Geophysical Survey Systems 3101A 3101A Antenna User Manual GENERAL FAXFORM

Geophysical Survey Systems, Inc. 3101A Antenna GENERAL FAXFORM

Users Manual

3101A Antenna System Settings and User Notes The World Leader in Subsurface Imaging™ Geophysical Survey Systems, Inc. Tel 603.893.1109 • Fax 603.889.3984 sales@geophysical.com www.geophysical.com August, 2010
Copyright© 2001, 2010 Geophysical Survey Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form Published by Geophysical Survey Systems, Inc. 12 Industrial Way Drive Salem, New Hampshire 03079 Printed in the United States GSSI, RADAN, and SIR are registered trademarks of Geophysical Survey Systems, Inc.
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Limited Warranty, Limitations Of Liability And Restrictions Geophysical Survey Systems, Inc. hereinafter referred to as GSSI, warrants that for a period of 24 months from the delivery date to the original purchaser this product will be free from defects in materials and workmanship. EXCEPT FOR THE FOREGOING LIMITED WARRANTY, GSSI DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. GSSI's obligation is limited to repairing or replacing parts or equipment which are returned to GSSI, transportation and insurance pre-paid, without alteration or further damage, and which in GSSI's judgment, were defective or became defective during normal use. GSSI ASSUMES NO LIABILITY FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR INJURIES CAUSED BY PROPER OR IMPROPER OPERATION OF ITS EQUIPMENT, WHETHER OR NOT DEFECTIVE. Before returning any equipment to GSSI, a Return Material Authorization (RMA) number must be obtained. Please call the GSSI Customer Service Manager who will assign an RMA number. Be sure to have the serial number of the unit available
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes FCC Notice (for U.S. Customers): This device complies with part 15 of the FCC Rules: Operation is subject to the following conditions: 1. This device many not cause harmful interference, and 2. This device must accept any interference received, Including interference that may cause undesired operation Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Operation of this device is restricted to law enforcement, fire and rescue officials, scientific research institutes, commercial mining companies, and construction companies. Operation by any other party is a violation of 47 U.S.C. § 301 and could subject the operator to serious legal penalties. Coordination Requirements (a) UWB imaging systems require coordination through the FCC before the equipment may be used. The operator shall comply with any constraints on equipment usage resulting from this coordination. (b) The users of UWB imaging devices shall supply detailed operational areas to the FCC Office of Engineering and Technology who shall coordinate this information with the Federal Government through the National Telecommunications and Information Administration. The information provided by the UWB operator shall include the name, address and other pertinent contact information of the user, the desired geographical area of operation, and the FCC ID number and other nomenclature of the UWB device. This material shall be submitted to the following address: Frequency Coordination Branch, OET Federal Communications Commission 445 12th Street, SW Washington, D.C. 20554 ATTN: UWB Coordination (d) Users of authorized, coordinated UWB systems may transfer them to other qualified users and to different locations upon coordination of change of ownership or location to the FCC and coordination with existing authorized operations. (e) The NTIA/FCC coordination report shall include any needed constraints that apply to day-to-day operations. Such constraints could specify prohibited areas of operations or areas located near authorized radio stations for which additional coordination is required before operation of the UWB equipment. If additional local coordination is required, a local coordination contact will be provided. (f) The coordination of routine UWB operations shall not take longer than 15 business days from the receipt of the coordination request by NTIA. Special temporary operations may be handled with an expedited turn-around time when circumstances warrant. The operation of UWB systems in emergency situations involving the safety of life or property may occur without coordination provided a notification procedure, similar to that contained in CFR47 Section 2.405(a)-(e), is followed by the UWB equipment user. Notice: Use of this device as a wall imaging system is prohibited by FCC regulations.
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Canadian Requirements for RSS-220 Canadian Requirements of RSS-220 for Ground Antennas This Ground Penetrating Radar Device shall be operated only when in contact with or within 1 m of the ground. This Ground Penetrating Radar Device shall be operated only by law enforcement agencies, scientific research institutes, commercial mining companies, construction companies, and emergency rescue or firefighting organizations. Cet appareil de radar de sol (ou géoradar) ne doit être utilisé qu’en contact avec le sol ou à 1 m maximum au dessus du sol. Cet appareil de radar de sol ne doit être utilisé que par les forces de l’ordre, les instituts de recherche scientifiques, les sociétés minières, les sociétés de construction, et les organisations de secours d’urgence ou de combat du feu. Canadian Requirements of RSS-220 for Hand-held Antennas This In-wall Radar Imaging Device shall be operated where the device is directed at the wall and in contact with or within 20 cm of the wall surface. This In-wall Radar Imaging Device shall be operated only by law enforcement agencies, scientific research institutes, commercial mining companies, construction companies, and emergency rescue or firefighting organizations. Cet appareil de radar de structure (murs, poutres, dalles…) ne doit être utilisé qu’en contact avec la structure ou à 20 cm maximum décollé de cette structure. scientifiques, les sociétés minières, les sociétés de construction, et les organisations de secours d’urgence ou de combat du feu. Canadian Requirements of RSS-220 for Search and Rescue Antennas This Through-wall Radar Imaging Device shall be operated only by law enforcement agencies or emergency rescue or firefighting organizations that are under a local, provincial or federal authority. The equipment is to be operated only in providing services and for necessary training operations. Cet appareil de radar au travers des murs ne doit être utilisé que par les forces de l’ordre ou les organisations de secours d’urgence ou de combat du feu qui sont sous une autorité locale, provinciale ou fédérale. Cet équipement ne doit être utilisé que dans le cadre de services et pour les opérations d’entrainement nécessaires.
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Certificate To Whom it may concern: This is to certify that electromagnetic radiation emissions from transducers (antenna with transmitting and receiving electronics) manufactured by Geophysical Survey Systems, Inc. (GSSI) DO NOT constitute a safety or health hazard to operating personnel. Emissions from GSSI transducers are below the 10mW/cm² (100W/m²) level specified by the United States Occupational Safety and Health Administration (OSHA) regulations Paragraph 1910.97 states: "For normal environmental conditions and for incident electromagnetic frequencies from 100 MHz to 100 GHz, the radiation protection guide is 10 mW/cm² (milliwatt per square centimeter) as averaged over any possible 0.1 hour period." Emissions data using GPR SIR System-10, SIR-2, SIR-3, SIR-4, SIR-8, SIR-20, SIR-2000 and SIR-3000 (at the standard Pulse Repetition Frequency of 100 KHz) with the antenna Models listed and levels of Electromagnetic Radiation are specified herein: Following is the average power density data at 5cm and wide band. ANTENNA (MHz) AVERAGE POWER DENSITY (W/m2 @ 5 cm) OSHA SPEC. (W/m2) 100 Less than 0.0001 100 200 Less than 0.0001 100 300 Less than 0.0001 100 270 Less than 0.0001 100 400 Less than 0.0001 100 500 Less than 0.0001 100 900 Less than 0.0001 100 1000 Less than 0.0001 100 1600 Less than 0.0001 100 GEOPHYSICAL SURVEY SYSTEMS, INC. Alan E. Schutz VP Technology
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Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Ground Penetrating Radar Coordination Notice And Equipment Registration Note: This form is only for Domestic United States users. The Federal Communications Commission (FCC) requires that all users of GPR who purchased antennas after July 15th, 2002 register their equipment and areas of operation. If you have purchased any of the antennas listed in question 6 after July 15th, 2002, you must fill out this form and Fax and Mail to the FCC. Failure to do this is a violation of Federal law. 1. Date: 2. Company name: 3. Address: 4. Contact Information [contact name and phone number]: 5. Area Of Operation [state(s)]: ---Continued on next page.
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes 6. Equipment Identification: Brand Name: Geophysical Survey Systems, Inc. Antenna Model No. (center frequency): CHECK all antennas being registered. Model Frequency FCC ID 4105 2.0 GHz QF74105 5100 1.5 GHz QF75100 5101 1.0 GHz QF75100 4108F 1.0 GHz QF74108F HandyScan 1.0 GHz QF7HANDYSCAN 3101 900 MHz QF73101D 5103A 400 MHz QF75103A TerraVision 400 MHz QF7TERRAVISION 5104 270 MHz QF75104 5106 200 MHz QF75106 7. Receipt Date Of Equipment: Fax this form to the FCC at: 202-418-1944 And Mail to: Frequency Coordination Branch, OET Federal Communications Commission 445 12th Street, SW Washington, D.C. 20554 ATTN: UWB Coordination Do not send this information to GSSI.
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Table Of Contents Model 3101A Antenna................................................................................................... 1 System Setup - Standard Settings.............................................................................. 1 Preset Settings:.................................................................................................. 1 Deeper Profiling:................................................................................................. 1 Signal Position.................................................................................................... 2 Gain Check......................................................................................................... 2 Using Your 3101A Antenna with a Survey Wheel....................................................... 3 Model 611 (3 5/6” wheel).................................................................................... 3 Model 616 Minicart (4” wheel) ............................................................................ 3 Model 62X Survey Cart ...................................................................................... 4 Antenna Specifications ............................................................................................... 4
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Model 3101A Antenna Thank you for purchasing a GSSI 3101A. The Model 3101A antenna is a high frequency antenna that is designed for applications requiring very fine resolution and shallow depth penetration in a variety of materials. Please take a moment to examine your shipment to familiarize yourself with this manual. If you need assistance, GSSI technical support can be reached Monday-Friday, 8am- 5pm, US Eastern Time at (800) 524-3011, or at (603) 893-1109 (International). You can also access technical support on the web at www.geophysical.com. The Model 3101A can be used in continuous, survey wheel or static stacking modes. Please consult your control unit documentation for instructions on configuring your system for data collection modes. System Setup - Standard Settings Preset Settings: System Run Mode: Survey Wheel (recommended) or Continuous Range: 15 ns Number of Gain Points: 3 Vertical Low Pass Filter: 2500 MHz Vertical High Pass Filter: 225 MHz Samples per Scan: 512 Bits per Sample: 16 Scans per Second: Set to 64 (increase to 120 when using survey wheel). Deeper Profiling: Setup Mode: Manual System Run Mode: Survey Wheel (recommended) or Continuous Range: 30 – 50 ns Number of Gain Points: 3 Vertical Low Pass Filter: 2500 MHz Vertical High Pass Filter: 225 MHz Samples per Scan: 512 Bits per Sample: 16 Scans per Second: to 64 (increase to 120 when using survey wheel). 1
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Signal Position Place the antenna on the ground and use the Automatic Signal Position selection. The system will servo and place the direct coupling pulse at the top of the time range window. To test that you have the correct position, raise the antenna off the ground and you will observe on your system that the antenna transmit pulse (direct wave) will separate from the reflection from the ground. The higher that you raise the antenna, the further apart will be the two pulses. Newer control units such as the SIR-3000 and the SIR-20 have advanced algorithms to locate the surface position. If you would like to assure that the direct coupling pulse (time zero) is recorded, the user should place the Signal Position Servo in the manual mode. The signal should then be moved down in the time range window until the entire surface pulse is visible and there is some ‘dead time’ or flat trace visible above the direct coupling pulse in the time range window. If you are using your 3101A with the SIR-3000, it will be necessary to set the SURFACE% to zero in order to check the signal position. Please consult the SIR-3000 User’s Manual for additional instructions on this point. Gain Check The surface pulse should be about 2/3 the width of the screen. If it is greater, reduce the Gains manually. If the signal appears too small, you can manually increase the Gains, but the first gain point should never exceed 10dB; the last gain point should not exceed 65dB. 2
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes Using Your 3101A Antenna with a Survey Wheel By using a survey wheel with your antenna you can more easily relocate targets to the survey surface, and perform distance-based processing functions in RADAN without having to distance normalize your data. Survey wheels are available as a separate purchase. If you do not already own one, please contact your GSSI Sales Representative to discuss the features and benefits of each type. Model 611 (3 5/6” wheel) Ticks/foot: 609.6 Ticks/meter: 2000 To attach the 611, simply undo the four screws holding the antenna’s tow handle bracket and sandwich that 611 bracket plate between the antenna and the tow handle bracket. Replace the four screws to secure. Model 616 Minicart (4” wheel) Ticks/foot: 486 Ticks/meter: 1590 To attach the 616, first undo the four screws holding the antenna’s tow handle. Set the tow handle bracket aside, but retain the four screws and washers. Attach the 616 assembly to the 3101A with the four screws. Connect the two leads from the 616 to the two small connectors on the antenna. The wheel of the Model 616 can be removed and relocated on the cart to allow the antenna to scan with the dipoles oriented 90 degrees to normal. 3
Geophysical Survey Systems, Inc. Model 3101A Series Antennas System Settings and User Notes 4Model 62X Survey Cart Ticks/foot: -487.8 Ticks/meter: -1583 The 3101A can be placed in the white plastic antenna holder of the 62X cart for use on rougher terrain or for large area surveys. Note: Due to size limitations, a regular, straight connector control cable will not fit the 3101A and the 62X cart. Be sure that you have a control cable with a 90 degree connector on the antenna end. GSSI makes a 2-meter control cable with a 90 degree connector that is designed specifically to work with this cart. Antenna Specifications Center frequency: 900 MHz Pulse duration: 1.1 ns Depth of penetration: 0- 6 ft depending on dielectric permittivity Size of sensor: 13×7.5×3.5 inches (33×20×8cm) Weight of sensor: 7 lbs 4 oz. (3.4 kg) Survey Wheel: Model 611 (3 5/6” wheel): 2000 ticks/meter 609.6 ticks/foot Model 62X (three wheeled) Cart: -1583 ticks/meter -487.8 ticks/foot Model 616 cart (4.8” wheel): 1234.5 ticks/meter 486 ticks/foot

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