FlySky FS-X6B 2.4G 6CH i-BUS PPM PWM Receiver

The FlySky FS-X6B is a compact two-way 2.4GHz receiver for AFHDS 2A radios, designed for multirotors. It offers three outputs, 6-channel PWM, 8-channel PPM and 18-channel i-BUS serial (read by Betaflight, INAV and ArduPilot), plus a voltage sensor input that sends pack voltage back to the radio as telemetry.

Key features

• AFHDS 2A two-way link through dual 93 mm omnidirectional antennas

• A single i-BUS lead carries up to 18 channels to the flight controller; PWM output feeds servos or controllers with individual inputs

• Voltage sensor port reads an external supply of 0–18 V (1S–4S) and reports it on the radio screen

• 4.0–8.4 V power input, low-voltage alarm and wireless firmware updates

• Four leads included: three signal cables for the voltage sensor, PPM and i-BUS ports, and one for the PWM port

Specifications

• Protocol: AFHDS 2A, two-way

• RF range: 2.408–2.475 GHz, 135 channels

• RF power: 20 dBm max

• Receiver sensitivity: -95 dBm

• Modulation: GFSK

• Channels: 6 (PWM), 8 (PPM), 18 (i-BUS)

• Resolution: 1024 steps

• Power input: 4.0–8.4 V

• Voltage sensor input: 0–18 V (1S–4S)

• Antennas: Dual, 93 mm

• Range: Over 300 m

• Dimensions: 36 x 22 x 7.5 mm

• Weight: 12 g complete assembly

• Compatible radios: FS-i4, FS-i4X, FS-i6, FS-i6S, FS-i6X, FS-i8, FS-i10 and other AFHDS 2A transmitters

On a Betaflight or INAV quad, run the i-BUS lead to a spare UART RX pad and set the receiver protocol to IBUS. With a rated range of 300 m, it suits park flying, trainers and first builds rather than long-range missions.