Backlit keypad allows scanner to be used easily in the dark. Location-based scanning allows you to control which systems/sites and channel groups are scanned based on your exact location. and SPECIAL & UNIQUE 11, NEW 25-CH CORDLESS (BASE TX) /49.360 ch. Please feel free to submit corrections! TPD is unusually radio quiet most likely due to heavy MDT dispatching. Also includes traffic control and special operations channels.