Marschall Acoustics Instruments Pty Ltd

Marschall Acoustics Group
Marschall Acoustics®

Bespoke Geophysical & Audio Domain Solutions







Inventor of the dual differential PVDF hydrophone front-end with driven transducer calibration input.

Shipboard interface maintains signal fidelity under adverse circumstances.

Front panels allow for hydrophone array depth and condition monitoring.The Trout deckbox system consists of two units: Array Power Unit and Array Receiver Electronics Unit. The system includes independent array and deckbox electronics power supplies. Array power voltage and current are continuously indicated. Deckbox electronics can include depth indicators as shown here. Two gain settings matching popular acquisition system full-scale ranges are standard, as is MAI's unique driven array sensor calibration system.

Easy to connect to BNC outputs or optional multipin connector outputs.

The rear panels of the Trout deckboxes include fully fused power connections, the array connections, and the signal outputs. Standard outputs are easy hookup BNC jacks. Customer specified multi-pin connector outputs are available as an option.

Analog arrays are limited to 32 channels.  Digital telemetered arrays start at 64 channels and presently go up to 256 channels.A look at the interior of a 24 channel Trout Array Receiver Unit. Input and outputs are fully protected. Power supply decoupling is extensive. Each individual channel is trimmable for precision gain matching.

Front panel usually has depth transducer displays, calibration inputs, and gain controls.

An interior view of the front panel of the Array Receiver Unit for a 24 channel Trout&trade IV deckbox system.


An interior view of the 16 channel deckbox receiver.

An interior view of the Array Receiver Unit for a 16 channel Trout&trade IV deckbox system, shown here atop of its power supply. Each unit is one rack unit smaller than the 24 channel system.

Next, some mechanical highlights.