Garmin GPS III Plus - Manual (Page 47)

37
REFERENCE
Map Page Options
MapSource Info— shows the number of maps downloaded from the optional
MapSource software package and the amount of memory used (in kilobytes).
MapSource allows you to supplement the built-in map with up to 1.44 MB of
additional detail, including residential streets and topographic information. Each
downloaded map is described by name, and may be deselected if you wish to
retain the map in memory, but not display the data on the Map Page. (When a
MapSource file is selected, the boundary for any downloaded map is shown on
the Map Page as a gray shaded outline.)
To display the MapSource Info Page:
1. Highlight ‘MapSource Info’ and press ENTER.
2. Use the rocker keypad to scroll through the list of downloaded maps.
3. To select/deselect a map, highlight the box to the immediate left of the desired map.
Press ENTER to select/deselect the map. The map is selected and will be displayed on
the Map Page when an “X” appears in the box adjacent to that map.
4. To Enable/Disable All maps, press MENU from the MapSource Info Page, select the
desired setting, and press ENTER.
Measure Dist— allows you to measure the bearing and distance between any
two points on the map display.
To measure bearing and distance between two points:
1. Highlight ‘Measure Dist’ and press ENTER. An on-screen pointer will appear on the
map display at your present position.
2. Move the cursor to the desired reference point (the point you want to measure from)
and press ENTER.
3. Move the cursor to the point you want to measure to. The bearing and distance from
the reference point will be displayed at the top of the page.
When using the ‘Measure
Dist’ option, the arrow
includes an ‘Enter Reference’
prompt and the arrow position
appears at the top of the map
display.
The MapSource Info page lists
any detailed maps that have
been downloaded from the
optional MapSource software
package.