Garmin GMR 21/41 Display Sub Tab, Blue, Line, ENTER, Ahead, Rings, Black, White, Center, Offset, Center, Heading, Bearing, Features, Absolute, Relative, Relative, Absolute

		Basic Operation > Radar Tab
• Cross-talkRejection—toggles cross-talk rejection on or off.	• Navigation Features—allows you to show or hide
Radar cross-talk may occur when two or more radar equipped	navigational features on the Radar Page. Use the ROCKER
vessels are operating in proximity to one another. Cross-talk	and the ENTER key to select or clear options.
rejection automatically filters out the cross-talk interference.	• Waypoints—show user waypoints on the Radar Page.
Display Sub Tab	• Bearing Line—show a bearing line on the Radar Page. The
Use the Display sub tab to adjust settings for: Center Offset, Rings,		bearing line appears as a line from your current position to
Background color, Heading Line, Bearing Reference, and Navigation		the active destination waypoint.
Features. The available Display sub tab options are:	• Course Line—show a course line from your starting
• Center Offset—sets your location on the screen. Center		point to the active destination waypoint, which is similar to
		navigation on a map.
places your current location in the center of the screen. Look
Ahead shifts your current location toward the bottom of the
screen, allowing you to view an area farther ahead. Auto Shift
adjusts your location on the screen according to the current
speed.
• Rings—toggles the radar rings on or off.
• Background—sets the background color for the Radar Page.
Available options are Black, Blue, or White.
• Heading Line—toggles the Heading Line on or off.
• Bearing Reference—sets your bearing, either Absolute or
Relative. Relative calculates the bearing relative to your
vessel's heading. Absolute calculates the bearing relative to
North.

GMR 21/41 Owner’s Manual 11