FrSky RX4R

4.5 8

Lower latency, increased range, redundancy.

  • The RX4R receiver incorporates all of the functions of X4R. It features 4 high precision PWM outputs and low latency. The PWM output is 9ms faster than the X4R in high speed mode. The RX4R also supports redundancy, this means you can connect another receiver as a backup in the case that the first one fails. If all that isn't enough, the RX4R and the whole RX-line has an increased operating range of up to 40% compared to the previous X series receivers.


    • Higher precision PWM and Low latency PWM output
    • Reduced power consumption
    • Supports Redundancy Function
    • Smart Port and Telemetry enabled 
    • Battery voltage detection supported
    • IPEX 4 Antenna Connections
    • PCB protected with Conformal Coat


    18×17×7mm (L×W×H)
    Weight2.4g (including antennas)
    Number of Channels
    16CH (1-4CH PWM outputs, 1-16CH SBUS OUT port)
    Operating Voltage Range
    Operating Current
    Operating Range
    Servo Frame Rate
    9ms (HS—High Speed Mode) / 18ms (FS—Normal Speed Mode)