Bedienungsanleitung Garmin GPSMAP 557 (Seite 43 von 48) (Englisch)

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Cleaning the Screen

NOTICE

Cleaners containing ammonia will harm the anti-reflective

coating.

The device is coated with a special anti-reflective coating which

is very sensitive to skin oils, waxes, and abrasive cleaners.

Apply an eyeglass lens cleaner specified as safe for anti-

reflective coatings to the cloth.

Gently wipe the screen with a soft, clean, lint-free cloth.

Calibrating the Touchscreen

You can calibrate the screen if the screen is not properly

responding to the touches. The chartplotter touchscreen does

not normally require calibration.

Select Settings > System > Display > Calibrate

Touchscreen.

Follow the on-screen instructions.

Screenshots

You can capture a screenshot of any screen shown on your

chartplotter as a bitmap (.bmp) file. You can transfer the

screenshot to your computer.

Capturing Screenshots

Insert a memory card into the card slot.

Select Settings > System > Display > Screenshot Capture

> On.

Go to a screen you want to capture.

Hold Home for at least six seconds.

Copying Screenshots to a Computer

Remove the memory card from the chartplotter, and insert it

into a card reader that is attached to a computer.

From Windows

Explorer, open the Garmin\scrn folder on the

memory card.

Copy a .bmp file from the card and paste it to any location on

the computer.

Troubleshooting

My device will not acquire GPS signals

If the device is not acquiring satellite signals, there could be few

causes. If the device has moved a large distance since the last

time it has acquired satellites or has been turned off for longer

than a few weeks or months, the device may not be able to

acquire the satellites correctly.

• Ensure the device is using the latest software. If not, update

the device software (Updating the Device Software).

• If the device is using an internal GPS antenna, make sure the

device has a clear view of the sky so that the internal

antenna can receive the GPS signal. If it is mounted inside of

a cabin, it should be close to a window so it can receive the

GPS signal. If the device is mounted inside a cabin and

cannot be placed in a location where the device can acquire

satellites, use an external GPS antenna.

• If the device is using an external GPS antenna, make sure

the antenna is connected to the chartplotter or the NMEA

network.

• If the device has more than one GPS antenna source, select

a different source (Selecting the GPS Source).

My device will not turn on or keeps turning off

Devices erratically turning off or not turning on could indicate an

issue with the power supplied to the device. Check these items

to attempt to troubleshoot the cause of the power issue.

• Make sure the power source is generating power.

You can check this several ways. For example, you can

check whether other devices powered by the source are

functioning.

• Check the fuse in the power cable.

The fuse should be located in a holder that is part of the red

wire of the power cable. A 3 Amp fuse is used in this power

cable. Check the fuse to make sure there is still a connection

inside of the fuse. You can test the fuse using a multimeter. If

the fuse is good, the multimeter reads 0 ohms.

• Check to make sure the device is receiving is at least 10

volts, but 12 volts is recommended.

To check the voltage, measure the female sockets 8 (power)

and 2 (ground) of the power cable for DC voltage. If the

voltage is less than 10 volts, the device will not turn on.

• If the device is receiving enough power but does not turn on,

contact Garmin product support at www.garmin.com/support.

My device is not creating waypoints in the correct

location

You can manually enter a waypoint location to transfer and

share data from one device to the next. If you have manually

entered a waypoint using coordinates, and the location of the

point does not appear where the point should be, the map

datum and position format of the device may not match the map

datum and position format originally used to mark the waypoint.

Position format is the way in which the GPS receiver's position

appears on the screen. Commonly displayed as latitude/

longitude in degrees and minutes, with options for degrees,

minutes and second, degrees only, or one of several grid

formats.

Map datum is a math model which depicts a part of the surface

of the earth. Latitude and longitude lines on a paper map are

referenced to a specific map datum.

Find out which map datum and position format was used

when the original waypoint was created.

If the original waypoint was taken from a map, there should

be a legend on the map that lists the map datum and position

format used to create that map. Most often this is found near

the map key.

On the chartplotter, select Settings > Units.

Select the correct map datum and position format settings.

Create the waypoint again.

The touchscreen is not responding to my touches

If the screen is not properly responding to your touches, you

should calibrate the screen. See Calibrating the Touchscreen.

The chartplotter touchscreen does not normally require

calibration.

NMEA 0183 Information

Type Sentence Description

Transmit GPAPB APB: Heading or track controller

(autopilot) sentence "B"

GPBOD BOD: Bearing (origin to

destination)

GPBWC BWC: Bearing and distance to

waypoint

GPGGA GGA: Global positioning system

fix data

GPGLL GLL: Geographic position

(latitude and longitude)

GPGSA GSA: GNSS DOP and active

satellites

GPGSV GSV: GNSS satellites in view

Appendix 37

Garmin GPSMAP 557 Seite 43

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