This unit doesn't come with a power supply. Before buying, check your country's wireless frequency regulations. Some frequency ranges may be illegal in certain countries.

To use this Sennheiser ASA 1 active antenna splitter, first make sure you've checked your country's laws about the 500 - 870 MHz frequency range. Connect it to your antenna system as needed, but remember it doesn't have a power supply, so you'll need to arrange one separately. When it comes to maintenance, keep it in a dry and clean place. Don't expose it to extreme temperatures or moisture. If you have any issues, check the connections first and ensure they are secure.