Humminbird 727, 717 manual Ormation

531524-1_A - 717 & 727 Man_Eng.qxp 9/30/2006 7:23 PM Page 13

ormation about the area under and adjacent to your boat, including the following items:

Frame and	can be positioned in the Sonar View
return and	bottom depth below the cursor.

ates cursor	depth on the display and the depth
w the cursor.

83 kHz, Wide Beam Hollow Fish Symbol

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.

200 kHz, Narrow Beam Shaded Fish Symbol

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.

Soft Bottom

RTS® (Real Time Sonar) Window

Battery Voltage - the voltage of the boat’s battery; can be set to alarm if the voltage falls below a certain point.

e if either device is connected to the Fishing System. If both devices are connected, then only the

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