Garmin 160C Manuale Utente

G

ETTING

 S

TARTED

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U

NDERSTANDING

 

THE

 F

ISHFINDER

 

AND

 S

ONAR

The bottom of the water is always going to be the strongest signal, 

and therefore the bottom is the continuous, intense red line running 

across the bottom of the screen. The Fishfinder 160C includes the 

latest technology in interpreting bottom signals; it can see through 

). Even so, large 

schools of fish or dense structures close to the bottom can affect 

water depth return readings.
Along the top of the screen, you might see a grouping of intense 

colors. This area is surface clutter, which can be caused by waves or 

any other sonar interference at the surface of the water. Too much 

surface clutter can obscure your view of fish. You can turn down the 

Gain setting to reduce this surface clutter.
Between the bottom and the surface clutter, you may see suspended 

targets. By default, the targets appear as arches. 

  NOTE: Suspended target returns might not always appear 

as perfect arches, due to the speed, fish orientation, or other 

conditions. 

You can turn on the Fish Symbols setting if you want to see 

suspended targets indicated by fish shapes instead of arches.

 A dual beam transducer can transmit a narrow or a wide beam. The 

water area covered by the transmitted sound waves is determined by 

the transducer beam width and the water depth. The narrow beam 

provides crisp detail of what is under your boat, and is very helpful 

if you are fishing in deeper water where the beam covers more area 

(for example, at a depth of 30 feet, the narrow beam covers the area 

of about a 7-foot circle). 

The wide beam is more helpful in shallow water, because it gives 

you a much wider view of objects in the water, including areas 

beyond the sides of your boat. At a depth of 30 feet, the wide beam 

covers the area of approximately a 20-foot circle.