FrSky Archer R4 OTA 2.4GHz Wing Receiver - ACCESS

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All of the Archer receivers are hyper-matched with the ACCESS protocol. They not only feature wireless firmware upgrades, increased range, and telemetry performance, the R4 now supports more functions like configurable telemetry power, S.Port/F.Port switching and FLR output. Additional valuable features are under development to unlock the true potential of the ACCESS protocol.

Check out all our RC receivers, and all our FrSky products!


  • ACCESS protocol with Over The Air (OTA)
  • Tiny and lightweight
  • Supports signal redundancy (SBUS In)
  • Full control range with telemetry
  • S.Port / F.Port
  • External battery / device voltage detection


  • 16/24 Configurable SBUS Channels
  • 4 High-precision PWM Channels
  • Operating Voltage Range: 3.5 -10V
  • Operating Current: <60mA@5V
  • Control Range: Full range* with telemetry
    (*Full Range: >2km, range may vary based on local conditions.)
  • Voltage Measurement Range via AIN2 (External device): 0-3.3V
  • Compatibility: All FrSky ACCESS transmitters
  • Dimension: 30x17x6.2mm(L*W*H)
  • Weight: 3.8g


  • 1x FrSky Archer R4 OTA 16/24CH S.Port/F.Port PWM/SBUS 2.4GHz RC Receiver - ACCESS