Lowrance electronic X515C DF Benutzerhandbuch

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WARNING: 
Do not remove any material from your inner hull unless 
you know the hull's composition. Careless grinding or 
cutting on your hull can result in damage that could 
sink your boat. Contact your boat dealer or manufac-
turer to confirm your hull specifications. 
 
 
Epoxy the transducer to a solid portion of the hull. 
For example, some (but not all) manufacturers use a layer of fiberglass, 
then a core of balsa wood, finishing with an outer layer of fiberglass. 
Removing the inner layer of fiberglass and the balsa wood core exposes 
the outer layer of fiberglass. The transducer can then be epoxied di-
rectly to the outer layer of fiberglass. After the epoxy cures for 24 
hours, fill the remaining space with polyester resin. When the job is 
finished, the hull is watertight and structurally sound. Remember, the 
sonar signal must pass through solid fiberglass. Any air bubbles in the 
fiberglass or the epoxy will reduce or eliminate the sonar signals. 
Testing Determines Best Location 
Ideally, the shoot-thru transducer should be installed as close to the 
transom as possible, close to the centerline. This will give you the best 
performance during high speed maneuvers. 
 
 
Shoot-thru-hull transducer locations for 
high speed or trolling speed operation. 
Transducer location
(trolling speed) 
Transducer location
(high speed) 
Fill with resin 
Inner hull
Epoxy to hull first
Outer hull
Flotation material 
Fill with