The FrSky Archer Plus SR12+ is an advanced 2.4GHz receiver designed for demanding RC aircraft installations, combining integrated flight stabilisation, 12 configurable channel ports and a built-in power switch function. With enhanced resistance to RF interference, dual detachable antennas and compatibility with FrSky ACCESS and ACCST D16 transmitters, it delivers versatile connectivity and dependable control for experienced RC pilots.

Featuring an integrated 3-axis gyroscope and 3-axis accelerometer, the SR12+ supports multiple flight modes, including auto-level, stabilisation and knife-edge. Its 12 configurable channel ports can be individually assigned to PWM, SBUS, FBUS or S.Port, offering excellent flexibility when connecting servos, flight controllers and compatible telemetry devices.

The SR12+ also supports receiver redundancy through SBUS input, OTA firmware updates in compatible ACCESS mode, Black-Box data recording and external voltage monitoring. Dual XT30 power inputs and the built-in power switch function provide a practical power solution for suitable RC aircraft setups.

Key Features

• 12 configurable channel ports for flexible installation.
  
• Each channel port supports PWM, SBUS, FBUS or S.Port, subject to port and protocol limitations.
  
• Built-in 3-axis gyroscope and 3-axis accelerometer for flight stabilisation.
  
• Multiple flight modes, including auto-level, stabilisation and knife-edge.
  
• Five additional stabilisation channels for flexible channel mapping.
  
• Enhanced anti-RF-interference capability for improved signal performance.
  
• Smart-matched FrSky ACCESS and ACCST D16 protocols during binding.
  
• Dual detachable antennas for flexible positioning and reliable reception.
  
• SBUS input for compatible receiver redundancy configurations.
  
• SBUS output supporting 16-channel and 24-channel modes.
  
• FBUS and S.Port telemetry connectivity for compatible devices and sensors.
  
• Built-in power switch function with support for optional external switch panels.
  
• Dual XT30 power input connectors.
  
• Basic Black-Box recording of power- and signal-related flight data.
  
• External battery or device voltage monitoring through AIN2.
  
• OTA firmware updates with compatible ACCESS equipment.
  
• Enhanced interference resistance during spark-ignition operation.

Perfect For

• Experienced RC aircraft pilots seeking integrated flight stabilisation.
  
• Large or complex model aircraft requiring flexible channel assignments.
  
• Pilots using FrSky ACCESS or ACCST D16 transmitter systems.
  
• Aircraft builds requiring multiple PWM, SBUS, FBUS or S.Port connections.
  
• Pilots looking for receiver redundancy and improved signal reliability.
  
• Installations using compatible FrSky XACT servos and ADV telemetry sensors.
  
• RC aircraft requiring a dedicated power-switch solution and XT30 power connections.
  
• Pilots who want configurable telemetry and onboard flight-data recording.

Product Summary

The FrSky Archer Plus SR12+ combines a feature-rich 12-port receiver with integrated gyro stabilisation, flexible signal routing and convenient power management. Its configurable ports support a wide range of compatible RC electronics, while SBUS redundancy, dual detachable antennas and enhanced RF-interference resistance help support dependable aircraft control.

With multiple stabilisation modes, telemetry connectivity, Black-Box data recording and a built-in power switch function, the SR12+ is an adaptable solution for advanced RC aircraft installations where flexibility and integrated functionality are priorities.

Specifications

• Brand: FrSky
  
• Product Series: Archer Plus
  
• Model: SR12+
  
• Product Type: 2.4GHz receiver with integrated flight stabilisation
  
• Number of Configurable Channel Ports: 12
  
• Channel Port Configuration: PWM, SBUS, FBUS or S.Port, subject to protocol and port limitations
  
• Gyroscope: Integrated 3-axis gyroscope
  
• Accelerometer: Integrated 3-axis accelerometer
  
• Stabilisation Modes: Auto-level, stabilisation, knife-edge and other supported modes
  
• Receiver Redundancy: SBUS input supported
  SBUS Output: Supports 16-channel and 24-channel modes
  
• Operating Voltage: 3.5–12V
  
• Recommended Power Supply: 2S LiPo battery
  
• Operating Current: Less than 115mA at 5V
  
• Continuous Power Output Current: Up to 20A, subject to manufacturer specifications and installation conditions
  
• Instantaneous Power Output Current: Up to 40A, subject to manufacturer
• specifications and installation conditions
  
• External Voltage Measurement: 0–35V via AIN2 with the appropriate 1:10 voltage divider
  
• Power Connectors: Dual XT30 inputs
  
• Power Switch: Built-in function with optional compatible external switch
  
• Antenna Connector: IPEX1
  
• Antennas: Dual detachable antennas
  
• RF Protocols: FrSky ACCESS and ACCST D16
  
• Telemetry: FBUS and S.Port
  
• Firmware Updates: OTA support in compatible ACCESS mode
  
• Black-Box Function: Basic power- and signal-related flight data recording
  
• Dimensions: 48.5 × 33 × 17.9mm (L × W × H)
  
• Weight: 21.5g
  
• Compatibility: FrSky 2.4GHz ACCESS and ACCST D16-capable transmitters

Important compatibility notes: Some functions require compatible ACCESS transmitters and ETHOS support. In ACCST mode, SBUS output is assigned to Pin 11 and S.Port to Pin 12. Channel assignments depend on the selected protocol and port configuration. Check the manufacturer's wiring and power specifications before installation, particularly when using the power outputs and external switch accessories.

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