Garmin GPSMAP 2108 Manuale Utente

Pagina di 124
GPSMAP
®
 2008/2108  Owner’s Manual 
27
C
onfigUring
 
The
 U
niT
4.  Select 
Off 
to disable, or select 
On
 to enable 
the NMEA output sentence.
Posn. Precision—adjust the number of digits (
Two 
Digits
Three Digits
, or 
Four Digits
) to the right of 
the decimal point for transmission of NMEA output.
Waypoint—select how the unit outputs waypoint 
identifiers (
Names 
or 
Numbers
).
Setting Alarms
You can set the unit to sound an audible alarm when 
certain conditions are met. By default, all alarms are 
turned off.
To set an alarm:
1.  From the Home screen, select 
Configure
 > 
Alarms
.
2.  Select an alarm category (
Navigation
System
, or 
Sonar Warnings
).
3.  Select an alarm.
4.  Select 
On
 to turn the alarm on, and then use 
the 
ROCKER
 to specify alarm information.
Press left or right 
on the 
ROCKER 
to move fields.
Press up or down 
on the 
ROCKER 
to increase or 
decrease.
Setting Navigation Alarms
To set a navigation alarm, from the Home screen, 
select 
Configure
 > 
Alarms 
Navigation
.
Anchor Drag—set an alarm to sound when you 
exceed a specified drift distance.
Arrival—set an alarm to sound when you are within 
a specified distance or time from a destination
waypoint.