Telenav for Nextel Supported Devices: v2.1 for Motorola i88s, i58sr, i95cl - Manual (Page 28)

© TELENAV 2003-5 PAGE 28 OF 30
Why do I need the Nextel packet data service?
The Total Connect, PacketStream or PowerApps plans allow you to access nationwide maps from the
TeleNav server for accurate turn-by-turn directions, using the data communication features of your
Java phone. This is different than your cellular airtime. It's necessary to have this option enabled in
order for your phone to communicate with TeleNav’s servers.
How long after I apply for the Nextel packet data service until I can use my TeleNav system?
Activation time from Nextel will vary depending on their processing workload. It’s best to consult with
the Nextel Customer Service agent about the activation period when applying for the service.
How much packet data have I used?
Your Nextel phone tracks this usage. Press MENU, and then scroll down to MORE. After selecting
MORE, or if you do not find MORE, select CALL TIMERS. Then, select KBYTES RESET. The next
display will show you approximately how many kilobytes you have used. Divide this number by 1000 to
convert it to megabytes, and compare this with your Total Connect, PowerApps or PacketStream plan
limit. When you are finished looking, press DONE. If you want your usage report to correlate with your
Nextel bill, press RESET once monthly on the day Nextel closes your billing cycle.
Does TeleNav use up my voice plan minutes?
TeleNav uses packet data to provide the navigation function. Using packet data does not use any of
your voice minutes. However, calling the Voice Address Input System does use about 1 minute per
address entered.
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. Our external GPS receiver also uses WAAS technology to further reduce the error.
What is ideal GPS environment?
The GPS requires an open, clear view of the sky. Buildings, covered parking areas, tunnels and dense
foliage can cause the GPS receiver to either be unable to locate itself (fix) or have extended
initialization time (start-up fix).
If you are parked in a covered parking lot or near a tall building, it is recommended that you move away
till you have a clear view of the sky and then begin to use the TeleNav service.
You may need to give the GPS a few minutes to find its location.
How do I know that the GPS has a signal?
The TeleNav application on your phone will alert you if the GPS does not have a valid signal. If this
happens, drive to an area where there is a clear view of the sky so the GPS can find itself.
Why does the GPS not work near buildings and other tall objects?
The GPS uses satellite signals from space to find out where it is. Therefore it needs a clear view of the
sky. Tall buildings and other objects that block the receiver’s view to the sky make it infeasible to
determine your location. Sometimes the satellites are not overhead but near the horizon; in these
cases the GPS must have a clear view of the horizon.
How do I enter my destination?