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Single Channel CHIRP Sub-bottom Profiler

Sub-bottom profiling applications in diverse sediments in shallow water environments require compact tools as
well as multiple frequency bands to support diverse survey requirements. The HMS-621 CHIRPceiver LittTM and
transducer arrays fill this wide range of survey needs. The user selectable frequency bands supported by the
HMS-621 include standard LF (1KHz-10KHz), and HF (8KHz-23KHz). It can be easily configured for up to 50Khz
with a standard single channel user configurable transceiver. CW frequencies can also be programmed within the
respective band. The transducer and hydrophone arrays are configured to perform both the transmit and the
receive functions of the system.
The HMS-621 CHIRPceiver Litt uses a flexible Graphical User Interface connected via Ethernet that allows the user
to set CHIRP or CW modes of operation, Start and Stop frequencies, and Pulse Lengths and Power Level for the
output pulses. The receiver controls allow for Gain and Attenuation as well as Diagnostic modes. All sonar data is
logged in SEGY format using industry standard acquisition software.

 

FEATURES/BENEFITS
• CHIRP acoustic pulses in standard LF band (1KHz-10KHz), and HF
(8KHz-23KHz) bands provide bottom penetration through many
sediment types
• Flexible transducer array options for a variety of vessel configurations
• Industry Standard Ethernet Interface for Data and Control
• Universal input power supply operates from 85 to 240 VAC
• 24VDC Operation wih inverter (8-10 Hours with (2) 12V Batteries
• Single-Channel True 24-bit A/D Range
• Seabed Classification
• Industry standard SEGY output
• Compatible with software acquisition software(Hypack, Chesapeake,
SwanView, others)

 

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