Whiteline; Scroll Speed - Garmin Fishfinder 100 BLUE Owner's Manual

F
NOTE: When the frequency is set to 'Dual,' the appearance
of the fi sh symbols will change. Fish returns from the center
of the beam will be black, but the fi sh returns from the edges
of the beam will be clear.

Whiteline

'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 gray-scaled. The degree of
gray-scale can be used to determine bottom hardness. See page 33 for more
details on this feature.
To change the Whiteline Setting:
1. Highlight the 'Chart' tab on the Setup Menu.
2. Highlight the 'Whiteline' selection fi eld and press ENTER.
3. Choose 'On' or 'Off' and press ENTER to accept the selection.

Scroll Speed

You can adjust the speed that the chart scrolls from right to left by
using the 'Scroll Speed' selection fi eld. If you are sitting still or the chart is
moving too fast, slowing the scroll rate can be benefi cial.
To adjust the Scroll Speed:
1. Highlight the 'Chart' tab on the Setup Menu.
2. Highlight the 'Scroll Speed' selection fi eld and press ENTER.
3. Choose 'Fast,' 'Medium,' 'Slow' or 'Pause,' then press ENTER to accept
the selection.
Unit Operation
Setup Menu: Chart Tab
Fish Symbols in Dual Frequency Mode
Whiteline Selections
17