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10095833.Central_Cupertino.01.31.2022.PE
On-Site Radio Frequency Safety Survey Report (RFSSR) Prepared For: Site Name: Central Cupertino FA#: 10095833 USID: 13192 Site ID: CCL00737-MRSFR065890 Address: 10101 North De Anza Boulevard Cupertino, CA 95014 County: Santa Clara Latitude: 37.323833 Longitude: -122.033167 Additional Site Information Property Owner: N/A Property Owner Contact: N/A M-RFSC Name: Casey Chan Site Structure Type: Rooftop Site Access Restriction: 5-day notice required for access Access Control: Client arranges access. Report Information Survey Technician: Scott Marmorine Site Survey Date: January 28, 2022 at 8:00 AM Report Writer: Marvin Toussaint Report Generated Date: February 2, 2020 Meter Model/Serial: NBM-550 / F-0266 Probe Model/Serial: EA-5091 / 01187 Calibration Date: October 27, 2020 Calibration Date: February 24, 2020 Compliance Statement Based on the information collected, AT&T Mobility is Compliant with FCC Radiofrequency Radiation Exposure Limits. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 2 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Table of Contents 1 General Summary ....................................................................................................... 3 1.1 Site Summary ....................................................................................................... 3 1.2 Climate Conditions at Time of On-Site Audit ........................................................ 3 1.3 Fall Arrest & Parapet Information ......................................................................... 3 2 Site Scale Map ............................................................................................................ 4 3 Antenna Inventory ....................................................................................................... 6 4 Site Photographs ......................................................................................................... 7 5 Emission Measurements and Discussion .................................................................. 25 5.1 On-Site Measurements ....................................................................................... 25 5.2 Predicted Emission Levels and Discussion ........................................................ 27 5.2.1 Predictive AT&T Mobility’s RF Contribution Only on the Site ........................ 28 6 Statement of Compliance .......................................................................................... 33 6.1 Statement of AT&T Mobility Compliance ............................................................ 33 6.2 Compliance Requirement Diagram (Alpha Sector) ............................................. 34 6.3 Compliance Requirement Diagram (Beta Sector) ............................................... 35 6.4 Compliance Requirement Diagram (Gamma Sector) ......................................... 36 7 Appendix A ................................................................................................................ 37 7.1 Technical Framework ......................................................................................... 37 8 Appendix B ................................................................................................................ 41 8.1 Qualifications of Waterford Consultants, LLC ..................................................... 41 9 Appendix C ................................................................................................................ 42 9.1 RoofMaster™ ..................................................................................................... 42 10 Appendix D ................................................................................................................ 43 10.1 Statement of Limiting Conditions ........................................................................ 43 Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 3 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 1 General Summary 1.1 Site Summary Existing RF Sign(s) at Access Point(s) None Existing RF Sign(s) at AT&T Mobility Sectors Alpha: Caution2B Beta: Caution2B Gamma: Caution2B Existing Barriers at AT&T Mobility Sectors Alpha/Beta/Gamma Max Measured Spatial Average MPE% & Location on Site (General Public) 59.5% at measurement #7 near AT&T Gamma Sector antenna #12 Max Predictive Spatial Average MPE% & Location on Site (General Public) 3325.39% on gamma sector in front of antenna #14 Max Predictive Spatial Average MPE% at Walkable Surface (General Public) 3325.39% on gamma sector in front of antenna #14 Max Measured Spatial Average MPE% at Ground (General Public) 0.1% on the ground Max Predictive Spatial Average MPE% at Ground (General Public) 0.1% on the ground Overall Site Compliance Compliant 1.2 Climate Conditions at Time of On-Site Audit Temperature: 42 °F Sky Conditions: clear Wind Factor: mild Precipitation: None 1.3 Fall Arrest & Parapet Information Parapet Available: Yes Parapet Height (Inches): 24” Fall Arrest Anchor Available: No information available Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 4 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 2 Site Scale Map Signs and Barriers Required for Compliance Overall Site (AT&T Mobility Only) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 5 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Image to show distance to surrounding buildings 50’ Grid Site Nam e: Central Cupertino Site FA: 10095833 RF-22-0036 Page 6 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 3 Antenna Inventory Ant # Operator Antenna Make Pattern: Type Freq (MHz) Block Mech/Elec Az (deg) Mech downtilt (deg) Horizontal Beam Width (deg) Antenna Length/Aperture (ft) Antenna Gain (dBd) TPO (Watts) ERP (Watts) X (ft) Y (ft) Antenna Centerline Main Level (52ft) Bottom of Antenna Main Level (52ft) 1 AT&T QUINTEL QS4658-3 02DT Panel 700 B29 20 0 64 4.33 10.25 80 847 118.6 57.7 5 2.8 1 AT&T QUINTEL QS4658-3 02DT Panel 2300 B30 20 0 57 4.33 13.85 100 2427 118.6 57.7 5 2.8 2 AT&T KATHREIN 742264V01 00DT Panel 850 B5 20 0 67.7 4.38 11.95 80 1253 107.3 58.4 5 2.8 3 AT&T ERICSSON SON_AIR5331_B260_TB Panel 39000 n260 20 0 4 2 26.89 1.2 610 124.5 57.6 5 4 4 AT&T COMMSCOPE SBNHH-1D65A 00DT Panel 2100 B66 20 0 62 4.63 14.7 240 7083 93.8 58.6 5 2.7 5 AT&T QUINTEL QS4658-3E 02DT Panel 700 B12 20 0 69 4.33 10.15 80 828 90.7 59.1 5 2.8 5 AT&T QUINTEL QS4658-3E 02DT Panel 850 B5 20 0 65 4.33 11.15 80 1043 90.7 59.1 5 2.8 5 AT&T QUINTEL QS4658-3E 02DT Panel 1900 B25 20 0 74 4.33 13.55 160 3623 90.7 59.1 5 2.8 6 AT&T ERICSSON SON_AIR5331_B260_TB Panel 39000 n260 0 0 4 2 26.89 1.2 610 19.4 47.6 5 4 7 AT&T QUINTEL QS4658-3 02DT Panel 700 B29 260 0 64 4.33 10.25 80 847 17.3 46.7 5 2.8 7 AT&T QUINTEL QS4658-3 02DT Panel 2300 B30 260 0 57 4.33 13.85 100 2427 17.3 46.7 5 2.8 8 AT&T KATHREIN 742264V01 00DT Panel 850 B5 260 0 67.7 4.38 11.95 80 1253 17.4 42.9 5 2.8 9 AT&T COMMSCOPE SBNHH-1D65A 00DT Panel 2100 B66 260 0 62 4.63 14.7 240 7083 17.4 39.8 5 2.7 10 AT&T QUINTEL QS4658-3E 02DT Panel 700 B12 260 0 69 4.33 10.15 80 828 17.3 35.4 5 2.8 10 AT&T QUINTEL QS4658-3E 02DT Panel 850 B5 260 0 65 4.33 11.15 80 1043 17.3 35.4 5 2.8 10 AT&T QUINTEL QS4658-3E 02DT Panel 1900 B25 260 0 74 4.33 13.55 160 3623 17.3 35.4 5 2.8 11 AT&T QUINTEL QS4658-3 02DT Panel 700 B29 140 0 64 4.33 10.25 80 847 115.5 13.1 5 2.8 11 AT&T QUINTEL QS4658-3 02DT Panel 2300 B30 140 0 57 4.33 13.85 100 2427 115.5 13.1 5 2.8 12 AT&T KATHREIN 742264V01 00DT Panel 850 B5 140 0 67.7 4.38 11.95 80 1253 118.2 15.2 5 2.8 13 AT&T COMMSCOPE SBNHH-1D65A 00DT Panel 2100 B66 140 0 62 4.63 14.7 240 7083 121.2 16.7 5 2.7 14 AT&T QUINTEL QS4658-3E 02DT Panel 700 B12 140 0 69 4.33 10.15 80 828 124.4 18 5 2.8 14 AT&T QUINTEL QS4658-3E 02DT Panel 850 B5 140 0 65 4.33 11.15 80 1043 124.4 18 5 2.8 14 AT&T QUINTEL QS4658-3E 02DT Panel 1900 B25 140 0 74 4.33 13.55 160 3623 124.4 18 5 2.8 15 AT&T ERICSSON SON_AIR5331_B260_TB Panel 39000 n260 140 0 4 2 26.89 1.2 610 126.1 23 5 4 16 AT&T ERICSSON SON_AIR5331_B260_TB Panel 39000 n260 230 0 4 2 26.89 1.2 610 28.6 15 5 4 Note: Waterford Consultants, LLC has assumed transmission parameters for Unknown RF emitters based on similar installations found at other radio communications sites. Generic antenna models have been used where existing antenna part numbers or radiation patterns are not available. The frequencies presented in this table may have been assumed in order to represent the approximate band of operation and to support a worst-case calculation of power density. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 7 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 4 Site Photographs Site Overview Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 8 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Access Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 9 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Alpha Sector Antennas #1 through #5 (Front) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 10 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Alpha Sector Antennas #1 through #2 (Back) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 11 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Alpha Sector Antennas #1 through #5 (Side) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 12 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Alpha Sector Antennas #1 through #5 (Side) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 13 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Beta Sector Antennas #6 through #10 (Front) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 14 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Beta Sector Antennas #6 through #10 (Back) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 15 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Beta Sector Antennas #6 through #10 (Side) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 16 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Beta Sector Antennas #6 through #10 (Side) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 17 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Gamma Sector Antennas #11 through #15 (Front) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 18 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Gamma Sector Antennas #16 (Front) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 19 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Gamma Sector Antennas #11 through #15 (Back) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 20 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. AT&T Mobility Gamma Sector Antennas #11 through #15 (Side) Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 21 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Rooftop Overview South Facing West Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 22 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Rooftop Overview West Facing East Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 23 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Rooftop Overview East Facing West Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 24 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Rooftop Overview North Facing East Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 25 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 5 Emission Measurements and Discussion 5.1 On-Site Measurements The site was surveyed at approximately 8:00 AM on January 28, 2022. Radiation meter and probe were used to record power density levels. The field technician physically walked all accessible areas of the site, including areas, where accessible and applicable, around the antenna mounts. Measurement procedures are consistent with FCC and Narda procedures, regarding the location of the probe to the RF source and making slow sweeping motions over the area a person would occupy. The above site map shows the measurement locations Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 26 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Measurement Readings are Spatial Average and Maximum as MPE % of the General Public Limits Loc# Site Reading Loc# Site Reading Avg Max Avg Max 1 0.1210% 0.9730% 2 0.0390% 0.4325% 3 0.2250% 1.4775% 4 0.2545% 2.5590% 5 0.4395% 11.3900% 6 10.1250% 28.2000% 7 59.5000% 178.8500% 8 38.1350% 145.7000% 9 5.5900% 60.5000% 10 12.2900% 19.7000% 11 8.1000% 16.2150% 12 6.1550% 15.6600% 13 0.4945% 1.4365% 14 1.1330% 4.6495% 15 0.2305% 1.0925% 16 0.2840% 0.9365% 17 0.2370% 0.9365% 18 2.1340% 60.1500% 19 46.7500% 210.1000% 20 33.8850% 69.1000% 21 21.2150% 49.8850% 22 1.1245% 8.1200% 23 2.1750% 21.3550% 24 1.4590% 16.4400% 25 3.3390% 11.5200% 26 3.1220% 7.0600% 27 0.5450% 2.7840% 28 0.3215% 2.2800% 29 0.6945% 1.7660% 30 1.0425% 1.9725% 31 0.9260% 2.9935% 32 1.1810% 2.0130% 33 1.2940% 2.2820% 34 3.6810% 135.8000% 35 6.0150% 111.8500% 36 20.6550% 85.8000% 37 15.8550% 97.6000% 38 5.5650% 10.6050% 39 3.9080% 5.1200% 40 3.0855% 4.5800% 41 1.0665% 2.8325% 42 1.6275% 2.4740% 43 0.5460% 2.1940% 44 0.4590% 1.0945% 45 1.6405% 2.1755% 46 0.6355% 1.7405% 47 0.7075% 1.4995% 48 1.6070% 2.0510% 49 0.5610% 1.5905% 50 0.9085% 1.4885% 51 0.6355% 2.0570% 52 0.8590% 1.8890% 53 0.6080% 1.5555% 54 0.9390% 1.4655% Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 27 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 5.2 Predicted Emission Levels and Discussion The following plots show the spatial average predicted power density levels in the reference plane indicated as a percentage of the General Public Limits. Please note that 100% of the General Public Limits corresponds to 20% of the Occupational Limits. The reference plane for the plot is the roof level, as indicated in the caption. For example, “Avg 10 to 16 Feet” refers to the spatial average predicted power density level between 10 and 16 feet above the main level. Plots are produced for each accessible level. Levels that are not accessible will not be shown. Only accessible areas in a plot are relevant. Areas not accessible or in free space, off the edge of a roof or equipment penthouse, do not affect compliance. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 28 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 5.2.1 Predictive AT&T Mobility’s RF Contribution Only on the Site The reference plane for the plot is the main level 52 ft. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 29 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. The reference plane for the plot is the main level 52 ft. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 30 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. The reference plane for the plot is the lower level 38 ft. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 31 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. The reference plane for the plot is the lower level 38 ft. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 32 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. The reference plane for the plot is the antenna level 54 ft. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 33 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 6 Statement of Compliance 6.1 Statement of AT&T Mobility Compliance At the time of our audit, AT&T Mobility is in compliance with FCC Radiofrequency Radiation Exposure Limits. No action is required. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 34 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 6.2 Compliance Requirement Diagram (Alpha Sector) In Compliance (Existing) AT&T Mobility Alpha Sector Caution 2 signs required in front and behind the sector on screen wall AND Caution 2 signs required on barrier posts Materials – 6 Post, 9 Caution 2 Signs, Roughly 22’ Chain. Barriers Space – 4’x8’x10’ **Barriers must be built a minimum of 6 feet away from unprotected roof edge. Minimum of 36” of parapet wall Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 35 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 6.3 Compliance Requirement Diagram (Beta Sector) In Compliance (Existing) AT&T Mobility Beta Sector Caution 2 signs required in front and behind the sector on screen wall AND Caution 2 signs required on barrier posts Materials – 16 Post, 13 Caution 2 Signs, Roughly 80’ Chain. Barriers Space – 7’x10’x8’x17’x4’x8’x11’x9’x6’ **Barriers must be built a minimum of 6 feet away from unprotected roof edge. Minimum of 36” of parapet wall Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 36 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 6.4 Compliance Requirement Diagram (Gamma Sector) In Compliance (Existing) AT&T Mobility Gamma Sector Caution 2 signs required in front and behind the sector on screen wall AND Caution 2 signs required on barrier posts Materials – 8 Post, 11 Caution 2 Signs, Roughly 39’ Chain. Barriers Space – 18’x9’x12’ **Barriers must be built a minimum of 6 feet away from unprotected roof edge. Minimum of 36” of parapet wall Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 37 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 7 Appendix A 7.1 Technical Framework The FCC requires licensees to ensure that persons are not exposed to radiofrequency electromagnetic energy power densities in excess of the applicable MPE (Maximum Permissible Exposure) limits. These rules apply to both Occupational Personnel and the General Population. Applicable FCC rules are found at 47 C.F.R. § § 1.1307(b)(3) and 1.1310. The FCC rules define two tiers of permissible exposure differentiated by the situation in which the exposure takes place and/or the status of the individuals who are subject to exposure. General Population / uncontrolled exposure limits apply to those situations in which persons may not be aware of the presence of electromagnetic energy, where exposure is not employment-related, or where persons cannot exercise control over their exposure. Occupational / controlled exposure limits apply to situations in which persons are exposed as a consequence of their employment, have been made fully aware of the potential for exposure, and can exercise control over their exposure. Maximum Permissible Exposure (“MPE”) is defined in OET 65 as being 100% of the exposure limits for the situation or tier of permissible exposure. These limits are listed as follows: Limits for Occupational/Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field (H) (A/m) Power Density (S) (mW/cm2) Averaging Time |E|2, |H|2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f2)* 6 30-300 61.5 0.163 1.0 6 300-1500 -- f/300 6 1500-100,000 -- 5 6 Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field (H) (A/m) Power Density (S) (mW/cm2) Averaging Time |E|2, |H|2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 842/f 2.19/f (180/f2)* 30 30-300 27.5 0.073 0.2 30 300-1500 -- f/1500 30 1500-100,000 -- 1.0 30 f = frequency in MHz *Plane-wave equivalent power density Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 38 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. FCC Limits for Maximum Permissible Exposure (MPE) Plane-wave Equivalent Power Density For any area in excess of 100% General Population MPE, access controls with appropriate RF alerting signage must be put in place and maintained to restrict access to authorized personnel. Subject to other site security requirements, Occupational Personnel trained in RF safety and equipped with personal protective equipment designed for safe work in the vicinity of RF may be granted access. Controls such as physical barriers to entry imposed by locked doors, locked passageways, or other access control mechanisms may be supplemented by alarms that alert the individual and notify site management of a breach in access control. Controls may include administrative policies and procedures requiring personal protective equipment (e.g. RF personal monitor), proof of RF training to obtain site access cards, presentation of appropriate RF awareness training certifications to security personnel or other measures designed to prevent uncontrolled access. RF alerting signs are not necessarily required, and by FCC guidelines, alone do not constitute compliance, posting of the appropriate NOTICE, CAUTION, or WARNING signs at areas of concern is considered good practice. The signs below are examples of signs meeting FCC guidelines. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 39 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. Power density decreases significantly over a short distance from any antenna. Specifically with respect to directional panel antennas, the design, orientation in azimuth and elevation as documented, reasonably precludes potential to exceed MPE limits at any location other than directly in front of the antenna. Areas in front of the antenna that are restricted by barriers, would require climbing or are otherwise beyond the reach of a standing individual of average height are not considered accessible. Analysis or measurement of instantaneous energy levels is performed for use as proof of compliance with FCC rules and regulations applicable to non-occupational persons, those individuals who are not authorized to access portions of the antenna support structure above ground level. To assess time-average exposure for occupational personnel working within secured areas of the site, on the supporting structure, or in Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 40 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. the immediate proximity of the antenna equipment is a separate study requiring detailed ergonomic information. FCC regulations regarding Radiofrequency radiation exposure, expressed in 47 CFR § 1.1310 are further clarified with respect to the value of 5% of exposure limits for the subject transmitters in the following section of 47 CFR § 1.1307 (b): (3) In general, when the guidelines specified in § 1.1310 are exceeded in an accessible area due to the emissions from multiple fixed transmitters, actions necessary to bring the area into compliance are the shared responsibility of all licensees whose transmitters produce, at the area in question, power density levels that exceed 5% of the power density exposure limit applicable to their particular transmitter or field strength levels that, when squared, exceed 5% of the square of the electric or magnetic field strength limit applicable to their particular transmitter. Owners of transmitter sites are expected to allow applicants and licensees to take reasonable steps to comply with the requirements contained In § 1.1307(b) and, where feasible, should encourage co-location of transmitters and common solutions for controlling access to areas where the RF exposure limits contained in § 1.1310 might be exceeded. Following these FCC requirements, predictive modeling has been performed to evaluate power density resulting from client transmitters as a percentage of the power density MPE limit applicable to their transmitters. These results are presented in Section 4. The site should be routinely inspected and this or a similar report updated with any changes to the RF environment including: • Adding new antennas • Removing of any existing antennas • Change in the radiating power or number of RF emitters Waterford Consultants, LLC recommends coordinating with all wireless tenants before performing services in front of or near any transmitting antennas. During these activities, it may be appropriate to utilize Lockout/Tagout Procedures as specified in ATT-002-290-078, “RF Exposure: Responsibilities, Procedures & Guidelines” for scheduled outages to eliminate RF hazards during these activities. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 41 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 8 Appendix B 8.1 Qualifications of Waterford Consultants, LLC With more than 100 team-years of experience, Waterford Consultants, LLC [Waterford] provides technical consulting services to clients in the Radio Communications and antenna locating industry. Waterford retains professional engineers who are placed in responsible charge of the processes for analysis. Waterford is familiar with 47 C.F.R. § § 1.1307(b)(3) and 1.1310 along with the general rules, regulations, and policies of the FCC. Waterford work processes incorporate all specifications of FCC Office of Engineering and Technology, Bulletin 65 (“OET65”), from the website: www.fcc.gov/oet/rfsafety and follow criteria detailed in 47 CFR § 1.1310 “Radiofrequency radiation exposure Limits”. Within the technical and regulatory framework detailed above, Waterford developed tools according to recognized and generally accepted good engineering practices. Permissible exposure limits are band specific, and the Waterford computerized modeling tools correctly calculate permissible exposure based on the band(s) specified in the input data. Only clients and client representatives are authorized to provide input data through the Waterford web portal. In securing that authorization, clients and client representatives attest to the accuracy of all input data. Waterford Consultants, LLC attests to the accuracy of the engineering calculations computed by those modeling tools. Furthermore, Waterford attests that the results of those engineering calculations are correctly summarized in this report. Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 42 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 9 Appendix C 9.1 RoofMaster™ RoofMaster™ is the software package that Waterford Consultants, LLC created to model RF environments associated with multiple emitters where the potential exists for human exposure. Based on the computational guidelines set forth in OET Bulletin 65 from the Federal Communications Commission (FCC), RoofMaster™ considers the operating parameters of specified RF sources to predict the overall Maximum Permissible Exposure possible at a given location. These theoretical results represent worst-case predictions as emitters are assumed to be operating at 100% duty cycle. From the FCC document: “The revised OET Bulletin 65 has been prepared to provide assistance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to radiofrequency (RF) fields adopted by the Federal Communications Commission (FCC). The bulletin offers guidelines and suggestions for evaluating compliance.” http://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet65/oet65.pdf Site Name: Central Cupertino Site FA: 10095833 RF-22-0036 Page 43 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2017 AT&T Intellectual property. All rights reserved. 10 Appendix D 10.1 Statement of Limiting Conditions Waterford Consultants, LLC field personnel have visited the site and collected only data with regard to the MPE environment. Waterford Consultants, LLC will not be responsible for matters of a legal nature that affect the site or property. The property has been analyzed under the premise that it is under responsible ownership and management and our client has the legal right to conduct business at this facility. Due to the complexity of some wireless sites, Waterford Consultants, LLC has created this report utilizing best industry practices and due diligence. Waterford Consultants, LLC cannot be held accountable or responsible for anomalies or discrepancies due to actual site conditions (i.e., mislabeling of antennas or equipment, inaccessible cable runs, inaccessible antennas or equipment, etc.) or information or data supplied by Wireless Carrier, the site manager, or their affiliates, subcontractors or assigns. Waterford Consultants, LLC has provided the results of a computer-generated model in this MPE Site Compliance Report to show approximate dimensions of the site, and the model results is included to assist the reader of the compliance report to visualize the site area, and to provide supporting documentation for Waterford Consultants, LLC recommendations. Waterford Consultants, LLC will not be responsible for any existing conditions or for any engineering or testing that might be required to discover whether adverse safety conditions exist. Because Waterford Consultants, LLC is not an expert in the field of mechanical engineering or building maintenance, this MPE Site Compliance Report must not be considered a structural or physical engineering report. Waterford Consultants, LLC obtained information used in this MPE Site Compliance Report from sources that Waterford Consultants, LLC considers reliable and believes them to be true and correct. Waterford Consultants, LLC does not assume any responsibility for the accuracy of such items that were furnished by other parties.