Your boat's propulsion system generates turbulence when the boat is moving, and turbulence can affect your thru-hull transducer's performance. These placement recommendations help keep your thru-hull transducer away from turbulence from the propulsion system.

In general, optimal placement for your thru-hull transducer is in the bilge near the keel and transom where the water under the hull is smoothest while the boat is moving.

• On outboard and sterndrive vessels , you should mount the transducer in front of and close to the engine or engines.

• On inboard vessels , you should mount the transducer in front of and far away from the engine propeller and shaft.

• On single-drive boats, you should not mount the transducer in the path of the propeller.

• On twin-drive boats, you should mount the transducer between the drives, if possible.