How does VIS differ from RF only locating systems?
Systems that use RF-based technology alone to report location information are hampered by the nature of radio frequency waves, which penetrate walls and ceilings. This makes reporting an exact location using an RF-based system nearly impossible. RF-based systems can only report the general location of a person or piece of equipment. Because VIS uses infrared technology, it offers location information down to the exact room, or even a specific area within a room.
