Garmin Fishfinder 240 Blue Instrukcja obsługi - Strona 9

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Garmin Fishfinder 240 Blue Instrukcja obsługi

Transducers

The transducer acts as the eyes and ears of your new sonar. Proper

transducer selection and installation are critical to the operation of your

unit.

The transducer transmits sound waves toward the bottom in a cone

shape. The larger the cone angle the larger the coverage area at a given

depth. While it is good to see as large of an area as possible, it is best to

select a transducer that suits the water that you are on.

A wide cone angle transducer works best in shallow water. The wide

cone angle provides a large coverage area, but at a decreased bottom

resolution. In deeper water this can result in a large dead zone where

fish cannot be seen.

A narrow cone angle transducer is better suited to deep-water installa-

tions. The narrow cone angle provides a smaller viewing area (compared

to a wide cone angle transducer at the same depth) with improved bottom

resolution and a smaller dead zone.

Included in the Optional Package is a 20° cone angle, temperature sens-

ing, transom mount transducer. This transducer provides good all-around

performance. A variety of optional transducers are available from your

local dealer or GARMIN.

Installation

Selecting a Transducer

Wide cone angle

Narrow cone angle

dead zone

fish not seen