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The RP3 2.4GHz ELRS Nano receivers use the high-performance, revolutionary ExpressLRS open-source system. The ExpressLRS development team designed the Nano receivers, which feature the ESP8285 MCU and SX1280 RF chips. This offers Lora and FLRC 2.4GHz RF links for incredible range and low latency. WiFi is built-in to easily upgrade the firmware and configure the receiver using your PC or mobile phone.

The receiver features a Skyworks SE2431L providing an LNA for improved receiver performance, a PA providing up to 100mW of telemetry performance, and antenna switching for antenna diversity.. The RP3 Nano receiver is available in either an FCC or a European LBT version, please check the specifications below for the supported protocol.

High gain, high sensitivity RF components are used throughout, this coupled with FLYSKY's latest generation intelligent wireless 2.4GHz AFHDS 3 protocol, enables the receiver to reject interference easily, while maintaining high reception rates, and stable performance. This version 2 FGr4 supports PPM, i-BUS, and 4 PWM data outputs (CH1~CH4), and an input for connecting additional sensors. Another feature of this quality FLYSKY receiver is the ability to handle a wide input voltage, anything from 3.5-12V can be used, and the case has a sealing gasket which makes it water-resistant.

The FGr8B surface micro receiver adopts FLYSKY's third-generation automatic frequency hopping digital system (AFHDS 3), it is perfectly suited to their range of PL18, NB4, and NB4 Lite transmitters. It uses a single antenna bidirectional transmission system that is uniquely designed to install and output PWM/PPM, and iBUS in signals.