Airmar
M191
Dual-Frequency
The M191 features dual-frequency capability in a compact, lightweight housing. These frequencies have low sidelobes, which focus more energy on target and provide good definition in hard-bottom areas. The low-ringing (Q) versions give clear, bottom detail and are especially effective at surveying in extremely, shallow-water.
Applications
River, harbor, or estuary survey
Features
Stainless-steel, threaded stem easily attaches to portable-mounting apparatus
Can be mounted on a towed body
Not suitable for thru-hull mounting
Internal transformer provides correct impedance match to echosounder and allows use of longer cable
Seamless, SEALCAST™, urethane housing for long life underwater
Options
Impedance to customer’s specifications using matching transformer
Single-frequency transducers available
Specifications
Weight: Varies depending on configuration (Call for weight)
Acoustic Window: Urethane
Stem Thread: 1/2”-14 NPS
Cable Type: C-44 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
Stainless-steel, threaded stem easily attaches to portable-mounting apparatus
Can be mounted on a towed body
Not suitable for thru-hull mounting
Internal transformer provides correct impedance match to echosounder and allows use of longer cable
Seamless, SEALCAST™, urethane housing for long life underwater
Options
Impedance to customer’s specifications using matching transformer
Single-frequency transducers available
Specifications
Weight: Varies depending on configuration (Call for weight)
Acoustic Window: Urethane
Stem Thread: 1/2”-14 NPS
Cable Type: C-44 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