RadioMaster XR4 Gemini Xrossband ELRS 2.4GHz/900MHz Dual-Band Diversity Receiver
RadioMaster XR4 Gemini Xrossband ELRS 2.4GHz/900MHz Dual-Band Diversity Receiver
The XR4 Receiver is a dual-band solution with dual LR1121 RF transceivers, supporting the advanced ExpressLRS Gemini Xrossband protocol (Gem-X). It operates on 2.4GHz and Sub-G 900MHz with dual T-type antennas for superior reception and stability. With two RF circuits, it supports Gemini single-frequency and Xrossband dual-band modes.
A built-in Wi-Fi module allows easy firmware updates and configuration via WebUI. Compact, lightweight, and designed for ultra-low latency, the XR4 ensures a stable RF link, making it perfect for drones and fixed-wing models in demanding environments.
Features:
Compact and Lightweight
Versatile Operation Modes
Integrated Wi-Fi Module
Dual T-Type Antennas
True Diversity Design
Dual-Band Support
Advanced Protocol
Ultra-Low Latency
High Refresh Rate
Reliable RF Link
Specification:
Maximum Receive Refresh Rate: DK500Hz / K1000Hz
Firmware Version: ExpressLRS v3.5.1 pre-installed
Antenna: Dual-Band T Antenna x 2 (Included)
Frequency Range: 2.4GHz / Sub-G 900MHz
Item: XR4 ExpressLRS Xrossband Receiver
Firmware Target: XR4 2.4/900 Gemini RX
Minimum Receiver Refresh Rate: 50Hz
Dimensions: 22mm x 18mm x 4mm
Working Voltage: DC 5.0 - 12.6V
Weight: 1.7g (without antenna)
Telemetry Power: 100mW
RF Chip: Semtech LR1121
RF Connector: IPEX-1 x 2
Bus Interface 2: UART
Bus Interface 1: CRSF
MCU: ESP32D4
Weight
Dimensions
Package Includes:
1 * XR4 Gemini Xrossband Dual-Band Receiver
2 * Dual-Band T-Antenna
1 * CRSF Wire
3 * Heat-Shrinkable Tube
1 * Manual Card
