15U20617-E3V1 FCC IC RF EXPOSURE Report.pdf

FCC ID: A4RGFMN100

RF Exposure Info

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FCCID_2752392

      FCC 47 CFR § 2.1093

    RF EXPOSURE REPORT

             FOR

      WIFI ACCESS POINT

  MODEL NUMBER: GFMN100

     FCC ID: A4RGFMN100

REPORT NUMBER: 15U20617-E3V1

ISSUE DATE: SEPTEMBER 8, 2015

         Prepared for
          GOOGLE
 1600 AMPHITEATRE PARKWAY
MOUNTAIN VIEW, CA 94043, U.S.A.

          Prepared by
UL VERIFICATION SERVICES INC.
    47173 BENICIA STREET
  FREMONT, CA 94538, U.S.A.
      TEL: (510) 771-1000
      FAX: (510) 661-0888


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

                                                  Revision History


            Issue
 Rev.       Date             Revisions                                                                  Revised By
  V1        9/8/15           Initial Issue                                                              F. de Anda




                                     Page 2 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                             DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

                                               TABLE OF CONTENTS
1.     ATTESTATION OF TEST RESULTS ................................................................................. 4

2.     TEST METHODOLOGY ..................................................................................................... 5

3.     REFERENCES ................................................................................................................... 5

4.     FACILITIES AND ACCREDITATION ................................................................................. 5

5.     MAXIMUM PERMISSIBLE RF EXPOSURE ....................................................................... 6
     5.1.    FCC RULES ................................................................................................................ 6
     5.2.    IC RULES .................................................................................................................... 7
     5.3.    EQUATIONS................................................................................................................ 8
     5.4.    LIMITS AND IC EXEMPTION .....................................................................................10

6.     RF EXPOSURE RESULTS ................................................................................................11




                                     Page 3 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
     This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100


1. ATTESTATION OF TEST RESULTS
COMPANY NAME:                       GOOGLE
                                    1600 AMPHITEATRE PARKWAY
                                    MOUNTAIN VIEW, CA 94043, U.S.A.

EUT DESCRIPTION:                    WIFI ACCESS POINT

MODEL:                              GFMN100

SERIAL NUMBER:                      BWAFNS1524E0004

DATE TESTED:                        N/A

                                          APPLICABLE STANDARDS
                               STANDARD                                                 TEST RESULTS
                         FCC 47 CFR § 2.1093                                        Exempt from SAR testing
              Published RF exposure KDB procedures



 UL Verification Services Inc. calculated the RF Exposure of the above equipment in
accordance with the requirements set forth in the above standards, using test results reported in
the test report documents referenced below and/or documentation furnished by the applicant.
All indications of Pass/Fail in this report are opinions expressed by UL Verification Services Inc.
based on interpretations of these calculations. The results show that the equipment is capable
of demonstrating compliance with the requirements as documented in this report.

Note: The results documented in this report apply only to the tested sample, under the
conditions and modes of operation as described herein. This document may not be altered or
revised in any way unless done so by UL Verification Services Inc. and all revisions are duly
noted in the revisions section. Any alteration of this document not carried out by UL Verification
Services Inc. will constitute fraud and shall nullify the document. This report must not be used
by the client to claim product certification, approval, or endorsement by NVLAP, NIST, any
agency of the Federal Government, or any agency of any government.

Approved & Released For
UL Verification Services Inc. By:




FRANCISCO DE ANDA
PROJECT LEAD
UL Verification Services Inc.




                                     Page 4 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100


2. TEST METHODOLOGY
All calculations were made in accordance with FCC OET Bulletin 65 Edition 97-01.


3. REFERENCES
All measurements were made as documented in test report 15U20617-E1V1 FCC DTS Report
for operation in the 2.4 GHz band.

Duty cycle data is excerpted from the applicable test reports.

Output power and Antenna gain data is excerpted from product documentation provided by the
applicant.


4. FACILITIES AND ACCREDITATION
The test sites and measurement facilities used to collect data are located at 47173 Benicia
Street, Fremont, California, USA.

UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0. The full
scope of accreditation can be viewed at http://ts.nist.gov/standards/scopes/2000650.htm.




                                     Page 5 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

5. MAXIMUM PERMISSIBLE RF EXPOSURE
   5.1.          FCC RULES
§1.1310 The criteria listed in Table 1 shall be used to evaluate the environmental impact of
human exposure to radio-frequency (RF) radiation as specified in §1.1307(b), except in the case
of portable devices which shall be evaluated according to the provisions of §2.1093 of this
chapter.




                                     Page 6 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

   5.2.          IC RULES
IC Safety Code 6, Section 2.2.1 (a) A person other than an RF and microwave exposed worker
shall not be exposed to electromagnetic radiation in a frequency band listed in Column 1 of
Table 5, if the field strength exceeds the value given in Column 2 or 3 of Table 5, when
averaged spatially and over time, or if the power density exceeds the value given in Column 4 of
Table 5, when averaged spatially and over time.




                                     Page 7 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

   5.3.          EQUATIONS
POWER DENSITY

Power density is given by:

S = EIRP / (4 * Pi * D^2)

Where

S = Power density in mW/cm^2
EIRP = Equivalent Isotropic Radiated Power in mW
D = Separation distance in cm

Power density in units of mW/cm^2 is converted to units of W/m^2 by multiplying by 10.


DISTANCE

Distance is given by:

D = SQRT (EIRP / (4 * Pi * S))

Where

D = Separation distance in cm
EIRP = Equivalent Isotropic Radiated Power in mW
S = Power density in mW/cm^2


SOURCE-BASED DUTY CYCLE

Where applicable (for example, multi-slot cell phone applications) a duty cycle factor may be
applied.

Source-based time-averaged EIRP = (DC / 100) * EIRP

Where

DC = Duty Cycle in %, as applicable
EIRP = Equivalent Isotropic Radiated Power in W




                                     Page 8 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

MIMO AND COLOCATED TRANSMITTERS (IDENTICAL LIMIT FOR ALL TRANSMITTERS)

For multiple chain devices, and colocated transmitters operating simultaneously in frequency
bands where the limit is identical, the total power density is calculated using the total EIRP
obtained by summing the EIRP (in linear units) of each transmitter.

Total EIRP = (EIRP1) + (EIRP2) + ... + (EIRPn)

where

EIRPx = Source-based time-averaged EIRP of chain x or transmitter x

The total EIRP is then used to calculate the Power Density or the Distance as applicable.


MIMO AND COLOCATED TRANSMITTERS

For multiple colocated transmitters operating simultaneously in frequency bands where different
limits apply:

The Power Density at the specified separation distance is calculated for each transmitter chain
or transmitter.

The fraction of the exposure limit is calculated for each chain or transmitter as
(Power Density of chain or transmitter) / (Limit applicable to that chain or transmitter).

The fractions are summed.

Compliance is established if the sum of the fractions is less than or equal to one.




                                     Page 9 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

   5.4.          LIMITS AND IC EXEMPTION
VARIABLE LIMITS

For mobile radio equipment operating in the cellular phone band, the lowest power density limit
is calculated using the lowest frequency:

824 MHz / 1500 = 0.55 mW/cm^2 (FCC)
824 MHz / 150 = 5.5 W/m^2 (IC).


FIXED LIMITS

For operation in the PCS band, the 2.4 GHz band and the 5 GHz bands:

From FCC §1.1310 Table 1 (B), the maximum value of S = 1.0 mW/cm^2
From IC Safety Code 6, Section 2.2 Table 5 Column 4, S = 10 W/m^2


INDUSTRY CANADA EXEMPTION

RSS-102 Clause 2.5.2 RF exposure evaluation is required if the separation distance between
the user and the device’s radiating element is greater than 20 cm, except when the device
operates as follows:


• at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p.
of the device is equal to or less than 1.31 x 10^-2 ƒ^0.6834 W (adjusted for tune-up tolerance),
where ƒ is in MHz;




                                     Page 10 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

6. RF EXPOSURE RESULTS
In the table(s) below, Power and Gain are entered in units of dBm and dBi respectively and
conversions to linear forms are used for the calculations.

Multiple chain or colocated transmitters
 Band        Mode Chain Separation                   Output Antenna Duty               EIRP FCC Power              IC
                            for      Distance         AVG         Gain       Cycle                Density        Power
                                                                                                                 Density
                                                     Power
                          MIMO          (cm)         (dBm)         (dBi)       (%)     (mW) (mW/cm^2) (W/m^2)
 2.4 GHz       WLAN          1                        21.76        3.70       97.5     342.9
 2.4 GHz  WLAN               2                        21.13        2.50       97.5     225.0
        Combined                         20                                            567.9        0.113          1.13



The device operates above 300 MHz and below 6 GHz with a maximum EIRP less than or
equal to 2.7 Watts in 2.4GHz band with a minimum separation distance of 20 cm, therefore it is
exempt from routine RF Exposure Evaluation under RSS-102.




                                     Page 11 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.


REPORT NO: 15U20617-E3V1                                                                DATE: SEPTEMBER 8, 2015
FCC ID: A4RGFMN100

Notes:

   1) For MPE the new KDB 447498 requires the calculations to use the maximum rated
      power; that power should be declared by the manufacturer, and should not be lower than
      the measured power. If the power has a tolerance then we also need to check that the
      measured power is within the tolerance.

   2) The manufacturer configures output power so that the maximum power, after accounting
      for manufacturing tolerances, will never exceed the maximum power level measured.

   3) The output power in the tables above is the maximum power per chain among various
      channels and various modes within the specific band.

   4) The antenna gain in the tables above is the maximum antenna gain among various
      channels within the specified band.



                                             END OF REPORT




                                     Page 12 of 12
UL VERIFICATION SERVICES INC.                                        FORM NO: CCSUP4701I
47173 BENICIA STREET, FREMONT, CA 94538, USA     TEL: (510) 771-1000    FAX: (510) 661-0888
   This report shall not be reproduced except in full, without the written approval of . UL Verification Services Inc.



Document Created: 2019-11-20 00:01:57
Document Modified: 2019-11-20 00:01:57

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