Overview:
The RadioMaster GX15 is a premium full-size radio transmitter designed for pilots of fixed-wing aircraft, gliders, helicopters and other traditional RC models. It combines a powerful STM32 H7 processor with EdgeTX, dual 2.4GHz ExpressLRS Gemini technology and V6 Hall-effect gimbals for precise, responsive control.
The GX15 uses dual SX1281 transceivers to provide Gemini 2.4GHz ExpressLRS operation, with each RF path capable of up to 250mW output. Its integrated horizontal and vertical antennas provide polarisation diversity while keeping the exterior of the transmitter clean and free from external aerials. Compatible receivers can also take advantage of ultra-fast ExpressLRS update rates, including F1000 operation.
A 3.5-inch IPS screen provides a bright, colourful touchscreen interface for model setup, telemetry and flight information. The STM32 H7 processor provides fast EdgeTX operation and rapid model switching, while 512MB of built-in flash storage and external microSD support provide flexible storage options.
A smart battery management circuit improves efficiency and extends operating time. 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.
The GX15 also features interchangeable shoulder switch modules, allowing the control layout to be customised to suit individual preferences. A built-in cooling system with a low-noise fan and aluminium 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.
Available in White, Blue, Yellow, Red and Green, the GX15 combines a capable feature set with a choice of five distinctive finishes.
Features:
- USB-C interface supports both charging and use on flight simulators
- Dual 2.4GHz ExpressLRS Gemini system with dual RF paths.
- Dual integrated antennas arranged horizontally and vertically for polarisation diversity.
- Supports ultra-fast ExpressLRS update rates, including F1000 with compatible receivers.
- Powerful STM32 H7 processor for fast EdgeTX operation.
- 3.5-inch IPS touchscreen with 262K colours and up to 600 nits of brightness.
- Interchangeable shoulder switch modules allow the control layout to be customised.
- Shoulder switches can be replaced with optional momentary button modules.
- Built-in gyroscope enables tilt-based control functions.
- Low-noise cooling fan and aluminium heatsinks for efficient thermal management.
- Intelligent battery management system helps optimise power consumption.
- Built-in flash storage with external microSD card support.
Specification:
- Model: Radiomaster GX15
- 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 (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: Built-in
- Built-in Microphone: Yes (Future expansion)
- Built-in Motion Sensor: Yes
- Display: 3.5-inch IPS touchscreen (480 x 320 resolution)
- Battery options (not included): 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery
- Connectivity: USB-C
- Gimbals: V6 Hall sensor gimbals
- Gimbal Sticks: M4
- Module Bay: JR size
- Dimensions: 178*168*81mm
- Weight: 681g (without battery)
- Available colours: Red, Blue, Yellow, Green, White
Included:
- 1x RadioMaster GX15 Transmitter
- 1x GX15 Signature Carry Case
- 1x 18650 Battery tray (batteries not included)
- 2x Replacement shoulder panels
- 1x USB-C cable
- 1x Screen protector
- 1x 1.5mm hex wrench
- 4x Low-tension gimbal springs
- 2x Gimbal stick set screws
- 4x 6mm switch delete grommets
- 1x Lanyard
- 1x GX15 manual
