RadioLink Electronic Ltd
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2. When the transmitter and receiver are powered on, the LED indicator of R8XM flashes slowly
means there is no binding or the receiver loses signal during flight.
Working Modes
There are two signal working modes of R8XM.
Purple LED, SBUS signal, 8 channels totally.
Red LED, PPM signal, 8 channels totally
SBUS and PPM signal switch
Quick press the ID SET switch twice within 1 second, the signal is changed from SBUS to PPM (or
from PPM to SBUS).
The red LED indicates the PPM and purple LED indicates SBUS.
Note of Antenna Installation
In order to maximize the signal transmission, it’s greatly advised that
1. Keep antennas as straight as possible, or the effective control range will reduce.
2. Big models may contain metal parts that influence signal emission. In this case. antennas should
be positioned at both sides of the model to ensure the best signal status in all circumstances.
3. Antennas should be kept away from metal conductor and carbon fiber at least half inch away and
no over bending.
4. Keep antennas away from motor, ESC or other possible interference sources.
5. Sponge or foam material is advised to use to prevent vibration when installing receiver.
6. Receiver contains some electronic components of high-precision. Be careful to avoid strong
vibration and high temperature.
7. Special vibration-proof material for R/C like foam or rubber cloth is used to pack to protect
receiver. Keeping the receiver in a well sealed plastic bag can avoid humidity and dust, which would
possibly make the receiver out of control.
When all the above steps are complete, please turn off the transmitter and repower on to test if the
receiver is correctly bind with it.
Real-time Built-In Telemetry
R8XM supports real-time transmission of RSSI, receiver voltage, and model voltage. The telemetry
range is the same as the control range, 4000 meters.
Telemetry of RSSI and Receiver Voltage
RSSI and receiver voltage will be displayed after the successful binding between the transmitter and
the receiver.
Telemetry of Model Voltage
Connect the balance head of the battery to the telemetry port of R8XM, the model voltage will be
