Bedienungsanleitung Garmin GPSMAP 8422 MFD (Seite 51 von 62) (Englisch)

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autopilot when navigating a route or an Auto Guidance line

with many frequent turns or at higher speeds. For straighter

routes or slower speeds, lowering this value can improve

autopilot accuracy.

Speed Sources: Sets the source for the speed readings.

Auto Guidance: Sets the measurements for the Preferred

Depth, Vertical Clearance, and Shoreline Distance, when you

are using some premium maps.

Route Start: Selects a starting point for route navigation.

Auto Guidance Path Configurations

CAUTION

The

Preferred Depth and Vertical Clearance settings influence

how the chartplotter calculates an Auto Guidance path. If an

area has an unknown water depth or an unknown obstacle

height, the Auto Guidance path is not calculated in that area. If

an area at the beginning or the end of an Auto Guidance path is

shallower than the Preferred Depth or lower than the Vertical

Clearance settings, the Auto Guidance path may not be

calculated in that area, depending on the map data. On the

chart, the course through those areas appears as a gray line or

a magenta and gray striped line. When your boat enters one of

those areas, a warning message appears.

NOTE: Auto Guidance is available with premium charts, in some

areas.

NOTE:

Not all settings apply to all maps.

You can set the parameters the chartplotter uses when

calculating an Auto Guidance path.

Preferred Depth: Sets the minimum water depth, based on

chart depth data, that your boat can safely travel over.

NOTE:

The minimum water depth for the premium charts

(made before 2016) is 3 feet. If you enter a value of less than

3 feet, the charts only use depths of 3 feet for Auto Guidance

path calculations.

Vertical Clearance: Sets the minimum height of a bridge or

obstacle, based on chart data, that your boat can safely

travel under.

Shoreline Distance: Sets how close to the shore you want the

Auto Guidance path to be placed. The

Auto Guidance path

may move if you change this setting while navigating. The

available values for this setting are relative, not absolute. To

ensure that the Auto Guidance line is placed the appropriate

distance from shore, you can assess the placement of the

Auto Guidance path using one or more familiar destinations

that require navigation through a narrow waterway (

Adjusting

the Distance from Shore,

page

14).

Adjusting the Distance from Shore

The

Shoreline Distance setting indicates how close to the shore

you want the Auto Guidance line to be placed. The Auto

Guidance line may move if you change this setting while

navigating. The available values for the Shoreline Distance

setting are relative, not absolute. To ensure the Auto Guidance

line is placed the appropriate distance from shore, you can

assess the placement of the Auto Guidance line using one or

more familiar destinations that require navigation through a

narrow waterway.

Dock your vessel or drop the anchor.

Select Settings

> Preferences > Navigation > Auto

Guidance > Shoreline Distance > Normal

Select a destination that you have navigated to previously.

Select Navigate To

> Auto Guidance

Review the placement of the Auto Guidance line, and

determine whether the line safely avoids known obstacles

and the turns enable efficient travel.

Select an option:

• If the placement of the Auto Guidance line is satisfactory,

select Menu > Navigation Options >

Stop Navigation

and proceed to step 10.

• If the Auto Guidance line is too close to known obstacles,

select Settings > Preferences > Navigation > Auto

Guidance >

Shoreline Distance > Far

• If the turns in the Auto Guidance line are too wide, select

Settings > Preferences > Navigation > Auto Guidance

> Shoreline Distance

> Near

If you selected

Near or Far in step 6, review the placement of

the Auto Guidance line, and determine whether the line

safely avoids known obstacles and the turns enable efficient

travel.

Auto Guidance maintains a wide clearance from obstacles in

open water, even if you set the Shoreline Distance setting to

Near

or Nearest. As a result, the chartplotter may not

reposition the Auto Guidance line, unless the destination

selected requires navigation through a narrow waterway.

Select an option:

• If the placement of the Auto Guidance line is satisfactory,

select Menu >

Navigation Options > Stop Navigation

and proceed to step 10.

• If the Auto Guidance line is too close to known obstacles,

select Settings >

Preferences > Navigation > Auto

Guidance > Shoreline Distance > Farthest

• If the turns in the Auto Guidance line are too wide, select

Settings

> Preferences > Navigation > Auto Guidance

> Shoreline Distance > Nearest

If you selected

Nearest or Farthest in step 8, review the

placement of the Auto Guidance line, and determine

whether the line safely avoids known obstacles and the turns

enable efficient travel.

Auto Guidance maintains a wide clearance from obstacles in

open water, even if you set the Shoreline Distance setting to

Near or

Nearest. As a result, the chartplotter may not

reposition the Auto Guidance line, unless the destination

selected requires navigation through a narrow waterway.

Repeat steps 3 through 9 at least once more, using a

different destination each time, until you are familiar with the

functionality of the Shoreline Distance setting.

Communications Settings

NMEA 0183 Settings

Select Settings > Communications >

NMEA 0183 Setup

Port Types: See Setting the Communication Format for Each

NMEA

0183 Port, page

44.

Output Sentences: See Configuring NMEA

0183 Output

Sentences, page

43.

Position Precision: Adjusts the number of digits to the right of

the decimal point for transmission of NMEA output.

XTE Precision: Adjusts the number of digits to the right of the

decimal point for NMEA

crosstalk error 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.

Defaults: Restores the

NMEA 0183 settings to the original

factory defaults.

Diagnostics: Displays NMEA 0183 diagnostic information.

Configuring NMEA

0183 Output Sentences

You can enable and disable NMEA 0183 output sentences.

Select Settings > Communications >

NMEA 0183 Setup >

Output Sentences

Select an option.

Device Configuration 43

Garmin GPSMAP 8422 MFD Seite 51

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