GPSMAP 620 and GPSMAP 640 Owner’s Manual 5Marine Mode: Getting StartedMarine Mode: Getting StartedStep 1: Mount Your GPSMAP 620 orGPSMAP 6401. Install the marine mount in your boat according to theGPSMAP 620/640 Marine Mount Installation Instructions.2. Place the device in the marine mounting bracket (page 2).Step 2: Configure Your DeviceTo power on your device if it does not power on automatically,press and hold until the Garmin logo appears on the screen.Follow the on-screen prompts to set up the marine mode on thedevice for the first time. To power off your GPSMAP 620 orGPSMAP 640, press and hold .Step 3: Acquire Satellites1. Go outdoors to an open area, away from tall buildings andtrees.2. Turn on your GPSMAP 620 or GPSMAP 640.Acquiring satellite signals can take a few minutes. The barsindicate satellite strength. When at least one of the bars is green,your device has acquired satellite signals. Now you can select adestination and navigate to it.Step 4: Use Your GPSMAP 620 orGPSMAP 640➊ ➋ ➌ ➍➎Marine Mode: Home Screen➊ Usage mode. A boat icon represents marine mode, and a caricon represents automotive mode. Touch this icon to changemodes.➋ GPS satellite strength.➌ Battery status.➍ Current time.➎ Home screen categories and actions. Touch an icon to view theassociated menu or perform the associated action.
