RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
$39.99 USD
In stock
Key Features
-
📡 True Dual-Band Diversity
Dual LR1121 transceivers for simultaneous 2.4GHz & 900MHz operation
-
⚡ Gemini XrossBand Protocol
Advanced ExpressLRS technology for seamless band switching
-
🔧 Multiple Operation Modes
Switch between single-frequency or dual-band modes as needed
-
📶 High-Performance Antennas
Includes dual T-type antennas for optimal reception
-
🌐 WebUI Configuration
Built-in Wi-Fi for easy firmware updates and setup via browser
-
⚖️ Ultra-Compact Design
Only 1.7g without antennas - perfect for weight-sensitive builds
For more details and support, visit expresslrs.org.
Features
- True Diversity & Dual-Band
- Unmatched reliability with ExpressLRS Gemini Xrossband
- Compatible with ExpressLRS 2.4GHz, Sub-G 900MHz, Gemini & Gemini Xrossband (Gem-X)
- ESP32D4 high-performance MCU
- Twin Semtech LR1121 Transceiver
- Secondary UART port for advanced functionality
- Castled pads for easy soldering
Specification
- Item: XR4 Gemini Xrossband Dual-Band Receiver
- MCU: ESP32D4
- RF Chip: LR1121 x 2
- RF connector: IPEX-1 X 2
- Antenna: Dual-Band T Antenna x 2 (Included)
- Frequency Range: 2.4GHz / Sub-G 900MHz
- Telemetry Power: 100mw
- Maximum receive refresh rate: DK500Hz / K1000Hz
- Minimum receiver refresh rate: 50Hz
- Working voltage: DC 4.5 - 8.4V
- Weight: 1.7g (without antenna)
- Dimension: 22mm * 18mm * 4mm
- Firmware Version: ExpressLRS v3.5.1 pre-installed
- FW Target: RadioMaster XR4 2.4/900 Gemini RX
- Bus interface 1: CRSF
- Bus interface 2: UART
Weight
Dimensions
Download
Package Includes
- 1 * XR4 Gemini Xrossband Dual-Band Receiver
- 2 * Dual-Band T-Antenna
- 1 * CRSF Wire
- 3 * Heat-Shrinkable Tube
- 1 * Manual Card
