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but can hold data ranging from 8 MB to 256 MB in size. (Compare that to a
floppy disk's 1.44 MB capacity!) Atlas uses all that MMC space for two key
purposes.
First, you can backup your onboard GPS Data Files by copying them to the
MMC. Since the MMC is removable (like a floppy disk or a cassette tape), you
can store these GPS Data Files on a personal computer equipped with an
MMC card reader. (Or store them on a pocketful of MMCs, if you don't have a
computer.) (
NOTE:
No matter where they come from, GPS Data Files
must
be
loaded from the MMC into memory before Atlas can use them.)
The other key use for MMCs is storage of special high-detail, custom maps
containing much greater detail than the basic background map. These
Custom
Map Files
(file format *.lcm) can also be shared between Atlas units and
personal computers.
Atlas automatically reads Custom Map Files directly from the pre-loaded MMC
MapCards. To use a custom map, all you need to do is slide an MMC
containing a map into the unit.
Atlas
The Atlas is perfect for precise personal navigation right out of the box. It
comes loaded with the basic built-in custom Silva background map. This
background map includes: low-detail maps of the whole world (containing
cities, major lakes, major rivers, political boundaries); and medium-detail maps
of the United States (containing all incorporated cities; Interstate, U.S. and
state highways; Interstate highway exits and exit services information; large-
and medium-sized lakes and streams.)
It is MMC-capable, but a card is not included in the package.
NOTE:
This unit
can search for waypoints, map places and highway exits (US only). It also
offers exit services information (US only), but no Point of Interest (POI)
information is included. POI information is available in MapCreate maps.
Please contact your local dealer for information/purchase.
Introduction to GPS and WAAS
Well, now you know the basics of how Atlas does its work. You might be ready
to jump ahead to Section 2,
Installation & Accessories,
so you can install the
batteries. Or, you might want to see how our text formatting makes the manual
tutorials easy to skim. If that's the case, refer to "How to Use This Manual". But,
if you want to understand the current state of satellite navigation, look over this
segment describing how GPS and its new companion WAAS work together to
get you where you're going.
The Global Positioning System (GPS) was launched July 17, 1995 by the
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