Single or Dual Frequency

Airmar’s M163 is available in three versions. The first packs a 28 kHz, 2 kW array in a compact, SEALCAST^™ housing. The second configuration uses nine ceramic elements that resonate at both 28 and 50 kHz and result in a very-compact, dual-frequency transducer. The 75 kHz, special-order version features an efficient, highly sensitive, 19-element array. All configurations have very high efficiency and sensitivity for their size, resulting in excellent deep-water performance. The 33 kHz, 200 kHz, and 210 kHz, dual-beam transducers have conical-beam patterns and minimal sidelobes for accurate depth measurements in both shallow and deep water. The M163’s design is easier and less costly to install than a magno-restrictive transducer requiring a steel tank.

Applications

• Shallow and deep-water survey
• Commercial fishing

Features

• Low ringing and low sidelobes at 28 kHz, 38 kHz, and 75 kHz allows fisherman to see bottom structure clearly and to easily discriminate between bottom structure and target fish
• Narrow beams and low sidelobes show clear bottom detail
• Matching transformer provides pure resistive load
• Stuffing tube available to form a watertight conduit for cable routing
• Can be mounted on a towed body
• Streamlined shape minimizes drag
• SEALCAST^™, seamless, urethane housing for long life underwater

Options

• Water-temperature sensor
• Impedance to customer specifications using matching transformer
• Available as special order unit with 75 kHz-G array

Specifications

• Weight: 4.4 kg (9.8 lb.)
• Acoustic Window: Urethane
• Cable Type: C44, three shielded twisted pairs (two 2-18 AWG and one 2-22 AWG) with foil and braided shield overall, black TPR jacket, 11 mm (7/16") diameter
• Includes: Mounting hardware