The UH80120S is the ultimate in compact UHF communications and built for rugged Australian and New Zealand conditions makes it ideal for the truck drivers, 4WD Drivers and Caravan Drivers. Unidens reliability and experience in UHF makes this unit ideal for the professional who needs to keep in touch with the outside world. The UH8010S + Antenna offers the finest components, engineering and styling, just what you would expect from Uniden. The latest innovation added to the Uniden UHF range, Master Scan technology, is designed to ensure minimal disruptions for continuous communication. This premium feature also has Dynamic Switching, which lets users retain constant communication by changing over to unused channels. This network scan function searches for other radios that share the same CTCSS or DCS tone. When the radio detects a signal with no code or an incorrect code, it switches to an unused channel when transmitting. By scanning only group channels, radios in the network will be able to detect and receive group transmissions, offering continuous communication without interruption.