 Hall sensor gimbals |
| Gimbal Sticks | M4 |
| Upgrade Method | USB-C (UF2) |
| Module Bay | JR-compatible module bay for additional modules |
| Dimensions | 178*168*81mm |
| Weight | 681g (without battery) |
Package Includes
- 1 * GX15 Radio Controller
- 1 * GX15 Signature Carry Case
- 1 * 18650 Battery Tray
- 2 * Replacement Shoulder Panels
- 1 * Type-C Cable
- 1 * Screen Protector
- 1 * 1.5mm Hex Wrench
- 4 * Low Tension Gimbals Springs
- 2 * Gimbal Stick Set Screws
- 4 * 6mm Switch Delete Gromets
- 1 * Lanyard
- 1 * RadioMaster Sticker Set
- 1 * GX15 Manual
- 1 * Inventory Card