RF Exposure Info (MPE)_rev2.pdf

FCC ID: Q87-WRT1200AC

RF Exposure Info

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FCCID_2558439

RF Exposure Report Report No.: SA141229E04 FCC ID: Q87-WRT1200AC Test Model: WRT1200AC Received Date: Dec. 29, 2014 Test Date: Jan. 26, 2015 Issued Date: Mar. 13, 2015 Applicant: Linksys LLC Address: 121 Theory Drive Irvine California 92617 United States Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: No. 81-1, Lu Liao Keng, 9th Ling,Wu Lung Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien 307, Taiwan R.O.C. Test Location (1): No. 81-1, Lu Liao Keng, 9th Ling,Wu Lung Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien 307, Taiwan R.O.C. Test Location (2): No. 49, Ln. 206, Wende Rd., Shangshan Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien 307, Taiwan R.O.C. This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be used by the client to claim product certification, approval, or endorsement by any government agencies. Report No.: SA141229E04 Page No. 1 / 6 Report Format Version: 6.1.1

Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits For Maximum Permissible Exposure (MPE)............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 3 Calculation Result of Maximum Conducted Power........................................................................... 6 Report No.: SA141229E04 Page No. 2 / 6 Report Format Version: 6.1.1

Release Control Record Issue No. Description Date Issued SA141229E04 Original release. Mar. 13, 2015 Report No.: SA141229E04 Page No. 3 / 6 Report Format Version: 6.1.1

1 Certificate of Conformity Product: 802.11ac Router Brand: Linksys Test Model: WRT1200AC Sample Status: ENGINEERING SAMPLE Applicant: Linksys LLC Test Date: Jan. 26, 2015 Standards: FCC Part 2 (Section 2.1091) KDB 447498 D03 IEEE C95.1 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s EMC characteristics under the conditions specified in this report. Prepared by : , Date: Mar. 13, 2015 Elsie Hsu / Specialist Approved by : , Date: Mar. 13, 2015 May Chen / Manager Report No.: SA141229E04 Page No. 4 / 6 Report Format Version: 6.1.1

2 RF Exposure 2.1 Limits For Maximum Permissible Exposure (MPE) Frequency Range Electric Field Magnetic Field Power Density Average Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes) Limits For General Population / Uncontrolled Exposure 300-1500 … … F/1500 30 1500-100,000 … … 1.0 30 F = Frequency in MHz 2.2 MPE Calculation Formula Pd = (Pout*G) / (4*pi*r2) where Pd = power density in mW/cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 22cm away from the body of the user. So, this device is classified as Mobile Device. 2.4 Antenna Gain The antennas provided to the EUT, please refer to the following table: Transmitter Gain Cable Net Gain Frequency Range Antenna Connecter Brand Circuit (dBi) Loss (dB) (dBi) (GHz to GHz) Type Type 2.5 1 1.5 2.4 ~ 2.4835 Chain (0) LINKSYS 2.6 1.6 1 5.15 ~ 5.25 DIPOLE R-SMA 3.8 1.9 1.9 5.725 ~ 5.85 2.5 1 1.5 2.4 ~ 2.4835 Chain (1) LINKSYS 2.6 1.5 1.1 5.15 ~ 5.25 DIPOLE R-SMA 3.8 2.1 1.7 5.725 ~ 5.85 Report No.: SA141229E04 Page No. 5 / 6 Report Format Version: 6.1.1

3 Calculation Result of Maximum Conducted Power Frequency Max Power Antenna Gain Distance Power Density Limit Band (mW) (dBi) (cm) (mW/cm2) (mW/cm2) (MHz) 2412-2462 938.114 4.51 22 0.43571 1 5180-5240 928.803 4.06 22 0.38893 1 5745-5825 974.638 4.81 22 0.48505 1 NOTE: For 15.247 2.4GHz: Directional gain = 10 log[(10G1/20 + 10G2/20)2 / 2] = 4.51dBi 5GHz: Directional gain = 10 log[(10G1/20 + 10G2/20)2 / 2] = 4.81dBi For 15.407 5GHz: Directional gain = 10 log[(10G1/20 + 10G2/20)2 / 2] = 4.06dBi Conclusion: The formula of calculated the MPE is: CPD1 / LPD1 + CPD2 / LPD2 + ……etc. < 1 CPD = Calculation power density LPD = Limit of power density WLAN 2.4GHz + WLAN 5GHz = 0.43571 + 0.48505 = 0.921 Therefore the maximum calculations of above situations are less than the “1” limit. --- END --- Report No.: SA141229E04 Page No. 6 / 6 Report Format Version: 6.1.1


Document Created: 2015-03-17 16:12:49
Document Modified: 2015-03-17 16:12:49
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