Magellan eXplorist 310, Руководство пользователя

Страница: 72 / 86

62 Magellan SporTrak GPS Receiver
Frequently Asked Questions
How long can I expect my SporTrak to run on a fresh set of batteries?
Under normal operating conditions you should get up to 15
hours of use while the display backlight is turned off. This
duration will drop significantly if you use the display backlight.
How often do I need to initialize the SporTrak?
Initializing the SporTrak decreases the time it takes to get a
position fix during cold start. What is meant by a cold start is
that the SporTrak has no reference to use as a guide to tell it what
satellites should be overhead. Without a reference to start with,
the SporTrak will have to “search the sky” trying to find any
satellite that may be in “view.” This takes time and can increase
the time it takes to get its first position fix. (Can take 10
minutes in severe conditions.)
So where does this reference come from? Under normal
operating conditions, the last position fix computed before the
SporTrak was turned off is stored into memory and will be used
as the reference the next time the SporTrak is turned on.
However, if you cleared the memory (see Clearing Memory - All
in the Reference Chapter) this stored reference point is removed
from memory and you probably will want to initialize the
receiver again. Also, if you travel with your SporTrak for more
than 500 miles with it turned off, it will still have the reference
point but it may be too inaccurate to be useful and again, you
may want to initialize the SporTrak.
Waypoints/Database
What waypoints come preloaded on my SporTrak’s database?
The Database contains cities, highways, airports, waterways and
national parks.
Can I delete preloaded waypoints that I don’t use?
No. Waypoints that are preloaded into the SporTrak will always
be available, even when all of the SporTrak’s memory has been
cleared.