Humminbird HELIX 5 SERIES Operation Manual page 25

your boat, including the following items:
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Voltage - Power supplied to the control head.
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Temperature - Water surface temperature.
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Speed - If a Speed accessory or GPS receiver is connected,
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the Fishfinder can display the speed of the boat, and can
keep a triplog of nautical or statute miles traveled.
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(HELIX SONAR GPS, HELIX DI GPS, HELIX XD GPS only)
Thermoclines - Layers of water with different
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temperatures that appear at different depths and
different times of the year. A thermocline typically
appears as a continuous band of many colors
moving across the display at the same depth.
Sonar Color Bar - Color spectrum indicating low
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to high sonar intensity returns, where red indicates
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high intensity and white indicates low intensity.
Bait Ball
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RTS (Real Time Sonar) Window
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Second Sonar Return - When the sonar signal
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bounces between the bottom and the surface of the
water and back again. Use the appearance of the
second return to determine bottom hardness. Hard
bottoms will show a strong second return, while soft
bottoms will show a very weak one or none at all.
Cursor - Available in Freeze Frame and can be
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positioned in the Sonar View to provide depth of a
sonar return and bottom depth below the cursor. The
Latitude and Longitude of the cursor position, the
distance to travel to the cursor position, and the
bearing to the cursor position are shown with a
connected GPS receiver. Cursor information is
displayed at the top of the screen.
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What's on the Sonar Display