How to use: Just connect the antenna to your compatible device to start using it. But remember, you need to prepare your own power supply and other necessary antennas. Things to note: Make sure the device you connect to is compatible with the 1.92 - 1.93 GHz frequency. Also, since there's no power supply included, use a suitable one to avoid any electrical issues. Maintenance advice: Keep the antenna in a dry and clean place. Regularly check for any signs of damage or wear, and if you notice any problems, replace or repair it in time.