Airmar P79 - Sonda de bany d’oli de plàstic 600W amb compensació d’angle de casc – (8 pins)

The Airmar P79 transducer operates on two distinct frequencies:

50 kHz: with a 45° beam, it reaches depths up to 305 meters (1000 feet). 200 kHz: with a 12° beam, it provides accurate readings up to 183 meters (600 feet).

The Garmin Airmar P79 transducer has a power rating of 600 W (RMS).

The Airmar P79 transducer is ideal for owners of small fiberglass monohull sailboats. Its in-hull installation (oil-filled) is particularly suited to trailerable boats or those frequently hauled out, as it has no protruding elements beneath the hull.

The Airmar P79 transducer is made of plastic.

The Airmar P79 transducer is equipped with a 7.6-meter (25-foot) cable.

No, the Garmin Airmar P79 transducer is designed for depth readings only.

Hull deadrise compensation is a feature that allows the transducer to adjust for the deadrise angle of your boat's hull. The Airmar P79 transducer can easily compensate for deadrise angles up to 22°, ensuring that the acoustic beam is always directed vertically toward the seabed for optimal depth reading accuracy.

No, the specified model is the standard P79. While a 'Smart™ Sensor' version exists (P79S), this product refers to the P79 model, which is a traditional depth transducer.

The Airmar P79 transducer features an 8-pin Garmin connector, making it compatible with Garmin devices equipped with a transducer port of this type.

The Airmar P79 transducer can compensate for a hull deadrise angle ranging from 2° to 22°, ensuring the acoustic beam remains vertically aligned for accurate readings.

No, the Airmar P79 transducer is an in-hull (bain d'huile) installation and does not require drilling the hull. The mounting housing is bonded directly to the inside of the hull.

A non-toxic antifreeze-based cooling liquid (propylene glycol) is used to ensure effective sound transmission through the fiberglass hull. Approximately 71 ml (2.4 fl. oz.) of this liquid is required.

Choose a location where:

The fiberglass is SOLID (no air bubbles or coring materials).The hull beneath the transducer will always be in contact with water.The water flow under the hull is smoothest, with minimal bubbles and turbulence.Far from interference sources (propellers, shafts, machinery, other depth sounders).The beam will not be blocked by the keel or propeller shafts.The drift angle does not exceed 22°.There is sufficient space inside the boat.For planing hulls, well aft, on or near the centerline, and well within the first strake.

Yes, several precautions must be observed:

Always wear safety glasses, a dust mask, and hearing protection.Always use the transducer in a liquid; operating it in air can cause overheating and failure.The fiberglass hull beneath the transducer must be SOLID, without foam or balsa.Do not install the transducer in an engine compartment or any hot area where the liquid temperature could exceed 60° C (140° F).Never pull, carry, or hold the transducer by its cable.Do not use epoxy adhesive as it is too brittle.Never use solvents, as they can damage the transducer's plastic parts.

You can test the location by performing a performance comparison:

Reference test: Connect the transducer to the fishfinder, submerge it completely on the side of the boat (e.g., attached to a pole) and observe the depth reading and performance.In-hull test: Clean the inside surface of the hull. You can place the transducer against the hull with bilge water to cover it, or use a plastic bag filled with water between the transducer and the hull, or coat the active face with a water-based lubricant.Compare the fishfinder's performance with the reference test. A good location will provide a stable reading similar to the reference. If the reading is erratic or absent, the location may be above an area with through-hull fittings.

If your fiberglass hull contains core material (coring) such as foam or balsa, the transducer will not be able to transmit sound effectively. In this case, you must remove the core material from the installation area and replace it with repair resin or epoxy to create a solid, massive hull section. A 100 mm (4 inch) hole saw and a mini disc sander may be required for this operation.

For a basic installation, you will need:

Safety glasses, dust mask, hearing protection.Adhesive tape, pole, detergent, mild solvent (alcohol).Angle grinder (to smooth the hull if necessary).Measuring tape, pencil, carpenter's square.Silicone sealant (e.g., GE® Silicone I or II).Screwdriver, petroleum jelly.Propylene glycol (non-toxic antifreeze/coolant) - 71 ml (2.4 fl. oz.).Level, grommet(s) (for certain installations).For an installation in a fiberglass hull with coring, additional tools such as an electric drill, a 100 mm (4 in) hole saw, a miniature angle grinder, and epoxy or repair resin will be required.