MPE Test Report

FCC ID: A4RAC-1304

RF Exposure Info

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FCCID_3357317

seorroncas. RF Exposure Evaluation Report Report No. : FA690910—03 Project No: CB10603381 RF Exposure Evaluation Report Equipment : Dual band WiFi Router Brand Name : Google Model No. : AC—1304 FCC ID : AARAC—1304 Standard : 47 CFR Part 21091 Applicant : Google Inc. 1600 Amphitheater Parkway, Mountain View, CA 94043 Manufacturer : Wistron NeWeb Corporation 20 Park Ave. II, Hsinchu Science Park, Hsinchu 308, Taiwan The product sample received on Sep. 14, 2016 and completely tested on Mar. 22, 2017. We, SPORTON, would like to declare that the tested sample has been evaluated in accordance with 47 CFR Part 2.1091, and pass the limit. Without written approval of SPORTON INTERNATIONAL INC., the test report shall not be reproduced except in full. m @;Mz\ \‘\\\||n/,,/" LA L1d xo.Allky——«4 t I j / — = ~ Cliff Chang 2M/f.n.\\\n\“\ 1190 SPORTON INTERNATIONAL INC. SPORTON INTERNATIONAL INC. Page No. : 1 of6 TEL : 886—3—327—3456 Report Version : Rev. 01 FAX : 886—3—327—0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC—1304

RF Exposure Evaluation Report Report No. : FA690910-03 TABLE OF CONTENTS 1 GENERAL DESCRIPTION ....................................................................................................................4 1.1 EUT General Information .......................................................................................................................4 1.2 Table for Multiple source Listing ............................................................................................................4 1.3 Testing Location .....................................................................................................................................4 2 MAXIMUM PERMISSIBLE EXPOSURE ...............................................................................................5 2.1 Limit of Maximum Permissible Exposure ...............................................................................................5 2.2 MPE Calculation Method........................................................................................................................5 2.3 Calculated Result and Limit....................................................................................................................6 PHOTOGRAPHS OF EUT V01 SPORTON INTERNATIONAL INC. Page No. : 2 of 6 TEL : 886-3-327-3456 Report Version : Rev. 01 FAX : 886-3-327-0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC-1304

RF Exposure Evaluation Report Report No. : FA690910-03 REVISION HISTORY REPORT NO. VERSION DESCRIPTION ISSUED DATE FA690910-03 Rev. 01 Initial issue of report Mar. 29, 2017 SPORTON INTERNATIONAL INC. Page No. : 3 of 6 TEL : 886-3-327-3456 Report Version : Rev. 01 FAX : 886-3-327-0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC-1304

RF Exposure Evaluation Report Report No. : FA690910-03 1 General Description 1.1 EUT General Information RF General Information Frequency Operating Evaluation Range Frequency Modulation Type Mode (MHz) (MHz) 802.11b: DSSS (DBPSK, DQPSK, CCK) 802.11g/n: OFDM (BPSK, QPSK, 16QAM, 64QAM) 2.4GHz WLAN 2400-2483.5 2412-2462 802.11ac: OFDM (BPSK, QPSK, 16QAM, 64QAM, 256QAM) 802.11a/n: OFDM (BPSK, QPSK, 16QAM, 64QAM) 5150-5250 5180-5240 5GHz WLAN 802.11ac: OFDM (BPSK, QPSK, 16QAM, 64QAM, 5725-5850 5745-5825 256QAM) BR / EDR: FHSS (GFSK / π/4-DQPSK / 8DPSK) Bluetooth 2400-2483.5 2402-2480 LE: DSSS (GFSK) 1.2 Table for Multiple source Listing The EUT has three types, which are identical to each other in all aspects except for the following table: EUT PHY U2 EUT 1 Main source Second source (samsung) EUT 2 Second source Second source (samsung) EUT 3 Main source Main source (toshiba) The PHY and U2 detail information as below: Source Model Name PHY Main source QCA8072 PHY Second source QCA8075 U2 main source Toshiba EMMC, THGBMDG5D1LBAIT U2 second source Samsung EMMC, KLM4G1FEPD-B031 1.3 Testing Location Testing Location HWA YA ADD : No. 52, Hwa Ya 1st Rd., Kwei-Shan Hsiang, Tao Yuan Hsien, Taiwan, R.O.C. TEL : 886-3-327-3456 FAX : 886-3-327-0973 JHUBEI ADD : No.8, Lane 724, Bo-ai St., Jhubei City, HsinChu County 302, Taiwan, R.O.C. TEL : 886-3-656-9065 FAX : 886-3-656-9085 SPORTON INTERNATIONAL INC. Page No. : 4 of 6 TEL : 886-3-327-3456 Report Version : Rev. 01 FAX : 886-3-327-0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC-1304

RF Exposure Evaluation Report Report No. : FA690910-03 2 Maximum Permissible Exposure 2.1 Limit of Maximum Permissible Exposure (A) Limits for Occupational / Controlled Exposure Averaging Time Frequency Range Electric Field Magnetic Field Power Density (S) |E|²,|H|² or S (MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²) (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 (B) Limits for General Population / Uncontrolled Exposure Averaging Time Frequency Range Electric Field Magnetic Field Power Density (S) |E|²,|H|² or S (MHz) Strength (E) (V/m) Strength (H) (A/m) (mW/ cm²) (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz ; *Plane-wave equivalent power density 2.2 MPE Calculation Method The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calculate the Power Density: 30  P  G E2 E (V/m) ＝ Power Density: Pd (W/m²) ＝ d 377 E ＝ Electric field (V/m) P ＝ RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 30  P  G 377  d 2 SPORTON INTERNATIONAL INC. Page No. : 5 of 6 TEL : 886-3-327-3456 Report Version : Rev. 01 FAX : 886-3-327-0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC-1304

RF Exposure Evaluation Report Report No. : FA690910-03 2.3 Calculated Result and Limit Exposure Environment: General Population / Uncontrolled Exposure DG Power EIRP EIRP Distance S S Limit Ratio Mode 2 2 (dBi) (dBm) (dBm) (W) (cm) (mW/cm ) (mW/cm ) (S/Limit) 2.4G;G1D 3.53 28.17 31.89 1.54525 20 0.30757 1 0.30757 5.2G;D1D 7.57 25.59 33.16 2.07014 20 0.41205 1 0.41205 BT 4.0 5.46 10.27 15.73 0.03741 20 0.00744 1 0.00744 Sum Ratio 0.72706 Ratio Limit 1 SPORTON INTERNATIONAL INC. Page No. : 6 of 6 TEL : 886-3-327-3456 Report Version : Rev. 01 FAX : 886-3-327-0973 Issued Date : Mar. 29, 2017 FCC ID: A4RAC-1304


Document Created: 2017-12-30 00:49:20
Document Modified: 2017-12-30 00:49:20
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