Garmin GPSMAP 175 - Manual (Page 72)

A. The timer field can
be set to count down
from a specified
interval or provide a
running count of
elapsed time.
B. The ‘On’ setting of
the arrival alarm
will cause the alarm
to sound only for
the final destination waypoint of a route at the distance specified.
SETUP MENUS
Timers & Alarms
The timer & alarms submenu is used to control various alarm/timer settings.
• Timer sounds an alarm when a (count down) time interval (up to
99:59:59) has expired, or provides an elapsed (count up) timer up to
99:59:59.
To use the timers:
1. Select the ‘Count Down’ menu option.
2. Enter the desired time interval in the interval field, and press T.
3. Once the count down time has expired, an alarm message will appear,
and the timer will automatically switch to the count up mode.
4. To reset the timer, select the reset option and press T.
• Clock Alarm provides an alarm for the system clock. To use the clock alarm,
select the ‘On’ option and enter the desired time of day in the time field.
• Arrival Alarm lets you specify an alarm to sound when you’re a specified
distance away from a destination waypoint. Three options are available:
• Off- No arrival alarm will sound.
• Auto- An arrival alarm will sound one minute before the destination,
based upon our current speed and course over ground.
• On- An arrival alarm will sound at the alarm distance specified in the
distance field for the destination waypoint. (The ‘On’ setting will only
provide an arrival alarm for the final destination waypoint of the
active route.)
• Crosstrack Alarm provides an alarm for crosstrack error (XTK) that will
sound when your vessel is off course by more than a specified distance,
up to 99.99 nm.
• Anchor Drag Alarm lets you specify an alarm to sound when you’ve
exceeded a specified drift distance, up to 9999 feet or meters. Whenever
the anchor alarm is triggered, an anchor icon will appear in the status bar.
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175 Manual 7/31/98 3:57 PM Page 68