320B Blackbox Echosounder
Features
Features of the 320B Blackbox Echosounder include:
- Dual Frequency (3.5 KHz - 210 KHz) - Simultaneous Operation
- Windows Software Interface
- Connectability
Standard Features of all Knudsen 320 Series Echosounders include:
- Digital Signal Processing (DSP)
- Field Programmable Software Upgrade
- Easy Transducer Interface
Dual Frequency (3.5 KHz - 210 KHz) - Simultaneous Operation
The KEL 320B has an optional dual frequency configuration with built in digitizers on both
channels. It's four built in RS232 serial ports provide a standard interface to all modern
survey tools including GPS receivers, heave sensors and dataloggers. It also provides hands-off
operation with automatic phase & gain control.
Windows Software Interface
Echosounder Control and Data Display software for Windows® provided with the Knudsen 320B
Echosounder is used for real-time control of all operating parameters. Using the built in SCSI
port or one of the RS232 serial ports, the software provides full-function user interface plus
real-time display of the grayscale data. This user interface also includes a flexible data logging
facility which produces both ASCII files and/or binary image files.
Connectability
Four RS232 (or optional RS 422) serial ports are available on the connector panel for support of
legacy or general purpose interfaces. Drivers for most standard accessories (i.e. GPS receivers,
heave sensors etc.) are provided. More specialized interfaces to legacy shipboard systems can be
provided if required.
Standard Features
Digital Signal Processing (DSP)
The 320 echosounders do all signal processing digitally. There are many advantages to an
all-digital system, including the inherently higher performance and greater stability of
digital filters. The processing is performed in software which can be programmed to accommodate
any frequency, bandwidth, or pulse length, eliminating the need for multiple analogue hardware
filters.
Field Programmable Software Upgrades
KEL 320 Series Echosounders are unique in their use of in-circuit programmable flash program
memory for storage of all firmware including signal processing algorithms and communications
drivers. Echosounder firmware can be field upgraded with the latest revision provided via the
internet or on a disk from KEL. This firmware can be downloaded into the echosounder using the
survey computer. Users can thus benefit from the improvements and additions to the software
which are continually being developed.
Easy Transducer Interface
The Knudsen 320 Series Echosounders can be easily interfaced to most existing transducers,
saving the expense of new transducers and dry dock installation.