This Sennheiser ASA 1 active antenna splitter is designed for the 500 - 870 MHz frequency range. Note that it doesn't come with a power supply. Before you buy, make sure to check your country's wireless frequency laws as some frequency ranges may be illegal to use. Also, be aware that the A4 BNC connector is bent.

Using this Sennheiser ASA 1 active antenna splitter is straightforward. First, connect it to your equipment in the 500 - 870 MHz frequency range. Since it doesn't have a power supply, you'll need to provide one yourself. Before using, double - check your country's wireless frequency rules to avoid any legal issues. When it comes to maintenance, keep it in a dry and clean place. If you notice any performance issues, check the bent A4 BNC connector. If it gets worse, you may need to replace or repair it.