QF74108FGPR with 4108F Antenna

Model 4108F Horn Antenna System Settings and User Notes We Provide Complete Survey Solutions 13 Klein Drive, P.O. Box 97 North Salem, NH 03073-0097 Phone: (603) 893-1109 / Fax: (603) 889-3984 www.Geophysical.com [email protected] February 2002 Geophysical Survey Systems, Inc. Geophysical Survey Systems, Inc. Model 4108F Antenna System Settings and User’s Notes MN34-560 Rev - Geophysical Survey Systems, Inc. Model 4108F Antenna System Settings and User’s Notes MN34-560 Rev - LIMITED WARRANTY, LIMITATIONS OF LIABILITY AND RESTRICTIONS Geophysical Survey Systems, Inc. hereinafter referred to as GSSI, warrants that, for a period of 12 months from the delivery date to the original purchaser, GSSI's products 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 OR SOFTWARE, 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. GSSI does not convey any license under its patent or other intellectual property rights or the rights of others. NOTE: Information in this manual is subject to change without notice. Please consult the manual updates supplied with your system and contact GSSI with any additional questions. Copyright  2002 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. 13 Klein Drive North Salem, New Hampshire 03073-0097 Printed in the United States GSSI and SIR are registered trademarks of Geophysical Survey Systems, Inc. Windows is a registered trademark of the Microsoft Corporation. Geophysical Survey Systems, Inc. Model 4108F Antenna System Settings and User’s Notes MN34-560 Rev - FCC NOTICES: 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 12 th 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. Geophysical Survey Systems, Inc. Model 4108F Antenna System Settings and User’s Notes MN34-550 Rev A 1 Antenna Mounting Assembly Geophysical Survey Systems, Inc. Model 4108F Antenna System Settings and User’s Notes MN34-550 Rev A 2 Mounting and Data Collection Recommendations Mounting Specifications: The Model 4108F antenna mounting hardware includes 2 square fiberglass tubes and 2 gusset plates. Figure 1 shows a typical 4108 setup on the back of GSSI’s van. Figure 1: Typical Model 4108F setup showing fiberglass rods and gusset plates. The vertical metal pieces attached to the gusset plates are sold separately. It is recommended that the user follow the following specifications for mounting the 4108F antennas: (1) Recommended antenn…

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_____________________________________________________________________________________________________________ Geophysical Survey Systems, Inc. _____________________________________________________________________________________________________________ 13 Klein Drive - P.O. Box 97, North Salem, NH 03073-0097, U.S.A. / Telephone (603) 893-1109 Fax (603) 889-3984 website www.geophysical.com e-mail [email protected] August 8, 2002 Attention: Application Examiner Reviewing Engineer Re: Attestation Statement Applicant: Geophysical Survey Systems, Inc. FRN: 0007-2729-25 FCC ID: QF74108F To whom it may concern, The internal photographs submitted with this application are the same as was EMI tested. Sincerely, Dennis J. Johnson President, Geophysical Survey Systems, Inc.

_____________________________________________________________________________________________________________ Geophysical Survey Systems, Inc. _____________________________________________________________________________________________________________ 13 Klein Drive - P.O. Box 97, North Salem, NH 03073-0097, U.S.A. / Telephone (603) 893-1109 Fax (603) 889-3984 website www.geophysical.com e-mail [email protected] August 8, 2002 Attention: Application Examiner Reviewing Engineer Re: Request for confidentiality Applicant: Geophysical Survey Systems, Inc. FRN: 0007-2729-25 FCC ID: QF74108F To whom it may concern, Request is hereby submitted by Geophysical Survey Systems, Inc., to withhold from public review certain portions of the application for equipment certification for the referenced FCC identifier. In particular, the following sections of the application are requested to be kept confidential: • Schematics • Detailed Block diagrams • Detailed Operational/Functional Description Rationale for request for confidentiality: Geophysical Survey Systems, Inc. has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. The fee for confidentiality has been submitted along with the fee for certification. If you have questions or need further information, please contact the undersigned. Sincerely, Dennis J. Johnson President, Geophysical Survey Systems, Inc.

Letter of Agency I appoint Intertek Testing Services NA Inc. to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under the FCC rules until further notice. I further certify that no party (as defined in 1.2002 of CFR 47, 1995) to this application, including myself, is subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.,853A. Equipment: __ QF74108F ________________________________________________________________________ ________________________________________________________________________ Dated this __13 th _day of_August, 2002___. _____________________________________Signature Dennis J. Johnson______________________Name President______________________________Title Geophysical Survey Systems, Inc._________Company 603-893-1109_________________________Telephone

Re: FCC ID QF74108F Applicant: Geophysical Survey Systems, Inc. Correspondence Reference Number: 24259 731 Confirmation Number: EA454448 1) Upload a plot and table of data to show the -10 dB points. The plot should consist of max hold PEAK detector field strength level measured in any direction versus frequency. The field strength measurement for these points must account for non-linearities across the band that would be on the spectrum plot (ie: antenna and amplifier is not equal across the band). Submit a procedure for obtaining the peak plot used to determine the -10 dB points. Indicate any preamplifiers used in the test setup. A description of the test procedure is contained in contained in section 3.2 of the revised test report. All data is corrected for antenna factor, preamplifier and cable loss. A list of preamps used is shown in 3.2.2(2) and contained in the equipment list in Section 8. The data is acquired by computer and consists of 400 points. A table of data is unwieldy and extraneous. All data is contained in the plot (Figure 3.2-1). 2) The test report does not contain enough information to determine whether the simulated RMS calculation is correct. Please provide the following information. a) What were the VBW settings? - RBW, VBW, sweep time are listed in 4.2.2(5) b) What detector function did you use for obtaining the level at each point? - detector function is listed in 4.2.2(5) c) You indicated measurements were made from Tmax--.5mS to Tmax+.5mS. What analyzer settings were used to implement this? - Based on previous FCC comments, calculation in 1ms window is not required for the alternate test method. Therefore, 1ms calculation is no longer used. Calculations are performed using data taken during the sweep time specified in the report. c) What was the sweep time of the analyzer? - sweep time information is contained in 4.2.2(5) ***Additional information or tests may be requested depending on whether the proper measurements were made. Since you are not using an RMS detector, measurements must agree with the Measurement Procedure #3 in Appendix F in the Report and Order Docket 98-153 for making RMS measurement calculations when using an analyzer that does not incorporate an RMS detector. 3) The table 1 indicates measurements were at 3 meters while the Antenna factor lists Antenna factor dB(1/m). The antenna factor should that for 3 meters. Please explain/correct. Provide the antenna factor chart for the antennas used. What is the manufacturer and model no. of the antenna used. Verify that the measurements listed in Table 2 and 3 which were performed at 1 meter, have the proper 1 meter antenna factors for the antenna used. The unit shown for antenna factor was misinterpreted. The dB(1/m) is an indication of antenna factor in general (dB/m) necessary to get final data in dBuV/m. Antenna factors used are the factors appropriate to the specified test distance(s) A list of equipment (including calibration dates) has been added as Section 8. A table and/or plot of antenna factors is extraneous information. The antenna factor at each frequency is included in the tables of data. 4) Indicate compliance with 15.503(f). The device must be designed to operate when in contact with the ground and have shielding to direct emissions toward the ground. In addition, imaging systems must have a manual switch which causes the transmitter to cease within 10 seconds. Section 15.503(f) requires operation in contact with or within 1m of the ground. The 4108F operates 1m above ground and was tested in that configuration. Section 15.503(f) is a definition and indicates that a GPR achieves its function by directing energy into the ground. The test results show that the equipment complies with the RMS and QP limits in normal operating conditions. 5) Indicate compliance with 15.509(g), the label information must be on the device. Show were this label will be placed on the device. A revised exhibit showing the wording of the label has been submitted. 6) Provide complete schematics. The schematics should show the Remote Control System with the kill switch circuitry. The remote control system is a Class A approved PC. The EUT does all of the signal generation, transmitting and processing. The ‘kill switch’ is a contact closure at the end of the cable. The microprocessor on the radar board in the EUT processes the contact closure and disables the transmitter. 7) What is the center frequency? Show calculation. The center frequency calculation and result is shown in Section 3.3 8) The data taken with a horn antenna (this application used a horn above 960 MHz) should have the horn facing the radiating head of the device. Submit new data as necessary. During the testing reported in the revised report, all data below 1000MHz is taken with a log periodic antenna. Above 1000MHz, a horn antenna is used and aimed at the EUT, as described in 4.2.2(13) and (17)

To: Alan Schutz, Geophysical Survey Systems Inc From: Andy Leimer [email protected] FCC Application Processing Branch Re: FCC ID QF74108F Applicant: Geophysical Survey Systems, Inc. Correspondence Reference Number: 24859 731 Confirmation Number: EA454448 1) The data table in Figure 4.2.1 appears to be incorrect. For example the data at 961.5 MHz shows: -56.96 dBm + 107 = 47.0 dBuV/m measured 47.0 dBuV/m (measures) + 23.8 (AF) -35 dB (Pre-amp) + 2.5 dB (Cable loss) = 38.3 dBuV/m (Corrected field strength @ 3m) Limit = -65.3 dBm EIRP (dBm) = Eo (dBuV/m) - 95.28 @ 3m Limit = 29.98 dBuV/m It appears that you are over the limit. Please explain As with other applications, data for 1MHz RBW included the correction factor for dBm to dBuV/m in the raw data. The data table has been changed in accordance with previous applications to show the dBm to dBuV/m in a separate column. The resulting EIRP did not change. Plots of RMS data were incorrect. Correct plots were added. 2) Also, due to the new AC power line requirements, please provide the AC power line data. The AC power line test must show compliance with the requirements for the transmitter. Data for the SIR-20, which is the only component connected to the mains, has been added

From: <[email protected]> To: <[email protected]> Sent: February 28, 2003 4:18 PM Subject: New Test report To: Alan Schutz, Geophysical Survey Systems Inc From: Andy Leimer [email protected] FCC Application Processing Branch Re: FCC ID QF74108F Applicant: Geophysical Survey Systems, Inc. Correspondence Reference Number: 24866 731 Confirmation Number: EA454448 1) When I compared the data table in the new report, it appears that the margin of compliance is exactly the same but the raw data has changed. Please explain. Please refer to the cover letter submitted in response to reference #24859. The format of many of the earlier reports showed raw data that was calculated from measured voltage (i.e. EIRP dBm=dBuV-107+95.2) In order to better show the final calculations, the table was revised to show a direct dBm reading and a separate calculation of power to field strength.

QF74108F ANTENNA EXTERNAL PHOTOS Page 1 of 2 FULL VIEW AT TEST TOP VIEW QF74108F ANTENNA EXTERNAL PHOTOS Page 2 of 2 SIDE VIEW

QF74108F FCC LABEL LOCATION LABEL TO READ: LABEL MATERIAL: THESE LABELS ARE PERMANENT FOR THE LIFE OF THE PRODUCT. THEY ARE REVERSE SCREEN-PRINTED ON 8 MIL POLYESTER FILM WITH PERMANENT ADHESIVE. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING 2 CONDITIONS: 1. THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE. 2. THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. MADE IN USA FCC ID. QF74108F 1.25 " 3.5" FCC LABEL

QF74108 LABEL LOCATION REV B LABELS TO READ: LABEL MATERIAL: THESE LABELS ARE PERMANENT FOR THE LIFE OF THE PRODUCT. THEY ARE REVERSE SCREEN-PRINTED ON 8 MIL POLYESTER FILM WITH PERMANENT ADHESIVE. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING 2 CONDITIONS: 1. THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE. 2. THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. MADE IN USA FCC ID. QF74108 1.25 " 3.5" FCC LABELS 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.

QF74108F ANTENNA INTERNAL PHOTOS Page 1 of 8 REMOVED FROM CASE FAN PCB PARTLY VISIBLE QF74108F ANTENNA INTERNAL PHOTOS Page 2 of 8 WITH SHIELDING PC BOARDS SHOWN ABOVE: 1. ELECTRONICS INTERFACE BOARD (MAIN BOARD) 2. DELAY LINE PCB (TOP) 3. MONOCYCLE GENERATOR (MOUNTED ON LEFT SIDE) 4. RF AMPLIFIER (TO RIGHT OF BOARD) 5. 3GHZ RECEIVER SAMPLER (BOTTOM) 6. FAN PC BOARD (NOT SHOWN QF74108F ANTENNA INTERNAL PHOTOS Page 3 of 8 1. ELECTRONICS INTERFACE BOARD TOP BACK QF74108F ANTENNA INTERNAL PHOTOS Page 4 of 8 2. DELAY LINE PC BOARD TOP BACK QF74108F ANTENNA INTERNAL PHOTOS Page 5 of 8 3. MONOCYCLE GENERATOR TOP BACK QF74108F ANTENNA INTERNAL PHOTOS Page 6 of 8 4. RF AMPLIFIER TOP BACK QF74108F ANTENNA INTERNAL PHOTOS Page 7 of 8 5. 3GHZ RECEIVER SAMPLER TOP BOTTOM QF74108F ANTENNA INTERNAL PHOTOS Page 8 of 8 6. FAN PC BOARD

QF74108 Pulse shape. Horizontal scale is 20 ns full scale. The initial small pulse is the direct coupling internal to the transducer. The larger pulse is the signal bounced off a metal plate.

MM FCC Subpart 15FPage 1 of 27 Project Number: 3036360Report number 4108_report_2_28_03.doc TEST REPORT Report Number: 4108_report_2_28_03.doc Project Number: 3036360 Date: 2/28/03 Date(s) of Test: August 6, 2002 and January 6-10, 2003 Evaluation of the Model number: 4108F To CFR 47 Part 15 Subpart F For Geophysical Survey Systems Test Performed by: Intertek Testing Services Test Authorized by: Geophysical Survey Systems 70 Codman Hill Rd. Boxborough, MA 01719 13 Klein Drive PO Box 97 Salem, NH 03079 Prepared by: _______________________________Date: _______________________________ Robert F. Martin Reviewed by: _______________________________Date: _______________________________ Robert F. Martin Sr. Technical Manager All services undertaken are subject to the following general policy: Reports are submitted for exclusive use of the client to whom they are addressed. Their significance is subject to the adequacy and representative character of the samples and to the comprehensiveness of the tests, examinations or surveys made. No quotations from reports or use of Intertek Testing Services NA Inc. name is permitted except as expressly authorized by Intertek Testing Services NA Inc. in writing. This report must not be used to claim product endorsement by NVLAP, NIST or any other agency of the U.S. Government. AA FCC Subpart 15FPage 2 of 27 Project Number: 3036360Report number 4108_report_2_28_03.doc EXECUTIVE SUMMARY............................................................................................................................................................................................4 1.INTRODUCTION..................................................................................................................................................................................................5 1.1.CLIENT INFORMATION...........................................................................................................................................5 1.2.TEST PLAN REFERENCE.........................................................................................................................................5 1.3.EQUIPMENT UNDER TEST (EUT)..........................................................................................................................5 1.3.1System Support Equipment.........................................................................................................................5 1.3.2System Block Diagram................................................................................................................................5 1.3.3Justification...................................................................................................................................................5 1.3.4Mode(s) of Operation...................................................................................................................................6 1.4.MODIFICATIONS REQUIRED FOR COMPLIANCE.....................................................................................................6 2.TEST ENVIRONMENT......................................................................................................................................................................................7 2.1.TEST FACILITY.......................................................................................................................................................7 2.2.TEST EQUIPMENT...................................................................................................................................................7 2.3.SAMPLE CALCULATIONS.......................................................................................................................................7 2.3.1Field Strength Calculation...........................................................................................................................7 2.3.2EIRP Calculation..........................................................................................................................................8 2.3.3RMS calculation...........................................................................................................................................8 2.4.MEASUREMENT UNCERTAINTY............................................................................................................................9 3.ULTRA WIDEBAND OPERATION...........................................................................................................................................................10 3.1.OPERATIONAL LIMITATIONS (SECTION 15.521)................................................................................................10 3.2.UWB BANDWIDTH (SECTION 15.503(A))..........................................................................................................10 3.2.1Requirement (low-frequency imaging systems).......................................................................................10 3.2.2Test Procedure............................................................................................................................................10 3.2.3Test Results.................................................................................................................................................10 3.3.CENTER FREQUENCY (SECTION 15.503(B)).......................................................................................................10 3.3.1Requirement................................................................................................................................................10 3.3.2Test Procedure............................................................................................................................................10 3.3.3Test Results.................................................................................................................................................11 3.4.FR…

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1.1 Configuration Photographs Worst-Case Radiated Emission Below 960MHz Worst-Case Radiated Emission Above 960MHz