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GPSMAP 188/188C Sounder Owner’s Manual 43
MAIN MENU > TIDE TAB
GPS Tab Options
The GPS tab features an options page that provides access to
functions and features relating to the GPS Info display.
To display and select the GPS Tab options:
1. Press MENU.
2. Using the ROCKER, highlight an option, and press ENTER.
NOTE: If a DGPS receiver is attached to the unit and Garmin
DGPS, RTCM In/NMEA Out, or Other DGPS is enabled on
Port 2, WAAS is automatically disabled (WAAS Off). It is not
possible for the GPSMAP 188/188C Sounder to receive WAAS
and DGPS corrections at the same time.
GPS Tab Options
Tide Tab
The Tide tab shows a graphical chart that displays 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.
Tide Tab
Station
Name
Date
Tide
Chart
Event
Times
The top of the page displays the tide station being referenced,
below that the date. The top of the chart shows a 24-hour block of
local time (LCL) for your location, with the reported station time
(STA) appearing at the bottom. Daytime (light bar) and nighttime
(dark bar) show across the time scale, with the time progressing
from left to right. (Local time scales and sunrise/sunset info cannot
be available for a few stations). The solid, light vertical lines are