RadioLink Electronic Limited
10
②
Power on the transmitter and the receiver.
③
There is a black binding button(ID SET) on the side of the receiver, press it for more than 1 second. When the
LED starts flashing, meaning binding process has started.
④
The binding is complete when the LED is always on.
⑤
Make sure F121 Pro is armed (Details in next section). Gently push the throttle of transmitter to see if motors
move. If doesn’t, retry binding again.
Note
F121 Pro currently supports SBUS signal output only, always make sure the LED of R8SM/R6DSM is
blue/purple, meaning SBUS signals output. If the LED is red, press the binding button twice in 1 second and
release to change it to purple/blue.
If it’s the transmitter of AT9S Pro/AT9S/AT10/AT10II used, channel quantity needs to be set first in order to
be compatible with receiver R6DSM. Long press MODE to enter BASICE MENU, select SYSTEM and
modify CH-SELECT as 10CH. Otherwise, F121 Pro won’t be able to be armed.
Chapter 4 Flight at Different Flight Modes
It’s strongly advised for beginners to start from Altitude Hold Mode to then to Stabilize Mode.
It’s better to keep the direction of F121 Pro head same as pilot in order to easily judge the flight direction.
Otherwise, F121 Pro may flight towards pilot and get him/her hurt. If the aircraft head is changed unexpectedly
and different from pilot’s direction, pull the throttle stick to the lowest position to land F121 Pro.
Experienced pilots can control the F121 Pro with the Manual Mode to enjoy the funny freestyle and racing time.
4.1 Arm and Disarm F121 Pro
4.1.1 How to arm
When the throttle is at the lowest position, press the CH7 switch (the 3-way switch on the left of T8S) towards the
back of T8S, the green LED of F121 Pro is on means arm successful. When the transmitter is T8FB, push the
throttle to the lowest position and then put the CH7 switch (the 2-way switch on the left) to the top position to arm.
If you use the other transmitter except the T8S or T8FB to control the F121 Pro, set a 2-way switch to control the
CH7, and when the throttle is at the lowest position and the switch at the top position, the green LED of F121 Pro
is on means arm successful. For security reasons, F121 Pro will be disarmed automatically if there is not any
operation of the throttle for 5 seconds. So arm F121 Pro again when the flight is ready.
