Lowrance electronic IFINDER PRO - Manual (Page 33)

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The map zoom range is the distance across the screen. This number
shows in the lower left corner of the screen. In the first example below
left, the range is 4,000 miles from the left edge of the map to the right
edge of the map.
The Zoom In and Zoom Out keys zoom the map to enlarge or reduce its
coverage area and the amount of mapping detail shown. There are 39
available map zoom ranges, from 0.02 miles to 4,000 miles.
Far left, Map Page opening screen.. Center, zoomed to 100 miles and
right, zoomed to 6 miles. Over Zoomed means you have reached the
detail limits in an area covered only by the basic background map.
Zooming in any closer will reveal no more map details because a high-
detail custom map has not been loaded on the MMC for this area.
If you're using only the factory-loaded background map, the maximum
zoom range for showing additional map detail is 8 miles. You can con-
tinue to zoom in closer, but the map will simply be enlarged without
revealing more map content (except for a few major city streets). Load
your own high-detail custom map made with MapCreate, and you can
zoom in to 0.05 miles with massive amounts of accurate map detail.
Map Pages with high-detail 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 become visible at the 3 mile range. 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.