Garmin echoMAP CHIRP 45 Series, Руководство пользователя

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Introduction 41
many digits to the right of the decimal
point are transmitted in a NMEA output,
and how waypoints are identified (NMEA
0183 Settings, page 41) .
NMEA 2000 Setup
: Allows you to view and
label the devices on the NMEA 2000 net-
work (NMEA 2000 Settings, page 41) .
Marine Network : Allows you to view the
devices with which you are sharing maps,
sonar, or radar. Not available on all chart-
plotter models.
NOTE : You can only view networked data
on a model that supports that data. For
example, you cannot view networked ra-
dar on model that does not support radar.
NMEA 0183
The chartplotters support the NMEA 0183
standard, which is used to connect various
NMEA 0183 devices, such as VHF radios,
NMEA instruments, autopilots, wind sensors,
and heading sensors.
To connect the chartplotter to optional NMEA
0183 devices, see the chartplotter installation
instructions.
The approved NMEA 0183 sentences for the
chartplotter are GPAPB, GPBOD, GPBWC,
GPGGA, GPGLL, GPGSA, GPGSV,
GPRMB, GPRMC, GPRTE, GPVTG, GPW-
PL, GPXTE, and Garmin proprietary sen-
tences PGRME, PGRMM, and PGRMZ.
This chartplotter also includes support for
the WPL sentence, DSC, and sonar NMEA
0183 input with support for the DPT (depth)
or DBT, MTW (water temperature), and VHW
(water temperature, speed, and heading)
sentences.
NMEA 0183 Settings
Select Settings > Communications >
NMEA 0183 Setup .
Sounder : Enables NMEA 0183 output sen-
tences for the sounder (if applicable).
Route : Enables NMEA 0183 output sentenc-
es for routes.
System : Enables NMEA 0183 output sen-
tences for system information.
Garmin : Enables NMEA 0183 output sen-
tences for Garmin proprietary sentences.
Posn Precision : Adjusts the number of digits
to the right of the decimal point for trans-
mission of NMEA output.
Waypoint IDs : Sets the device to transmit
waypoint names or numbers via NMEA
0183 while navigating. Using numbers
may resolve compatibility issues with
older NMEA 0183 autopilots.
Diagnostics
: Displays NMEA 0183 diagnos-
tic information.
Defaults : Restores the NMEA 0183 settings
to the original factory defaults.
NMEA 2000 Settings
Select Settings > Communications >
NMEA 2000 Setup .
Device List : Displays the devices connected
to the network.
Label Devices : Changes the labels for avail-
able connected devices.
Setting Alarms
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 dis -
tance.
System Alarms
Alarm Clock : Sets an alarm clock.
Device 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.
Units Settings
Select Settings > Units .
System Units : Sets the unit format for the
device.
Variance : Sets the magnetic declination, the
angle between magnetic north and true
north, for your present location.
North Reference : Sets the direction refer-
ences used in calculating heading infor-
mation. True sets geographic north as the
north reference. Grid sets grid north as
the north reference (000º). Magnetic sets