Facing issue with radio calibaration using radiolink RC

Hardware Radios
1

hello ,
i am facing an issue where the green bars in radio calibration are not been shown . I am using a radiolink AT9s pro transmitter and radiolink R9DS reciever , pixhawk 2.4.8. Please help me with this issue any small advice would help me greatly .

2

Is your Tx properly paired to your Rx?

3

oh yes ,
i have fixed the issue thank you .
the s bus connection had to be put in rc in port of pixhawk and have obtained the results . thank you again