Garmin 160C Manual Do Utilizador

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NDERSTANDING

 

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ONAR

The Fishfinder 160C is a fully automatic, color sonar unit that allows 

you to go out on the water and find fish without having to configure a 

lot of settings. However, you can customize each setting as you prefer.
If you have used a Fishfinder before, you might already know how 

to interpret the sonar information on the screen, so you can skip this 

section. If you have not used a Fishfinder before, you might want to 

learn a bit about sonar: what it is, how it works, and what you might 

see on the Fishfinder 160C screen. This manual provides a general 

understanding of those things that you need to know about sonar that 

can help you interpret the screen and find the fish.

During installation, you connect your Fishfinder 160C to a 

transducer. The transducer uses sound to determine information 

about what is in the water beneath your boat. Then the transducer 

sends the information to your Fishfinder to be shown on the screen 

for you to view and interpret.
The transducer sends sound waves down into the water in a cone 

shape, similar to a flashlight beam (covering a smaller circular area 

at the top and angling out to a larger circular area at the bottom). 

These sound waves reflect off of any object that they hit, and then 

the waves travel back up to the transducer. These objects could 

be fish, branches, the bottom, or any other object that has density 

that is different from the water. The transducer receives the sound 

wave information, and then sends the information to the Fishfinder. 

The Fishfinder shows the information on the screen for you to see 

and interpret. The type of transducer and settings that you choose 

determine how the information appears on the screen.

Experimentation and experience are the keys to successfully 

interpreting your Fishfinder screen. We recommend that you take 

your Fishfinder out on familiar water, and spend time learning to 

interpret what you see on the Fishfinder 160C screen.
Think of the Fishfinder screen as if you took a picture from the side 

of an aquarium in your home. You can see how deep a fish is in 

the water (how close it is to the top or bottom), but you cannot tell 

where the fish is located horizontally in the water (whether it is near 

the front or the back of the aquarium). Remember this when you are 

trying to locate exactly where something is in the water.
The strongest sonar returns appear on your screen as the most 

intense solid red. The weaker returns appear as less intense, less 

solid colors,with dark blue to black being the weakest.