Garmin GMR 21/41 Using the Radar Adjustment Menu, QUIT, ENTER, ENTER, ROCKER, ROCKER, ADJ/MENU, To change a Radar adjustment menu setting:

Basic Operation > Radar Page

2.Using the ROCKER, highlight the function you want to add or remove, and press ENTER. Only functions with a check mark in the check box next to them appear on the Radar Page.

Using the Radar Adjustment Menu

Use the Radar adjustment menu to access the settings and features most commonly used on the Radar Page including: Gain, Sea Clutter, Rain Clutter, FTC, Zoom, Target Expansion, Trails, Guard Zone, VRM/EBL, MARPA, and Hide/Show Navigation Features.

To select an adjustment option from the Radar Page

1. Press ADJ/MENU to open the Radar adjustment menu.

2.Press up or down on the ROCKER to highlight the option you want to change, and then press ENTER.

To change a Radar adjustment menu setting:

1.Select an adjustment menu option using the method described previously.

2.Press up or down on the ROCKER to change the setting, range, or percentage.

3.Press ENTER to accept the change, or press QUIT to close the Radar adjustment menu.

GMR 21/41 Owner’s Manual