Garmin GPSMAP 76S - Manual (Page 55)

F
53
Getting Started
Reference
WARNING: If ‘User’ is selected, you must periodically update the
magnetic variation at your present position. Failure to update this
setting may result in substantial differences between the information
displayed on your unit and external references, such as a magnetic
compass.
‘Magnetic Variation’ — displays the magnetic variation at your current loca-
tion. If ‘User’ is selected for the ‘North Reference’, this field is used to enter
the magnetic variance.
Setup Menu — ‘Alarms’ Tab
The ‘Alarms’ Tab contains settings for Anchor Drag, Approach and Arrival, Off
Course, Shallow Water, and Deep Water. These settings will determine if, and
when an warning beep is sounded and/or a message is displayed.
‘Anchor Drag’ — The Anchor Drag Alarm alerts you when the boat has
drifted more than the set distance. The alarm can be turned ‘On’ or ‘Off’.
‘Approach and Arrival’ — The Approach and Arrival Alarms alert you when
you are approaching a turn or arriving at your destination. ‘Automatic’ will
alert you between 15 and 90 seconds before depending on your speed. ‘Dis-
tance’ and ‘Time’ alert you at the specified distance or time.
‘Off Course’ — The Off Course Alarm will alert you when you are off course
more than the distance set. The Off Course alarm can be turned ‘On’ or ‘Off’.
‘Shallow Water’ — This alarm requires input from a NMEA device supplying
the “DPT” sentence. The Shallow Water alarm will alert you when the water
depth is less than the depth set.
‘Deep Water’ — This alarm requires input form a NMEA device supplying
the “DPT” sentence. The Deep Water Alarm will alert you when the water is
deeper than the depth set.
Setup Menu — Alarms Tab
Setup Menu — ‘Alarms’ Tab