Lowrance electronic AirMap 2000C - Manual (Page 39)

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Far left, Map Page opening screen, Full Map display option. Center,
zoomed to 150 nautical miles and right, zoomed to 30 nautical miles. (Note
that the five data boxes or text boxes appearing in the bottom of these
images are
on by default. They can be individually turned off or you can
customize the display to show a different type of information in each box.)
The Zoom In and Zoom Out keys zoom the map to enlarge or reduce its cov-
erage area and the amount of mapping detail shown. There are 40 available
map zoom ranges, from 0.02 nautical miles to 4,000 nautical miles.
AirMap's high resolution screen makes it possible to display aeronautical
chart features that look like the "real thing." If you're familiar with sectional
charts, you will instantly recognize items such as obstacles, VORs, special
airspaces, paved and unpaved airports and more. As you zoom in closer,
you'll see Class B airports appear at a fairly wide zoom. Zoom in closer and
Class C and D airports appear, as well as restricted airspaces. At closer
zooms still you can even see Class C airspace borders around airports.
If you're using only the factory-loaded background map, the maximum
zoom range for showing
additional land map detail is 6 nautical miles. You
can continue 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
0.02 nautical miles with massive amounts of accurate map detail.