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Radiomaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver

Communication & Data Links
by Peryton

Description

The Radiomaster XR3 is an ultra-compact ExpressLRS receiver measuring just 20 x 15mm, featuring true antenna diversity and multi-frequency operation across 2.4GHz and 900MHz bands. Powered by the advanced Semtech LR1121 transceiver and ESP32C3 MCU, it delivers exceptional range and signal resilience for FPV drone racing and aerial applications. With built-in Wi-Fi for configuration and 100mW telemetry power, it's designed for elite pilots requiring maximum link reliability in demanding environments.

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
Product status
In Production
Model number / Variant
XR3
Name
Radiomaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver

Product Classification

Link roles
Command & Control (C2) Telemetry
System type
RF Radio Transceiver
Supported platform classes
sUAS
Operating environment
Airborne
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)
Frequency agility/hopping
Spectrum licensing
Unlicensed/ISM

Data & Performance

Modulation/Coding
Custom/Proprietary
Range conditions
Line-of-sight conditions for FPV drone applications

Interfaces & Protocols

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

Security

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

Power & Physical

Power options
DC
Mounting options
Airframe/Internal
Included antenna types
Omnidirectional
Input voltage range (V)
4.5 - 8.4V
Weight (g)
1
Dimensions (mm)
22 x 15 x 4

Software & Management

Configuration methods
Web UI
Telemetry/Integration
MAVLink
OTA firmware updates

Compatibility & Integration

Autopilot compatibility
ArduPilot PX4 Other
GCS compatibility
QGroundControl Mission Planner Other
Interoperability standards
Proprietary
Integration notes
Features built-in Wi-Fi for configuration, CRSF and UART interfaces, antenna diversity with dual IPEX-1 connectors, and supports ExpressLRS protocol with up to 1000Hz refresh rates

Certifications & Compliance

Certifications/Marks
FCC CE
Spectrum approval regions
US EU Global