Radiomaster GX15 Radio Controller (ELRS / M2)

£199.99

RadioMaster keeps widening its radio lineup, and the GX15 is the latest addition. Built for pilots flying RC airplanes, gliders, helicopters and other traditional aircraft, it pairs modern performance with a shape tuned for precision flying.

Pilots wanting a higher-spec configuration with AG02 CNC gimbals and premium aluminium controls will find the GX15 MAX alongside it.

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.

A 3.5-inch IPS touchscreen sits on top of the GX15, with 262K colours and up to 600 nits. Placed above the controls, it keeps telemetry, timers and flight information in view throughout the flight, so pilots can read critical data without a hand across the screen.

The high-performance STM32 H7 processor is a large step up in computing power over earlier generations. EdgeTX runs more smoothly, scripts execute faster and model switching is close to instant. Onboard flash plus support for external TF cards gives a dual-storage system that is both secure and flexible.

At the centre sit dual Semtech SX1281 transceivers, each putting out 250mW, carrying Gemini 2.4GHz ExpressLRS (ELRS). Built for modern aircraft and helicopter systems, the GX15 keeps latency low and supports ultra-fast update rates, F1000 among them with compatible receivers such as the Nexus-XR. Two integrated antennas behind the display, one horizontal and one vertical, add Gemini redundancy, polarization diversity and dependable signal, with none of the bulk of external antennas.

The standard version carries V6 Hall-effect gimbals and comes in five colours. A built-in cooling system holds performance steady through extended use, and USB-C covers charging, simulator connection, firmware updates and fast data transfer.

A smart battery management circuit improves efficiency and stretches operating time, and the built-in gyroscope opens up extra control inputs. Tilt can trigger logical switches, drive gimbal movement or call up telemetry voice prompts, adding flexibility with no extra hardware.

Interchangeable shoulder switch modules let pilots arrange controls to taste, including swapping switches for momentary buttons.

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

Specifications

• 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)

In the box

• 1 x GX15 Radio Controller
• 1 x GX15 Signature Carry Case
• 1 x 18650 Battery Tray
• 2 x Replacement Shoulder Panels
• 1 x Type-C Cable
• 1 x Screen Protector
• 1 x 1.5mm Hex Wrench
• 4 x Low Tension Gimbals Springs
• 2 x Gimbal Stick Set Screws
• 4 x 6mm Switch Delete Gromets
• 1 x Lanyard
• 1 x RadioMaster Sticker Set
• 1 x GX15 Manual
• 1 x Inventory Card