Universal radio command for fixed code gate Self-learning 4 keys (frequency ranging from 280 Mhz to 500 Mhz) Universal self-learning radio compatible with all radio controls for gates that have a universal frequency ranging from 280 Mhz to 500 Mhz with fixed code. The device stores up to 4 different radio control codes and is easy to program : - For the programming of the remote control it is necessary to arrange the device in front of the radio control and adjust the frequency with the appropriate drimmer (frequency variator) that is located at the top to be duplicated at a minimum distance. Press the key to be duplicated on the original remote control and the button to be programmed on the purchased remote control (A or B) at the same time and it will start flashing a blue light constantly, after a few seconds release the keys. Repeat the same procedure to program the other keys of the radicommand; To close the stored codes press together the keys C and D wait 15 seconds and after the light ble will flash in this way the codes have been stored permanently. - To delete existing programming, you must simultaneously press the A and B keys of the remote control and wait until a constant blue light starts to flash and then release the keys. This procedure will delete the previous settings and reset the remote control.