Telenav for AT&T Supported Devices: v4.1 for AT&T 8125, 8525 Users Guide - Manual (Page 30)

© TELENAV 2003-6 PAGE 30 OF 32
GPS Signal Weak
If the GPS signal reception is weak due to shadowing within the vehicle or due to buildings, trees, overpasses, etc.,
validation will fail, producing a screen that will advise you that the GPS signal is weak and you should move to an
open area. It is suggested that you move to an area with a clear view of the sky, and then click “
RETRY”. If you’re
still having problems you can still driving directions by pressing the NONGPS key while the GPS receiver is trying to
determine your current location as the origin point.
TeleNav Not Available
If you get an advisory message that TeleNav is not available, you should EXIT the TeleNav application, and then
restart it. If the problem recurs, it may be due to a temporary TeleNav server outage.
TeleNav Encountered An Error
TeleNav is having technical problems with the specific request you made. This can be due to an address that it
cannot find, or mapping data that does not allow routing from where you are to where you want to go. In this case,
try to use a nearby address.
Unable to generate a route
TeleNav could not generate a route between the two endpoints of the route. This may be a temporary error if you
are using GPS to establish the origin. In rare cases it is due to errors in the map data around the destination.
10. 10. 10. 10. FAQ’s
How do I increase or decrease the voice prompt volume and control the backlighting?
The backlight and speaker volume levels can be controlled from within TeleNav’s Preferences. If the speaker
volume is set to at least mid-range and you are still not receiving audio prompts verify that your handheld profile is
not set to vibrate or quiet. To change your profile settings, highlight the Profiles icon that looks like a loudspeaker
and press the Enter key.
Why do I need the carrier’s data service?
The data plan allows you to access nationwide routes, maps, and BizFinder content from the TeleNav servers
using the data communication features of your handheld. These services are different from your cellular airtime.
To order a data plan from your carrier, please contact their customer support directly:
Does TeleNav use up my voice plan minutes?
TeleNav uses data to provide the navigation function. Using data does not use any of your voice minutes.
However, calling the Voice Address Input System does use about 75 seconds per address entered, and this
includes the Voice Call feature internal to the TeleNav application.
How accurate is the GPS?
GPS accuracy can range from 20m to 100m, however most of the time the GPS is accurate to less than 50 meters.
What is ideal GPS environment?