Prastel TC4E radio gate opener, 4 channels, 433.92 MHz, rolling code

A fully functioning radio control unit is required for duplication.
The duplication procedure must be carried out in the vicinity of the receiver.
1 - Simultaneously press buttons 1 and 2 on the working remote control and release them, the LED lights up and after 2 seconds goes out.
2 - When the led turns on again, press buttons 1 and 2 simultaneously again until the led starts flashing.
3 - At the end of the flashing, the radio control carries out a transmission, activating the learning of the receiver.
4 - The receiver remains in learning mode for 10 seconds, within this time press the button of the new remote control you wish to memorise.
5 - At each insertion, the receiver resets the insertion time by a further 10 seconds to memorise any other remote controls; the control unit exits programming modeac if no other remote controls are inserted within 10 seconds