How to program the XT4 868SLH LR remote control:

1. Simultaneously press the P1 and P2 buttons on the master Tx used for system coding, and release them when the LED flashes (after approximately one second);
2. Place the master TX face to face with the TX to be encoded (master or slave);
3. On the master TX (while its LED is still flashing), press and hold down the same channel used for system coding: the LED lights up steadily;
4. On the TX to be coded, press the desired channel and release it when the LED turns off after a double flash, confirming that the "system code" has been stored;
5. Release the master Tx channel button;
6. Repeat the same procedure for each TX to be encoded by activating the transmitter channel twice in succession, within max 5 seconds.