Mounting The Fairing Block; Fig. 2-3 Best Transducer Locations - Raymarine L750 Operating Handbook

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• Choose a location where the transducer will always be covered by
water.
• The beam from the transducer should not be blocked by a keel or
prop shaft.
• Choose a location where you can easily reach the transducer from
inside the vessel. This will allow you to make adjustments and
periodic inspections. Allow at least 6" (152 mm) of headroom above
the transducer.
• The "deadrise" is the angle or slope of the bottom of the hull in the
side-to-side direction. Try to find a mounting location with the smallest
deadrise angle.

Fig. 2-3 Best Transducer Locations

Mounting the Fairing Block

Follow these instructions if you are installing the thru-hull transducer.
The transducer should aim straight down (within 10°). If the bottom of
the hull is sloped more than this, a fairing block may be necessary to
L750 Fishfinder: Installation and Operation Handbook
Sailboats
Best locations for
thru hull
transducers
Tri-hulls
Planing hulls