Package include:
- 1 x RadioMaster GX15 Standard Radio (Desert Yellow)
- 1 x Nexus-XR Helicopter Flight Controller (Red)
1. RadioMaster GX15 Radio Controller
One GX15 platform. Two ways to fly.
Both versions share the core GX15 processing, RF, display, cooling, antenna and connectivity platform. Choose Standard for the complete GX15 experience with V6 Hall sensor gimbals, or step up to Max for AG02 CNC gimbals, RGB lighting and premium exterior details.

GX15 Standard
Red / Yellow / White / Blue / Green
Shared GX15 Platform
Power and RF Performance The features below are common to both GX15 Standard and GX15 Max.
STM32 H7 Processor
At the heart of both GX15 versions is an STM32 H7 processor - the core processing platform behind the next generation GX15 experience.
Gemini 2.4GHz ExpressLRS
Both versions use Gemini 2.4GHz ExpressLRS with dual Semtech SX1281 RF chips, built around signal stability, link quality and low latency.
Signal Stability | Link Quality | Low Latency
See More. Stay Cool. A bright top-mounted display and dedicated thermal management are standard across the GX15 family.
Top-Mounted 3.5-Inch Color Touchscreen
The GX15 display is positioned at the top of the radio for easy viewing and is rated at 262K colors and 600 nits for visibility in bright conditions.
Powerful and Efficient Cooling
Low-noise, high-output fans and an aluminum heat sink help keep the radio cool, even during demanding use.
Integrated and Connected GX15 keeps the exterior clean while supporting the everyday connections pilots need.
Integrated Dual Antennas
Dual antennas are integrated into the radio body, combining a compact exterior with the GX15 Gemini RF architecture.
Single USB Type-C Port
One USB Type-C connection supports three everyday functions.
Data Transmission | Charging | Simulator
Dimensions and Package Contents Shared sizing, with package graphics shown for each version.
Shared GX15 Dimensions
Both versions use the same overall dimensions shown by RadioMaster: 168 mm wide, 178 mm tall and 81 mm deep.
Control Layout - Designed Around the Pilot
Both versions share the GX15 control philosophy, while Max adds customizable RGB around the gimbals.
GX15 Standard
System button, 4-direction navigation key, S1/S2 potentiometers, scroll wheel, six customizable RGB buttons, built-in microphone and expansion support.
GX15 Standard
Everything You Need The complete GX15 experience with V6 Hall sensor gimbals and five bold color options.
V6 High-Precision Hall Sensor Gimbals
GX15 Standard uses V6 High-Precision Hall Sensor Gimbals for precise stick input within the shared GX15 platform.
Five Standard Colors
Choose from five distinctive finishes.
Red | Yellow | White | Blue | Green
Practical Details Useful hardware and expansion features built around the Standard housing.
Built for Everyday Use
Standard highlights shown by RadioMaster include replaceable shoulder panels and switch-delete grommets, smart active balance charging, external module support, an anti-slip back grip, multi-stand attachment points, built-in flash memory and external SD card support.
Version-Specific Feature - Motion Control
RadioMaster uses different feature labeling for the two versions.
GX15 Standard
Built-In Motion Sensor
Which GX15 Is Right for You?
Choose GX15 Standard
- V6 Hall sensor gimbals
- Five bright color options
- Complete GX15 core performance and connectivity
Final Details - Package Contents
Standard package
2. RadioMaster Nexus-XR
The Nexus-XR revolutionizes helicopter flight controllers by integrating a cutting-edge ExpressLRS receiver with dual Semtech SX1281 2.4GHz transceivers. This built-in receiver delivers exceptional RF performance, superior range, reliability, and effortless setup. It eliminates the need for external receivers, simplifying installation and reducing weight.
At the core of the Nexus-XR is the powerful STM32F722 MCU, paired with the ICM42688P 6-axis MEMS motion-tracking device. This device provides excellent vibration resistance and enhanced signal rejection, making it ideal for electric and nitro helicopters.
The Nexus-XR features several key upgrades. An improved BEC delivers more stable power to electronics, enhancing reliability, while the external voltage input now supports a range of 3.6V to 70V. Memory has been upgraded to 256MB, enabling longer flight logs. The CNC-machined aluminum case is sleeker yet still serves as a protective shield and heat sink, keeping the system cool during intense flights.
Designed for ultimate convenience, the Nexus-XR’s compact, rugged build fits a wide range of helicopter sizes, and delivers top performance in demanding conditions.

Launch Video
Features
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Integrated ExpressLRS Receiver: Dual Semtech SX1281 2.4GHz transceivers for seamless RF performance, eliminating the need for an external receiver.
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Optimized for Rotorflight 2.2: Engineered for peak performance and compatibility.
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Precision Control: STM32F722 MCU and ICM42688P 6-axis gyroscope/accelerometer for superior flight dynamics.
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Flight Logging: 256MB onboard flash memory for detailed logging and tuning.
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Dual Antenna Design: Two 65mm wire antennae for superior signal strength and range.
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Versatile Connectivity: Multiple UART ports support CRSF, ELRS, S.BUS, and more.
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More PWM Pins: Additional pins for expanded control in complex setups.
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CNC-Machined Aluminum Case: Sleek, rugged design doubles as a heat sink to keep the system cool.
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Tail Servo/ESC Support: Compatible with 760μs/1520μs tail servos and ESCs.
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12V Servo Support: Capable of supporting 12-volt servos.
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Wide Voltage Range: Supports 3.6V–70V external power input for flexible setups.
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Improved BEC: Stable, reliable power delivery to electronics for enhanced performance.
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Isolated Power Supplies: Dedicated 1.8V (gyro), 3.3V (MCU), and 5V (interfaces) to minimize noise.
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USB-C Accessibility: Lightweight, flexible USB-C extender cable for easy access in tight builds.
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Compact and Lightweight: Ideal for any helicopter builds.
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Rotorflight Rescue: Standard feature for enhanced safety in emergencies.
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Optional Case Color: Grey / Gold / Red / Blue / Purple.
Specification
- Item: Nexus-XR Helicopter Flight Controller
- Firmware: Rotorflight 2.2
- MCU: STM32F722RET6
- Gyro (IMU): ICM42688P
- Flash Memory (Black Box. IC): 256MB (W25N02KVZEIR)
- Barometer: SPL06-001
- Uart: 5 - S.BUS[UART1], TELEM[UART2], PORT-A[UART4], PORT-B[UART6], PORT-C[UART3]
- Servo: S1, S2, S3, TAIL Servos (Up to 12V )
- Rpm Sensor: 1 - FROM ESC FREQUENCY SENSOR
- AUX: 1
- Ext voltage input (tele): 3.6-70v
- Receiver Support: CRSF, ELRS, GHOST, S.BUS, SUMD, IBUS, XBUS, EXBUS, PPM, MSP
- Voltage Supply(DC): 5 - 16V
- A-B-C Serial Port Power Output: 5V - 1.5A
- Telemetry: S.BUS, HoTT, S.Port, MSP, EDGETX, ELRS
- ESC: PWM, Oneshot, Multishot, Dshot
- Support Tail ESC: 760μs / 1520μs Servo
- Support Tail Motor: Yes
- Internal Receiver: RP4TD-M ExpressLRS 2.4GHz Mini True Diversity Receiver
- MCU: ESP32
- Type: ISM
- RF Chip: SX1281 x 2
- Antenna: 65mm 2.4GHz Wire Antenna x 2
- Frequency Range: 2.4GHz
- Maximum Refresh Rate: 500Hz / F1000Hz
- Telemetry RF Power: Max 2 x 10mW
- Wifi Updates: Yes
- FW Target: RadioMaster RP4TD-M 2400 RX
- Bus interface: CRSF
- Demensions: 44.70 x 26.50 x 14.30mm
- Weight: 24.1g






Dimensions

Overview

Weight

User Manual
Package Includes
- 1 * NEXUS-XR Helicopter Flight Controller
- 3 * JST-GH 4 Wire pigtail cables
- 1 * JST-GH to Servo Plug (dupont 3 pin connector)
- 1 * Ultra light-weight and flexible USB-C extender
- 1 * Type C extension cable
- 1 * JST-ZH1.5 "DSM" Telemetry cable (Telemetry only does not support DSM Receivers)
- 1 * Voltage telemetry wire
- 3 * 3M double-sided mounting tape
- 2 * Heat shrink tubing
- 1 * Inventory Card
