RM Acquisition LLC 1000AA 用户手册

TND

™

 Tablet User Manual

ii

The Global Positioning System (GPS) is a constellation of satellites that  
a GPS receiver uses to calculate geographical positions. To determine  
a position, data from at least three satellites is required. To determine  
elevation, the data from four or more satellites is required. Accuracy of  
the positioning varies from 10 feet to several hundred feet, depending  
on vehicle placement and the surrounding environment.

Geographical terrain (such as mountains), man-made structures (such as 
highway overpasses, bridges, and tall buildings), as well as weather  
can interfere with the GPS signal. For best GPS reception, position the  
device and mount with a clear line of sight to the sky. Some vehicles  
may have a limited view of the sky due to metal sun shields or a  
metallized windshield coating. 

Map data includes the geographical coordinates for address locations  
and points of interest (POIs). With GPS reception, your device calculates  
a route to your selected location.

Call toll-free: 
800-333-0136 

Service hours:
Monday through Friday, 7 a.m. to 6 p.m. CT 
(Except official holidays) 

E-mail:
TNDSupport@randmcnally.com