Garmin Fishfinder 100 BLUE Owner's Manual

Also see for Fishfinder 100 Blue: Specifications

16Unit OperationFish Symbols— All available information will be displayed.— Suspended targets will display as symbols. In this mode,background information will still be displayed makingfish identification easier.— Same as above with target depth displayed.— Suspended targets displayed as symbols. No backgroundinformation 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 finding fish. However, this also means thatwide cone angles produce less bottom detail and resolution. The narrowcone angles associated with high frequencies (10° for 200kHz) providebetter bottom resolution and crisper detail, but therefore cannot show alarge coverage area for finding fish. Dual frequency mode combines theimproved contour detail and depth readings of the 200kHz frequency withthe 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 field and press ENTER.3. Using the UP or DOWN Arrow, choose ‘200kHz,’ 50kHz’ or ‘Dual’ andpress ENTER. The selected frequency will be displayed in the bottomleft-hand corner of the chart.Fish Symbols‘Fish Symbols’ allows the user to determine how the chart will displayunderwater targets and background information. If ‘Fish Symbols’ is setto ‘Off,’ the unit will display all of the available information about theunderwater environment. If a fish symbol is selected, the chart will displayonly 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 field and press ENTER.3. Using the UP or DOWN Arrow, select the desired symbol and pressENTER.Setup Menu: Chart Tab