Airmar
M163
Single and Dual-Frequency
This version of Airmar’s M163 is available in two configurations. 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 kHz and 50 kHz and results in a very compact, dual-frequency transducer. The 75 kHz, M163 features an efficient highly-sensitive 19-element array. Its design is easier and less costly to install than magno-restrictive transducers requiring steel tanks. Both 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 that provide accurate depth measurements in both shallow and deep-water.
Applications
Shallow and deep-water survey
Commercial fishing vessels
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
Fairing vertically orients sound beams for stronger return echoes resulting in optimal sounder performance
Narrow beams and low sidelobes provide clear bottom detail
Matching transformer provides pure, resistive load
Stuffing tubes are available to form a watertight conduit for cable routing and are available in a variety of materials to match all hull types
Can be mounted on a towed body, directly to a wood and fiberglass hull, or as an in-hull in a glass hull for precise echosounding—even at speeds over 20 knots (23 MPH)
Streamlined shape minimizes drag
All mounting hardware included
Seamless, SEALCAST™, urethane housing for long life underwater
Options
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
Housing Material: Cast urethane
Cable Type: C44 Three shielded twisted pair (two 2-18 AWG and one 2-22 AWG) with foil and braided shield overall, black TPR jacket, 11 mm (7/16”) diameter
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
Fairing vertically orients sound beams for stronger return echoes resulting in optimal sounder performance
Narrow beams and low sidelobes provide clear bottom detail
Matching transformer provides pure, resistive load
Stuffing tubes are available to form a watertight conduit for cable routing and are available in a variety of materials to match all hull types
Can be mounted on a towed body, directly to a wood and fiberglass hull, or as an in-hull in a glass hull for precise echosounding—even at speeds over 20 knots (23 MPH)
Streamlined shape minimizes drag
All mounting hardware included
Seamless, SEALCAST™, urethane housing for long life underwater
Options
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
Housing Material: Cast urethane
Cable Type: C44 Three shielded twisted pair (two 2-18 AWG and one 2-22 AWG) with foil and braided shield overall, black TPR jacket, 11 mm (7/16”) diameter