Garmin 100 BLUE User Manual

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Unit Operation
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.
Setup Menu: Chart Tab
F
Fish Symbols in Dual Frequency Mode
Whiteline Selections
FF 100 Blue.indd
09/18/01, 2:58 PM
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