MPE Report

FCC ID: 2AL6K-R8188NU3

RF Exposure Info

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FCCID_4170856

/ Shenzhen Global Test Service Co.,Ltd. @15 No.7—101 and 8A¥—104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong v RF Exposure evaluation Report Reference No...................... : GTSR19010008—WLANO2 76o | » oo : 2ALOK—R8188NU3 Compiled by ( position+printed name+signature)..: File administrators Jimmy Wang Supervised by ( position+printed name—+signature)..: Test Engineer Aaron Tan Approved by ( position+printed name+signature)..: Manager Jason Hu DAte Of ISSUQ@......222222222222rrrrrrrrrrrrrkkkkk, : Jan.12, 2019 Representative Laboratory Name .: Shenzhen Global Test Service Co.,Ltd. No.7—101 and 8¥—104, Building 7 and 8, DCC Cultural and Creative favrelele—r— : Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong Applicant‘s name ............................ : Shenzhen Bilian Electronic Co.,Ltd. AQQUF@SS .....2....2222 000066 e 66e e e e e e e e e e e e e e ks : Building B1,Zhongxing Industrial Zone,Juling,.Jutang Community, Guanlan street,Longhua New District, Shenzhen, Guangdong, P.R.China Test specification ........................... : 47CFR §1.1310 ojr|qleeir oo : 47CFR §2.1091 KDB447498 vO6 TRF OFIGIN@tOF ......22........0000 es : Shenzhen Global Test Service Co.,Ltd. Master TRF...........026ee en en e e ks : Dated 2014—12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non—commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader‘s interpretation of the reproduced material due to its placement and context. Test item description .................... : IEEE 802.11b/g/n 1T1R USB WiFi Module Trad@ M@rK ................000eeer es : LB—LINK ManufaCturer ................ccle es : Shenzhen Bilian Electronic Co.,Ltd. Model/Type reference...................... : BL—R8188NU3 Listed MOGU@IS ..................ccc es : / Modulation TYD@ ... : IEEE 802.11b/802.11g/802.11n Operation Frequency................}. : From 2412 — 2462MHz Hardware VersIiOn ...............l}, : VO.1 SOftWare VerSsION ..............c.ll k62 : V33 Aelulle : DC 5V from USB port RE@SUIH. . 22222222000 0000 6e e e rr e e rr e e e e e e e e e e e e : PASS

Report No.: GTSR19010008-WLAN02 Page 2 of 8 TEST REPORT Jan. 12, 2019 Test Report No. : GTSR19010008-WLAN02 ______________________________________________________________________________________________ Date of issue Equipment under Test : IEEE 802.11b/g/n 1T1R USB WiFi Module Model /Type : BL-R8188NU3 Listed Models : / Applicant : Shenzhen Bilian Electronic Co.,Ltd. : Building B1,Zhongxing Industrial Zone,Juling,Jutang Address Community, Guanlan street,Longhua New District, Shenzhen, Guangdong, P.R.China Manufacturer : Shenzhen Bilian Electronic Co.,Ltd. : Building B1,Zhongxing Industrial Zone,Juling,Jutang Address Community, Guanlan street,Longhua New District, Shenzhen, Guangdong, P.R.China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory.

Report No.: GTSR19010008-WLAN02 Page 3 of 8 Contents 1. SUMM ARY 4 1.1. EUT configuration 4 1.2. Product Description 4 2. TEST ENVIRONMENT 5 2.1. Address of the test laboratory 5 2.2. Test Facility 5 2.3. Environmental conditions 5 2.4. Statement of the measurement uncertainty 5 3. METHOD OF MEASUREM ENT 6 3.1. Applicable Standard 6 3.2. Requirement 6 3.3. Limit 6 3.4. MPE Calculation Method 7 3.5. Antenna Information 7 4. EVALU ATION RESULT 8 4.1. Standalone MPE 8 4.2. Simultaneous transmission MPE Considerations 8 5. CONCLUSION 8

Report No.: GTSR19010008-WLAN02 Page 4 of 8 1. SUMMARY 1.1. EUT configuration The following peripheral devices and interface cables were connected during the measurement: ● - supplied by the manufacturer ○ - supplied by the lab ○ Length (m) : / Shield : / Detachable : / 1.2. Product Description Name of EUT IEEE 802.11b/g/n 1T1R USB WiFi Module Trade Mark: / Model Number BL-R8188NU3 Listed Models / Power Supply DC 5V from USB port WLAN Supported 802.11b/802.11g/802.11n Modulation Type IEEE 802.11b: DSSS(CCK,DQPSK,DBPSK) IEEE 802.11g: OFDM(64QAM, 16QAM, QPSK, BPSK) IEEE 802.11n HT20: OFDM (64QAM, 16QAM, QPSK,BPSK) IEEE 802.11n HT40: OFDM (64QAM, 16QAM, QPSK,BPSK) Operation frequency IEEE 802.11b:2412-2462MHz IEEE 802.11g:2412-2462MHz IEEE 802.11n HT20:2412-2462MHz IEEE 802.11n HT40:2422-2452MHz Antenna gain 1.31 dbi Antenna Type External antenna

Report No.: GTSR19010008-WLAN02 Page 5 of 8 2. TEST ENVIRONMENT 2.1. Address of the test laboratory Shenzhen Global Test Service Co.,Ltd. 1F, Building No. 13A, Zhonghaixin Science and Technology City, No.12,6 Road, Ganli Industrial Park, Buji Street, Longgang District, Shenzhen, Guangdong 2.2. Test Facility The test facility is recognized, certified, or accredited by the following organizations: FCC-Registration No.: 165275 Shenzhen Global Test Service Co.,Ltd EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. CNAS-Lab Code: L8169 Shenzhen Global Test Service Co.,Ltd. has been assessed and proved to be in compliance with CNAS- CL01 Accreditation Criteria for Testing and Calibration Laboratories (identical to ISO/IEC 17025: 2005 General Requirements) for the Competence of Testing and Calibration Laboratories. A2LA-Lab Cert. No.: 4758.01 Shenzhen Global Test Service Co.,Ltd. EMC Laboratory has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing. 2.3. Environmental conditions During the measurement the environmental conditions were within the listed ranges: Temperature: 15-35 °C Humidity: 30-60 % Atmospheric pressure: 950-1050mbar 2.4. Statement of the measurement uncertainty The data and results referenced in this document are true and accurate. The reader is cautioned that there may be errors within the calibration limits of the equipment and facilities. The measurement uncertainty was calculated for all measurements listed in this test report acc. to TR-100028-01” Electromagnetic compatibility and Radio spectrum Matters (ERM);Uncertainties in the measurement of mobile radio equipment characteristics; Part 1” and TR-100028-02 “Electromagnetic compatibility and Radio spectrum Matters (ERM);Uncertainties in the measurement of mobile radio equipment characteristics; Part 2 “ and is documented in the Shenzhen Global Test Service Co.,Ltd quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. The manufacturer has the sole responsibility of continued compliance of the device. Hereafter the best measurement capability for Shenzhen GTS laboratory is reported: Test Items Measurement Uncertainty Notes Transmitter power conducted 0.57 dB (1) (1) This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2.

Report No.: GTSR19010008-WLAN02 Page 6 of 8 3. Method of measurement 3.1. Applicable Standard According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 3.2. Requirement Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is ≤ 1.0. The MPE ratio of each antenna is determined at the minimum test separation distance required by the operating configurations and exposure conditions of the host device, according to the ratio of field strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not apply when MPE is estimated using simple calculations based on far-field plane-wave equivalent conditions. The antenna installation and operating requirements for the host device must meet the minimum test separation distances required by all antennas, in both standalone and simultaneous transmission operations, to satisfy compliance. 3.3. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Averaging Frequency Electric Field Magnetic Field Power Density Time Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 614 1.63 (100) * 6 3.0 – 30 1842/f 4.89/f (900/f2)* 6 30 – 300 61.4 0.163 1.0 6 300 – 1500 / / f/300 6 1500 – / / 5 6 100,000 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Averaging Frequency Electric Field Magnetic Field Power Density Time Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 614 1.63 (100) * 30 3.0 – 30 824/f 2.19/f (180/f2)* 30 30 – 300 27.5 0.073 0.2 30 300 – 1500 / / f/1500 30 1500 – / / 1.0 30 100,000 F=frequency in MHz *=Plane-wave equivalent power density

Report No.: GTSR19010008-WLAN02 Page 7 of 8 3.4. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna As declared by the Applicant, the EUT transmits with the maximum soure-baed Duty Cycle of 100%-see the User manual, and the EUT is a wireless device used in a mobile application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum mobile separation distance, r =20cm, as well as the gain of the used antenna is 1.06dBi for WLAN, and the power drift from Turn-up Procedure provide by manufacturer as following states, the RF power density can be obtained.. 3.5. Antenna Information BL-R8812AF1 can only use antennas certificated as follows provided by manufacturer; Antenna type Internal Antenna Identification Operate frequency Maximum antenna and antenna Identification in Internal photos band gain number 2.4GHz – 2.4835 Antenna 1 2.4G Wifi Enternal Antenna GHz 1.31dBi(Max.)

Report No.: GTSR19010008-WLAN02 Page 8 of 8 4. Evaluation Result 4.1. Standalone MPE Max Antenna Max tune up Target power Output Gain Power Density Modulati power Limit W/ tolerance power to (Numeric) at R=20cm Result on Type tolerance(dB (mW/cm2) (dBm) antenna (mW/cm2) m) (mW) 802.11b 15±1 16 39.81 1.352 0.0107 1.0 Pass 802.11g 14±1 15 31.62 1.352 0.0085 1.0 Pass 802.11n 13±1 14 25.11 1.352 0.0068 1.0 Pass (HT20) 802.11 12±1 13 19.95 1.352 0.0054 1.0 Pass n(HT40) 4.2. Simultaneous transmission MPE Considerations According to KDB447498 :For mobile exposure host platform to qualify for simultaneous transmission MPE test exclusion, all transmitters and antennas in the host must be either evaluated for MPE compliance, by measurement or computational modeling, or qualify for the standalone MPE test exclusion in section 7.1. Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is ≤ 1.0. This means that: ∑ of MPE ratios ≤ 1.0 The EUT is Not Applicable. 5. Conclusion This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. .....................End of Report.........................


Document Created: 2019-03-28 05:09:28
Document Modified: 2019-03-28 05:09:28
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