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4. Fasten each wing bolt until the protector for the screw is firm against the mounting
panel.
5. Fasten each wing nut tightly to secure the unit.
1.4
Transducer
The performance of the fish finder depends on the transducer position. When select-
ing a mounting location, keep in mind following points.
• A place least affected by air bubbles should be selected since turbulence blocks the
sounding path.
• Select a place least influenced by engine noise.
• Install the transducer face parallel to the sea surface.
It is known that air bubbles are fewest at the place where the bow first falls and the
next wave raises, at usual cruising speed. In small, slow-speed boats, the position be-
tween 1/2 and 2/3 of the ship's length from the bow is usually a good place.
CAUTIO
CAUTION
• Do not cover the transducer with FRP resin.
The heat generated when the resin hardens may
damage the transducer.
• Do not install the transducer on the inner side
of the hull.
The signal strength is reduced and may affect the
accuracy of measurements.
Protector
FM fixing plate
Wing nut
Wing bolt
1. MOUNTING
1-7
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