ITEM NAME:3 Key Universal 433MHz Copy Cloning Remote Control Garage Gate Duplicator #gib Product Description Description: Features: Usage steps and methods: 1, The frequency modulation method: screw down the back of the remote controller, pull the remote controller from the middle part, and open the main circuit board. There is a small screw that can be rotated on the circuit board. The rotary screw can adjust the frequency. The frequency must be tested with a frequency measuring instrument, and the frequency can be adjusted between 250MHZ-500MHZ. 2, Clear code: two fingers and press the unlock button and close button, (Note: some of the remote control is the first key to up and second keys to down, some of the remote control by remote control is above two keys, no matter how key arrangement, usually by two big keys) about 2 seconds after the LED light flashes quickly 3 next, let go of one finger (the other hand hold, and then can't let go) loosen the finger quickly according to three times by releasing the button until the LED lights continuously flashes, two fingers can be released, then press any button on the remote controller, LED lights, said clear code (success four keys all empty); if any button lights press the remote control is bright, clear that the original code is not successful! The need to clear code, clear code to copy only after the success of success. Clear code can be repeated, repeated several times to copy. 3, A copy of the original remote control: the left hand, right hand remote control the remote control to each of two. At the same time, press the two remote (your original remote controller and the remote control) the first button for about 2 seconds after the LED light flashes quickly -- a 2 seconds later, the indicator light flashes, then can let go. After the success of the learning and then press the button, lights display long light, which indicates that the first original remote control the remote control code has been copied in the us..Frequency: 433MHZ. This is a similar push. The need to clear code, clear code to copy only after the success of success. There is a small screw that can be rotated on the circuit board. The rotary screw can adjust the frequency.