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    Home / RC / RC recievers / Expresslrs 2,4GHz / XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

    XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

    XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
    €39,70 €32,81 excl. VAT
    In stock (>5 pcs)
    Delivery to:
    27.05.2025
    Delivery offer

    Detailed information

    Product detailed description

    Radiomaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

    The Radiomaster XR4 Gemini Xrossband is a premium dual-band receiver designed for maximum reliability and performance in ExpressLRS systems. Featuring true diversity with two independent Semtech LR1121 RF chips and dual TCXO oscillators, it offers outstanding signal sensitivity, excellent signal-to-noise ratio (SNR), and robust stability even in challenging environments. Built-in Wi-Fi allows for convenient wireless firmware updates and configuration via WebUI.

    Key Features:

    • True Diversity & Dual-Band Operation – Two independent LR1121 RF chips ensure reliable reception and minimize signal loss

    • Supports Gemini and Xrossband Modes – Easily switch between single- and dual-band operation depending on your setup

    • Dual TCXO Oscillators – Deliver high frequency stability even with temperature fluctuations

    • Built-in Wi-Fi – Allows wireless firmware updates and configuration via WebUI

    • Optimized PCB Layout – Improves heat dissipation and ensures long-term reliability

    • High Telemetry Output – Up to 100 mW for strong and stable data transmission

    • Gemini Mode Compatibility – Enhances resistance to interference and provides a solid link

    Technical Specifications:

    • Model: XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

    • MCU: ESP32D4

    • RF Chip: 2× Semtech LR1121

    • Antennas: 2× 65 mm dual-band T antennas (U.FL)

    • Frequency Range: 2.4 GHz / Sub-G 900 MHz

    • Refresh Rate: Up to 500Hz / F1000Hz

    • Telemetry Output Power: Max. 100 mW

    • Input Voltage: DC 5.0 – 12.6 V

    • Weight: 1.7 g (excluding antennas)

    • Dimensions: 22 × 18 × 4 mm

    • Firmware: ExpressLRS v3.5.1 (pre-installed)

    • Firmware Target: RadioMaster XR4 2.4/900 Gemini RX

    • Bus: CRSF

    • Expansion Interface: UART

    Package Contents:

    • 1× XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

    • 2× 65 mm dual-band T antennas

    • 1× CRSF cable

    • 3× Heat shrink tubes

    • 1× User manual

    The Radiomaster XR4 Gemini Xrossband is the ideal solution for pilots seeking top-tier reliability, ultra-low latency, and exceptional range in a compact and lightweight form factor. Its advanced capabilities and easy integration make it a powerful addition to any modern FPV build.