Garmin echomap 40 series Manuale d'uso - Pagina 20

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GMR 20/40 O

PERATION

Center Offset—has three settings: Center, Look Ahead, and Auto

Shift. Center places your current location in the center of the display.

Look Ahead shifts your current location toward the bottom of the

display, allowing you to view an area farther ahead. Auto Shift adjusts

your location on the display according to the current speed.

Rings—is used to turn the radar Range Rings On or Off.

Background—is used to select a background color for the Radar

page. The options are Black, Blue, and White.

Heading Line—is used to turn the Heading Line On or Off.

Bearing Reference—has two settings, Absolute and Relative.

Relative calculates the bearing relative to own vessel heading.

Absolute calculates the bearing referring to North.

Navigation Features—there are three selectable Navigation

Features: Waypoints, Bearing Line, and Course Line. When selected,

that feature is displayed on the Radar page.

• Waypoints—displays user waypoints on the Radar page.

• Bearing Line—when selected displays a Bearing Line on the

Radar page. The Bearing Line is displayed as a line from your

current position to the active destination waypoint, similar to

a traditional lollipop.

• Course Line—when selected displays a Course Line from

your starting point to the active destination waypoint, similar

to navigation on a map.

ADAR

DJUSTMENT

ENU

The MARPA Tab

See MARPA Setup on page 12.

AFC Mode—has two settings, Auto, and Manual. In Auto Mode the

scanner frequency is automatically adjusted for optimal performance

and is recommended.

The Advanced Tab

GMR 20/40 Owner's Manual