Garmin 100 BLUE User Manual

Page of 50
16
Unit Operation              
Fish Symbols
— 
All available information will be displayed.
— 
Suspended targets will display as symbols. In this mode, 
background information will still be displayed making 
fi sh identifi cation easier.
 
Same as above with target depth displayed.
— 
Suspended targets displayed as symbols.  No background 
information will be displayed in this mode.
— 
Same as above with target depth displayed.
Frequency (continued)
The wide cone angles associated with low frequencies (40° for 50kHz) 
provide a large coverage area for fi nding fi sh.  However, this also means that 
wide cone angles produce less bottom detail and resolution.  The narrow 
cone angles associated with high frequencies (10° for 200kHz) provide 
better bottom resolution and crisper detail, but therefore cannot show a 
large coverage area for fi nding fi sh.  Dual frequency mode combines the 
improved contour detail and depth readings of the 200kHz  frequency with 
the wide coverage area of the 50kHz frequency.
To select a Frequency:
1. Highlight the ‘Chart’ tab on the Setup Menu.
2. Highlight the ‘Frequency’ selection fi eld and press ENTER.
3. Using the UP or DOWN Arrow, choose ‘200kHz,’ 50kHz’ or ‘Dual’ and 
press ENTER.  The selected frequency will be displayed in the bottom 
left-hand corner of the chart.
Fish Symbols
‘Fish Symbols’ allows the user to determine how the chart will display 
underwater targets and background information.  If ‘Fish Symbols’ is set 
to ‘Off,’ the unit will display all of the available information about the 
underwater environment.  If a fish symbol is selected, the chart will display 
only the information related to that symbol. 
To select a Fish Symbol:
1. Highlight the ‘Chart’ tab on the Setup Menu.
2. Highlight the ‘Fish Symbol’ selection fi eld and press ENTER.
3. Using the UP or DOWN Arrow, select the desired symbol and press 
ENTER.
Setup Menu: Chart Tab
FF 100 Blue.indd
09/18/01, 2:58 PM
16