Sonar Alarms

Shallow Water/Deep Water—sets an alarm to sound when you
enter an area of water that is too shallow or deep. Select On, and
then specify a depth. You must be receiving sonar NMEA data for
this function to work.
Water Temp—sets an alarm to indicate if the water temperature has
exceeded or dropped below a specic temperature, or fallen outside/
inside a specic temperature range. Select Above or Below and then
enter a specic temperature, or select Inside or Outside and enter a
range of temperatures. You must be receiving sonar NMEA data for
this function to work.
Drift—sets an alarm to sound when you exceed a specied drift
distance. Select On, and then enter a specic distance.
Fish—sets an alarm to sound when sh are detected with sonar.
Calendar Tab
Use the Calendar tab to plan trips, view sun and moon, and hunting
and shing information for the day.
Calendar Tab in Day View
Highlight an arrow and press ENTER to change the date in the view.
Sunrise and
sunset times
for the current
location and
date.
List of points
and routes
added to this
date.

Calendar Options

The options menu is available in all three calendar views. Press
MENU on any of the calendar views to open the options menu.
To view the Sun & Moon Information tab or Hunt & Fish sub tab,
highlight View Sun and Moon or View Hunt and Fish, and press
ENTER.
78 GPSMAP 378/478 Owner’s Manual
MAIn Menu > cAlendAr tAb