Airmar B75H – sonda zanurzeniowa z brązu 600W CHIRP (130–210 kHz) z elementem nachylonym (20°) + temperatura (8 pinów)

The Garmin Airmar B75H transducer is a 600 W CHIRP through-hull bronze transducer. It operates in the high-frequency band (130-210 kHz) and features a 20° tilted element. It provides depth and water temperature data via an 8-pin connector.

The Airmar B75H transducer operates on a CHIRP high-frequency band, ranging from 130 kHz to 210 kHz.

The B75H transducer is designed to measure water depth and water temperature.

The Airmar B75H transducer housing is made of bronze.

The Airmar B75H transducer comes with a 10-metre (33-foot) cable.

The beam width of the B75H transducer ranges from 15° to 9° across its high-frequency range (130–210 kHz).

Yes, the B75H transducer uses CHIRP technology. This technology provides superior target separation and improved resolution of seabed details compared to fixed-tone transducers.

The Garmin Airmar B75H transducer is designed to be compatible with Garmin systems featuring an 8-pin connector.

The bronze housing of the Airmar B75H depth sounder is recommended for fiberglass or wooden hulls. It must never be installed on a metal hull, as this could cause electrolytic corrosion.

The B75H transducer is a 20° tilted-element model. It is specifically designed to compensate for deadrise angles of hulls ranging from 16° to 24°, ensuring an acoustically vertical beam for optimal performance.

No, a metal enclosure such as the bronze B75H should never be installed on a vessel with a positive ground system. This is a precaution to prevent electrolytic corrosion.

When installing the transducer, it is imperative to wear safety glasses, a dust mask, and hearing protection to ensure your safety.

The size of the hole to drill depends on the hull type:

For a fiberglass or wooden hull, drill a 70 mm (2-13/16") diameter hole from the outside of the hull. For a cored fiberglass hull, a 70 mm (2-13/16") hole is required on the outside of the hull, and an 80 mm (3-1/8") hole on the inside of the hull.

The transducer must be installed in an area where water flows smoothly, with minimal bubbles and turbulence, especially at high speed. It must remain continuously submerged, and its beam must not be obstructed by the keel or propeller shaft. Avoid areas near water intakes or discharges, seams, fittings, or other hull irregularities that could disrupt water flow.

No, CHIRP transducers, such as the B75H, generate more heat than traditional transducers. It is critical to install the transducer in a cool, well-ventilated location, away from the engine compartment or other heat sources, to prevent overheating that could lead to failure.

Yes, applying water-based antifouling paint is mandatory in saltwater to prevent marine growth. Marine growth on the transducer can negatively affect sonar performance. Airmar certifies that applying the Foulfree coating to its transducers does not result in any performance loss.

The arrow on top of the transducer must point toward the keel or the centerline of the boat. This orientation is critical to align the internal element angle of the transducer with the hull deadrise angle.

No, the transducer must always operate in water. Using the depth sounder in air can cause overheating of the device, potentially leading to failure.

For the installation of the B75H transducer, it is recommended to use a high-quality marine sealant specifically designed for below-waterline use to ensure perfect and long-lasting watertightness.