Edgetech 2300 User manual

EdgeTech
4 Little Brook Road
West Wareham, MA 02576
Tel: [phone]
Fax: [phone]
www.EdgeTech.com
2300 COMBINED SONAR SYSTEM
USER HARDWARE MANUAL
019849_REV_B 12/16/2019

ii
2300 COMBINED SONAR SYSTEM 019849_REV_B
The information, figures, and specifications in this manual are proprietary and are issued in strict
confidence on condition that they not be copied, reprinted, or disclosed to a third party, either wholly or
in part, without the prior, written consent of EdgeTech. Any reproduction of EdgeTech supplied software
or file sharing is strictly prohibited.
EdgeTech© 2019. All rights reserved.
Microsoft Windows© is a registered trademark of Microsoft Corporation
SBG© is a registered trademark of SBG Systems

iii
ATTENTION – READ THIS FIRST!
Warnings, Cautions, and Notes
Where applicable, warnings, cautions, and notes are provided in this manual as follows:
WARNING!
Identifies a potential hazard that could cause injury or death.
CAUTION!
Identifies a potential hazard that could damage equipment or data.
NOTE: Recommendations or general information that is particular to the
material being presented.
All personnel involved with the installation, operation, or maintenance of the equipment described in this
manual should read and understand the warnings and cautions provided below.
CAUTION!
This equipment contains devices that are extremely sensitive to static
electricity. Therefore, extreme care should be taken when handling them.
Normal handling precautions involve the use of anti-static protection
materials and grounding straps for personnel.
WARNING!
High Voltage may be present in all parts of the system. Therefore, use
caution when the electronics are removed from their containers for
servicing.
CAUTION!
Operation with improper line voltage may cause serious damage to the
equipment. Always ensure that the proper line voltage is used.

iv
2300 COMBINED SONAR SYSTEM 019849_REV_B
HARDWARE VARIATIONS AND COMPATIBILITY
The 2300 Combined Sonar System contains both standard and proprietary hardware. At times, EdgeTech
may change the standard components due to their availability or performance improvements. Although
the component manufacturers—along with their models and styles—may change from unit to unit,
replacement parts will generally be interchangeable.
EdgeTech will make every effort to see that replacement components are interchangeable and use the
same software drivers (if applicable). At times, however, direct replacements may not exist. When this
happens, EdgeTech will provide the necessary drivers with the replacement part, if applicable.
EdgeTech may also change certain hardware per customer requirements. Therefore, portions of this
manual, such as parts lists and test features, are subject to change. These sections should be used for
reference only. When changes are made that affect system operation, they will be explicitly noted. Also,
some options and features may not be active in the customer’s unit at the time of delivery. Upgrades will
be made available when these features are implemented.
Contact EDGETECH CUSTOMER SERVICE with any questions relating to compatibility.

v
ABOUT THIS DOCUMENT
We, the employees at EdgeTech, would like to thank you for purchasing a 2300 Combined Sonar System.
At EdgeTech, it is our policy to provide high-quality, cost-effective products and support services that meet
or exceed your requirements. We also strive to deliver them on-time and to continuously look for ways
to improve them. We take pride in the products we manufacture and want you to be entirely satisfied
with your equipment.
Purpose of this Manual
The purpose of this manual is to provide the user with information on the setup and use of EdgeTech’s
2300 Combined Sonar System. Although this manual encompasses the latest operational features of the
2300 Combined Sonar System, some features may be periodically upgraded. Therefore, the information
in this manual is subject to change and should be used for reference only.
Liability
EdgeTech has made every effort to document the 2300 Combined Sonar System in this manual accurately
and completely. However, EdgeTech assumes no liability for errors or for any damages that result from
the use of this manual or the equipment it documents. EdgeTech reserves the right to upgrade features
of this equipment, and to make changes to this manual, without notice at any time.
Revision History
REV DESCRIPTION DATE APPROVAL
A Release to Customer 11/6/2019 DMD
B Updated Images, Bridle and Shipping Instructions 12/16/2019 DMD

vi
2300 COMBINED SONAR SYSTEM 019849_REV_B
WARRANTY STATEMENT
All equipment manufactured by EdgeTech is warrantied against defective components and workmanship
for a period of one year after shipment. Warranty repair will be done by EdgeTech free of charge.
Shipping costs are to be borne by the customer. Malfunction due to improper use is not covered in the
warranty, and EdgeTech disclaims any liability for consequential damage resulting from defects in the
performance of the equipment. No product is warranted as being fit for a particular purpose, and there is
no warranty of merchantability. This warranty applies only if:
i. The items are used solely under the operating conditions and in the manner recommended in
Seller's instruction manual, specifications, or other literature.
ii. The items have not been misused or abused in any manner, nor have repairs been attempted
thereon without the approval of EdgeTech Customer Service.
iii. Written notice of the failure within the warranty period is forwarded to Seller, and the directions
received for properly identifying items returned under warranty are followed.
iv. The return notice authorizes Seller to examine and disassemble returned products to the extent
Seller deems necessary to ascertain the cause for failure.
The warranties expressed herein are exclusive. There are no other warranties, either expressed or implied,
beyond those set forth herein, and Seller does not assume any other obligation or liability in connection
with the sale or use of said products. Any product or service repaired under this warranty shall be
warranted for the remaining portion of the original warranty period only.
Equipment not manufactured by EdgeTech is supported only to the extent of the original manufacturer's
warranties.
CAUTION! If your product is a portable topside, never attempt to ship it
in its Storm CaseTM alone. Shipping portable topsides without an exterior
shipping crate will void the warranty.

vii
SOFTWARE SERVICE OVERVIEW
EdgeTech provides software services free of charge. This software agreement does not address customer-
specified modifications or enhancements. These services may be ordered separately. Furthermore,
EdgeTech software upgrades are meant for the sole use of EdgeTech customers. Any reproduction of
EdgeTech-supplied software or file sharing is strictly prohibited.
Software Updates and Enhancements
EdgeTech customers can download new software releases with all modifications and enhancements from
the EdgeTech FTP site. Major software issues, should they occur, will be reported directly to the customer.
New software releases consist of the following:
•Software enhancements that are not on the price list
•Software fixes and changes
•Product integration
•Documentation updates to on-line help
•Tests for compatibility with other modules
Software patches consist of software that has undergone the following:
•Minor software enhancements
•Software fixes and changes
EdgeTech customers are entitled to contact EDGETECH CUSTOMER SERVICE by telephone, facsimile, or e-mail
to report a difficulty, to discuss a problem, or to receive advice on the best way to perform a task. When
contacted, EdgeTech Customer Service will do the following:
•Respond within 24 hours via Software Telephone, Facsimile, and E-mail Support
•Immediately attend to serious problems affecting operations
•Attempt to find an immediate workaround

viii
2300 COMBINED SONAR SYSTEM 019849_REV_B
RETURNED MATERIAL AUTHORIZATION
Prior to returning any equipment to EdgeTech, a Returned Material
Authorization (RMA) Number must be obtained from CUSTOMER SERVICE.
RMA Purpose
The RMA Number identifies returned equipment when it arrives at our receiving dock and enables tracking
while at our facility. Refer to the RMA number on all documentation and correspondences.
All returned materials must be shipped prepaid. Freight collect shipments will not be accepted. All
equipment should be adequately insured for shipping, but equipment belonging to EdgeTech must be
insured for full value.
If there is more than one item per consignment, include a packing with the shipment. An invoice can
double as a packing slip only when the contents are clearly numbered and identified on the invoice.
CAUTION! Never attempt to ship a Portable Topside in its Storm CaseTM
alone. Although rugged, these cases are not intended to be used as
shipping containers, and the delicate internal components could be
damaged. Shipping in this manner will void any warranties.
NOTE: All shipping charges shall be the responsibility of the customer,
unless under warranty, as EdgeTech will pay for return shipping.
NOTE: For International Shipments valued over $1000, the following
Shipper's oath must be sent with the invoice.
Shipper’s Oath:
"I, ______________________________, declare that the articles herein specified are the growth,
produce, or manufacture of the United States; that they were exported from the
United States from the port of _____________________, on or about _______________; that they
are returned without having been advanced in value or improved in condition by any
process of manufacture or any other means; and that no drawback, or allowance has
been paid or admitted hereof."
Signed ______________________________

ix
CUSTOMER SERVICE
Customer service personnel at EdgeTech are always eager to hear from users of our products. Your
feedback is welcome and is a valuable source of information which we use to improve these products.
Therefore, we encourage you to contact EdgeTech Customer Service to offer any suggestions or to request
technical support:
NOTE: Please have your system Model and Serial Number available when
contacting Customer Service.
E-mail: [e-mail]
Mail: 4 Little Brook Road
West Wareham, MA 02576
Telephone: [phone]
Facsimile: [phone]
24-Hour Emergency
Technical Support Line: [phone]
For more information, please go to WWW.EDGETECH.COM.

x
2300 COMBINED SONAR SYSTEM 019849_REV_B
COMPANY BACKGROUND
EdgeTech (formerly EG&G Marine Instruments) traces its history in Underwater Data Acquisition and
Processing back to 1966. EdgeTech has designed, developed, and manufactured products, instruments,
and systems — for the acquisition of underwater data, including marine, estuarine, and coastal
applications — for over 50 years.
EdgeTech responds to the needs of the Scientific, Naval, and Offshore communities by providing industry-
leading equipment — such as Sub-Bottom Profilers, Side Scan Sonar, Acoustic Releases, USBL Positioning
Systems, and Bathymetric Systems — that have become standards in the industry.
EdgeTech consistently anticipates and responds to future needs with an active Research and Development
Program. Current efforts are focused on adapting new cutting-edge acoustic technology.

xi
TABLE OF CONTENTS
ATTENTION – READ THIS FIRST! .........................................................................................................iii
HARDWARE VARIATIONS AND COMPATIBILITY..................................................................................iv
ABOUT THIS DOCUMENT....................................................................................................................v
Liability...................................................................................................................................................... v
Revision History ........................................................................................................................................ v
WARRANTY STATEMENT ...................................................................................................................vi
SOFTWARE SERVICE OVERVIEW........................................................................................................vii
RETURNED MATERIAL AUTHORIZATION ..........................................................................................viii
CUSTOMER SERVICE..........................................................................................................................ix
COMPANY BACKGROUND ..................................................................................................................x
TABLE OF CONTENTS.........................................................................................................................xi
LIST OF FIGURES.............................................................................................................................. xiv
LIST OF TABLES .............................................................................................................................. xvii
1.0 OVERVIEW.............................................................................................................................1-1
1.1 Key Features ..............................................................................................................................1-1
1.2 2300 Combined Sonar System Applications..............................................................................1-3
1.3 Main System Components.........................................................................................................1-4
1.3.1 Rack-Mounted Topside.........................................................................................................1-4
1.3.2 Tow and Test Cables .............................................................................................................1-4
1.3.3 2300 Towfish.........................................................................................................................1-4
1.4 Optional Equipment ..................................................................................................................1-6
1.4.1 MPES Bathymetry Sonar.......................................................................................................1-6
1.4.2 USBL Beacon .........................................................................................................................1-6
1.4.3 Magnetometer Interface ......................................................................................................1-7
2.0 SPECIFICATIONS.....................................................................................................................2-8
2.1 Towfish Specifications ...............................................................................................................2-8
2.2 Rack Mount Topside Specifications.........................................................................................2-10
2.2.1 Rackmount General Specifications.....................................................................................2-10
2.2.2 Rack Mount Topside Computer Specifications...................................................................2-10
2.2.3 Rack Mount Topside Starmux IV Specifications .................................................................2-11

xii
2300 COMBINED SONAR SYSTEM 019849_REV_B
2.3 Optional Cable Specifications ..................................................................................................2-11
2.3.1 Tyco Dataline A302799 Double-Armored Coaxial Tow Cable ............................................2-11
2.4 2300 Mechanical Drawings......................................................................................................2-12
2.4.1 Towfish Mechanical Drawings ............................................................................................2-12
2.4.2 Sonar Processor Electronics Bottle.....................................................................................2-13
2.4.3 Multiplexer Electronics Bottle ............................................................................................2-14
2.4.4 2300 Rackmount Drawing ..................................................................................................2-15
3.0 TECHNICAL DESCRIPTION .....................................................................................................3-16
3.1 Towfish Technical Description.................................................................................................3-16
3.1.1 System Connection Diagram...............................................................................................3-17
3.1.2 Multiplexer and Sonar Processor Endcap Diagrams...........................................................3-18
3.1.3 Cables..................................................................................................................................3-22
3.2 Rack Mount Topside Technical Description ............................................................................3-24
3.2.1 Starmux IV Controls, Indicators, and Connections .............................................................3-24
3.2.2 Computer Controls and Connections .................................................................................3-25
4.0 SYSTEM SETUP.....................................................................................................................4-28
4.1 Unpacking and Inspecting........................................................................................................4-28
4.2 Towfish Bridle Adjustments for Towing, Movement, and Transport......................................4-29
4.2.1 Adjusting Bridle Strut Position for Towing Movement and Transport. ..............................4-29
4.2.2 Configuring the 2300 for Shipping and Transport ..............................................................4-31
4.3 Power Requirements ...............................................................................................................4-33
4.3.1 Use of an Uninterrupted Power Supply..............................................................................4-33
4.3.2 Changing to a Non-US Power Plug......................................................................................4-34
4.4 Navigation Interface ................................................................................................................4-34
4.5 Topside Processor Placement..................................................................................................4-34
4.6 IP Address Settings ..................................................................................................................4-35
4.7 Connecting the System Components ......................................................................................4-35
4.7.1 Connecting the Starmux IV to a Computer.........................................................................4-35
4.7.2 Connecting and Attaching the Tow Cable to the Towfish ..................................................4-36
4.7.3 Connecting the Tow Cable to the Starmux IV.....................................................................4-37
4.7.4 Connecting An Optional Magnetometer ............................................................................4-37
5.0 ACTIVATION, TEST, AND DEPLOYMENT.................................................................................5-38

xiii
5.1 Activating a 2300-Rack Mount System....................................................................................5-38
5.2 Performing System Pre-Deployment Testing ..........................................................................5-40
5.2.1 Testing the Sonar Processor ...............................................................................................5-40
5.2.2 Performing Side-Scan Pre-Deployment Checks..................................................................5-41
5.2.3 Performing Sub Bottom Pre-Deployment Checks ..............................................................5-44
5.3 Towfish Deployment................................................................................................................5-46
5.4 Towfish Layback Charts ...........................................................................................................5-48
5.4.1 Cable A302799 Layback Charts:..........................................................................................5-49
5.5 Towfish Recovery.....................................................................................................................5-52
6.0 MAINTENANCE ....................................................................................................................6-54
6.1 Cleaning and Inspecting the Towfish After Use.......................................................................6-54
6.2 Tail Fin Removal and Installation.............................................................................................6-54
6.2.1 Tail fin Removal ..................................................................................................................6-54
6.2.2 Tail Fin Installation..............................................................................................................6-57
6.3 Opening the Towfish................................................................................................................6-58
6.4 Electronics Bottle Installation and Removal............................................................................6-59
6.4.1 Removing Vertically Mounted Sub-Bottom Transducer.....................................................6-60
6.4.2 Installing Sub-Bottom Transducers.....................................................................................6-61
6.4.3 Removing Horizontally Mounted Electronic Bottles ..........................................................6-64
6.4.4 Installing Horizontally Mounted Electronic Bottles............................................................6-66
6.5 Towfish Weight Adjustment ....................................................................................................6-68
7.0 TROUBLESHOOTING.............................................................................................................7-70
7.1 Towfish Troubleshooting Guide ..............................................................................................7-70
7.1.1 Towfish................................................................................................................................7-71
7.1.1.1 No Sonar Data.............................................................................................................7-71
7.1.1.2 Reported Errors ..........................................................................................................7-71
7.2 Starmux IV Troubleshooting....................................................................................................7-72
7.3 Computer System Restoration ................................................................................................7-73
8.0 KIts:.....................................................................................................................................8-75
8.1 AUV/ROV Mounting Kit ...........................................................................................................8-75

xiv
2300 COMBINED SONAR SYSTEM 019849_REV_B
LIST OF FIGURES
Figure 1-1: 2300 Towfish- Top-down internal view...................................................................................1-1
Figure 1-2: 850 kHz Side Scan Imagery of Machen Shipwreck ..................................................................1-2
Figure 1-3: 4 x 1-10 kHz Sub-Bottom Imagery ...........................................................................................1-2
Figure 1-4: EdgeTech Discover Bathymetry...............................................................................................1-3
Figure 1-5: 2300 Rackmount......................................................................................................................1-4
Figure 1-6: Test Cable ................................................................................................................................1-4
Figure 1-7: 2300 Towfish Sideview ............................................................................................................1-5
Figure 1-8: 2300 Top-Forward View ..........................................................................................................1-6
Figure 1-9: 2300 Top-Aft View ...................................................................................................................1-6
Figure 1-10: 2300 Towfish Magnetometer Shackle...................................................................................1-7
Figure 2-1: 2300 Towfish ICD ...................................................................................................................2-12
Figure 2-2: Sonar Processor Bottle ICD....................................................................................................2-13
Figure 2-3: 2300 Multiplexer ICD .............................................................................................................2-14
Figure 2-4: 2300 Rack Mount Drawing ....................................................................................................2-15
Figure 3-1: 2300 Towfish Top-Down Internal View with Component Callouts .......................................3-16
Figure 3-2: 2300 Topside System Connection Diagram ...........................................................................3-17
Figure 3-3: 2300 Subsea Hardware Configuration...................................................................................3-18
Figure 3-4: Non-Bathymetric Sonar Processing Endcap Drawing ............................................................3-19
Figure 3-5: Bathymetric Sonar Processor Endcap Drawing .....................................................................3-20
Figure 3-6: 2300 Subsea Multiplexer Endcap Drawing............................................................................3-21
Figure 3-7: MCIL6F to MCIL6M Extension Cable......................................................................................3-22
Figure 3-8: Test Cable ..............................................................................................................................3-23
Figure 3-9: Labeled Front Panels of 2300 Rackmount .............................................................................3-26
Figure 3-10: Labeled Rear Picture of 2300 Rackmount ...........................................................................3-27
Figure 4-1: Towfish Bridle ........................................................................................................................4-29
Figure 4-2: Support Strut .........................................................................................................................4-29
Figure 4-3: Bridle Support Strut Adjustment ...........................................................................................4-30
Figure 4-4: 90⁰Bridle Position .................................................................................................................4-30
Figure 4-5: Bridle Winch or Crane Movement ~ 80⁰Position..................................................................4-31

xv
Figure 4-6: Bridle at ~ 80⁰Position For Crating and Transport................................................................4-32
Figure 4-7: 2x4 Installation in Crating to Restrict Verticle and Lateral Movement .................................4-33
Figure 4-8: Starmux IV and Computer Connected By Ethernet Cable .....................................................4-36
Figure 4-9: Starmux IV Sea Cable Connector ...........................................................................................4-37
Figure 5-1: WebRelay Control Interface ..................................................................................................5-39
Figure 5-2: Command Prompt Ping Test..................................................................................................5-40
Figure 5-3: Sonar.exe Successful Self-Test...............................................................................................5-41
Figure 5-4: Status Indicator Bar- NET:ON.................................................................................................5-41
Figure 5-5: Sidescan Control Tab in Discover...........................................................................................5-42
Figure 5-6: Side Scan Control Tab Frequency, Duration, and Signal Meter Datablocks..........................5-42
Figure 5-7: Disk Control Tab, Record File Text Box, Browse File Button, and Start Recording Button
Locations..................................................................................................................................................5-43
Figure 5-8: External Device Controls- Zero Pressor Sensor Button .........................................................5-43
Figure 5-9: Disk Control Tab: Stop Recording Button, Browse for Recording and Play Button...............5-43
Figure 5-10: Discover 2300 Sub-Bottom Display Window.......................................................................5-44
Figure 5-11: The Sub-Bottom Control Tab...............................................................................................5-45
Figure 5-12: Sub-Bottom Control Tab-Pulse and Transmit Level Called Out...........................................5-45
Figure 5-13: Sub-Bottom Shortcut Toolbar- Range Text Field and Normalize Gain Button Called Out ..5-45
Figure 5-14: Tap Test................................................................................................................................5-46
Figure 5-15: Bottom Track Tab ................................................................................................................5-48
Figure 5-16: 2300 Being Recovered .........................................................................................................5-52
Figure 6-1: View of Inner-Fin Bolt Mounting (Hex Nuts, Washers) .........................................................6-55
Figure 6-2: Outer-Fin Bolt Mounting (Hex-head Bolts)............................................................................6-55
Figure 6-3: Unthreading Tail Wing Assembly with Hex Screwdriver and Wrench...................................6-56
Figure 6-4: Tail Fin Alignment (Tail Fin and Model Number out) ............................................................6-57
Figure 6-5: Inner Tail Bolt Positions (future versions will be fixed and not adjustable)..........................6-58
Figure 6-6: Top Cover Hex Screw Removal ..............................................................................................6-59
Figure 6-7: Mounted Sub-Bottom Transducer secured by Mounting Brackets and Worm Clamp .........6-60
Figure 6-8: Vertical Mounting Brackets Proper Alignment......................................................................6-62
Figure 6-9: Worm Clamp Secured Around Mounting Brackets and Transducer .....................................6-63
Figure 6-10: Correctly Installed Sub-Bottom Transducer ........................................................................6-63

xvi
2300 COMBINED SONAR SYSTEM 019849_REV_B
Figure 6-11: Aft Horizontally Installed Electronics Bottle........................................................................6-65
Figure 6-12: Detached Mounting Ring.....................................................................................................6-65
Figure 6-13: Aft Mounting Ring Bolt Hole Locations ...............................................................................6-67
Figure 6-14: Mounted Aft Mounting Ring................................................................................................6-67
Figure 6-15: Forward Weight Assembly...................................................................................................6-68

xvii
LIST OF TABLES
Table 2-1: Towfish Specifications...............................................................................................................2-9
Table 2-2: MPES Bathymetry Options Specifications.................................................................................2-9
Table 2-3: 2300 Rackmount General Specifications ................................................................................2-10
Table 2-4: Topside Computer Specifications ...........................................................................................2-10
Table 2-5 Topside Starmux IV Specifications ...........................................................................................2-11
Table 2-6: Optional Tyco Dataline A302799 Double-Armored Tow Cable Specifications .......................2-11
Table 3-1: Starmux IV, Indicators, Connections.......................................................................................3-24
Table 3-2: Computer Controls and Connections......................................................................................3-25
Table 4-1: AC Power Cord Wiring ............................................................................................................4-34
Table 5-1: 2300 with QTY 4 DW 106 Transducers and 500 Meters of Cable A302799 Paid Out.............5-49
Table 5-2: 2300 with QTY 4 DW 106 Transducers and 1,000 Meters of Cable A302799 Paid Out..........5-49
Table 5-3: 2300 with QTY 4 DW 106 Transducers and 2,000 Meters of Cable A302799 Paid Out..........5-50
Table 5-4: 2300 with QTY 4 DW 106 Transducers and 3,000 Meters of Cable A302799 Paid Out..........5-50
Table 5-5: 2300 with QTY 4 DW 106 Transducers and 4,000 Meters of Cable A302799 Paid Out..........5-51
Table 5-6: 2300 with QTY 4 DW 106 Transducers and 4,500 Meters of Cable A302799 Paid Out..........5-51
Table 7-1: Reported Errors.......................................................................................................................7-71
Table 7-2: Starmux IV Troubleshooting Table..........................................................................................7-73
Table 8-1: 0022261 AUV/ROV Mounting Kit............................................................................................8-75

1-1
1.0 OVERVIEW
The 2300 system combines EdgeTech's highly successful line of side-scan sonar, sub-bottom profiler, and
MPES bathymetry technologies into one fully-integrated system. The tri-frequency side scan system
provides surveyors a choice of operating any two of three frequencies simultaneously using EdgeTech’s
proven Full Spectrum™CHIRP technology to provide crisp, high-resolution imagery. The 2300 sub-bottom
system is designed to incorporate up to four deep-penetrating low-frequency DW-106 (1-10kHz)
transducers coupled with a PVDF hydrophone receiver that provides better sub-bottom receive sensitivity
and directivity. EdgeTech’s MPES Bathymetry is available as an option. The Multi-Phase Echo Sounder
(MPES) produces real-time, high-resolution, three-dimensional (3D) maps of the seafloor while providing
co-registered simultaneous dual-frequency side-scan imagery. Additional features include a telemetry
multiplexer, remote head USBL beacon, built-in heading, pitch and roll sensors, and a rear magnetometer
shackle mount.
1.1 Key Features
The 2300 is a fully integrated deep-water capable side-scan and sub-bottom system that supports many
options.
Figure 1-1: 2300 Towfish- Top-down internal view
Tri-Frequency Side Scan Sonar:A standard 2300 side-scan configuration is either a 120/410/850 kHz or
230/540/850 kHz that can operate any two frequencies simultaneously. The system frequency choice can
be reconfigured instantly, allowing the operator to react and optimize range and resolutions to changing
survey conditions and to use the system in multiple roles.
Sub-Bottom
Transducers
Multiplexer
Sonar Processor
Side-Scan Transducer Array
Side-Scan Transducer Array

1-2
2300 COMBINED SONAR SYSTEM 019849_REV_B
Figure 1-2: 850 kHz Side Scan Imagery of Machen Shipwreck
Sub-Bottom Sonar: The 2300 system has enhanced sub-bottom profiling capabilities with multiple low-
frequency transducers and a PVDF receiver. The system mounts multiple transmit transducers in a 4 x 1-
10 kHz configuration that provides improved directionality and the ability to focus power where needed.
200-Watt amplifiers drive each transducer and utilize wideband, Gaussian, and optional quadratic pulses
that emphasize the lower end of the frequency spectrum over a wideband pulse. The PVDF receive panel
provides 2D directionality and improved sensitivity over simple line arrays.
Figure 1-3: 4 x 1-10 kHz Sub-Bottom Imagery
Swath Bathymetry Option: MPES bathymetry is available on the platform. The Multi-Phase Echo Sounder
(MPES) produces real-time, high-resolution, three-dimensional (3D) maps of the seafloor while providing
co-registered simultaneous dual-frequency side scan imagery.

1-3
Figure 1-4: EdgeTech Discover Bathymetry
Telemetry Multiplexer: The 2300 allows the user to connect a variety of devices to an independent
telemetry multiplexer that acts as a central subsea power and interface hub. All devices, including the
sonar processor, connect to the multiplexer for power and data connections to the topside Starmux IV.
Depending on the interface requirement, data can be broadcast on the network (Navigation) or serially
provided at one of the Starmux IV rear panel RS232 connectors.
Deep Water Operations: The system is rugged and rated to a depth of 2,000 meters. An optional Edgetech
armored cable provides digital Telemetry over a single coaxial type cable up to 6,000 meters in total
length.
Additional Payload Options: The 2300 towfish is sized and configured to support additional payload
options such as magnetometer and USBL beacon. Contact EdgeTech Sales for options and integration
details.
Built-In Heading, Pitch, and Roll Sensor: The towfish comes standard with an SBG compass that provides
heading, pitch, and roll to the system. These values are displayed and updated in real-time in Discover.
1.2 2300 Combined Sonar System Applications
Applications for the 2300 Combined Sonar System are many, including:
•Archeological Surveys
•Geological/Geophysical Surveys
•Sediment Classification
•Cable and Pipeline Surveys
•Pre/Post Dredging Surveys
•Scour/Erosion Investigation