Garmin GPS 158 Owner's Manual - page 8
8
GPS 158 Owner’s Manual
System
Beeper: Sets when the beeper sounds
Speed Filter: Sets the speed filter
Language: Sets the system language
System Information: Displays the Unit ID and other information
Units
Position Format: Sets the position values to the selected format
Map Datum: Sets the map datum to the selected format
Heading: Sets the heading value to the selected format
Distance, Speed and elevation: Sets the values to the selected format
Depth: Sets the depth values to the selected format
Communications
Sets the serial data format and transfer mode Contact your Garmin authorized
dealer to use transfer mode, which is for software updates
NMeA
®
Out Sentences
GPRMC, GPRMB, GPGGA, GPGSA, GPGSV, GPGLL, GPBOD, GPBWC, GPVTG,
GPXTE, PGRME, PGRMZ, PGRMM, GPRTE, GPWPL, GPAPB
NMeA In Sentences
DPT, DBT, MTW, VHW, WPL
Alarms
System
Clock: Sets an alarm to sound at a specified time of day
Power: Sets an alarm to sound when the voltage is below the voltage entered
DGPS: Sets an alarm to sound when the device is using DGPS
Accuracy: Sets an alarm to sound when the GPS accuracy drops below the
specified threshold
Navigation
Anchor Drag: Sets an alarm to sound when your vessel drifts farther than the
specified distance while at anchor
Arrival: Sets an alarm to sound when you arrive at your destination
Off Course: Sets an alarm to sound when your boat is farther off course than the
specified distance