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Radiomaster RP3-H ELRS 2.4G Nano receiver Designed specifically for use with our Nexus Helicopter Flybarless Controller, the RP3-H ExpressLRS receiver is compatible with all CRSF/S.BUS enabled flight controllers, features a built-in TCXO and an integrated housing design that makes the receiver more durable and ready for mounting on modern helicopter frames. With the RP3-H receiver, you get a reliable, stable and accurate signal reception that enhances your flight experience and allows you to achieve excellent performance even in challenging conditions. The RP3-H also features an Ext-V telemetry input for compatibility with older ESCs that do not provide battery voltage telemetry through the controller. The RP3-H receiver uses a Skyworks SKY66112 power amplifier to increase telemetry power, the PA provides up to 100 mw of telemetry power and antenna switching for antenna diversity. It is developed around the ESP8285 MCU and the SX1281IMLTRT RF chip, which offers Lora and FLRC 2.4GHz RF links that provide incredible range and low latency. Thanks to the built-in Wifi, firmware updates can be carried out on the vessel without having to remove the receiver. Features: - Ideal for helicopters and all applications that need a rugged serial receiver in a housing. - Plug'n'play solderless RP3-H ExpressLRS receivers are compatible with NEXUS Heli flight control unit. - Optimized circuit board design for better heat dissipation - LNA for better receiver range - PA for better telemetry range - Diversity of antennas for better stability and signal range - Built-in TCXO (Temperature Compensated Crystal Oscillator) - Automatic detection of external battery telemetry voltage or receiver/ESC battery BEC voltage - Compatible with all 2.4GHz ExpressLRS modules and transmitters with built-in 2.4GHz ExpressLRS Specifications: - Item: 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 reception refresh rate: 500Hz / F1000Hz - Minimum receiver refresh rate: 25Hz - Working voltage: DC 4.5 - 8.4 V - Battery voltage detection range: DC 4.0 - 35V - Weight: 5.1 g (including two antennas) - Dimensions: 28mm*24mm*8mm - Firmware version: ExpressLRS v3.3.1 pre-installed - Target FW: RadioMaster RP3-H Diversity 2400 RX - Bus interface: Bus: CRSF/S.Bus The package contains: - 1 x RP3-H ExpressLRS 2.4GHz nano receiver - 2 x 150mm IPX1 2.4GHz T antenna (installed) - 1 x JST-GH CRSF 4-wire pigtail - 1 x cable JST-GH 4 wires to JST-GH CRSF - 1 x JST-GH 4 wire to one servo pin (simple dupont connectors) - 1 x voltage telemetry wire - 1 x Brief instructions for use