RadioMaster RP3-H ELRS 2.4G Nano Receiver for Nexus Helicopter Flybarless & CRSF/S.BUS Flight Controllers

Introduction

The RadioMaster RP3-H ELRS 2.4G Nano Receiver is a cutting-edge component engineered for FPV helicopter enthusiasts and drone pilots requiring precise, reliable control. Specifically designed to integrate seamlessly with the Nexus Helicopter Flybarless control unit, it also boasts broad compatibility with all flight controllers supporting the CRSF or S.BUS protocols. This receiver addresses the need for stable, high-performance signal acquisition in demanding aerial applications, ensuring an enhanced and more responsive flight experience.

Key Advantages

• Enhanced Signal Stability: Features a built-in TCXO (Temperature Compensated Crystal Oscillator) for superior signal accuracy and consistency.
• Robust Construction: Comes with an integrated, durable housing, making it ready for installation in modern helicopter frames and providing increased resilience.
• Extended Range & Low Latency: Utilizes ESP8285 MCU and SX1281IMLTRT RF Chip for LoRa and FLRC 2.4 GHz RF links, delivering exceptional range and minimal latency.
• Improved Telemetry: Incorporates a Skyworks SKY66112 power amplifier for up to 100mW telemetry output and antenna switching diversity.
• Antenna Diversity: Equipped with two antennas for improved signal reception, stability, and overall range.
• Plug-and-Play: Offers solder-free, plug-and-play connectivity for NEXUS Heli flight controllers, simplifying installation.
• Firmware Updates via Wi-Fi: Integrated Wi-Fi allows for easy firmware updates without needing to disassemble the receiver.
• External Battery Telemetry Input: Features an Ext-V telemetry input for compatibility with older ESCs lacking direct battery voltage telemetry.

Technical Specifications

• Item: RP3-H ExpressLRS 2.4GHz Nano Receiver
• Type: ISM
• MCU: ESP8285
• RF Chip: SX1281
• Telemetry Radio Power: Max. 100mW
• Antenna: 2 x 150mm 2.4GHz Antenna
• Frequency Range: 2.404 - 2.479 GHz
• Max. Receiver Refresh Rate: 500Hz / 1000Hz
• Min. Receiver Refresh Rate: 25Hz
• Operating Voltage: DC 4.5 - 8.4V
• Battery Voltage Detection Range: DC 4.0 - 35V
• Weight: 5.1g (including antennas)
• Dimensions: 28mm x 24mm x 8mm
• Pre-installed Firmware: ExpressLRS v3.3.1
• FW Target: RadioMaster RP3-H Diversity 2400 RX
• Bus Interface: CRSF/S.Bus

Applications

This receiver is ideal for FPV helicopters, advanced UAV builds, drone racing, and any application requiring a robust, high-performance serial receiver in a compact and durable form factor. Its features make it suitable for demanding flight conditions and precision control tasks.

Compatibility

Compatible with all ExpressLRS 2.4GHz modules and transmitters with built-in ExpressLRS 2.4GHz. Supports CRSF and S.BUS bus interfaces. Can detect external battery voltage from DC 4.0 - 35V.

FAQ

What is the RadioMaster RP3-H ELRS 2.4G Nano Receiver best suited for?

The RadioMaster RP3-H ELRS 2.4G Nano Receiver is specifically designed for FPV helicopters using Nexus Helicopter Flybarless units and is also compatible with CRSF/S.BUS flight controllers. It excels in applications demanding stable, low-latency signal reception.

What are the key technical advantages of the RP3-H receiver?

Key advantages include a built-in TCXO for signal accuracy, antenna diversity for improved range, a Skyworks PA for enhanced telemetry (up to 100mW), and an ESP8285/SX1281 chipset offering LoRa and FLRC 2.4GHz links for excellent performance.

How does the RP3-H receiver handle firmware updates?

Firmware updates are made simple thanks to the built-in Wi-Fi functionality. You can update the receiver's firmware wirelessly without needing to physically remove it from your build, saving time and effort.

What is the operating voltage and telemetry detection range for this receiver?

The RP3-H receiver operates on a DC voltage of 4.5 - 8.4V. It also features a battery voltage detection range of DC 4.0 - 35V, allowing it to monitor external battery voltage, which is useful for older ESCs.

Where can I buy the RadioMaster RP3-H ELRS 2.4G Nano Receiver with fast delivery?

You can order the RadioMaster RP3-H ELRS 2.4G Nano Receiver directly from HTDRONE. We offer fast shipping within Poland and reliable delivery to Ukraine via Nova Poshta, as well as worldwide shipping via DHL.