Garmin GPSMAP 130 User Manual download pdf (Page 35)

Selecting Map Scales

The map display has 16 available range scales from 1/8th to 4096 n.m. (1/4 to

7500km). The map scale is controlled by the

keys, with the current scale dis-

played at the bottom of the data window.

To select a map scale:

1. Press the up Z key to zoom out and the down Z key to zoom in.

The GPSMAP 130’s system has a built-in worldwide database to 64 n.m.(see

Appendix D for a built-in coverage map), with more detailed coverage available

through the use of G-chart

data cartridges (see Section 10 for installing and

using G-chart

cartridges). The GPSMAP 130 will display cartography as long as

there is chart information available for the range you’ve selected. Map coverage

will conform to the following conditions:

• When the selected zoom range is covered by either the internal database or a

G-chart data cartridge, cartography will be displayed.

• When the selected zoom range is covered by both the internal database and

a G-chart cartridge, cartography will be displayed using the data with the best resolution.

• When the selected zoom range exceeds the resolution of the chart in use by

up to two settings, overzoom cartography will be displayed. The display

will not show any filled landmass areas, and an ‘Ovr Zm’ warning will appear

in the scale field. The lat/lon grid will also be turned on regardless of the map

configuration setting.

• When the selected zoom range exceeds the resolution of the chart in use by more than two

settings, all cartography will be replaced by a track plot display, and a ‘No Map’ warning

will appear in the scale field. The lat/lon grid will be displayed regardless of the map con-

figuration setting. Additional caution should be used while navigating in

track plot mode.

A. Whenever the selected map scale exceeds the reso-

lution of the chart by up to two settings, an ‘Ovr

Zm’ warning will appear in the scale field.

B. Whenever the selected map scale exceeds the reso-

lution of the chart by more than two settings, a ‘No

Map’ warning will appear in the scale field.

SECTION

MAP PAGE

Selecting Map Scales

gps 130 7/23/98 9:21 AM Page 25

1 ... 34 35 36 ... 94

No comments

Garmin GPSMAP 130 User Manual Page 35