Setting Alarms; Navigation Alarms; Setting The Anchor Drag Alarm; System Alarms - Garmin GPSMAP 87 Series Owner's Manual

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Setting Alarms

The Beeper setting must be turned on to make alarms audible
(Sounds and Display Settings, page
alarms could lead to injury or property damage.

Navigation Alarms

Select Settings > Alarms > Navigation.
Arrival: Sets an alarm to sound when you are within a specified
distance or time from a turn or a destination.
Anchor Drag: Sets an alarm to sound when you exceed a
specified drift distance while anchored.
Off Course: Sets an alarm to sound when you are off course by
a specified distance.
Boundary Alarms: Disables and enables all boundary alarms.

Setting the Anchor Drag Alarm

You can set an alarm to sound if you have moved more than an
allowable distance. This is very useful when anchoring
overnight.
1
Select Settings > Alarms > Navigation > Anchor Drag.
2
Select Alarm to turn on the alarm.
3
Select Set Radius, and select a distance on the chart.
4
Select Back.

System Alarms

Alarm Clock: Sets an alarm clock.
Unit Voltage: Sets an alarm to sound when the battery reaches
a specified low voltage.
GPS Accuracy: Sets an alarm to sound when the GPS location
accuracy falls outside the user-defined value.

Sonar Alarms

The sonar alarms feature is a tool for situational awareness only
and may not prevent grounding in all circumstances. It is your
obligation to ensure safe operation of the vessel.
The shallow water alarm feature is a tool for situational
awareness only and may not prevent groundings in all
circumstances. It is your obligation to ensure safe operation of
the vessel.
The Beeper setting must be turned on to make alarms audible
(Sounds and Display Settings, page
alarms could lead to injury or property damage.
NOTE: Not all options are available on all transducers.
From an applicable sonar view, select Menu > Sonar Setup >
Alarms.
You can also open the sonar alarms by selecting Settings >
Alarms > Sonar.
Shallow Water: Sets an alarm to sound when the depth is less
than the specified value.
Deep Water: Sets an alarm to sound when the depth is greater
than the specified value.
FrontVü Alarm: Sets an alarm to sound when the depth in front
of the vessel is less than the specified value, which can help
you avoid running aground
page
33). This alarm is available only with Panoptix FrontVü
transducers.
Water Temp.: Sets an alarm to sound when the transducer
reports a temperature that is 2°F (1.1°C) above or below the
specified temperature.
Device Configuration
CAUTION
60). Failure to set audible
WARNING
CAUTION
60). Failure to set audible
(Setting the FrontVü Depth Alarm,
Contour: Sets an alarm to sound when the transducer detects a
suspended target within the specified depth from the surface
of the water and from the bottom.
Fish
Fish: Sets an alarm to sound when the device detects a
suspended target.
sets the alarm to sound when fish of all sizes are
detected.
sets the alarm to sound only when medium or large
fish are detected.
sets the alarm to sound only when large fish are
detected.

Setting Weather Alarms

Before you can set weather alarms, you must have a compatible
chartplotter connected to a weather device, such as a GXM
device, and have a valid weather subscription.
1
Select Settings > Alarms > Weather.
2
Turn on alarms for specific weather events.

Setting the Fuel Alarm

The Beeper setting must be turned on to make alarms audible
(Sounds and Display Settings, page
alarms could lead to injury or property damage.
Before you can set a fuel level alarm, a compatible fuel flow
sensor must be connected to the chartplotter.
You can set an alarm to sound when the total amount of
remaining onboard fuel reaches the level you specify.
1
Select Settings > Alarms > Fuel > Set Total Fuel Onboard
> On.
2
Enter the remaining amount of fuel that triggers the alarm,
and select Done.

My Vessel Settings

NOTE: Some settings and options require additional charts or
hardware.
Select Settings > My Vessel.
Transducers: Shows all transducers on the network, allows you
to change transducers, and allows you to view diagnostic
information
(Selecting the Transducer Type, page
Depth and Anchoring: Allows you to enter information about
the keel
(Setting the Keel Offset, page
The Anchor Height value is the height of the anchor above
the waterline. The Anchor Scope value is the ratio of the
length of anchor rode in use to the vertical distance from the
bow of the vessel to the bottom of the water. These anchor
settings are used to calculate the Target Anchor Rode date
field.
Temp. Offset: Allows you to set an offset value to compensate
for the water temperature reading from a NMEA 0183 water-
temperature sensor or a temperature-capable transducer
(Setting the Water Temperature Offset, page
Calibrate Water Speed: Calibrates the speed-sensing
transducer or sensor
(Calibrating a Water-Speed Device,
page
64).
Fuel Capacity: Sets the combined fuel capacity of all the fuel
tanks on your vessel
(Setting the Fuel Capacity of the Vessel,
page
48).
Vessel Type: Enables some chartplotter features based on the
boat type.
CZone™: Sets the digital switching circuits.
SeaStar Instance: Sets the digital switching circuits.
CAUTION
60). Failure to set audible
28).
24) and the anchor.
64).
63

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