Humminbird 757c Fish Finder User Manual


 
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the area under and adjacent to your boat, including the following items:
RTS® (Real Time Sonar) Window
Structure -wherefishmaybe hiding.
Thermoclines - layers of water with different
temperaturesthat appear at differentdepthsand
differenttimesoftheyear.Athermoclinetypically
appears as a continuous band of many colors
movingacrossthedisplay at thesamedepth.
83 kHz Blue Fish Symbol
Bait Ball
Fish - the Fishing Systemdisplays fish as arches
and/orfishicons,andcanbesettoalarmwhena
fishofa certain sizeis detected.Whena targetis
detected, a Fish ID+™ symbol appears on the
displaywiththedepthdisplayedaboveit.Thesize
of thesymbolindicates the intensity ofthe sonar
return. The unit will clearly show schools of Bait
Fish as "clouds" of different shapes and sizes,
dependingonthenumberoffishandboatspeed.
Low Sonar Intensity Return
High Sonar Intensity Return
device is connected to the700 Series™FishingSystem. If bothdevices areconnected,then only
200 kHz Orange Fish Symbol