Garmin GPSMAP 741xs Owner's Manual - Page 9

Initializing Unit Settings, AIS Alarm Time

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Initializing Unit Settings The first time you turn on your unit, you must configure the initial settings. NOTE: You can change these settings later using the Configure screen (page 46). Language-select the language to display on the screen. Store Demonstration-select Off. (This option is only available the first time the unit is turned on.) Welcome-select OK. NMEA Devices-if you have NMEA 0183 devices connected to a serial port, specify which ports are connected. AIS Receiver (not available if you select None for NMEA Devices)-Select Yes if one of the devices connected to a serial port is an AIS (Automatic Identification System) receiver. Position Format-specify the coordinate system to use for location readings. Time Format-specify whether you want the time shown in a 12‑hour, 24‑hour, or UTC (Universal Time Coordinated) format. Time Zone-set the time zone you want displayed for time readings. If Auto is selected for the Time Zone, the DST option is not available and is automatically set to Auto. System Units-specify units for on-screen measurements as Statute, Metric, or Nautical, or select Custom to individually define units of measure for depth, temperature, distance, speed, elevation, volume, and pressure. Minimum Safe Depth-select the minimum safe depth for your boat. Refer to GPSMAP 400/500 Series Owner's Manual your boat specifications for more information. Device Overview Shallow Water Alarm-only available if you are receiving NMEA sonar depth data. Select Yes or No. Minimum Overhead Clearance-select the minimum overhead clearance for your boat. Refer to your boat specifications for more information. AIS Alarm Range-select the distance at which an alarm will sound if an AIS vessel nears your boat (page 53). AIS Alarm Time To-select the time within which an alarm will sound if an AIS vessel is on track to intersect the Safe Zone around your boat (page 53). If a water speed wheel is detected, a message will ask if you want to calibrate it now. Select Yes or No. 3

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Device Overview
GPSMAP 400/500 Series Owner’s Manual
3
Initializing Unit Settings
The first time you turn on your unit, you must configure the initial settings.
NOTE:
You can change these settings later using the Configure screen (
page
46)
.
Language
—select the language to display on the screen.
Store demonstration
—select
OFF
. (This option is only available the first time
the unit is turned on.)
Welcome
—select
OK
.
NMEA devices
—if you have NMEA 0183 devices connected to a serial port,
specify which ports are connected.
AIS Receiver
(not available if you select
None
for
NMEA devices
)—Select
yes
if one of the devices connected to a serial port is an AIS (Automatic
Identification System) receiver.
Position format
—specify the coordinate system to use for location readings.
Time format
—specify whether you want the time shown in a
12-hour
,
24-hour
, or
UTC
(Universal Time Coordinated) format.
Time Zone
—set the time zone you want displayed for time readings. If
Auto
is selected for the Time Zone, the DST option is not available and is
automatically set to
Auto
.
SYstem Units
—specify units for on-screen measurements as
Statute
,
Metric
,
or
Nautical
, or select
Custom
to individually define units of measure for
depth, temperature, distance, speed, elevation, volume, and pressure.
Minimum SaFe depth
—select the minimum safe depth for your boat. Refer to
your boat specifications for more information.
Shallow Water Alarm
—only available if you are receiving NMEA sonar
depth data. Select
yes
or
No
.
Minimum OverheaD Clearance
—select the minimum overhead clearance for
your boat. Refer to your boat specifications for more information.
AIS Alarm Range
—select the distance at which an alarm will sound if an AIS
vessel nears your boat (
page 53
).
AIS Alarm Time To
—select the time within which an alarm will sound if an
AIS vessel is on track to intersect the Safe Zone around your boat (
page 53
).
If a water speed wheel is detected, a message will ask if you want to calibrate
it now. Select
yes
or
No
.