Garmin Marine GPS System GPSMAP User Manual

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Tide Sub Tab
The Tide sub tab contains a graphical chart that shows tide station
information in a 24-hour span starting at midnight station time. You
can choose from different dates and more than 3,000 tide stations.
Height of tide
Smallest and
largest tides
for the AM
hours
Select the tide station for which you
want to view the information.
Enter the date for which you want to
view the tide information.
Tide Sub Tab
Time
Smallest and
largest tides
for the PM
hours
The top of the page shows the tide station and date being referenced.
The chart shows a 24-hour block of time, with the time progressing
from left to right. The solid vertical lines represent 4-hour
increments; the dotted vertical lines represent 1-hour increments.
The tide curve appears as a shaded area; higher tides are taller and
lower tides are shorter. The bottom of the page indicates the times
with the highest and lowest tides.
To view a tide chart for a different tide station:
1. From the Tide sub tab, highlight the At eld, and press
ENTER. The Find Menu opens showing the tide stations.
2. Press MENU, and select Near Current Location, Near
Current Route, Near Other (select another location using
the map), or Near Destination. The list is updated with your
search requirements.
3. Select a tide station from the list, and press ENTER. The
Tide Station Information Page appears.
4. Highlight OK, and press ENTER. The Tide tab appears again
showing the tide chart for the selected tide station.
To view the tide chart for another date:
1. From the Tide sub tab with a chart open, highlight the On
eld, and press ENTER.
2. ENTER the date with the ROCKER, and press ENTER. You
can also use the zoom IN and OUT keys to view information
for another date. Press and hold IN or OUT to scroll quickly
through dates.
3. Press ENTER when nished. The unit shows the chart for the
date you entered or selected.
To use the current date again, highlight the Date eld. Press MENU,
highlight Use Current Date, and press ENTER.
80 GPSMAP 378/478 Owner’s Manual
MAIn Menu > celestIAl tAb

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