Humminbird 727 - Manual (Page 13)

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ormation about the area under and adjacent to your boat, including the following items:
e if either device is connected to the Fishing System. If both devices are connected, then only the
ates cursor depth on the display and the depth
w the cursor.
Battery Voltage - the voltage of the boat’s
battery; can be set to alarm if the voltage
falls below a certain point.
RTS® (Real Time Sonar) Window
Soft Bottom
Thermoclines - layers of water with different
temperatures that appear at different depths
and different times of the year. A thermocline
typically appears as a continuous band of
many gray levels moving across the display at
the same depth.
Structure - where fish may be hiding.
Fish - fish are displayed as arches and/or
fish icons, and the unit can be set to alarm
when a fish of a certain size is detected.
When a target is detected and Fish ID+
is on, a Fish ID+™ symbol with depth is
displayed. The size of the symbol shows the
intensity of the sonar return. The unit will
clearly show schools of Bait Fish as "clouds"
of different shapes and sizes, depending on
the number of fish and boat speed.
Frame and can be positioned in the Sonar View
return and bottom depth below the cursor.
83 kHz, Wide Beam Hollow Fish Symbol
200 kHz, Narrow Beam Shaded Fish Symbol
531524-1_A - 717 & 727 Man_Eng.qxp 9/30/2006 7:23 PM Page 13