193868.WestcupertinoNCAP190435.JxReport.100120Compliance Statement
Based on information provided by Verizon and predictive modeling, the West Cupertino Nca-P-190435
installation proposed by Verizon will be compliant with Radiofrequency Radiation Exposure Limits of 47 C.F.R.
§§ 1.1307(b)(3) and 1.1310. The proposed operation will not expose members of the General Public to
hazardous levels of RF energy at ground level or in adjacent buildings. As predicted RF power densities will
not exceed the FCC General Population limits, no mitigation action is needed to achieve or maintain
compliance.
Certification
I, David C. Cotton, Jr., am the reviewer and approver of
this report and am fully aware of and familiar with the
Rules and Regulations of both the Federal
Communications Commissions (FCC) and the
Occupational Safety and Health Administration (OSHA)
with regard to Human Exposure to Radio Frequency
Radiation, specifically in accordance with FCCβs OET
Bulletin 65. I have reviewed this Radio Frequency
Exposure Assessment report and believe it to be both
true and accurate to the best of my knowledge.
General Summary
The compliance framework is derived from the Federal Communications Commission (FCC) Rules and
Regulations for preventing human exposure in excess of the applicable Maximum Permissible Exposure
(βMPEβ) limits. At any location at this site, the power density resulting from each transmitter may be expressed
as a percentage of the frequency-specific limits and added to determine if 100% of the exposure limit has been
exceeded. 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. Based on the criteria for these classifications, the FCC General
Population limit is considered to be a level that is safe for continuous exposure time. The FCC General
Population limit is 5 times more restrictive than the Occupational limits.
Radio Frequency Emissions Compliance Report For Verizon
Site Name: West Cupertino NCA-P-190435 Site Structure Type: Monopine
Address: 22475 Rancho Deep Cliff Drive Latitude: 37.310778
Cupertino, CA 95014 Longitude: -122.069278
Report Date: October 1, 2020 Project: Modification
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Table 1: FCC Limits
Frequency
(MHz)
Limits for General Population/ Uncontrolled Exposure Limits for Occupational/ Controlled Exposure
Power Density
(mW/cm2)
Averaging Time
(minutes)
Power Density
(mW/cm2)
Averaging Time
(minutes)
30-300 0.2 30 1 6
300-1500 f/1500 30 f/300 6
1500-100,000 1.0 30 5.0 6
f=Frequency (MHz)
In situations where the predicted MPE exceeds the General Population threshold in an accessible area as a
result of emissions from multiple transmitters, FCC licensees that contribute greater than 5% of the aggregate
MPE share responsibility for mitigation.
Based on the computational guidelines set forth in FCC OET Bulletin 65, Waterford Consultants, LLC has
developed software to predict the overall Maximum Permissible Exposure possible at any location given the
spatial orientation and operating parameters of multiple RF sources. The power density in the Far Field of an
RF source is specified by OET-65 Equation 5 as follows:
ππ= πΈπΈπΈπΈπΈπΈπΈπΈ4β ππβ πΈπΈ2 (mW/cm2)
where EIRP is the Effective Radiated Power relative to an isotropic antenna and R is the distance between
the antenna and point of study. Additionally, consideration is given to the manufacturersβ horizontal and
vertical antenna patterns as well as radiation reflection. At any location, the predicted power density in the
Far Field is the spatial average of points within a 0 to 6-foot vertical profile that a person would occupy. Near
field power density is based on OET-65 Equation 20 stated as
ππ=οΏ½180πππ΅π΅π΅π΅οΏ½β 100 β ππππππππβ π π β β (mW/cm2)
where Pin is the power input to the antenna, ΞΈBW is the horizontal pattern beamwidth and h is the aperture
length.
Some antennas employ beamforming technology where RF energy allocated to each customer device is
dynamically directed toward their location. In the analysis presented herein, predicted exposure levels are
based on all beams at full utilization (i.e. full power) simultaneously focused in any direction. As this condition
is unlikely to occur, the actual power density levels at ground and at adjacent structures are expected to be
less that the levels reported below. These theoretical results represent worst-case predictions as all RF
emitters are assumed to be operating at 100% duty cycle.
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. Signage must be posted to be
visible upon approach from any direction to provide notification of potential conditions within these areas.
Subject to other site security requirements, occupational personnel should be trained in RF safety and
equipped with personal protective equipment (e.g. RF personal monitor) designed for safe work in the vicinity
of RF emitters. Controls such as physical barriers to entry imposed by locked doors, hatches and ladders or
other access control mechanisms may be supplemented by alarms that alert the individual and notify site
management of a breach in access control. Waterford Consultants, LLC recommends that any work activity
in these designated areas or in front of any transmitting antennas be coordinated with all wireless tenants.
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7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Analysis
Waterford Consultants, LLC field personnel visited the site on September 23, 2020 during business hours and
collected data with regard to the RF environment. All accessible areas of the site were inspected.
Measurement collection was performed using Narda Radiation meter NBM 550 and broadband probe EA-5091
(300 kHz to 50 GHz) and was consistent with FCC and Narda procedures, regarding the location of the probe
to the RF source and making slow sweeping motions over the area that a person would occupy. Power density
values were recorded as a percentage of the FCC Occupational limits. In using this broadband instrument, the
results represent the cumulative contributions of all RF sources at the measurement locations. The maximum
cumulative power density reading was 0.5833% of the FCC Occupational limits (2.9165% of the General
Population limits). Measurement locations and tabulated results are presented in Appendix B.
Verizon proposes the following installation at this location:
β’ SWAP EXISTING 700 RADIUS WITH 4449 RADIOS PER SECTOR
β’ ADD LTE 850 CARRIER
The antennas are mounted on a 70-foot Monopole with centerlines 62 feet above ground level. Proposed
antenna operating parameters are listed in Appendix A. Other appurtenances such as GPS antennas, RRUs
and hybrid cable below the antennas are not sources of RF emissions. Panel antennas have been installed
at this site by other wireless operators. Operating parameters for these antennas considered in this analysis
are also listed in Appendix A.
Figure 1: Antenna Locations
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7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Power density decreases significantly with distance from any antenna. The panel-type antennas to be
employed at this site are highly directional by design and the orientation in azimuth and mounting elevation,
as documented, serves to reduce the potential to exceed MPE limits at any location other than directly in front
of the antennas. For accessible areas at ground level, the maximum predicted power density level resulting
from all Verizon operations is 1.0567% of the FCC General Population limits. Based on the operating
parameters in Appendix A, the cumulative power density level at this location from all antennas is 1.6147% of
the FCC General Population limits. Incident at adjacent buildings depicted in Figure 1, the maximum predicted
power density level resulting from all Verizon operations is 9.565% of the FCC General Population limits.
Based on the operating parameters in Appendix A, the cumulative power density level at this location from all
antennas is 11.208% of the FCC General Population limits. The proposed operation will not expose members
of the General Public to hazardous levels of RF energy at ground level or in adjacent buildings. As predicted
RF power densities will not exceed the FCC General Population limits, no mitigation action is needed to achieve
or maintain compliance.
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7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Appendix A: Operating Parameters Considered in this Analysis
Antenna #: Carrier: Manufacturer Pattern: Band:
Mech
Az
(deg):
Mech
DT
(deg):
H BW
(deg):
Length
(ft):
TPO
(W): Channels:
Loss
(dB):
Gain
(dBd):
ERP
(W):
EIRP
(W):
Rad
Center
(ft):
1 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 66 4.2 18 3 0 11.691 797 1308 62
2 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 71 4.2 40 2 0 10.789 959 1574 62
2 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 66 4.2 40 2 0 11.29 1077 1766 62
3 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 71 4.2 40 2 0 10.789 959 1574 62
3 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 66 4.2 40 2 0 11.29 1077 1766 62
4 Verizon COMMSCOPE Panel < 6 GHz Licensed 20 0 59 4.2 60 2 0 15.151 3929 6446 62
5 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 66 4.2 18 3 0 11.691 797 1308 62
6 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 71 4.2 40 2 0 10.869 977 1603 62
6 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 66 4.2 40 2 0 11.426 1111 1823 62
7 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 71 4.2 40 2 0 10.869 977 1603 62
7 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 66 4.2 40 2 0 11.426 1111 1823 62
8 Verizon COMMSCOPE Panel < 6 GHz Licensed 110 0 59 4.2 60 2 0 15.114 3896 6391 62
9 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 66 4.2 18 3 0 12.02 860 1411 62
10 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 71 4.2 40 2 0 11.357 1093 1794 62
10 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 66 4.2 40 2 0 11.887 1235 2027 62
11 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 71 4.2 40 2 0 11.357 1093 1794 62
11 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 66 4.2 40 2 0 11.887 1235 2027 62
12 Verizon COMMSCOPE Panel < 6 GHz Licensed 210 0 59 4.2 60 2 0 15.01 3803 6240 62
13 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 48 4 30 2 0 12.5 1067 1750 52
13 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 43 4 40 1 0 13.8 960 1574 52
14 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 43 4 60 2 0 13.8 2879 4723 52
14 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 42 6 40 4 0 17.8 9641 15817 52
15 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 42 6 40 4 0 18.2 10571 17343 52
15 AT&T COMMSCOPE Panel < 6 GHz Licensed 0 0 39 6 25 4 0 18.4 6918 11350 52
16 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 48 4 30 2 0 12.5 1067 1750 52
16 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 43 4 40 1 0 13.8 960 1574 52
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7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Antenna #: Carrier: Manufacturer Pattern: Band:
Mech
Az
(deg):
Mech
DT
(deg):
H BW
(deg):
Length
(ft):
TPO
(W): Channels:
Loss
(dB):
Gain
(dBd):
ERP
(W):
EIRP
(W):
Rad
Center
(ft):
17 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 43 4 60 2 0 13.8 2879 4723 52
17 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 42 6 40 4 0 17.8 9641 15817 52
18 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 42 6 40 4 0 18.2 10571 17343 52
18 AT&T COMMSCOPE Panel < 6 GHz Licensed 120 0 39 6 25 4 0 18.4 6918 11350 52
19 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 48 4 30 2 0 12.5 1067 1750 52
19 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 43 4 40 1 0 13.8 960 1574 52
20 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 43 4 60 2 0 13.8 2879 4723 52
20 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 42 6 40 4 0 17.8 9641 15817 52
21 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 42 6 40 4 0 18.2 10571 17343 52
21 AT&T COMMSCOPE Panel < 6 GHz Licensed 240 0 39 6 25 4 0 18.4 6918 11350 52
Colocated antenna parameters based on industry standards
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7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Appendix A: Field Measurement Locations and Results
Survey Date: 9/23/2020
Measurement Readings are Spatial Average and Maximum as MPE % of FCC Occupational Limit
Loc#
Site Reading
Loc#
Site Reading
Avg Max Avg Max
1 0.0452% 0.1081% 2 0.0803% 0.2080%
3 0.0681% 0.1681% 4 0.0182% 0.2378%
5 0.3463% 0.5247% 6 0.2910% 0.5031%
7 0.3898% 0.5569% 8 0.3543% 0.5117%
9 0.3922% 0.6967% 10 0.5833% 0.7577%