GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver
GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver - Image 2
GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver - Image 3
GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver - Image 4
SKU: DRFC-3265
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GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver

₹5,879.00 (Inclusive of all taxes)
Out of Stock

The GEPRC Gemini Xrossband Receiver is a dual-band ExpressLRS receiver featuring dual Semtech LR1121 RF chips for simultaneous 915MHz and 2.4GHz operation, delivering long-range, low-latency control for FPV drones and RC aircraft.

Features

  • Dual Semtech LR1121 chips enable true simultaneous dual-band (915MHz + 2.4GHz) ExpressLRS operation.
  • Supports 915MHz Gemini, 2.4GHz Gemini, and dual-band modes for flexible frequency selection.
  • Adjustable refresh rates from 25Hz to 1000Hz for optimized latency and range.
  • Integrated TCXO crystal ensures stable frequency accuracy across temperature variations.
  • Up to 100mW telemetry output power enhances long-range communication reliability.

Out of stock

Description

The GEPRC Gemini Xrossband Receiver is engineered around an ESP32-PICO-D4 processor and dual Semtech LR1121 RF chipsets, providing a robust foundation for advanced dual-band communication. This architecture allows the receiver to operate on 915MHz and 2.4GHz bands simultaneously or independently, offering pilots unparalleled signal redundancy and interference resistance in complex RF environments.

Its compact, lightweight design integrates a TCXO for precise frequency stability and supports WiFi-based firmware updates for rapid feature deployment. The receiver is compatible with existing ExpressLRS 915MHz and 2.4GHz transmitter modules, making it a versatile upgrade for long-range FPV, fixed-wing, and high-performance RC applications requiring maximum link integrity.

Key Features

  • Dual-band ExpressLRS receiver with simultaneous 915MHz and 2.4GHz operation via dual LR1121 chips.
  • ESP32-PICO-D4 processor enables high-speed processing and WiFi firmware updates.
  • TCXO (Temperature Compensated Crystal Oscillator) ensures consistent frequency performance from -20°C to +60°C.
  • Configurable refresh rate from 25Hz to 1000Hz balances between ultra-low latency and extended range.
  • High-power telemetry output up to 100mW strengthens the return link for long-distance flights.
  • Compact footprint (18 x 23.6 x 5.7 mm) and low weight (1.7g) minimize impact on drone build weight and balance.
  • IPEX1 (U.FL) antenna connectors and SH1.0 signal connector provide reliable, standardized interfaces.

Applications

  • Long-range FPV drone builds requiring robust, redundant control links in congested 2.4GHz environments.
  • Fixed-wing and wing aircraft missions where extended telemetry range and signal penetration are critical.
  • High-performance racing or freestyle drones where low-latency, high-refresh-rate control is prioritized.
  • Heavy-lift or mapping drones where dual-band redundancy enhances operational safety and reliability.
  • Any RC vehicle build upgrading to ExpressLRS Gemini protocol for advanced frequency agility and interference resistance.

Technical Specifications

ProcessorESP32-PICO-D4
RF ChipsetDual Semtech LR1121
Frequency Bands915MHz Gemini, 2.4GHz Gemini, 915MHz + 2.4GHz Dual-Band
Refresh Rate25Hz – 1000Hz
Telemetry PowerUp to 100mW
Operating Voltage5V DC
Crystal OscillatorTCXO (Temperature Compensated Crystal Oscillator)
Antenna ConnectorIPEX1 (U.FL)
Signal ConnectorSH1.0
Impedance50Ω
Firmware UpdateWiFi Supported
Operating Temperature-20°C to +60°C
Dimensions18 x 23.6 x 5.7 mm
Weight1.7g

Frequently Asked Questions

What is the primary advantage of the dual-band Gemini operation?

The dual-band Gemini mode allows the receiver to operate simultaneously on both 915MHz and 2.4GHz frequencies. This provides inherent signal redundancy, significantly improving link reliability by allowing the system to maintain a connection on one band if the other experiences interference or signal degradation, which is crucial for long-range and mission-critical flights.

How do I update the firmware on this receiver?

The receiver features a built-in ESP32 processor with WiFi support, enabling wireless firmware updates. You can connect to the receiver's access point via a web browser to flash the latest GEPRC Gemini Xrossband RX firmware, eliminating the need for physical USB connections and simplifying the update process in the field.

What is the operating voltage, and how should I power it?

The receiver operates on 5V DC. It should be powered from a regulated 5V BEC output on your flight controller or ESC, or via a dedicated 5V regulator. Ensure your power source can provide clean, stable voltage to prevent brownouts or interference with the RF performance.

Is this receiver compatible with my existing ExpressLRS transmitter module?

Yes, it is compatible with existing ExpressLRS transmitter modules that support the Gemini protocol on 915MHz, 2.4GHz, or both. You must ensure your transmitter module firmware is updated to a version that supports Gemini operation to unlock the full dual-band functionality.

Package Includes

  • 1 x GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver
  • 2 x 915M/2.4G Dual-band T-Antennas
  • 1 x Heat shrink tube
  • 1 x 4-pin silicone connect cable
  • 1 x User manual

Additional Information

Weight 0.0017 kg
Dimensions 2.36 × 1.8 × 0.57 cm

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