Viewing Tide-Station Information; Viewing Current Information - Garmin GPSMAP 420 Owner's Manual

Viewing Information
To synchronize your fuel gauges with your fuel:
From the Home screen, select
> MENU.
• Fill Up All Tanks—select when your tank is full. An estimate
of the total fuel is shown. Adjust if necessary.
• Add Fuel To Boat—select when you have added less than
a full tank. An estimate of the fuel added is shown. Adjust if
necessary.
• Set Total Fuel Onboard—select to specify the total fuel in
your tanks.
• Fuel Economy—select either
(using data from a speed wheel) for the fuel economy
calculation.

Viewing Tide-station Information

NOTE: You must use a BlueChart g2 Vision card to view Tide-
station information.
Information Tides & Currents
1. Select >
2. Select a tide station. Tide-station information is shown.

Information > Dashboard >
GPS Speed or Water Speed
> Tides.
Fuel
Select Change Date
different date.
Select Show Report
selected station.

Viewing Current Information

Use the Current Prediction screen to view information for currents.
NOTE: You must use a BlueChart g2 Vision card to view Current-
station information.
1. Select Information
2. Select a current station. Current-station information is shown.
> Manual to view tide information for a
to view the Tide Prediction Report for the
> Tides & Currents > Currents.
GPSMAP 400/500 Series Owner's Manual