EME_Report_HWY280TantauNCAP119572.09.18.2020signedCompliance Statement
Based on information provided by Verizon Wireless, field measurements and predictive modeling, the HWY
280 Tantau NCA-P-119572 installation by Verizon Wireless is compliant with Radiofrequency Radiation
Exposure Limits of 47 C.F.R. §§ 1.1307(b)(3) and 1.1310. On-site measurements collected by Verizon
Wireless contractors were found to be below 100% of the FCC General Population Maximum Permissible
Exposure (MPE) limits which is supportive of Waterford’s worst-case predictive analysis. Therefore, the
operations at this location will not expose members of the General Public to hazardous levels of RF energy at
ground level or in adjacent buildings.
Certification
I, David H. Kiser, 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 FCC’s 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
(“MPE”) 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 Wireless
Site Name: HWY 280 Tantau NCA-P-
119572
Site Structure Type: Rooftop
Address: 10335 North Tantau Avenue Latitude: 37.327772
Cupertino, CA 95014 Longitude: -122.006631
Report Date: September 18, 2020 Project: Modification
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 2
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
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:
!= !"#$
%⋅'⋅#! (mW/cm()
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 manufacturers’ 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
!=*180
.)*
/⋅100 ⋅1+,
2 ⋅3 ⋅ℎ (mW/cm()
where Pin is the power input to the antenna, qBW is the horizontal pattern beamwidth and h is the aperture
length.
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.
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 3
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Analysis
Verizon Wireless has installed the following at this location:
• The wireless telecommunication facility is located on a building rooftop.
• The antennas are mounted behind the screen wall on the main roof and connected to the equipment
via coaxial cables.
Antenna operating parameters are listed in Appendix A. Measurement results from the site survey are listed
in Appendix B. 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.
While the ERP for equipment controlled by another operator is not known, the contribution to existing RF levels
at this site by any existing operator is represented in the survey results. Operating parameters for these
antennas considered in this analysis are also listed in Appendix A.
Figure 1: Antenna Locations
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
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 4
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
of the antennas. As shown in Appendix B, measurements collected at accessible areas were found to be
below the FCC General Population limits. Verizon Wireless’ contractors used a broadband probe that provides
cumulative exposure readings that consider all RF Sources.
To account for accessible areas near the antennas, RF alerting signs and indicative markers (paint) have been
posted as depicted in Figure 2.1 and 2.2.
Any work activity in front of transmitting antennas should be coordinated with Verizon Wireless
Figure 2.1: Mitigation Measures
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 5
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Figure 2.2: Mitigation Measures
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 6
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
Cente
r
(ft):
1 Verizon ANTEL HEX454CW0000x-T00 700 0 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
1 Verizon ANTEL HEX454CW0000x-T00 850 0 0 42 3.9 141.6 1 0 13 2825 4635 63.5
1 Verizon ANTEL HEX454CW0000x-T00 2100 0 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
2 Verizon ANTEL HEX454CW0000x-T00 700 0 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
2 Verizon ANTEL HEX454CW0000x-T00 850 0 0 42 3.9 141.6 1 0 13 2825 4635 63.5
2 Verizon ANTEL HEX454CW0000x-T00 2100 0 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
3 Verizon ANTEL HEX454CW0000x-T00 1900 0 0 40 3.9 283.2 1 0 14.9 8753 14360 63.5
4 Verizon ANTEL HEX454CW0000x-T00 700 90 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
4 Verizon ANTEL HEX454CW0000x-T00 850 90 0 42 3.9 141.6 1 0 13 2825 4635 63.5
4 Verizon ANTEL HEX454CW0000x-T00 2100 90 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
5 Verizon ANTEL HEX454CW0000x-T00 700 90 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
5 Verizon ANTEL HEX454CW0000x-T00 850 90 0 42 3.9 141.6 1 0 13 2825 4635 63.5
5 Verizon ANTEL HEX454CW0000x-T00 2100 90 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
6 Verizon ANTEL HEX454CW0000x-T00 1900 90 0 40 3.9 283.2 1 0 14.9 8753 14360 63.5
7 Verizon ANTEL HEX454CW0000x-T00 700 180 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
7 Verizon ANTEL HEX454CW0000x-T00 850 180 0 42 3.9 141.6 1 0 13 2825 4635 63.5
7 Verizon ANTEL HEX454CW0000x-T00 2100 180 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
8 Verizon ANTEL HEX454CW0000x-T00 700 180 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
8 Verizon ANTEL HEX454CW0000x-T00 850 180 0 42 3.9 141.6 1 0 13 2825 4635 63.5
8 Verizon ANTEL HEX454CW0000x-T00 2100 180 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
9 Verizon ANTEL HEX454CW0000x-T00 1900 180 0 40 3.9 283.2 1 0 14.9 8753 14360 63.5
10 Verizon ANTEL HEX454CW0000x-T00 700 270 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
10 Verizon ANTEL HEX454CW0000x-T00 850 270 0 42 3.9 141.6 1 0 13 2825 4635 63.5
10 Verizon ANTEL HEX454CW0000x-T00 2100 270 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
11 Verizon ANTEL HEX454CW0000x-T00 700 270 0 43 3.9 141.6 1 0 11.7 2094 3435 63.5
11 Verizon ANTEL HEX454CW0000x-T00 850 270 0 42 3.9 141.6 1 0 13 2825 4635 63.5
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 7
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
Cente
r
(ft):
11 Verizon ANTEL HEX454CW0000x-T00 2100 270 0 41 3.9 141.6 1 0 15.4 4911 8057 63.5
12 Verizon ANTEL HEX454CW0000x-T00 1900 270 0 40 3.9 283.2 1 0 14.9 8753 14360 63.5
13 AT&T COMMSCOPE NNH4-65A-R6 02DT 700 40 0 74 4.6 40 4 0 10.49 1791 2938 65
13 AT&T COMMSCOPE NNH4-65A-R6 02DT 850 40 0 64 4.6 40 4 0 11.21 2114 3468 65
13 AT&T COMMSCOPE NNH4-65A-R6 02DT 1900 40 0 60 4.6 40 4 0 12.45 2813 4614 65
13 AT&T COMMSCOPE NNH4-65A-R6 02DT 2100 40 0 61 4.6 40 4 0 12.77 3028 4967 65
14 AT&T QUINTEL QS4658-7 02DT 700 40 0 69 4.3 40 2 0 9.95 791 1297 65
14 AT&T QUINTEL QS4658-7 02DT 700 40 0 69 4.3 40 4 0 9.95 1582 2595 65
14 AT&T QUINTEL QS4658-7 02DT 2300 40 0 58 4.3 25 4 0 14.85 3055 5012 65
15 AT&T CCI HPA-33R-BUU-H4-02DT 700 300 0 38 4.2 40 2 0 13.25 1691 2774 65
15 AT&T CCI HPA-33R-BUU-H4-02DT 850 300 0 33 4.2 40 2 0 14.55 2281 3742 65
15 AT&T CCI HPA-33R-BUU-H4-00DT 1900 300 0 33 4.2 40 4 0 15.75 6013 9866 65
16 AT&T CCI HPA-33R-BUU-H4-02DT 700 300 0 38 4.2 40 2 0 13.25 1691 2774 65
16 AT&T CCI HPA-33R-BUU-H4-02DT 850 300 0 33 4.2 40 2 0 14.55 2281 3742 65
16 AT&T CCI HPA-33R-BUU-H4-00DT 2100 300 0 30 4.2 40 4 0 16.55 7230 11861 65
17 AT&T CCI HPA-33R-BUU-H4-02DT 700 300 0 38 4.2 40 2 0 13.25 1691 2774 65
17 AT&T CCI HPA-33R-BUU-H4-00DT 2300 300 0 28 4.2 25 4 0 17.05 5070 8318 65
18 AT&T CCI HPA-33R-BUU-H4-02DT 700 300 0 38 4.2 40 4 0 13.25 3382 5548 65
19 AT&T COMMSCOPE NNH4-65A-R6 02DT 700 225 0 74 4.6 40 4 0 10.49 1791 2938 65
19 AT&T COMMSCOPE NNH4-65A-R6 02DT 850 225 0 64 4.6 40 4 0 11.21 2114 3468 65
19 AT&T COMMSCOPE NNH4-65A-R6 02DT 1900 225 0 60 4.6 40 4 0 12.45 2813 4614 65
19 AT&T COMMSCOPE NNH4-65A-R6 02DT 2100 225 0 61 4.6 40 4 0 12.77 3028 4967 65
20 AT&T QUINTEL QS4658-7 02DT 700 225 0 69 4.3 40 2 0 9.95 791 1297 65
20 AT&T QUINTEL QS4658-7 02DT 700 225 0 69 4.3 40 4 0 9.95 1582 2595 65
20 AT&T QUINTEL QS4658-7 02DT 2300 225 0 58 4.3 25 4 0 14.85 3055 5012 65
21 Sprint RFS APXV9ERR18-C-02DT 850 0 0 80 6 25 4 0 11.9 1549 2541 65
21 Sprint RFS APXV9ERR18-C-00DT 1900 0 0 80 6 45 4 0 14.6 5191 8517 65
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 8
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
Cente
r
(ft):
22 Sprint RFS APXVTM14 ALU-I20
00DT 2500 0 0 65 4.7 20 8 0 15.9 6225 10212 65
23 Sprint RFS APXV9ERR18-C-02DT 850 90 0 80 6 25 4 0 11.9 1549 2541 65
23 Sprint RFS APXV9ERR18-C-00DT 1900 90 0 80 6 45 4 0 14.6 5191 8517 65
24 Sprint RFS APXVTM14 ALU-I20
00DT 2500 90 0 65 4.7 20 8 0 15.9 6225 10212 65
25 Sprint RFS APXV9ERR18-C-02DT 850 270 0 80 6 25 4 0 11.9 1549 2541 65
25 Sprint RFS APXV9ERR18-C-00DT 1900 270 0 80 6 45 4 0 14.6 5191 8517 65
26 Sprint RFS APXVTM14 ALU-I20
00DT 2500 270 0 65 4.7 20 8 0 15.9 6225 10212 65
27 Sprint RFS APXV9ERR18-C-02DT 850 270 0 80 6 25 4 0 11.9 1549 2541 65
27 Sprint RFS APXV9ERR18-C-00DT 1900 270 0 80 6 45 4 0 14.6 5191 8517 65
28 Sprint RFS APXVTM14 ALU-I20
00DT 2500 270 0 65 4.7 20 8 0 15.9 6225 10212 65
29 T-Mobile COMMSCOPE F-65C-R1 02DT 600 20 0 60 8 30 4 0 13.6 2749 4510 65
30 T-Mobile AMPHENOL HEX336CW0000x-T00 700 20 0 36 6.1 30 2 0 13.7 1407 2308 65
30 T-Mobile AMPHENOL HEX336CW0000x-T00 1900 20 0 33 6.1 40 2 0 16.4 3492 5729 65
30 T-Mobile AMPHENOL HEX336CW0000x-T00 2100 20 0 34 6.1 40 2 0 16.7 3742 6139 65
31 T-Mobile COMMSCOPE F-65C-R1 02DT 600 170 0 60 8 30 4 0 13.6 2749 4510 65
32 T-Mobile AMPHENOL HEX336CW0000x-T00 700 170 0 36 6.1 30 2 0 13.7 1407 2308 65
32 T-Mobile AMPHENOL HEX336CW0000x-T00 1900 170 0 33 6.1 40 2 0 16.4 3492 5729 65
32 T-Mobile AMPHENOL HEX336CW0000x-T00 2100 170 0 34 6.1 40 2 0 16.7 3742 6139 65
33 T-Mobile COMMSCOPE F-65C-R1 02DT 600 270 0 60 8 30 4 0 13.6 2749 4510 65
34 T-Mobile AMPHENOL HEX336CW0000x-T00 700 270 0 36 6.1 30 2 0 13.7 1407 2308 65
34 T-Mobile AMPHENOL HEX336CW0000x-T00 1900 270 0 33 6.1 40 2 0 16.4 3492 5729 65
34 T-Mobile AMPHENOL HEX336CW0000x-T00 2100 270 0 34 6.1 40 2 0 16.7 3742 6139 65
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 9
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com
Appendix B: Post Activation On-Site Measurements Summary (Dtech Communications, LLC)
Survey Date: 02/21/20
HWY 280 Tantau NCA-P-119572 Modification 09.18.2020
Page 10
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com