Garmin GPSMAP 168 Sounder - Manual (Page 53)

42
Reference
Sonar Tab Options
• Confi gure Sonar— contains the unit settings that should not require frequent change. The Sonar
setup menu contains settings for Fish Symbols, Whiteline, Scroll Speed, Scale, Noise Reject, Keel Offset,
Water Type, Remember, and Calibration.
To enter the Sonar setup menu, press the MENU key from the Sonar Page, highlight ‘Confi gure
Sonar’ and press ENTER/MARK. You may also press MENU twice from any screen, then highlight the
‘Sonar’ tab using the ARROW KEYPAD. Press the RIGHT arrow to access the selection fi elds. Each
time the Setup Menu is accessed, the unit will return to the last edited selection fi eld.
To change a setting on the Sonar tab:
1. Using the ARROW KEYPAD, highlight the desired fi eld and press ENTER/MARK and the available
options will appear.
2. Highlight the desired setting and press ENTER/MARK.
3. Press QUIT to return to the Sonar Page or previous page.
The available Sonar tab options are:
• Fish Symbols— allows the user to determine how the chart will display underwater targets
and background information. If Fish Symbols are set to ‘Off’, the unit will display all of the
available information about the underwater environment. If a fi sh symbol is selected, the chart
will display only the information related to that symbol.
• Whiteline— controls how the unit displays information about the bottom type (hard or soft).
With the Whiteline ‘Off’, the bottom return will display as black and contain no information on
bottom hardness. With Whiteline ‘On’, the bottom return will become grayscaled and can be
used to determine bottom hardness. See page 38 for more detail on this feature.
• Scroll Speed— adjusts the speed that the chart scrolls from right to left. If you are sitting
still or the chart is moving too fast, slowing the scroll rate can be benefi cial. Options are ‘Fast’,
‘Medium’, ‘Slow’ or ‘Pause’.
If you are using the GPSMAP 168 Sounder on the portable case battery power, slowing
the scroll rate will help to conserve your battery.
Sonar Menu Tab Options
Fish Symbols Off— All available information
will be displayed.
Suspended targets will display as fi sh symbols.
Background information will be displayed.
Same as above with the target depth attached.
Suspended targets display as fi sh symbols. No
background information will be displayed.
Same as above with target depth attached.
)
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