NAVIGATION DEVICE

摘要

PROBLEM TO BE SOLVED: To previously receive a wide-range map for displaying a map usable for a long time even in the outside the range wherein receiption of the map is impossible in a navigation device carrying no storage medium such as a DVD with a large map storage capacity and traveling while receiving the map. SOLUTION: This navigation device is provided with a communication circuit 8 receiving map information from a station distributing several pieces of map information different in area range by radio waves and a control circuit 1 selecting the area range of the map information to be received according to receiption intensity of the communication circuit 8.