RadioMaster RP3-H ExpressLRS Nano Receiver (2.4GHz)

RadioMaster RP3-H ExpressLRS Nano Receiver (2.4GHz)

The RadioMaster RP3-H ELRS receiver is specifically designed to use in combination with the RadioMaster Nexus FBL controller. Of course you can also use this ExpressLRS receiver in combination with any other CRSF/S.Bus protocol enabled flight controller.

The RP3-H receiver is designed in such a way that it’s optimized for Helicopter use. This ELRS reciever uses a integrated rugged housing design to make it tougher and easier to mount on a RC helicopter than the other RP serie receivers.

The Ext-V telemetry input on the RadioMaster RP3-H offers compatibility with older Flight controllers/ESC’s that dont sent battery voltage telemetry to the receiver over the CRSF protocol.

This ELRS receiver is built with the ESP8285 as MCU and a SX1281IMLTRT RF chip with a TCX0 oscillator that offers temperature compensation to provide the best and stable frequency lock. As Power amplifier, the Skyworks SKY66112 is used to increase telemetry performance thanks to a telemetry output up to 100mW. A dual antenna is used with antenna switching to provide a solid link based on antenna diversity.

The built-in Wifi allows you to update your RadioMaster RP3-H without the need to take the receiver out of your RC model.

Except for the RP3-H Receiver, we also provide the RP1,  RP3, RP2 Receiver and RP4TD receiver.

Visit https://www.expresslrs.org/ to learn all about the exciting ExpressLRS project!

Main Features

• Perfect for helicopters and any application that needs a rugged cased serial receiver
• Plug’n’play solder free RP3-H ExpressLRS receivers compatible with NEXUS Heli flight controller
• 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)
• Automatically detects voltage telemetry of external battery voltage or receiver battery/ESC BEC voltage
• Compatible with all 2.4GHz ExpressLRS modules and transmitters with built in 2.4GHz ExpressLRS

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.

Specifications

• RadioMaster RP3-H ExpressLRS 2.4GHz Nano Receiver
• Type: ISM
• MCU: ESP8285
• RF Chip: SX1281
• Telemetry RF power: Max 100mW
• Antenna: 150mm 2.4GHz Antenna x2
• Frequency Range: 2.404 – 2.479 GHz
• Maximum receive refresh rate: 500Hz / F1000Hz
• Minimum receiver refresh rate: 25Hz
• Working voltage: DC 4.5 – 8.4V
• Battery voltage detection range: DC 4.0 – 35V
• Weight: 5.1g (Including two antenna)
• Dimension: 28mm*24mm*8mm
• Firmware Version: ExpressLRS v3.3.1 pre-installed
• FW Target: RadioMaster RP3-H Diversity 2400 RX
• Bus interface: CRSF/S.Bus