Single Channel CHIRP Sub-bottom Profiler
HMS-621 CHIRPceiver Litt
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 Litt 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 such as Chesapeake SonarWiz.