Boost i830 User's Guide download pdf (Page 18)

Driving Directions from a Different Origin

After you select or enter a destination address, TeleNav attempts to determine your location using the GPS

receiver. During the brief period of GPS acquisition, you can press the lower left NONGPS Option Key to enter the

Driving Directions submode. After you press NONGPS, you enter the Origin address for the Driving Directions

using the same options as were available to you while entering or picking the destination address.

GPS Origin Refinement

If are using GPS Navigation and you are in a parking lot or similar area where your

location does not exactly map to a specific street, you may see a screen that says:

If you are not on the suggested street, press CHNGE and pick the street you are on

from the displayed list. Otherwise, press OK, or just wait for the timer to count down.

I found you on -

Cooper Drive

< 5 secs >

OK CHNGE

NOTE: If you are not sure of the street you’re on, simply select the first street in the list, and start driving. TeleNav

will revise its estimate of your location, and provide you with a new route if needed.

GPS Guidance

Within a few seconds, TeleNav will contact the TeleNav server, obtain an optimal route to your destination, and

display the first instruction telling you how to start your trip from your current location.

NOTE: Unless you are moving, TeleNav will not be aware of your direction of travel. If this is the case, the first few

guidance instructions may be incorrect. However, once you start moving, TeleNav will learn your direction of travel

and provide a corrected set of guidance instructions.

Next you will see the first of the guidance displays that will direct you to your destination. These displays are

described below under Guidance Displays.

Audible Messages

TeleNav delivers one or two audible guidance messages as you approach a turn or junction. The preparatory

message will be heard no less than 30 seconds before you reach the turn, and the action message will be heard no

less than 10 seconds before you reach the turn. The preparatory message may not be heard if the distance to go

only allows time for the action message. The lead-time for these messages is increased proportionally to your

driving speed to allow more time for changing lanes on freeways than on surface streets. Visit the TeleNav website

to turn audible street names on or off.

What’s Next

If you wish to hear the action message for the current route segment without waiting, simply press the Green Send

Key. We call this the “what’s next” feature.

Miss a turn?

Whenever you miss a turn, turn the wrong way, turn too early or too late, or otherwise get off the planned route to

your destination, TeleNav will automatically create a new route to your desired destination, audibly announce, “New

Route”, and give you a new set of instructions. If you realize you have gotten off the route, just keeping going.

TeleNav will detect your “departure” and calculate a new route to get you back on track.

Please note that it takes about 15 seconds for TeleNav to update your route. If during this process you also make

adjustments, TeleNav will probably have to contact its servers for another new route. Rerouting uses substantial

network bandwidth, so it is advisable for you to try to stay on the route. Since TeleNav GPS Navigation requires

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Boost i830 User's Guide Page 18