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XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

Communication & Data Links
by Peryton

Description

The XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver is a high-performance radio receiver featuring dual LR1121 RF transceivers that support both 2.4GHz and 900MHz bands. It utilizes the ExpressLRS Gemini Xrossband protocol (Gem-X) for exceptional link reliability and stability. With true diversity dual-band capability, ultra-low latency, and high refresh rates, it's designed for mission-critical drone and fixed-wing applications where secure, robust RF connectivity is essential.

About the Company

Peryton

Peryton is a drone technology company specializing in FPV (First Person View) drones and drone components. They offer a range of drone products, services, and custom drone solutions for enthusiasts...

Core Information

Serving industries
Air Ground
Model number / Variant
XR4
Name
XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
Release/Launch year
2025
Product status
In Production

Product Classification

Link roles
Command & Control (C2) Telemetry
System type
RF Radio Transceiver
Supported platform classes
sUAS UGV Ground Control Station
Operating environment
Airborne Ground
Link topology
Point-to-Point
LOS/BLOS capability
LOS
Duplexing modes
Half‑Duplex

Frequency & Spectrum

Frequency bands
2.4 GHz ISM 900 MHz ISM
Regional spectrum compliance
FCC (US) CE/ETSI (EU)
Spectrum licensing
Unlicensed/ISM
Frequency agility/hopping

Data & Performance

Modulation/Coding
Custom/Proprietary

Interfaces & Protocols

Physical interfaces
Serial UART GPIO
Control/Telemetry protocols
MAVLink
Antenna connectors
U.FL
Number of antenna ports
2

Security

Encryption standards
AES‑128 AES‑256
Authentication methods
Pre‑Shared Key (PSK)
Key management
Pre‑Shared
Anti‑jam/Resilience features
FHSS
Export control classification
EAR99

Power & Physical

Power options
DC
Mounting options
Airframe/Internal
Included antenna types
Omnidirectional
Weight (g)
1
Input voltage range (V)
4.5 - 8.4
Dimensions (mm)
22 x 18 x 4

Software & Management

Configuration methods
Web UI
Telemetry/Integration
MAVLink
OTA firmware updates

Compatibility & Integration

Autopilot compatibility
ArduPilot PX4
GCS compatibility
QGroundControl Mission Planner
Interoperability standards
Proprietary
Integration notes
Compatible with ExpressLRS 2.4GHz, Sub-G 900MHz, Gemini & Gemini Xrossband (Gem-X) protocols

Certifications & Compliance

Certifications/Marks
CE FCC
Spectrum approval regions
US EU