Edgetech 3200-XS User manual

EdgeTech
4 Little Brook Road
West Wareham, MA 02576
Tel: [phone]
Fax: [phone]
www.edgetech.com
3200-XS
Sub-Bottom Profiling System
User’s Manual
Document No. 990-0000026-1000, Rev. 2.3

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
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.
©Copyright 2009 by EdgeTech. All rights reserved.
Full SpectrumTM is a trademark of EdgeTech.
Microsoft®and Windows®are registered trademarks of Microsoft Corporation.
Kevlar®is a registered trademarks of the DuPont Company.
Intel®and Pentium®are registered trademarks of Intel Corporation.
Novagard G624®is a trademark of Novagard Solutions, Inc.

iii
Warning—Read This First!
All personnel involved with the installation, operation or maintenance of the equipment
described in this manual should read and understand the warnings and recommendations
provided below.
Static Sensitive Devices
This equipment contains devices that are extremely sensitive to static electrical charges.
Therefore extreme care should be taken when handling them as static electricity may be
present on the body and clothing. Normal handling precautions involve the use of
anti-static protection materials and grounding straps for personnel.
Radiation
This equipment generates, uses and can radiate radio frequency energy. Therefore if the
equipment is not installed properly, it may cause interference with radio communications.
The equipment has not been tested for compliance with the appropriate FCC rules
designed to provide reasonable protection against such interference when operated in a
commercial environment. Therefore when operating the equipment in a residential area,
the user may be required to take whatever measures are needed and incur any expenses
necessary to eliminate interference; it is the user's responsibility to verify that the system
complies with the applicable FCC emission limits.
High Voltages
High voltages are present in the tow vehicle, the power amplifier and the topside processor.
Always use caution when removing the electronics from these devices.
Improper Line Voltage
Operation with improper line voltage may cause serious damage to the equipment. Always
ensure that the proper line voltage is used.

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
Preface
We, the employees at EdgeTech, would like to thank you for purchasing a 3200-XS
Sub-Bottom Profiling System. At EdgeTech it is our policy to provide high quality, cost
effective products and support services that meet or exceed your requirements, 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. The
information in this manual will get you started. It tells you what you need to set up, to
operate and to maintain the 3200-XS Sub-Bottom Profiling System.
Purpose of this Manual
The purpose of this manual is to provide the user with information on the setup, operation,
care, and maintenance of the EdgeTech 3200-XS Sub-Bottom Profiling System. For
general information on sub-bottom profiling, refer to papers published in the Journal of the
Acoustical Society of America, Offshore Technology Conference, IEEE Journal of Oceanic
Engineering by L.R. LeBlanc and S.G. Schock. Although this manual encompasses the
latest operational features of the 3200-XS Sub-Bottom Profiling System, some features of
the system may be periodically upgraded. Therefore the information in this manual is
subject to change and should be used for reference only.
This manual is divided into the following four sections and two appendices:
Section 1: Overview. Provides some background information about EdgeTech,
discusses the advantages of EdgeTech’s Full Spectrum chirp technology, and
describes the main components of the 3200-XS Sub-Bottom Profiling System.
Section 2: Specifications. Lists the electrical, mechanical and environmental
specifications for the main components of the 3200-XS Sub-Bottom Profiling System.
Section 3: Setup and Test. Provides instructions on how to set up and test the
3200-XS Sub-Bottom Profiling System and how to deploy and tow the tow vehicle.
Section 4: Maintenance and Troubleshooting. Provides some maintenance
recommendations and instructions on how to disassemble and reassemble a tow
vehicle. Included also are some troubleshooting procedures and connector pinout and
wiring information.
Appendix A: Printer Connections. Lists many of the printers that can be used with
the 3200-XS Sub-Bottom Profiling System and provides the setup requirements and
general specifications for a few of these printers that will provide the best results.
Appendix B: Frequently Asked Questions. Provides some frequently asked
questions from EdgeTech customers about the 3200-XS Sub-Bottom Profiling System.

v
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 personal injury or death to
yourself or to others.
CAUTION!
Identifies a potential hazard that could be damaging to equipment or could
result in the loss of data.
NOTE: Recommendations or general information that is particular to the
material being presented or a referral to another part of this manual or to
another manual.
Liability
EdgeTech has made every effort to document in this manual the 3200-XS Sub-Bottom
Profiling System 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.

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
Warranty
All equipment manufactured by EdgeTech is warranted 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 or repairs
attempted thereon.
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.

vii
Software Service Agreement
EdgeTech provides software services free of charge for one year following the purchase of
an EdgeTech system. A Software Service Agreement (SSA), which is available for an
annual fee, covers these services after the first year. The services are listed below.
The SSA 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 that have purchased a system within a year or
have an existing SSA. Any reproduction of EdgeTech supplied software or file sharing is
strictly prohibited.
Software Updates and Enhancements
EdgeTech customers automatically receive regular new software releases with all
modifications and enhancements along with user's manual changes. 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
Software Performance Report
EdgeTech customers may submit reports using a Software Performance Report (SPR)
form. SPR forms are available from EdgeTech. This report may be related to a problem or
to an inquiry, or it may be a specific request for a software enhancement. EdgeTech will
attend to the SPR at a priority level appropriate to the seriousness of the problem and to
the availability of a work-around.

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
Software Telephone, Facsimile and E-mail Support
The SSA entitles EdgeTech customers 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
• Immediately attend to serious problems affecting operations
• Attempt to find an immediate work-around
Software Service Agreement Fee
The SSA covers one year and is renewable upon expiration. For the SSA annual fee,
please contact EdgeTech directly. For contact information refer to Customer Service on
page x.

ix
Returned Material Authorization
Prior to returning any equipment to EdgeTech a Returned Material Authorization (RMA)
number must be obtained. The RMA will help us identify your equipment when it arrives at
our receiving dock and track the equipment while it is at our facility. The material should be
shipped to the address provided in Customer Service on page x. Please refer to the RMA
number on all documents and correspondence as well.
All returned material must be shipped prepaid. Freight collect shipments will not be
accepted.
The following steps apply only to material being returned from outside the Continental
United States. Follow them carefully to prevent delays and additional costs.
1. All shipments must be accompanied by three copies of your proforma invoice, showing
the value of the material and the reason for its return, if the reason is for repair, it must
be clearly stated in order to come through customs faster and without duties being
charged. Whenever possible, please send copies of original export shipping
documents with the consignment.
2. If the value of the equipment is over $1000, the following Shipper's oath must be sent
with the invoice. This oath can be typed on the invoice, or on a separate letterhead.
"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 ______________________________
3. If there is more than one item per consignment, a packing list must accompany the
shipment. It is acceptable to combine the proforma invoice and packing list as long as
the contents of each carton are clearly numbered and identified on the invoice.
4. Small items can be shipped prepaid directly to EdgeTech by FedEx, DHL, UPS,
Airborne, etc.
5. If the equipment is the property of EdgeTech (formerly EG&G Marine Instruments
Division) please insure for full value.
6. Fax one invoice, packing list, and a copy of the airway bill to EdgeTech upon shipment.

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
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 continually improve these products. Therefore we encourage you to contact customer
service to offer any suggestions or to request technical support. They can be reached as
follows:
E-mail: [email protected]
Mail: 4 Little Brook Road
West Wareham, MA 02576
Telephone: [phone], Ext 712
Facsimile: [phone]
For more information please go to www.edgetech.com.

xi
Table of Contents
Warning—Read This First! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Static Sensitive Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
High Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Improper Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Warnings, Cautions and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Software Service Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Software Updates and Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Software Performance Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Software Telephone, Facsimile and E-mail Support . . . . . . . . . . . . . . . . . viii
Software Service Agreement Fee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Returned Material Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
SECTION 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Company Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Advantages of Full Spectrum Chirp Technology . . . . . . . . . . . . . . . 1-1
1.2.1 Separate Acoustic Projectors and Receivers . . . . . . . . . . . . . . . 1-2
1.2.2 High Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.3 High Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.4 High Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.5 Additional Processing Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.6 Gaussian Shaped Amplitude Spectrum Outgoing Pulse . . . . . . 1-3
1.2.7 Reduction of Side Lobes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

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3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
1.3 Full Spectrum Chirp Technology Applications . . . . . . . . . . . . . . . . . 1-4
1.4 Main System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.4.1 Deck Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.4.2 SB-424, SB-216S and SB-512i Tow Vehicles . . . . . . . . . . . . . . 1-7
1.4.3 75-Meter Kevlar Reinforced Tow Cable . . . . . . . . . . . . . . . . . . . 1-7
1.5 Tiger Board Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.5.1 Carrier Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.5.2 Acquisition Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.5.3 Sonar/IDE Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
SECTION 2: Specifications . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Deck Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Deck Unit General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 3200-XS Topside Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.3 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2 SB-424, SB-216S and SB-512i Tow Vehicles . . . . . . . . . . . . . . . . . 2-3
2.3 75-Meter Kevlar Reinforced Tow Cable . . . . . . . . . . . . . . . . . . . . . . 2-5
SECTION 3: Setup and Test . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2.1 Use of an Uninterruptable Power Supply . . . . . . . . . . . . . . . . . . 3-2
3.2.2 Selecting the Power Amplifier Input Power Voltage . . . . . . . . . . 3-2
3.2.3 Changing to a Non-US Power Plug . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 Navigation Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.4 Locating the Deck Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.5 Deck Unit Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.6 Deck Unit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.7 Connecting the System Components . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.7.1 Connecting and Attaching the 75-Meter Kevlar Reinforced
Tow Cable to the Tow Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.7.2 Connecting the Deck Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

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3.8 System Activation and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.8.1 Activating the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.8.2 Performing the Predeployment Checks . . . . . . . . . . . . . . . . . . 3-11
3.9 Tow Vehicle Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.9.1 Obtaining the Best Sonar Imagery When Towing . . . . . . . . . . 3-14
3.9.2 Conducting Sediment Classification Surveys When Towing . . 3-14
SECTION 4: Maintenance and Troubleshooting . . . . 4-1
4.1 Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.1.1 Cleaning the Air Filter in the 3200-XS Topside Processor . . . . . 4-1
4.1.2 Cleaning the Tow Vehicle and Tow Cable after Use . . . . . . . . . 4-1
4.1.3 Inspecting and Cleaning the Underwater Connectors . . . . . . . . 4-2
4.1.4 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2 Restoring the Operating System to the Hard Drive . . . . . . . . . . . . .4-2
4.3 Disassembling and Reassembling a Tow Vehicle . . . . . . . . . . . . . . 4-3
4.3.1 Disassembling a Tow Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.3.2 Reassembling the Tow Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.5 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.6 Wiring and Connector Pinout Drawings . . . . . . . . . . . . . . . . . . . . . 4-12
APPENDIX A: Printer Connections . . . . . . . . . . . . . A-1
A.1 EPC Model 1086 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
A.2 EPC Model HSP-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
A.3 Raytheon Model TDU-850 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
APPENDIX B: Frequently Asked Questions . . . . . . B-1

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List of Figures
Figure 1-1: Deck Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure 1-2: Tiger and Mother Boards inside 3200-XS Topside Processor . . . . . . . . . . . . . . . 1-6
Figure 1-3: 75-Meter Kevlar Reinforced Tow Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Figure 1-4: SB-424, SB-216S and SB-512i Tow Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Figure 1-5: Tiger Board Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Figure 3-1: Deck Unit Back Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Figure 3-2: Deck Unit Front Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Figure 3-3: Behind 3200-XS Topside Processor Access Panel . . . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 3-4: A 75-Meter Kevlar Reinforced Tow Cable Shown Connected and Attached
to an SB-216S Tow Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Figure 3-5: Recommended Method for Dressing and Strain Relieving the Tow Cable . . . . . 3-9
Figure 3-6: The DISCOVER 3200SB Main Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Figure 3-7: The Options Dialog Box, Sonar Control Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Figure 4-1: Retaining Ring and Locking Sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Figure 4-2: Retaining Ring and Locking Sleeve Removed . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Figure 4-3: SB-424, SB-216S and SB-512i Tow Vehicle Transducers, Hydrophones,
Transformers, Inductors, Spider Boxes, Spider Arrays, And Preamplifiers . . . . . 4-4
Figure 4-4: Removing the 7/16-Inch Bolts Securing the Teardrop Cover to the
Tow Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 4-5: Removing the Teardrop Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 4-6: Teardrop Cover Removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-7: Removing 7/16 and 1/2-Inch Bolts and Nuts Securing the Top Cover of
the Tow Vehicle Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-8: SEA CABLE Connector—Female, Face View . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Figure 4-9: Tow Vehicle Tow Cable Connector—Male, Face View . . . . . . . . . . . . . . . . . . . 4-11

xv
List of Tables
Table 2-1: Deck Unit General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Table 2-2: 3200-XS Topside Processor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-3: Power Amplifier Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Table 2-4: Tow Vehicle Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Table 2-5: 75-Meter Kevlar Reinforced Tow Cable Specifications . . . . . . . . . . . . . . . . . . . . 2-5
Table 3-1: AC Power Cord Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Table 4-1: System Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Table 4-2: SEA CABLE Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Table 4-3: Tow Vehicle Tow Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Table 4-4: List of Wiring and Connector Pinout Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Table A-1: Printer Setting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-2: EPC Model 1086 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Table A-3: EPC Model HSP-100 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Table A-4: Raytheon Model TDU-850 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . A-3

1-1
SECTION 1: Overview
The 3200-XS Sub-Bottom Profiling System is a high resolution wideband frequency
modulated (FM) sub-bottom profiler that uses EdgeTech’s proprietary Full Spectrum chirp
technology to generate cross sectional images of the seabed and collect digital normal
incidence reflection data over many frequency ranges. The 3200-XS transmits an FM pulse
(also called a "chirp pulse") that is linearly swept over a full spectrum frequency range. The
reflections measured by the system are displayed as shades of gray or color on a
computer monitor and may be printed on a continuous feed thermal printer. Data are stored
in real time onto a large capacity hard drive and can be archived to a DVD.
1.1 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 35 years. It has responded to
the needs of the scientific, Naval and offshore communities by providing equipment, such
as sub-bottom profilers, side scan sonar, acoustic releases, current meters, and positioning
systems that have become standards in the industry. Equally as significant is the
company's ability to anticipate and respond to future needs through an active research and
development program. Current efforts are focused on the application of cutting edge chirp,
DSP and acoustic technology.
1.2 Advantages of Full Spectrum Chirp Technology
EdgeTech's Full Spectrum chirp technology has several distinct advantages over
conventional sub-bottom profiling systems. These benefits include use of separate
acoustic projectors and receivers to enable simultaneous transmission and reception of
acoustic signals, high repeatability of the transmitted signals to enable sediment
classification, high signal-to-noise ratio (SNR) for improved acoustic imagery, high
resolution for measurement of fine sediment layering, additional processing gain for energy
efficiency, Gaussian shaped amplitude spectrum of the outgoing pulse to preserve
resolution with sediment penetration, and reduction of side lobes for minimal destructive
signal scattering caused by the sediment when profiling near the bottom.

1-2 SECTION 1: Overview
3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
1.2.1 Separate Acoustic Projectors and Receivers
The 3200-XS Sub-Bottom Profiling System uses acoustic projectors and acoustic receivers
mounted in a towed vehicle to transmit and receive acoustic FM pulse signals. The
projectors are wide band piston type transducers, and the receivers are hydrophone arrays
composed of lead zirconate titanate (PZT) crystals. The transducers are mounted in the
forward section of the tow vehicle, and the hydrophone arrays, which are designed for
profiling at ship speeds up to seven knots, are mounted aft. The use of separate
transmitting transducers and receiving hydrophone arrays preserves linearity and allows
the simultaneous transmission and reception of the acoustic signals. The transducers and
hydrophone arrays are mounted beneath acoustic baffles which minimize direct path, tow
vehicle and surface reflections. A preamplifier in the tow vehicle amplifies and drives the
received signals through a tow cable to the surface.
1.2.2 High Repeatability
The FM pulses are generated by a digital-to-analog (D/A) converter with a wide dynamic
range and a transmitter with linear components. Therefore the energy, amplitude and
phase characteristics of the acoustic pulses can be precisely controlled. This precision
produces high repeatability and signal definition which is required for sediment
classification. The frequency range of operation is determined by the acoustic
characteristics of the transmitter transducers and receiving hydrophone arrays mounted on
the tow vehicle. Each tow vehicle can transmit acoustic pulses with different center
frequencies and bandwidths. The selection of this frequency is made by the operator while
profiling to achieve the best imagery, and the tow vehicle is selected based on the
sub-bottom conditions at the survey site and the type of sub-bottom features that need to
be imaged. EdgeTech technical support can provide assistance in selecting the best tow
vehicle for your application.
1.2.3 High Signal-to-Noise Ratio
Full Spectrum chirp technology does not use a conventional matched filter—the correlation
filter that is widely used to compress FM signals—to process wide band signals. Rather it
uses proprietary amplitude and phase weighting functions for the transmitted pulse and a
pulse compression filter that maximizes the SNR of the acoustic images over a wide band
of operating frequencies. These functions provide a significant SNR improvement in the
acoustic image over other pulse and chirp sonars with band limited components that are
limited in dynamic range.

Advantages of Full Spectrum Chirp Technology 1-3
1.2.4 High Resolution
Signals received at the surface from the hydrophone arrays in the tow vehicle pass through
a software controlled programmable gain amplifier before being digitized with a 16-bit
analog-to-digital (A/D) converter at a sampling rate of 20, 25, 40, or 50 kHz The FM pulse is
then compressed using a digital compression filter. This correlation process is implemented
in real time with forward and inverse Fast Fourier Transforms. The compressed pulse has a
time duration approximately equal to the inverse of the bandwidth of the FM pulse which
results in a high temporal resolution. This high resolution enables the measurement of fine
layering in the sediment, an important factor in sediment classification because it provides
a more realistic picture of the true geologic variability of the sea floor and an accurate
determination of the depositional processes.
1.2.5 Additional Processing Gain
In addition to the resolution improvement, correlation processing achieves a signal
processing gain over the background noise. This gain is approximately ten times the log of
the time-bandwidth product. This improvement is due to the signal having a time duration
longer than the inverse of the bandwidth, thus increasing signal energy without increasing
the power of the outgoing pulse. To equal the typical performance of the full spectrum
sonar pulse, conventional pulse sonar would have to operate at a peak pulse power of
100 times greater than a full spectrum pulse with a time-bandwidth product of 100.
1.2.6 Gaussian Shaped Amplitude Spectrum Outgoing Pulse
Another important feature of Full Spectrum chirp technology is that the signal processing
optimizes the performance of the system. The sonar contains many components, each with
a unique dynamic range and linearity characteristic which are frequency dependent. In
addition to this characteristic, the amplitude spectrum of the outgoing pulse is chosen to be
approximately Gaussian in shape to limit the side lobe level and temporal resolution losses
due to attenuation. As a wavelet with a Gaussian shaped spectrum is attenuated by the
sediment, energy is lost but its bandwidth is nearly preserved. Therefore even after being
attenuated by sand, the acoustic pulse has approximately the same resolution as an
unattenuated pulse.
1.2.7 Reduction of Side Lobes
Use of Full Spectrum chirp technology reduces the side lobes in the effective transducer
aperture. The wide bandwidth of the sweep frequency has the effect of smearing the side
lobes of the transducer and thus achieving a beam pattern with virtually no side lobes. The
effective spatial beam width obtained after processing a full spectrum 2–10 kHz signal, for
example is 20 degrees measured at the -3db points.

1-4 SECTION 1: Overview
3200-XS Sub-Bottom Profiling System User’s Manual Doc. No. 990-0000026-1000, Rev. 2.3
1.3 Full Spectrum Chirp Technology Applications
Applications for the Full Spectrum Chirp Technology used in the 3200-XS Sub-Bottom
Profiling System are many and include the following:
•EEZ resource development
•Imaging fluidized mud to a resolution of 8 cm
•Sediment classification
•Buried pipeline and cable location and routing
•Dredging studies for inlets
•Scour/erosion surveys in rivers and streams
•Marine geotechnical surveys
•Bridge erosion surveys
•Hazardous waste target location
•Geological surveys
•Archeological surveys
•Hazard surveys
•Mining and dredging surveys
•Bridge and shoreline scour surveys
•Imaging biologics in water column
•Mapping clam populations
•Beach re-nourishment
•Military and offshore oil applications
•Full ocean depth sub-bottom imaging (hull mount systems)
•Environmental site investigations