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Activation Report-Verizon 249535_DEANZA STEVENS CREEK_2020_Postcon_NCA-P-162159 (Jurisdiction)
Activation Report • Verizon Wireless • Small Cell No. 417719 “SF_CUPER025” 10057 Saich Way • Cupertino, California A8LQ Page 1 of 3 ©2020 Statement of Hammett & Edison, Inc., Consulting Engineers The firm of Hammett & Edison, Inc., Consulting Engineers, has been retained on behalf of Verizon Wireless, a personal wireless telecommunications carrier, to evaluate the small cell located at 10057 Saich Way in Cupertino, California, compliance with appropriate guidelines limiting human exposure to radio frequency (“RF”) electromagnetic fields. Executive Summary Verizon had installed a cylindrical antenna above the light pole sited in the public right-of-way in front of 10057 Saich Way in Cupertino. All exposure levels under the existing conditions for anyone in publicly accessible areas nearby were well below the federal standard. Prevailing Exposure Standards The U.S. Congress requires that the Federal Communications Commission (“FCC”) evaluate its actions for possible significant impact on the environment. A summary of the FCC’s exposure limits is shown in Figure 1. These limits apply for continuous exposures and are intended to provide a prudent margin of safety for all persons, regardless of age, gender, size, or health. The most restrictive limit for exposures of unlimited duration at several wireless service bands are as follows: Transmit “Uncontrolled” Occupational Limit Wireless Service Band Frequency Public Limit (5 times Public) Microwave (point-to-point) 1–80 GHz 1.0 mW/cm2 5.0 mW/cm2 Millimeter-wave 24–47 1.0 5.0 Part 15 (WiFi & other unlicensed) 2–6 1.0 5.0 CBRS (Citizens Broadband Radio) 3,550 MHz 1.0 5.0 BRS (Broadband Radio) 2,490 1.0 5.0 WCS (Wireless Communication) 2,305 1.0 5.0 AWS (Advanced Wireless) 2,110 1.0 5.0 PCS (Personal Communication) 1,930 1.0 5.0 Cellular 869 0.58 2.9 SMR (Specialized Mobile Radio) 854 0.57 2.85 700 MHz 716 0.48 2.4 [most restrictive frequency range] 30–300 0.20 1.0 General Facility Requirements Small cells typically consist of two distinct parts: the electronic transceivers (also called “radios” or “channels”) that are connected to the traditional wired telephone lines, and the passive antennas that send the wireless signals created by the radios out to be received by individual subscriber units. The radios are typically mounted on the support pole or placed in a cabinet at ground level, and they are Activation Report • Verizon Wireless • Small Cell No. 417719 “SF_CUPER025” 10057 Saich Way • Cupertino, California A8LQ Page 2 of 3 ©2020 connected to the antennas by coaxial cables. Because of the short wavelength of the frequencies assigned by the FCC for wireless services, the antennas require line-of-sight paths for their signals to propagate well and so are installed at some height above ground. The antennas are designed to concentrate their energy toward the horizon, with very little energy wasted toward the sky or the ground. This means that it is generally not possible for exposure conditions to approach the maximum permissible exposure limits without being physically very near the antennas. Site Description The site was visited by Mr. Scott Walthard, a qualified field technician employed by Hammett & Edison, Inc., during normal business hours on May 27, 2020, a non-holiday weekday. Verizon had installed a small cylindrical antenna on top of a municipal light pole sited in the public right-of-way across the street from the single-story commercial building at 10057 Saich Way in Cupertino. There were observed no other wireless telecommunications base stations located at or next to the site. There were no residences located within 100 feet of the site. Measurement Results The measurement equipment used was a Narda Type NBM-520 Broadband Field Meter with Type EA-5091 Isotropic Electric Field Probe (Serial No. 01035) and a Wandel & Goltermann Type EMR-300 Radiation Meter with Type 18 Isotropic Electric Field Probe (Serial No. C-0010). The meters and probes were under current calibration by the manufacturer. Measurements were made from a bucket-truck at the antenna, as well as at ground near the site. At each test point, the measurement results were compared with applicable FCC standards. The maximum power density level observed beyond 1 foot from the antenna was less than the applicable public limit. The maximum power density level observed for a person at ground near the site was 0.00026 mW/cm2, which is 0.13% of the most restrictive public limit. The three-dimensional perimeter of RF power density levels equal to the FCC standard for uncontrolled areas did not extend into any uncontrolled areas. No Recommended Compliance Measures Access to the antenna was restricted by its mounting location and height. Since exposure levels in publicly accessible areas were found to be below the applicable public limit, no other access controls or signs are required to meet FCC public guidelines. The operation can be considered intrinsically compliant with the FCC occupational guidelines. An explanatory sign was posted on the pole below the antenna. Activation Report • Verizon Wireless • Small Cell No. 417719 “SF_CUPER025” 10057 Saich Way • Cupertino, California A8LQ Page 3 of 3 ©2020 Conclusion Based upon the information and analysis above, it is the undersigned’s professional opinion that this Verizon Wireless small cell, as installed and operating at the time of the measurements, complies with the FCC standards for limiting public exposure in uncontrolled areas to radio frequency energy and, therefore, does not for this reason cause a significant impact on the environment. Authorship The undersigned author of this statement is a qualified Professional Engineer, holding California Registration Nos. E-13026 and M-20676, which expire on June 30, 2021. This work has been carried out under his direction, and all statements are true and correct of his own knowledge except, where noted, when data has been supplied by others, which data he believes to be correct. William F. Hammett, P.E. 707/996-5200 June 1, 2020 Comment on Acoustic Noise As noted for similar Verizon facilities at other locations in Cupertino, no noise was perceptible from the equipment cabinets on the side of the pole. FCC Radio Frequency Protection Guide FCC Guidelines Figure 1 1000 100 10 1 0.1 0.1 1 10 100 103 104 105 Occupational Exposure Public Exposure PCS CellFM PowerDensity(mW/cm2)The U.S. Congress required (1996 Telecom Act) the Federal Communications Commission (“FCC”) to adopt a nationwide human exposure standard to ensure that its licensees do not, cumulatively, have a significant impact on the environment. The FCC adopted the limits from Report No. 86, “Biological Effects and Exposure Criteria for Radiofrequency Electromagnetic Fields,” published in 1986 by the Congressionally chartered National Council on Radiation Protection and Measurements (“NCRP”). Separate limits apply for occupational and public exposure conditions, with the latter limits generally five times more restrictive. The more recent standard, developed by the Institute of Electrical and Electronics Engineers and approved as American National Standard ANSI/IEEE C95.1-2006, “Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz,” includes similar limits. These limits apply for continuous exposures from all sources and are intended to provide a prudent margin of safety for all persons, regardless of age, gender, size, or health. As shown in the table and chart below, separate limits apply for occupational and public exposure conditions, with the latter limits (in italics and/or dashed) up to five times more restrictive: Frequency Electromagnetic Fields (f is frequency of emission in MHz) Applicable Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Equivalent Far-Field Power Density (mW/cm2) 0.3 – 1.34 614 614 1.63 1.63 100 100 1.34 – 3.0 614 823.8/ f 1.63 2.19/ f 100 180/ f2 3.0 – 30 1842/ f 823.8/ f 4.89/ f 2.19/ f 900/ f2 180/ f2 30 – 300 61.4 27.5 0.163 0.0729 1.0 0.2 300 – 1,500 3.54 f 1.59 f f /106 f /238 f/300 f/1500 1,500 – 100,000 137 61.4 0.364 0.163 5.0 1.0 Frequency (MHz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©2020 YOUR RF SAFETY PARTNER Page 1/17 RADIO FREQUENCY ELECTROMAGNETIC FIELDS EXPOSURE REPORT Prepared for Verizon Site Name: Deanza Stevens Creek PSLC#: 249535 Site Type: Mono-Eucalyptus Located at: 10800 Torre Ave Cupertino, CA 95014 Latitude: 37.31914444 / Longitude: -122.0279417 Report Date: 6/11/2020 Report By: Christopher Stollar, P.E. Based on FCC Rules and Regulations, Verizon is compliant. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 2/17 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY ................................................................................................................................ 3 2.0 SITE DESCRIPTION ........................................................................................................................................ 4 2.1 Site Map ............................................................................................................................................................. 4 2.2 Site Photographs ............................................................................................................................................... 5 2.3 Antenna Inventory ........................................................................................................................................... 7 3.0 ANALYSIS ........................................................................................................................................................... 8 3.1 Existing Conditions .......................................................................................................................................... 8 3.2 Emission Measurements .................................................................................................................................. 9 3.3 Emission Predictions .................................................................................................................................... 10 4.0 CONCLUSION ................................................................................................................................................ 12 4.1 Results ............................................................................................................................................................. 12 4.2 Recommendation(s) ...................................................................................................................................... 12 4.3 Statement of Compliance ............................................................................................................................. 13 4.4 Engineer Certification ................................................................................................................................... 13 Appendix A: Background ........................................................................................................................................... 14 Appendix B: Measurement and/or Computer Simulation Methods ................................................................... 15 Appendix C: Limitations ............................................................................................................................................ 15 Appendix D: Verizon’s RF Advisory Signs ............................................................................................................. 16 Appendix E: Equipment Certification ..................................................................................................................... 17 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 3/17 1.0 EXECUTIVE SUMMARY Dtech Communications, LLC (“Dtech”) has been retained by Verizon to determine whether its wireless communications facility complies with the Federal Communications Commission (“FCC”) Radio Frequency (“RF”) Safety Guidelines. This report contains a computer-simulated and on-site, measurement analysis of the Electromagnetic Fields (“EMF”) exposure resulting from the facility. The analysis also includes assessment of existing wireless carriers on site, where information is provided. The table below summarizes the results at a glance: Table 1: EMF Summary Verizon Summary Access Type Gates Access to antennas locked Yes RF Sign(s) @ access point(s) None RF Sign(s) @ antennas None Barrier(s) @ sectors NA Max EMF measured level for Facility on Ground 0.3% General Population Max EMF simulated level for Verizon on Ground 0.2% General Population Min Clearance Distance from Face of Verizon’s Antennas 42 Feet 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 4/17 2.0 SITE DESCRIPTION The wireless telecommunication facility is located on the ground. The facility consists of 2 wireless carrier(s) or operator(s): Verizon and AT&T. The antenna(s) are typically grouped into sectors pointing in different directions to achieve the desired areas of coverage. Verizon’s antenna(s) are mounted on a mono- eucalyptus tower and connected to the equipment via coaxial cables. 2.1 Site Map 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 5/17 2.2 Site Photographs General site view General site view Verizon Access Gate Verizon Access Gate Verizon Sector A Verizon Sector B 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 6/17 Verizon Sector C Verizon Equipment AT&T Sector A AT&T Sector B AT&T Sector C AT&T Equipment 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 7/17 2.3 Antenna Inventory Technical specifications in the table below are provided by our clients and/or gathered from physical field surveys where applicable and/or possible. Conservative estimates are used where information is not provided or available. Table 2: Site Technical Specifications Antenna ID Operator Antenna Mfg Antenna Model Type Frequency (MHz) Orientation (°T) Horizontal BWdth (°) Antenna Aperture (ft) Antenna Gain (dBd) Total Input Power (Watts) Total ERP (Watts) Bottom Tip Height Above Ground (Z) (ft) Bottom Tip Height Antenna Level (Z) (ft) A1 Verizon Commscope SBNHH-1D65B Panel 746 30 68 6.1 12.3 71 1211 63.0 0.0 A1 Verizon Commscope SBNHH-1D65B Panel 880 30 66 6.1 12.6 71 1285 63.0 0.0 A1 Verizon Commscope SBNHH-1D65B Panel 2120 30 63 6.1 16.5 142 6326 63.0 0.0 A2 Verizon Commscope SBNHH-1D65B Panel 746 30 68 6.1 12.3 71 1211 63.0 0.0 A2 Verizon Commscope SBNHH-1D65B Panel 880 30 66 6.1 12.6 71 1285 63.0 0.0 A2 Verizon Commscope SBNHH-1D65B Panel 1965 30 66 6.1 15.9 142 5472 63.0 0.0 B1 Verizon Commscope SBNHH-1D65B Panel 746 150 68 6.1 12.3 71 1211 63.0 0.0 B1 Verizon Commscope SBNHH-1D65B Panel 880 150 66 6.1 12.6 71 1285 63.0 0.0 B1 Verizon Commscope SBNHH-1D65B Panel 2120 150 63 6.1 16.5 142 6326 63.0 0.0 B2 Verizon Commscope SBNHH-1D65B Panel 746 150 68 6.1 12.3 71 1211 63.0 0.0 B2 Verizon Commscope SBNHH-1D65B Panel 880 150 66 6.1 12.6 71 1285 63.0 0.0 B2 Verizon Commscope SBNHH-1D65B Panel 1965 150 66 6.1 15.9 142 5472 63.0 0.0 C1 Verizon Commscope SBNHH-1D65B Panel 746 270 68 6.1 12.3 71 1211 63.0 0.0 C1 Verizon Commscope SBNHH-1D65B Panel 880 270 66 6.1 12.6 71 1285 63.0 0.0 C1 Verizon Commscope SBNHH-1D65B Panel 2120 270 63 6.1 16.5 142 6326 63.0 0.0 C2 Verizon Commscope SBNHH-1D65B Panel 746 270 68 6.1 12.3 71 1211 63.0 0.0 C2 Verizon Commscope SBNHH-1D65B Panel 880 270 66 6.1 12.6 71 1285 63.0 0.0 C2 Verizon Commscope SBNHH-1D65B Panel 1965 270 66 6.1 15.9 142 5472 63.0 0.0 A1 AT&T Commscope SBNHH-1D65B Panel 700 80 68 6.1 12.4 -1045 49.0 N/A A1 AT&T Commscope SBNHH-1D65B Panel 1900 80 66 6.1 15.9 -6183 49.0 N/A A2 AT&T Commscope SBNHH-1D65B Panel 850 80 66 6.1 12.7 -1472 49.0 N/A A2 AT&T Commscope SBNHH-1D65B Panel 2100 80 63 6.1 16.4 -7017 49.0 N/A A3 AT&T Commscope SBNHH-1D65B Panel 700 80 68 6.1 12.4 -1377 49.0 N/A A3 AT&T Commscope SBNHH-1D65B Panel 2300 80 58 6.1 16.3 -4258 49.0 N/A B1 AT&T Commscope SBNHH-1D65B Panel 700 320 68 6.1 12.4 -1045 49.0 N/A B1 AT&T Commscope SBNHH-1D65B Panel 1900 320 66 6.1 15.9 -6183 49.0 N/A B2 AT&T Commscope SBNHH-1D65B Panel 850 320 66 6.1 12.7 -1472 49.0 N/A B2 AT&T Commscope SBNHH-1D65B Panel 2100 320 63 6.1 16.4 -7017 49.0 N/A B3 AT&T Commscope SBNHH-1D65B Panel 700 320 68 6.1 12.4 -1377 49.0 N/A B3 AT&T Commscope SBNHH-1D65B Panel 2300 320 58 6.1 16.3 -4258 49.0 N/A C1 AT&T Commscope SBNHH-1D65B Panel 700 200 68 6.1 12.4 -1045 49.0 N/A C1 AT&T Commscope SBNHH-1D65B Panel 1900 200 66 6.1 15.9 -6183 49.0 N/A C2 AT&T Commscope SBNHH-1D65B Panel 850 200 66 6.1 12.7 -1472 49.0 N/A C2 AT&T Commscope SBNHH-1D65B Panel 2100 200 63 6.1 16.4 -7017 49.0 N/A C3 AT&T Commscope SBNHH-1D65B Panel 700 200 68 6.1 12.4 -1377 49.0 N/A C3 AT&T Commscope SBNHH-1D65B Panel 2300 200 58 6.1 16.3 -4258 49.0 N/A 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 8/17 3.0 ANALYSIS 3.1 Existing Conditions Figure 1: Site Diagram - Plan (bird’s eye) view map of signs/barriers currently existing on site. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 9/17 3.2 Emission Measurements Field measurements were conducted at the subject site on 6/9/2020 11:00 AM by James McDaniel, Dtech personnel. Weather conditions can be best described as sunny, mild breeze. Figure 2: Plan (bird’s eye) view map of results compared to FCC’s General Population MPE (Maximum Permissible Exposure) Limits. A result higher than 100% exceeds the FCC’s General Population MPE Limits. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 10/17 3.3 Emission Predictions Figure 3: Plan (bird’s eye) view map of results compared to FCC’s General Population MPE (Maximum Permissible Exposure) Limits. White represents areas where exposure levels are calculated to be at or below 5%; Green- between 5% & 100% (below MPE limits); blue, yellow & red – greater than 100% (exceeds MPE limits). Individuals can safely occupy areas in white and green for indefinite amount of time; whereas areas in blue, yellow & red must be restricted to RF trained personnel who has been made fully aware of potential for exposure, has control and knows how to reduce their exposure with the use of personal protection equipment or has the ability to power down the transmitters. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 11/17 Figure 4: Plan (bird’s eye) view map of results compared to FCC’s General Population MPE (Maximum Permissible Exposure) Limits. White represents areas where exposure levels are calculated to be at or below 5%; Green- between 5% & 100% (below MPE limits); blue, yellow & red – greater than 100% (exceeds MPE limits). Individuals can safely occupy areas in white and green for indefinite amount of time; whereas areas in blue, yellow & red must be restricted to RF trained personnel who has been made fully aware of potential for exposure, has control and knows how to reduce their exposure with the use of personal protection equipment or has the ability to power down the transmitters. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 12/17 4.0 CONCLUSION 4.1 Results For a person standing in accessible areas on the ground, calculations and measurements for Verizon’s site including contributions from existing carriers resulted in exposure levels below the FCC’s most stringent General Population MPE Limits (see figure 2 - 3). At antenna elevation, the highest calculated exposure level is above the FCC’s General Population MPE Limits near the Verizon antenna(s) (see figure 4). The overexposed (yellow and blue) areas extend 42-feet from the front face of the Verizon antenna(s). There are no other buildings or surrounding structures at antenna elevation within 42-feet of the Verizon antenna(s). Beyond 42-feet, exposure levels are predicted to be below the FCC’s most stringent General Population MPE Limits. The antennas are mounted on a tall tower and therefore not accessible by the general public. It is presumed that Verizon employees and contractors are aware of the transmitting antennas and will take appropriate precautions when working near them. However, there may be situations where workers i.e. tree trimming personnel, etc., may find themselves directly in front of the antennas. Individuals working near/in front of antennas must receive appropriate RF safety training1 and be made aware of the HotZones (areas where RF exposure may potentially exceed FCC safety limits). In addition, contact information should be made available in the event work is required within the HotZones. 4.2 Recommendation(s) Further actions are not required. Mitigation measures for other carriers at this facility may be required but have not been determined as part of this report. 1 Dtech Communications’ RF Safety training program - AntennaView.com® 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 13/17 06/30/21 4.3 Statement of Compliance Based on the above results, analysis and recommendation(s), it is the undersigned’s professional opinion that Verizon’s site including contributions from existing carriers is compliant with the FCC’s RF Safety Guidelines. 4.4 Engineer Certification This report has been prepared by or under the direction of the following Registered Professional Engineer: Darang Tech, holding California registration number 16000. I have reviewed this report and believe it to be both true and accurate to the best of my knowledge. ________________________ Darang Tech, P.E. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 14/17 Appendix A: Background Dtech uses the FCC’s guidelines described in detail in Office of Engineering & Technology, Bulletin No. 65 (“OET-65”) “Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields”. The table below summarizes the current Maximum Permissible Exposure (“MPE”) safety limits classified into two groups: General population and Occupational. Table 3: FCC MPE Limits (from OET-65) Frequency (Mhz) General Population/ Uncontrolled MPE (mW/cm2) Averaging Time (minutes) Occupational/ Controlled MPE (mW/cm2) Averaging Time (minutes) 30 - 300 0.2 30 1.0 6 300 - 1500 Frequency (Mhz)/1500 (0.2 – 1.0) 30 Frequency (Mhz)/300 (1.0 – 5.0) 6 1500 - 100,000 1.0 30 5.0 6 General population/uncontrolled limits apply in situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment, and may not be fully aware of the potential for exposure or cannot exercise control over their exposure. Therefore, members of the general public always fall under this category when exposure is not employment-related. Occupational/controlled limits apply in situations in which persons are exposed as a consequence of their employment, and those persons have been made fully aware of the potential for exposure and can exercise control over their exposure. Occupational/controlled limits also apply where exposure is of a transient nature as a result of incidental passage through a location where exposure levels may be above general population/uncontrolled limits, as long as the exposed person has been made fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. It is important to understand that the FCC guidelines specify exposure limits not emission limits. For a transmitting facility to be out of compliance with the FCC's RF safety guidelines an area or areas where levels exceed the MPE limits must, first of all, be in some way accessible to the public or to workers. When accessibility to an area where excessive levels is appropriately restricted, the facility or operation can certify that it complies with the FCC requirements. 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 15/17 Appendix B: Measurement and/or Computer Simulation Methods Spatial averaging measurement technique is used. An area between 2 and 6 feet, approximately the size of an average human, is scanned in single passes from top to bottom in multiple planes. When possible, measurements were made at very close proximity to the antennas and inside the main beam where most of the energy is emitted. The spatial averaged values were recorded. A result higher than 100% exceeds the FCC’s General Population MPE Limits. Dtech uses an industry standard power density prediction computer Model2 to assess the worse-case, cumulative EMF impact of the surrounding areas of the subject site. The Model does not take into account losses due to buildings. Its methodologies are conservative enough to account for typical down-tilts deployed in wireless communications. In addition, the analysis is performed at 100% duty cycle-all transmitters are active at all times and transmitting at maximum power. For purposes of a cumulative study, nearby transmitters are included where possible. The result is a surrounding area map color-coded to percentages of the applicable FCC’s MPE Limits. Appendix C: Limitations The conclusions in this document rendered by Dtech are based solely upon the information collected during the site survey and/or furnished by our Client which Dtech believes is accurate and correct. Dtech, however, has no responsibility should such Client provided information prove to be inaccurate or incorrect. Third party specification estimates used for cumulative computer simulation purposes, where applicable, are based on common industry practices and our best interpretation of available information. Data, results and conclusions in this document are valid as of its date. However, as mobile technologies continuously change, these data, results and conclusions may also be at variance with such future changes. Dtech has no responsibility to update its survey or report to account for such future technology changes. This document was prepared for the use of our Client only and cannot be utilized by any third party for any purpose without Dtech’s written consent. Dtech shall have no liability for any unauthorized use of this document and any such unauthorized user shall defend, indemnify and hold Dtech and its owners, directors, officers and employees harmless from and against any liability, claim, demand, loss or expense (including reasonable attorney’s fees) arising from such unauthorized use. 2 Roofmaster(tm) 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 16/17 Appendix D: Verizon’s RF Advisory Signs GUIDELINES Sign NOC INFORMATION Sign NOTICE Sign CAUTION Sign WARNING Sign 5850 Oberlin Drive, Ste. 300 ▲ San Diego, CA 92121 ▲ 858.792.0066 ▲ www.dtechcom.com Page 17/17 Appendix E: Equipment Certification