Rand McNally rvnd-5510 用户指南

Some cities with common names such as “Concord” have several types of 
names associated with a city. 

If a name does not display, continue typing characters until the name you are 
looking for displays in the list.

The Expand Search button on the street name selection window can help 
locate addresses that may actually be in a different town, spelled slightly 
differently, or in a neighboring town.

If the next letter in the street name can not be selected on the keyboard, tap 
Expand Search to search a greater area.