Lowrance 5200c 操作指南

If you're using only the factory-loaded background map, the maximum
zoom range for showing additional map detail is 20 miles. You can con-

tinue to zoom in closer, but the map will be enlarged without revealing

more map content (except for a few major city streets.) Load your own

high-detail custom map made with MapCreate (or a pre-made Free-

domMap from LEI), and you can zoom in to 0.02 miles with massive

amounts of accurate map detail.

Map Pages with high-detail MapCreate map of an urban area loaded

on the MMC. At left, arterial streets appear at the 4 mile zoom range,

with a few Point of Interest icons visible. Center, numerous dots

representing Points of Interest are visible at the 2 mile range, along

with minor streets. Right, at the 0.4 mile zoom, you can see an

interstate highway with an exit, major and minor streets as well

as Point of Interest icons.

Background map vs. MapCreate map content
The background map includes: low-detail maps of the whole world, con-

taining cities, major lakes, major rivers, political boundaries, and me-

dium-detail maps of the United States.
The medium-detail U.S. maps contain: all incorporated cities, shaded

metropolitan areas, county boundaries, shaded public lands (such as

national forests and parks) and some major city streets. Also included

are Interstate, U.S. and state highways, large- and medium-sized lakes

and streams and more than 60,000 navigation aids with 10,000 wrecks

and obstructions in U.S. coastal and Great Lakes waters. New for 2007

are more than 3,000 enhanced lake maps that show better defined

shorelines, depth contours and other underwater features.
MapCreate custom maps include massive amounts of information not

found in the background map. MapCreate contains: the searchable

Points of Interest database, all the minor roads and streets, all the

landmark features (such as summits, schools, radio towers, etc.); more

rivers, streams, smaller lakes and ponds and their names.