RadioLink Electronic Limited
www.radiolink.com
operating the model, please make sure protocol of the receiver is selected correctly, otherwise
some functions will not work properly.
2. The receivers that compatible with the RC8X is keep updating, please pay attention to
RadioLink official website www.radiolink.com to get the latest firmware to check the newly
launched receiver. This page is only to display the receiver models which are compatible with the
RC8X.
Receiver Connection
Picture 1 Picture 2
The connection wire for the receiver is shown in the picture above. The common ones are
white/red/black wire (Picture 1) or yellow/red/brown wire (Picture 2). The two types of servo
cables both are light-colored wire as the signal wire, and dark-colored wire as the ground wire,
and the middle is 5V power supply, and the three wires correspond to " ".
Note: RadioLink receivers are all designed with anti-polarity connect protection. When the
receiver is powered by a separate battery, the receiver will not be damaged if the battery polarity
is reversed, but if the servo is connected at this time, it will damage the servo.
The Connection of servo, ESC and receiver.
R8FG Receiver Connection (As above)
R4FGM Receiver Connection (As above)
Telemetry of Model and Receiver Battery Voltage
R8FG supports telemetry of model battery voltage, receiver voltage, and RSSI. The model
voltage will display by connecting the wire to the ESC (Electronic Speed Control), battery, and
Telemetry port of receiver R8FG. Telemetry of maximum 8S (33.6V) battery supported. Model
battery voltage telemetry can be easily achieved by connecting the male end of the telemetry
wire to ESC while the female end to the battery and the wire with a JST head connects
Telemetry (+-) of R8FG as below picture shows. No extra module is needed. Once connect with
success, the returned model voltage will be displayed on the home page of the transmitter. The
connection is shown below.