Airmar P79 Transducer (thu hull) installation

pvantienenpvantienen Member Posts: 19
Hey gang, another newbie question here. I have a 97 Rinker Captiva 232 CC and I am installing a Garmin GPS unit. It has a thu hull transducer (not a whole, but through the fiberglass). I am thinking the best location for the transducer is below the front of the engine. (the factory one is there). Because this is shooting through the hull the install manual says the following:

The fiberglass hull below the transducer must be solid. Since the

hull absorbs acoustic energy, transmitting through the hull

reduces the transducer’s performance. Fiberglass hulls are often

reinforced in places for added strength or to reduce weight. These

cored areas contain balsa wood or structural foam which are poor

sound conductors. Do not locate the transducer over coring


Is this true below the engine on my boat?

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