Simrad NX45 Specifications download pdf (Page 38)

Simrad NX40/45 Installation and Operation Manual38

CAUTION

DANGER

WARNING

Planing hulls at speed

produce air bubbles and

turbulent water that

bombard the transducer.

The resulting ultrasonic

noise may be picked up

by the transducer and

obscure the real echoes.

Frequency and cone width

Water Depth

ft/m

Cone width at 50

kHz

Cone width at 200

kHz

45˚ cone 11˚ cone

Clarity of water. Particles or air in the water reduce •

the strength of the echo.

Composition or density of the object or bottom.•

Bottom types

Mud, weed and sandy bottoms tend to weaken and

scatter the echosounder pulse, resulting in a weak echo.

Hard, rocky or coral bottoms reect the pulse, resulting

in a strong echo.

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Simrad NX45 Specifications Page 38