2000 Meters Control Distance
Same FHSS* spread spectrum algorithm as AT9S and 67-channel pseudo-random frequency hopping help reduce overall signal interference.
2000 meters (1.24 Miles) * range enables all possible RC fun.
The maximum PWM jitter is 1.84us with a standard of just 0.5us.

* Frequency Hopping Spread Spectrum offers three main advantages: signals are highly resistant to narrowband interference, are difficult to intercept and can share a frequency band with many types of conventional transmissions with minimal interference.

* Maximum range is tested in an unobstructed area free of interference.

SBUS or PPM Signal Output
8 channels of SBUS/PPM signal output.
Compatible with PIXHWAK, MINI PIX, TURBO PIX, and APM flight controllers which support SBUS or PPM signal.
Weight of 2.5g(0.09oz) and small size of 16.0*21.5*1.0mm (0.63"*0.85"*0.04") make R8FM is tiny enough even for mini racing drone and glider.

Specifications
 
Size: 24.5*18mm (0.63"*0.85")
Weight: 2.5g(0.09oz)
Channels Qty: 8 channels
Signals: SBUS/PPM
Operating Voltage: 3~6V
Operating Current: 38-45mA@5V
Section Precision: 4096, 0.25us per section
Control distance: 2000 meters (1.24Miles) in the air (Maximum range tested in unobstructed areas free of interference and may vary depending on local regulations).
Compatible transmitter: T8S/T8FB