Garmin Fishfinder 160C Owner's Manual

Also see for Fishfinder 160C: Owner's manual Owner's manual Declaration of conformity Specification

Garmin Fishfinder 160C Owner's Manual Manual pdf 9 page image

Fishfinder 160C Owner’s Manual 3GETTING STARTED > U NDERSTANDING THE FISHFINDER AND SONARWhitelineThe Fishfinder 160C can help you to determine if the bottom is hardor soft. When the sonar sound waves are reflected back by the bottom,a hard bottom returns a stronger signal than a soft bottom. A thinwhiteline indicates a softer bottom while a thick whiteline indicatesa harder bottom. Normally, a red line shows the point where watermeets the bottom. This line follows the bottom contour, along withany significant objects lying on the bottom. The unit uses the whitelinefunction to make the bottom layer information easier to distinguish.With the Fishfinder 160C, active whiteline helps accentuate wherestrong signals are located, which makes bottom type determinationeasier. The example below shows the bottom return with and withoutthe whiteline activated.Whiteline Turned OffHard BottomWhiteline Soft BottomThermoclinesGarmin’s See-Thru technology allows the Fishfinder 160C to “see”through thermoclines and helps locate fish where they live; and fishlove thermoclines!A rough definition of a thermocline is a break in water where thewater temperature changes faster than the water above it.Thermocline