The R9 MM-OTA receiver implements the ACCESS protocol and brings the user improved performance and features. The R9 MM-OTA supports wireless firmware updates over the air making binding to receivers even easier. As well as the convenience of checking the current receiver firmware version. The R9 MM’s compact form factor design is also carried over to the OTA version, and the R9 MM-OTA supports inverted S.Port as well.

Key Features

• 868MHz(EU Version)
• Mini size and super lightweight
• Supports OTA firmware update
• Supports firmware version check
• S.Port enabled and support telemetry data transmission
  (Support F.Port, download firmware to support the function)
• Inverted S.Port enabled
• Low latency and high precision
• With RSSI output in SBUS
• Battery voltage detection supported
• Detachable Ipex connector antenna

Specifications

• Dimension: 16*10*2.8mm (L×W×H)
• Weight: 0.7g (without antenna)
• Number of Channels:
  Non-LBT Version: 4/16CH (Telemetry)
  LBT Version: 4/16CH (Telemetry) / 4/16CH (No Telemetry)
• Operating Voltage Range: DC 3.5V – 10V
• Operating Current: 100mA@5V
• Operating Range: Up to 10km or above
• Compatibility: R9M Lite/R9M/R9M 2019 with ACCST firmware
  R9M Lite/R9M Lite Pro/R9M 2019 with ACCESS firmware