Present location data positioned by a present location positioner and an
image of the scene of the present location taken by a camera are
transmitted to the outside via a radio wave receiver/transmitter. On the
other hand, a route from the present location to a destination is set by
entry of the destination, and the location a certain value of kilometers
ahead of the present location is designated by an operation part in the
set route. Then, image data including the data on the designated location
is received via a radio wave receiver/transmitter, and the received image
is displayed on a display part. Thus, the visual scene of the location
designated in the route to the destination can be received and displayed
beforehand.