The new STI-CO Interoperable Mobile Antenna is designed to allow the use of VHF, UHF and 800 MHz mobile radios without installing three antennas on your sedan, SUV or van. This broadband antenna enables first responders using mobile interconnect transmission systems to communicate with different agencies seamlessly on three different bands.The Interoperable Mobile Antenna mounts quickly and easily with a magnet mount, so there are no holes to drill. The STI-CO Tri-Band Coupler supplied with this antenna contains ports to connect VHF, UHF, and 800 MHz transmission devices.