15U21863-E2V2 FCC RF EXPOSURE REPORT Final

FCC ID: A4RGFRG250

RF Exposure Info

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FCCID_3192926

RF EXPOSURE REPORT Report No. : 15U21863-E2V2 Applicant : GOOGLE 1600 AMPHITEATRE PARKWAY MOUNTAIN VIEW, CA 94043, U.S.A Model : GFRG250 FCC ID : A4RGFRG250 EUT Description : STORAGE NETWORK BOX II, 2TB HD, WIFI AP Test Standard(s) : FCC Part 1 Subpart I FCC Part 2 Subpart J Date of Issue: October 7, 2016 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 Revision History Issue Rev. Date Revisions Revised By V1 6/16/2016 Initial Issue --- V2 10/7/16 Updates: sections 5.3 10/7/2016 Page 2 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 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. EQUATIONS................................................................................................................ 7 5.3. LIMITS AND IC EXEMPTION ...................................................................................... 9 6. RF EXPOSURE RESULTS ................................................................................................10 Page 3 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 1. ATTESTATION OF TEST RESULTS COMPANY NAME: GOOGLE 1600 AMPHITEATRE PARKWAY MOUNTAIN VIEW, CA 94043, U.S.A EUT DESCRIPTION: STORAGE NETWORK BOX II, 2TB HD, WIFI AP MODEL: GFRG250 SERIAL NUMBER: BFAFSJ1538E0015 APPLICABLE STANDARDS STANDARD TEST RESULTS FCC PART 1 SUBPART I & PART 2 SUBPART J Pass INDUSTRY CANADA RSS 102 ISSUE 3 Pass 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: Calculated By: FRANCISCO DE ANDA CLIFFORD SUSA CONSUMER TECHNOLOGY DIVISION CONSUMER TECHNOLOGY DIVISION PROJECT MANAGER TEST ENGINEER UL Verification Services Inc. UL Verification Services Inc. Page 4 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 2. TEST METHODOLOGY All calculations were made in accordance with FCC OET Bulletin 65 Edition 97-01 and IC Safety Code 6 and KDB 447498 D01 General RF Exposure Guidance. 3. REFERENCES All measurements were made as documented in test report from International Certification Corp. document number FA421101-07 Version 01 for operation in the 2.4 GHz band and UL Verification Services Inc. document number 15U21863-E1V1 for operation in the 5 GHz bands. 5GHz bands Output power and Duty cycle data is excerpted from the applicable test reports. 2.4GHz data was excerpted from International Certification Corp. RF exposure report number FA421101-07 Version 01. 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 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 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 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 5.2. 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 7 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 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 8 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 5.3. LIMITS AND IC EXEMPTION FIXED LIMITS 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: •below 1.5 GHz and the maximum e.i.r.p. of the device is equal to or less than 2.5 W; •at or above 1.5 GHz and the maximum e.i.r.p. of the device is equal to or less than 5 W. Page 9 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 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. Power levels include tolerance of 1.5 dB for 2.4 GHz band and 0.75 dB for 5 GHz Bands. (MIMO and/or Colocated transmitters all with same Power Density limit, MPE distance > 20 cm) Distance calculations -based on highest average conducted power plus manufacturing tolerance Multiple chain or colocated transmitters Band Mode Chain FCC IC Output Antenna Duty EIRP Separation for Limit AVGLimit Gain Cycle Distance Power MIMO (mW/cm^2) (W/m^2) (dBm) (dBi) (%) (mW) (cm) 2.4Ghz* WLAN 3TX 29.57 5.69 98.4 3302.0 5 GHz** WLAN 4TX 29.73 6.03 82.9 3122.9 Combined 1.00 10.0 6424.9 22.62 Power Density calculations -based on minimum distance separation 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) 2.4Ghz* WLAN 3TX 29.57 5.69 98.4 3302.0 5 GHz** WLAN 4TX 29.73 6.03 82.9 3122.9 Combined 23 6424.9 1.000 10.00 *Worst case data for 2.4GHz band. Data from International Certification Corp. RF report number FR421101 Version 01. ** Worse case data for all 5GHz bands. Data from UL Verification Services Inc. report number 15U21863-E1V1 Page 10 of 11 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: 15U21863-E2V2 DATE: October 7, 2016 FCC ID: A4RGFRG250 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. 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 various channels and various modes within the specific bands. 4) The antenna gain in the tables above is the maximum antenna gain among various channels within the specified band and modes that yielded highest power. END OF REPORT Page 11 of 11 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: 2019-09-26 14:31:33
Document Modified: 2019-09-26 14:31:33
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