Description
Experience exceptional control, long-range performance, and ultra-low latency with the RadioMaster RP3 ExpressLRS (ELRS) 2.4GHz Receiver, available at Multirotors. Designed for FPV pilots, racers, freestyle enthusiasts, and long-range drone builders, the RP3 combines advanced RF technology with a compact design to deliver a reliable and responsive radio link.
The RP3 is powered by the ESP8285 microcontroller and the Semtech SX1280 RF chip, utilizing the latest ExpressLRS (ELRS) 2.4GHz open-source firmware. This combination provides outstanding range, low latency, and dependable communication, making it ideal for demanding FPV applications.
To ensure stable performance in changing weather conditions and varying temperatures, the RP3 features a built-in Temperature-Compensated Crystal Oscillator (TCXO). The TCXO maintains highly accurate frequency stability, resulting in consistent signal quality and improved reliability throughout every flight.
For enhanced reception and telemetry performance, the RP3 integrates the Skyworks SE2431L RF front-end module, featuring a Low Noise Amplifier (LNA) for improved receiver sensitivity, a Power Amplifier (PA) capable of delivering up to 100mW telemetry output, and antenna diversity switching to maintain a stronger and more reliable connection in challenging environments.
Built-in Wi-Fi support allows quick firmware updates directly through your computer or mobile device without removing the receiver from the aircraft. The receiver also supports Bind Phrase, making setup faster and more convenient by eliminating the need for bind plugs or manual bind button procedures.
Whether you’re building a racing quad, freestyle drone, cinematic FPV platform, or long-range UAV, the RadioMaster RP3 provides the performance and reliability trusted by FPV pilots worldwide.

Features
- Optimized PCB design for better heat dissipation.
- LNA for better receiver range.
- PA for better telemetry range.
- Antenna Diversity for improved signal stability and range.
- Built-in a TCXO (temperature compensated crystal oscillator)
- Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS
Specification
- Item: RP3 Diversity Receiver
- Type: ISM
- MCU: ESP8285
- RF Chip: SX1281
- Telemetry RF power: Max 100mw
- Antenna: 65mm 2.4ghz T Antenna x 2
- Frequency Range: 2.404 – 2.479 Ghz
- Maximum receive refresh rate: 500Hz / F1000Hz
- Minimum receiver refresh rate: 25Hz
- Working voltage: DC 5V
- Weight: 4.6g (Including two antenna)
- Dimension: 22mm*13mm*4mm
- Firmware Version: ExpressLRS v3.0 pre-installed
- FW Target: RadioMaster RP3 Diversity 2400 RX
- Bus interface: CRSF
TCXO (temperature compensated crystal oscillator)
The TCXO ensures high stability and accuracy in frequency control, compensating for temperature variations. This results in consistent and reliable signal reception, even in extreme temperature conditions. It also reduces frequency drift over time, providing long-term frequency stability and preventing signal degradation. Click to learn more about the TCXO.



Size

Package Includes

RP3 Receiver is installed with ExpressLRS as standard.
ExpressLRS is an open-source, high-performance radio control link that delivers exceptional range and low-latency communication using advanced LoRa technology. It’s highly customizable and perfect for RC enthusiasts looking for reliability and efficiency.
Pair your ExpressLRS with Radiomaster’s top-tier transmitters and receivers. Radiomaster products are designed to maximize the benefits of ExpressLRS, offering state-of-the-art performance for your RC adventures. Upgrade your RC experience with the unbeatable combination of ExpressLRS and Radiomaster—engineered for excellence and tailored for you.
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