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Radiomaster R81 V2 Receiver

The RadioMaster R81 V2 is a compact and lightweight 8-channel receiver designed for small FPV drones and RC aircraft. It offers compatibility with FrSky D8, D16, and Futaba SFHSS protocols, making it a versatile choice for various radio systems.

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Description

Key Specifications

  • Channels: 8

  • Signal Protocols: FrSky D8, D16, and Futaba SFHSS

  • Output Format: SBUS (with RSSI on Channel 9)

  • Frequency Range: 2400–2483.5 MHz

  • Power Input: 4.5–6V

  • Range: Over 1 km

  • Dimensions: 17 × 11 mm

  • Weight: Approximately 2 grams

  • Antenna Length: ~6 cm

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