RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
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
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Package Includes
- 1 * XR4 Gemini Xrossband Dual-Band Receiver
- 2 * Dual-Band T-Antenna
- 1 * CRSF Wire
- 3 * Heat-Shrinkable Tube
- 1 * Manual Card
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.