Radiomaster GX15 Radio Controller (ELRS / M2)

RadioMaster continues to expand its radio lineup with the introduction of the GX15. Designed for pilots who fly RC airplanes, gliders, helicopters, and other traditional aircraft, the GX15 combines modern performance with a form factor optimized for precision flying.

For pilots seeking a higher-spec configuration with AG02 CNC gimbals and premium aluminium controls, the GX15 MAX is also available.

Features

• High-Performance Processor: STM32 H7 processor delivers fast and responsive system performance.
• Touchscreen Display: 3.5-inch IPS touchscreen (480 × 320) with 262K colors and up to 600 nits brightness for clear outdoor visibility.
• Precision Gimbals: Equipped with V6 Hall-effect sensor gimbals for accurate and consistent control.
• Dual 2.4GHz ExpressLRS (Gemini): Powered by dual 250mW SX1281 transceivers, the GX15 delivers reliable Gemini performance while supporting ultra-fast ExpressLRS update rates, including F1000 operation with compatible receiver systems.
• Intelligent Battery Management: Optimizes power usage and extends operating time.
• Efficient Cooling System: Low-noise fan with aluminum heat sinks ensures stable operation in demanding conditions.
• Dual Integrated 2.4GHz Antennas: Internal horizontal and vertical antenna arrangement provides polarization diversity while maintaining a clean, antenna-free exterior.
• Built-in Microphone: Reserved for future feature expansion.
• Built-in Gyroscope: Enables tilt-based control inputs for switches, gimbals, and telemetry functions.
• Storage: Built-in flash memory with external SD card support.
• Interchangeable Shoulder Switches: Configurable control layout with replaceable switch modules.
• Multiple Color Options: Available in five color variants: White / Yellow / Red / Green / Blue.

The GX15 MAX features a top-mounted 3.5-inch IPS touchscreen with 262K colors and up to 600 nits brightness. Positioned above the controls, the display keeps telemetry, timers, and flight information easily visible throughout flight, allowing pilots to monitor critical data without their hands obstructing the screen.

Powered by a high-performance STM32 H7 processor, the GX15 MAX delivers a significant increase in computing performance over previous generations. The result is a smoother EdgeTX experience, faster script execution, and near-instant model switching. With onboard flash memory and support for external TF cards, the GX15 MAX offers a dual-storage system for secure and flexible data management.

At its core, the GX15 MAX features dual Semtech SX1281 transceivers supporting Gemini 2.4GHz ExpressLRS (ELRS). Designed for modern aircraft and helicopter systems, the GX15 MAX delivers low-latency control and supports ultra-fast update rates, including F1000 operation with compatible receivers such as the Nexus-XR. Working together with dual integrated antennas positioned behind the display in both horizontal and vertical orientations, the system provides Gemini redundancy, polarization diversity, and reliable signal performance while maintaining a clean form factor free from bulky external antennas.

The GX15 MAX is equipped with precision CNC-machined AG02 Hall sensor gimbals, delivering exceptional control feel, smooth operation, and long-term durability. Aluminum buttons, a CNC aluminum scroll wheel, and upgraded controls provide a solid and consistent interface throughout the radio. The carbon-look case completes the premium design while maintaining excellent balance and comfort during extended flying sessions.

A built-in cooling system with a low-noise fan and aluminum heat sinks ensures stable operation during extended use and demanding environmental conditions. The USB-C interface supports charging, simulator connectivity, firmware updates, and high-speed data transfer.

A smart battery management circuit improves efficiency and extends operating time, while the built-in gyroscope enables additional control inputs. Tilt-based functions can be used to trigger logical switches, control gimbal movement, or activate telemetry voice prompts—adding flexibility without additional hardware.

Interchangeable shoulder switch modules allow pilots to configure controls to their preference, including the option to replace switches with momentary buttons. The GX15 MAX combines the advanced performance of the GX15 platform with premium materials, AG02 CNC gimbals, and refined controls for pilots seeking the ultimate GX series experience.

Firmware Versions – FCC and EU LBT: Our stock is supplied with EU LBT firmware. Radios can be reflashed to FCC or vice versa, the hardware itself is not restricted. Please check the supported protocols below.

Standard FCC Version

• ELRS (FCC) is pre-installed witn ExpressLRS ISM FW (Max power is hardware dependant)

EU LBT Version

• ELRS LBT (Europe) Version is pre-installed with ExpressLRS CE EU domain LBT FW (Limited to 100mw power output)

Associated Products

• GX15 Max Radio
• AG02 CNC Hall sensor gimbals
• LED Gimbal Rings
• 18650 3200mAh 3.7V Battery
• 21700 5000mAh Battery
• Extended Adjustable Lanyard Hooks
• Switch Nut Tool
• Shorty360 Stick ends