Garmin gpsmap 198c sounder User Manual

U

SING

 S

ONAR

 > 

S

ONAR

 T

AB

 O

PTIONS

Double-Arrow

1.  Press 

MENU twice to access the Main Menu. Use the 

ROCKER to highlight the Sonar tab.

2.  Using the 

ROCKER, highlight the field, and press ENTER. 

3.  Highlight the setting, and press 

ENTER.

4.  Press 

QUIT to return to the Sonar Page or a previous page.

Fish Symbols—allows you to determine how the graph shows 

underwater targets and background information. If fish symbols 

are set to Off, the unit shows all available information about the 

underwater environment. If a fish symbol is selected, the graph 

shows only the information related to that symbol. Actual fish 

returns can not always appear as perfect arches (like in Simulator 

Mode), due to the speed, fish orientation, or other conditions. 

Fish Symbols Off— All available information is shown.

Suspended targets show as fish symbols. Background 

information is shown.

Same as above with the target depth attached.

Suspended targets show as fish symbols. No background 

information is shown.

Same as above with target depth attached.

Water Type—because sound waves travel through fresh and salt 

water at different rates it is necessary to select the water type to 

ensure accurate readings on the unit.