12. FCC SAR Test Report

FCC ID: TE7T2UV3

RF Exposure Info

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FCCID_4299890

FCC SAR Test Report FCC ID: TE7T2UV3 Project No. : 1809C116 Equipment : AC600 Mini Wireless USB Adapter Model Name : Archer T2U Applicant : TP-Link Technologies Co., Ltd. Address : Building 24(floors1,3,4,5) and 28(floors1-4) Central Science and Technology Park, Shennan Rd, Nanshan, Shenzhen, China Date of Receipt : Mar. 12, 2019 Date of Test : May 15, 2019 ~ May 17, 2019 Issued Date : May 23, 2019 Tested by : BTL Inc. PREPARED BY : (Rot Liang) APPROVED BY : (Herbort Liu) BTL INC. No.3, Jinshagang 1st Road, Shixia, Dalang Town, Dongguan, Guangdong, China. TEL: +86-769-8318-3000 FAX: +86-769-8319-6000 Report No.: BTL-FCC SAR-1-1809C116 Page 1 of 34 Report Version: R00

Declaration BTL represents to the client that testing is done in accordance with standard procedures as applicable and that test instruments used has been calibrated with standards traceable to international standard(s) and/or national standard(s). BTL's reports apply only to the specific samples tested under conditions. It is manufacture’s responsibility to ensure that additional production units of this model are manufactured with the identical electrical and mechanical components. BTL shall have no liability for any declarations, inferences or generalizations drawn by the client or others from BTL issued reports. The report must not be used by the client to claim product certification, approval, or endorsement by NIST, A2LA, or any agency of the U.S. Government. This report is the confidential property of the client. As a mutual protection to the clients, the public and ourselves, the test report shall not be reproduced, except in full, without our written approval. BTL’s laboratory quality assurance procedures are in compliance with the ISO/IEC 17025 requirements, and accredited by the conformity assessment authorities listed in this test report. BTL is not responsible for the sampling stage, so the results only apply to the sample as received. The information, data and test plan are provided by manufacturer which may affect the validity of results, so it is manufacturer’s responsibility to ensure that the apparatus meets the essential requirements of applied standards and in all the possible configurations as representative of its intended use. Limitation For the use of the authority's logo is limited unless the Test Standard(s)/Scope(s)/Item(s) mentioned in this test report is (are) included in the conformity assessment authorities acceptance respective. Please note that the measurement uncertainty is provided for informational purpose only and are not use in determining the Pass/Fail results. Report No.: BTL-FCC SAR-1-1809C116 Page 2 of 34 Report Version: R00

Table of Contents Page 1 . GENERAL SUMMARY 6 2 . RF EMISSIONS MEASUREMENT 7 2.1 TEST FACILITY 7 2.2 MEASUREMENT UNCERTAINTY 7 3 . GENERAL INFORMATION 8 3.1 STATEMENT OF COMPLIANCE 8 3.2 GENERAL DESCRIPTION OF EUT 9 3.3 LABORATORY ENVIRONMENT 9 3.4 MAIN TEST INSTRUMENTS 10 4 . SAR MEASUREMENTS SYSTEM CONFIGURATION 11 4.1 SAR MEASUREMENT SET-UP 11 4.1.1 TEST SETUP LAYOUT 11 4.2 DASY5 E-FIELD PROBE SYSTEM 12 4.2.1 PROBE SPECIFICATION 12 4.2.2 E-FIELD PROBE CALIBRATION 13 4.2.3 OTHER TEST EQUIPMENT 14 4.2.4 SCANNING PROCEDURE 15 4.2.5 DATA STORAGE AND EVALUATION 16 4.2.6 SPATIAL PEAK SAR EVALUATION 17 4.2.7 DATA EVALUATION BY SEMCAD 18 5 . SYSTEM VERIFICATION PROCEDURE 20 5.1 TISSUE VERIFICATION 20 5.2 SYSTEM CHECK 21 5.3 SYSTEM CHECK PROCEDURE 21 6 . SAR MEASUREMENT VARIABILITY AND UNCERTAINTY 22 6.1 SAR MEASUREMENT VARIABILITY 22 7 . OPERATIONAL CONDITIONS DURING TEST 23 7.1 WIFI TEST CONFIGURATION 23 7.1.1 WLAN2.4G SAR TEST REQUIREMENTS 23 7.1.2 WLAN5G SAR TEST REQUIREMENTS 24 7.1.3 OFDM TRANSMISSION MODE AND SAR TEST CHANNEL SELECTION 24 7.1.4 INITIAL TEST CONFIGURATION PROCEDURE 25 7.2 TEST POSITION 25 7.2.1 BODY TEST CONFIGURATION 25 8 . TEST RESULT 26 8.1 CONDUCTED POWER RESULTS 26 Report No.: BTL-FCC SAR-1-1809C116 Page 3 of 34 Report Version: R00

Table of Contents Page 8.1.1 CONDUCTED POWER MEASUREMENTS OF WIFI 2.4G 26 8.1.2 CONDUCTED POWER MEASUREMENTS OF WIFI 5G 27 8.2 SAR TEST RESULTS 30 8.2.1 WWAN SAR MEASUREMENT RESULT 31 8.3 MULTIPLE TRANSMITTER EVALUATION 32 APPENDIX 33 1. TEST LAYOUT 33 Appendix A. SAR Plots of System Verification Appendix B. SAR Plots of SAR Measurement Appendix C. Calibration Certificate Appendix D. Photographs of the Test Set-Up Report No.: BTL-FCC SAR-1-1809C116 Page 4 of 34 Report Version: R00

REPORT ISSUED HISTORY Report Version Description Issued Date R00 Original Issue May 23, 2019 Report No.: BTL-FCC SAR-1-1809C116 Page 5 of 34 Report Version: R00

1. GENERAL SUMMARY Equipment AC600 Mini Wireless USB Adapter Brand Name tp-link Model Name Archer T2U Manufacturer TP-Link Technologies Co., Ltd. Building 24(floors1,3,4,5) and 28(floors1-4) Central Science and Address Technology Park, Shennan Rd, Nanshan, Shenzhen, China Standard(s) ANSI Std C95.1:1992 Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz – 300 GHz.( IEEE Std C95.1-1991) IEEE Std 1528:2013 Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques KDB447498 D01 General RF Exposure Guidance v06 KDB447498 D02 SAR Procedures for Dongle Xmtr v02 KDB248227 D01 802. 11 Wi-Fi SAR v02r02 KDB865664 D01 SAR measurement 100 MHz to 6 GHz v01r04 KDB865664 D02 SAR Reporting v01r02 KDB690783 D01 SAR Listings on Grants v01r03 The above equipment has been tested and found compliance with the requirement of the relative standards by BTL Inc. The test data, data evaluation, and equipment configuration contained in our test report (Ref No. BTL-FCC SAR-1-1809C116) were obtained utilizing the test procedures, test instruments, test sites that has been accredited by the Authority of A2LA according to the ISO/IEC 17025 quality assessment standard and technical standard(s). Report No.: BTL-FCC SAR-1-1809C116 Page 6 of 34 Report Version: R00

2. RF EMISSIONS MEASUREMENT 2.1 TEST FACILITY The test facilities used to collect the test data in this report is SAR room at the location of No.3,Jinshagang 1st Road, ShiXia, Dalang Town,Dong Guan, China.523792 2.2 MEASUREMENT UNCERTAINTY Note: Per KDB865664 D01 SAR Measurement 100 MHz to 6 GHz, when the highest measured 1-g SAR within a frequency band is < 1.5 W/kg, the extensive SAR measurement uncertainty analysis described in IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval. The equivalent ratio (1.5/1.6) is applied to extremity and occupational exposure conditions. Report No.: BTL-FCC SAR-1-1809C116 Page 7 of 34 Report Version: R00

3. GENERAL INFORMATION 3.1 STATEMENT OF COMPLIANCE Equipment Highest Body Mode Class SAR-1g(W/kg) DTS 2.4G WLAN 0.88 5.2G WLAN / 5.3G WLAN 0.85 U-NII 5.6G WLAN 1.15 5.8G WLAN 1.02 Note: The highest reported SAR for body is 1.15W/kg. Note: 1) The device is in compliance with Specific Absorption Rate(SAR) for general population uncontrolled exposure limits according to the FCC rule §2.1093, the ANSI C95.1:1992/IEEE C95.1:1991, the NCRP Report Number 86 for uncontrolled environment, and had been tested in accordance with the measurement methods and procedures specified in IEEE Std 1528-2013 . Report No.: BTL-FCC SAR-1-1809C116 Page 8 of 34 Report Version: R00

3.2 GENERAL DESCRIPTION OF EUT Equipment AC600 Mini Wireless USB Adapter Model Name Archer T2U Test Sample Engineering Sample No.: D190302468 Modulation WiFi(DSSS/OFDM) Band TX (MHz) 2.4G WIFI 2400-2483.5 Operation Frequency 5150-5250 Range(s) 5250-5350 5G WIFI 5470-5725 5725-5850 1-6-11 (2.4G WIFI 802.11b) 1-2-6-10-11 (2.4G WIFI 802.11g/n HT20, VHT20) 3-4-6-8-9 (2.4G WIFI 802.11n HT40) 3-4-5-6-7-8-9 (2.4G WIFI VHT40) Band 5.2G WIFI 5.3G WIFI 5.6G WIFI 5.8G WIFI Test Channels 100-104-108- (low-mid-high) 802.11a/n HT20 149-153-157- 36-40-44-48 52-56-60-64 112-116-132- /ac VHT20 161-165 136-140 802.11n HT40/ 102-110-118- 38-46 54-62 151-159 ac VHT40 126-134 802.11ac VHT80 42 58 106-122 155 Band Ant Gain(dBi) Antenna Gain 2.4G WIFI 1.96 5G WIFI 2.95 Note: Vht mode is an extension of n mode, it is only differ in rate. 3.3 LABORATORY ENVIRONMENT Temperature Min. = 18ºC, Max. = 25ºC Relative humidity Min. = 30%, Max. = 70% Ground system resistance < 0.5Ω Ambient noise is checked and found very low and in compliance with requirement of standards. Reflection of surrounding objects is minimized and in compliance with requirement of standards. Report No.: BTL-FCC SAR-1-1809C116 Page 9 of 34 Report Version: R00

3.4 MAIN TEST INSTRUMENTS Item Equipment Manufacturer Model Serial No. Cal. Date Cal. Interval 1 Data Acquisition Electronics Speag DAE4 1405 Feb. 26, 2019 1 Year 2 Data Acquisition Electronics Speag DAE3 536 Oct. 15, 2018 1 Year 3 E-field Probe Speag EX3DV4 7396 May 29, 2018 1 Year 4 E-field Probe Speag ES3DV3 3162 Apr. 12, 2019 1 Year 5 System Validation Dipole Speag D2450V2 919 Jun. 11, 2018 3 Years 6 System Validation Dipole Speag D5GHzV2 1160 Jun. 20, 2018 3 Years Twin Sam 7 Twin Sam Phantom Speag 1896 N/A N/A Phantom V5.0 8 Power Amplifier Mini-Circuits ZHL-42W+ QA1333003 Feb. 25, 2019 1 Year 9 Power Amplifier Mini-Circuits ZVE-8G+ 520701341 Feb. 25, 2019 1 Year 10 DC Source lteck OT6154 M00157 Oct. 12, 2018 1 Year 11 ENA Network Analyzer Agilent E5071C MY46102965 Mar. 10, 2019 1 Year MXG Analog Signal 12 Agilent N5181A MY49060710 Aug. 11, 2018 1 Year Generator 13 Signal Generator Agilent E4438C MY4907131 Mar. 10, 2019 1 Year 14 P-series power meter Agilent N1911A MY45100473 Aug. 11, 2018 1 Year 15 Wideband power sensor Agilent N1921A MY51100041 Aug. 11, 2018 1 Year 16 Peak Power Analyzer Keysight 8990B MY51000506 Nov. 26, 2018 1 Year 17 Wideband Power Sensor Keysight N1923A MY58310004 Nov. 26, 2018 1 Year 18 Dielectric Assessment Kit Speag DAK-3.5 1226 N/A N/A 19 Dual directional coupler Woken TS-PCC0M-05 107090019 Mar. 10, 2019 1 Year 20 Coupler Woken 0110A05601O-10 COM5BNW1A2 Mar. 10, 2019 1 Year 21 Digital Themometer LKM DTM3000 3519 Jul. 19, 2018 1 Year 22 Thermohygrometer Parkoo JR609 N/A Aug. 23, 2018 1 Year Note: 1. “N/A” denotes no model name, serial No. or calibration specified. 2. 1) Per KDB865664 D01 requirements for dipole calibration, the test laboratory has adopted three-year extended calibration interval. Each measured dipole is expected to evaluate with the following criteria at least on annual interval in Appendix C. a) There is no physical damage on the dipole; b) System check with specific dipole is within 10% of calibrated value; c) The most recent return-loss result , measured at least annually, deviates by no more than 20% from the previous measurement; d) The most recent measurement of the real or imaginary parts of the impedance, measured at least annually is within 5Ωfrom the previous measurement. 2) Network analyzer probe calibration against air, distilled water and a short block performed before measuring liquid parameters. Report No.: BTL-FCC SAR-1-1809C116 Page 10 of 34 Report Version: R00

4. SAR MEASUREMENTS SYSTEM CONFIGURATION 4.1 SAR MEASUREMENT SET-UP The DASY5 system for performing compliance tests consists of the following items: 1. A standard high precision 6-axis robot (Stäubli RX family) with controller and software. An arm extension for accommodating the data acquisition electronics (DAE). 2. A dosimetric probe, i.e. an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system. 3. A data acquisition electronic (DAE) which performs the signal amplification, signal multiplexing, AD-conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC. 4. A unit to operate the optical surface detector which is connected to the EOC. 5. The Electro-Optical Coupler (EOC) performs the conversion from the optical into a digital electric signal of the DAE. The EOC is connected to the DASY5 measurement server. 6. TheDASY5 measurement server, which performs all real-time data evaluation for field measurements and surface detection, controls robot movements and handles safety operation. A computer operating Windows. 7. DASY5 software and SEMCAD data evaluation software. 8. Remote control with teach panel and additional circuitry for robot safety such as warning lamps, etc. 9. The generic twin phantom enabling the testing of left-hand and right-hand usage. 10. The device holder for handheld mobile phones. 11. Tissue simulating liquid mixed according to the given recipes. 12. System validation dipoles allowing to validate the proper functioning of the system. 4.1.1 TEST SETUP LAYOUT Report No.: BTL-FCC SAR-1-1809C116 Page 11 of 34 Report Version: R00

4.2 DASY5 E-FIELD PROBE SYSTEM The SAR measurements were conducted with the dosimetric probe EX3DV4 and ES3DV3 (manufactured by SPEAG), designed in the classical triangular configuration and optimized for dosimetrice valuation. 4.2.1 PROBE SPECIFICATION EX3DV4 Construction Symmetrical design with triangular core Interleaved sensors Built-in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration ISO/IEC 17025 calibration service available Frequency 10 MHz to 6 GHz Linearity: ± 0.2 dB (30 MHz to 6 GHz) Directivity ± 0.3 dB in HSL (rotation around probe axis) ± 0.5 dB in tissue material (rotation normal to probe axis) Dynamic Range 10 µW/g to > 100 mW/g Linearity:± 0.2dB Dimensions Overall length: 330 mm (Tip: 20 mm) Tip diameter: 2.5 mm (Body: 12 mm) Distance from probe tip to dipole centers: 1.0 mm ES3DV3 Construction Symmetrical design with triangular core Interleaved sensors Built-in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration ISO/IEC 17025 calibration service available Frequency 10 MHz to 4 GHz Linearity: ± 0.2 dB (30 MHz to 4 GHz) Directivity ± 0.3 dB in HSL (rotation around probe axis) ± 0.5 dB in tissue material (rotation normal to probe axis) Dynamic Range 5 µW/g to > 100 mW/g Linearity:± 0.2dB Dimensions Overall length: 330 mm (Tip: 20 mm) Tip diameter: 4 mm (Body: 12 mm) Distance from probe tip to dipole centers: 1.0 mm E-field Probe Report No.: BTL-FCC SAR-1-1809C116 Page 12 of 34 Report Version: R00

4.2.2 E-FIELD PROBE CALIBRATION Eachprobeiscalibratedaccordingtoadosimetricassessmentprocedurewithaccuracybetterthan±10 %.The spherical isotropy was evaluatedandfoundtobebetterthan±0.25dB.The sensitivity parameters (NormX, NormY, NormZ), the diode compression parameter (DCP) and the conversion factor(ConvF) of the probe are tested. The free space E-field from amplified probe outputs is determined in a test chamber. This is performed in a TEM cell for frequencies bellow 1 GHz, and in a wave guide above 1 GHz for free space. For the free space calibration, the probe is placed in the volumetric center of the cavity and at the proper orientation with the field. The probe is then rotated 360 degrees. E-field temperature correlation calibration is performed in a flat phantom filled with the appropriate simulated brain tissue. The measured free space E-field in the medium correlates to temperature rise in a dielectric medium. For temperature correlation calibration a RF transparent thermistor-based temperature probe is used in conjunction with the E-field probe. Where: ∆t=Exposure time(30 seconds), C =Heat capacity of tissue (brain or muscle), ∆T=Temperature increase due to RF exposure. Or Where: σ=Simulated tissue conductivity, ρ=Tissue density (kg/m3). Report No.: BTL-FCC SAR-1-1809C116 Page 13 of 34 Report Version: R00

4.2.3 OTHER TEST EQUIPMENT 4.2.3.1 Device Holder for Transmitters Construction: Simple but effective and easy-to-use extension for Mounting Device that facilitates the testing of larger devices(e.g., laptops, cameras, etc.) It is lightweight and fits easily on the upper part of the Mounting Device in place of the phone positioner. The extension is fully compatible with the Twin SAM, ELI4and SAM v6.0Phantoms. Material: POM, Acrylic glass, Foam 4.2.3.2 Phantom Model Twin SAM Construction The shell corresponds to the specifications of the Specific Anthropomorphic Mannequin (SAM) phantom defined in IEEE 1528 and IEC 62209-1. It enables the dosimetric evaluation of left and right hand phone usage as well as body mounted usage at the flat phantom region. A cover prevents evaporation of the liquid. Reference markings on the phantom allow the complete setup of all predefined phantom positions and measurement grids by teaching three points with the robot. Shell Thickness 2 ± 0.2 mm Filling Volume Approx. 25 liters Length:1000mm; Width: 500mm Dimensions Height: adjustable feet Aailable Special Report No.: BTL-FCC SAR-1-1809C116 Page 14 of 34 Report Version: R00

4.2.4 SCANNING PROCEDURE The DASY5 installation includes predefined files with recommended procedures for measurements and validation. They are read-only document files and destined as fully defined but unmeasured masks. All test positions (head or body-worn) are tested with the same configuration of test steps differing only in the grid definition for the different test positions. The “reference” and “drift” measurements are located at the beginning and end of the batch process. They measure the field drift at one single point in the liquid over the complete procedure. The indicated drift is mainly the variation of the DUT’s output power and should vary max. ± 5 %. The “surface check” measurement tests the optical surface detection system of the DASY5 system by repeatedly detecting the surface with the optical and mechanical surface detector and comparing the results. The output gives the detecting heights of both systems, the difference between the two systems and the standard deviation of the detection repeatability. Air bubbles or refraction in the liquid due to separation of the sugar-water mixture gives poor repeatability (above ± 0.1mm). To prevent wrong results tests are only executed when the liquid is free of air bubbles. The difference between the optical surface detection and the actual surface depends on the probe and is specified with each probe. (It does not depend on the surface reflectivity or the probe angle to the surface within ± 30°.)  Area Scan The “area scan” measures the SAR above the DUT or verification dipole on a parallel plane to the surface. It is used to locate the approximate location of the peak SAR with 2D spline interpolation. The robot performs a stepped movement along one grid axis while the local electrical field strength is measured by the probe. The probe is touching the surface of the SAM during acquisition of measurement values. The standard scan uses large grid spacing for faster measurement. Standard grid spacing for head measurements is 15 mm in x- and y- dimension(≤2GHz), 12 mm inx- and y- dimension(2-4 GHz) and 10mm in x- and y- dimension(4-6GHz). If a finer resolution is needed, the grid spacing can be reduced. Grid spacing and orientation have no influence on the SAR result. For special applications where the standard scan method does not find the peak SAR within the grid, e.g. mobile phones with flip cover, the grid can be adapted in orientation.  Zoom Scan A “zoom scan” measures the field in a volume around the 2D peak SAR value acquired in the previous “coarse” scan. This is a fine grid with maximum scan spatial resolution:Δxzoom, Δyzoom≤ 2GHz -≤8mm, 2-4GHz -≤5 mm and 4-6 GHz-≤4mm; Δzzoom≤3GHz -≤5 mm, 3-4 GHz-≤4mm and 4-6GHz-≤2mm where the robot additionally moves the probe along the z-axis away from the bottom of the Phantom. DASY is also able to perform repeated zoom scans if more than 1 peak is found during area scan. In this document, the evaluated peak 1g and 10g averaged SAR values are shown in the 2D-graphics in Appendix B. Test results relevant for the specified standard (see chapter 1.4.)are shown in table form form in chapter 7.2. A Z-axis scan measures the total SAR value at the x-and y-position of the maximum SAR value found during the cube scan. The probe is moved away in z-direction from the bottom of the SAM phantom in 2 mm steps. This measurement shows the continuity of the liquid and can - depending in the field strength – also show the liquid depth. Report No.: BTL-FCC SAR-1-1809C116 Page 15 of 34 Report Version: R00

4.2.5 DATA STORAGE AND EVALUATION 4.2.5.1Data Storage The DASY5 software stores the acquired data from the data acquisition electronics as raw data (in microvolt readings from the probe sensors), together with all necessary software parameters for the data evaluation (probe calibration data, liquid parameters and device frequency and modulation data) in measurement files with the extension “DAE”. The software evaluates the desired unit and format for output each time the data is visualized or exported. This allows verification of the complete software setup even after the measurement and allows correction of incorrect parameter settings. For example, if a measurement has been performed with a wrong crest factor parameter in the device setup, the parameter can be corrected afterwards and the data can be re-evaluated. The measured data can be visualized or exported in different units or formats, depending on the selected probe type ([V/m], [A/m], [°C], [mW/g], [mW/cm²], [dBrel], etc.). Some of these units are not available in certain situations or show meaningless results, e.g., a SAR output in a lossless media will always be zero. Raw data can also be exported to perform the evaluation with other software packages. Report No.: BTL-FCC SAR-1-1809C116 Page 16 of 34 Report Version: R00

o# 3TL é@ sumr A m,!, The following table summarizes the area scan and zoom scan resolutions per FCC KDB 865664D01: Maximun Area Maximun Zoom Maximun Zoom Scan spatial resolution Minimum Frequency Scan Scan sp;tlal Uniform Grid Graded Grad zoom scan resolution resolution Aezson(D) Aeisenl1)* AZzecn{n21)" volume (BXaren B¥aes) |_(AX7com: AYzoom ) ten Ter * uy.z) <2GHz < 15mm <8mm $ 515Azzeon(h—1) >30mm 2—3GHz 2mm $‘6zz..,(n—1) mm 3—4GHz 2mm 5"AZzcen(D—1) mm 4—5GHz Omm 5"AZzzen(D—1) mm 5—60Hz Omm 5"Azzeen(n1) 22mm 4.2.6 SPATIAL PEAK SAR EVALUATION The spatial peak SAR — value for 1 and 10 g is evaluated after the Cube measurements have been done. The basis of the evaluation are the SAR values measured at the points of the fine cube grid consisting of 5 x 5 x 7 points( with 8mm horizontal resolution) or 7 x 7 x 7 points( with 5mm horizontal resolution) or 8 x 8 x 7 points( with 4mm horizontal resolution). The algorithm thatfinds the maximal averaged volume is separated into three different stages. m The data between the dipole center of the probe and the surface of the phantom are extrapolated. This data cannot be measured since the center of the dipole is 2.7 mm away from the tip of the probe and the distance between the surface and the lowest measuring point is about 1 mm (see probe calibration sheet). The extrapolated data from a cubs measurement can be visualized by selecting "Graph Evaluated". m The maximum interpolated value is searched with a straight—forward algorithm. Around this maximum the SAR — values averaged over the spatial volumes (1g or 10 g) are computed using the 3d—spline interpolation algorithm. If the volume cannot be evaluated (i.e., if a part of the grid was cut off by the boundary of the measurement area) the evaluation will be started on the comners of the bottom plane of the cube. m All neighboring volumes are evaluated until no neighboring volume with a higher average value is found. Extrapolation The extrapolation is based on a least square algorithm [W. Gander, Computer mathematic, p.168—180]. Through the points in the first 3 cm along the z—axis, polynomials of order four are calculated. These polynomials are then used to evaluate the points between the surface and the probetip. The points, calculated from the surface, have a distance of 1 mm from each other. Interpolation The interpolation of the points is done with a 3d—Spline. The 3d—Spline is composed of three one—dimensional splines with the "Not a knot"—condition [W. Gander, Computer mathematic, p.141—150] (x, y and 2 —direction) [Numerical Recipes in C, Second Edition, p.123ff ]. Volume Averaging At First the size of the cube is calculated. Then the volume is integrated with the trapezcidal algorithm. 8000 points (20x20x20) are interpolated to calculate the average. Advanced Extrapolation DASY5 uses the advanced extrapolation option which is able to compensate boundary effects on E—field probes. Report No.: BTL—FCC SAR—1—18090116 Page 17 of 34 Report Version: ROO

4.2.7 DATA EVALUATION BY SEMCAD The SEMCAD software automatically executes the following procedures to calculate the field units from the microvolt readings at the probe connector. The parameters used in the evaluation are stored in the configuration modules of the software: Probe parameters: Sensitivity Normi, ai0, ai1,ai2 Conversion factor ConvFi Diode compression point Dcpi Device Frequency f parameters: Crest factor cf Media parameters: Conductivity Density These parameters must be set correctly in the software. They can be found in the component documents or they can be imported into the software from the configuration files issued for the DASY5 components. In the direct measuring mode of the multimeter option, the parameters of the actual system setup are used. In the scan visualization and export modes, the parameters stored in the corresponding document files are used. The first step of the evaluation is a linearization of the filtered input signal to account for the compression characteristics of the detector diode. The compensation depends on the input signal, the diode type and the DC-transmission factor from the diode to the evaluation electronics. If the exciting field is pulsed, the crest factor of the signal must be known to correctly compensate for peak power. The formula for each channel can be given as: Vi= Ui+ Ui2· cf/ dcpi With Vi= compensated signal of channel i (i = x,y,z ) Ui= input signal of channel i ( i = x, y,z ) cf=crest factor of exciting field (DASY parameter) dcpi=diode compression point (DASY parameter) Report No.: BTL-FCC SAR-1-1809C116 Page 18 of 34 Report Version: R00

From the compensated input signals the primary field data for each channel can be evaluated: E-field probes: Ei= ( Vi/ Normi·ConvF)1/2 H-field probes: Hi= ( Vi)1/2· ( ai0+ ai1f+ ai2f2)/ f With Vi= compensated signal of channel i (i = x,y,z ) Normi= sensor sensitivity of channel i ( i = x, y,z ) 2 [mV/(V/m) ]for E-field Probes ConvF = sensitivity enhancement in solution aij=sensor sensitivity factors for H-field probes f=carrier frequency [GHz] Ei=electric field strength of channel i in V/m Hi= magnetic field strength of channel i in A/m The RSS value of the field components gives the total field strength (Hermitian magnitude): Etot= (EX2+ EY2+EZ2)1/2 The primary field data are used to calculate the derived field units. SAR= (Etot)2 ·σ/ (ρ·1000) With SAR=local specific absorption rate in mW/g Etot=total field strength in V/m =conductivity in[mho/m]or[Siemens/m] 3 =equivalent tissue density in g/cm Note that the density is normally set to 1(or1.06), to account for actual brain density rather than the density of the simulation liquid. The power flow density is calculated assuming the excitation field to be a free space field. Ppwe= Etot2/3770orPpwe= Htot2· 37.7 With Ppwe= equivalent power density of a plane wave in mW/cm2 Etot=total field strength in V/m Htot=total magnetic field strength in A/m Report No.: BTL-FCC SAR-1-1809C116 Page 19 of 34 Report Version: R00

5. SYSTEM VERIFICATION PROCEDURE 5.1 TISSUE VERIFICATION The simulating liquids should be checked at the beginning of a series of SAR measurements to determine of the dielectic parameter are within the tolerances of the specified target values. The measured conductivity and relative permittivity should be within ± 5% of the target values. The following materials are used for producing the tissue-equivalent materials. Diethylene Tissue Triton Glycol Bactericide DGBE HEC NaCl Sucrose Water Type X-100 Mono- hexylether Body 2450 - 31.4 - 0.1 - - 68.5 - Body 5G - - - - - 10.7 78.6 10.7 Salt: 99+% Pure Sodium Chloride; Sugar: 98+% Pure Sucrose; Water: De-ionized, 16M + resistivity HEC: Hydroxyethyl Cellulose; DGBE: 99+% Di(ethylene glycol) butyl ether,[2-(2-butoxyethoxy)ethanol] Triton X-100(ultra pure): Polyethylene glycol mono [4-(1,1,3,3-tetramethylbutyl)phenyl]ether Tissue Verification Liquid Targeted Targeted Deviation Deviation Tissue Frequency Conductivity Permittivity Temp. Conductivity Permittivity Conductivity Permittivity Date Type (MHz) (σ) (εr) (℃) (σ) (εr) (σ) (%) (εr) (%) Body 2450 22.5 1.997 51.664 1.95 52.7 2.41 -1.97 May 17, 2019 Body 5300 22.4 5.564 47.528 5.42 48.9 2.66 -2.81 May 15, 2019 Body 5600 22.4 5.982 46.911 5.77 48.5 3.67 -3.28 May 15, 2019 Body 5800 22.4 6.258 46.530 6.00 48.2 4.30 -3.46 May 15, 2019 Note: 1)The dielectric parameters of the tissue-equivalent liquid should be measured under similar ambient conditions and within 2 °C of the conditions expected during the SAR evaluation to satisfy protocol requirements. 2)KDB 865664 was ensured to be applied for probe calibration frequencies greater than or equal to 50MHz of the EUT frequencies. 3)The above measured tissue parameters were used in the DASY software to perform interpolation via the DASY software to determine actual dielectric parameters at the test frequencies. The SAR test plots may slightly differ from the table above since the DASY rounds to three significant digits. Report No.: BTL-FCC SAR-1-1809C116 Page 20 of 34 Report Version: R00

5.2 SYSTEM CHECK The system check is performed for verifying the accuracy of the complete measurement system and performance of the software. The system check is performed with tissue equivalent material according to IEE Std 1528 (described above). The following table shows system check results for all frequency bands and tissue liquids used during the tests. Targeted Measured normalized System Frequency Deviation Dipole Date SAR-1g SAR-1g SAR-1g Check (MHz) (%) S/N (W/kg) (W/kg) (W/kg) Body May 17, 2019 2450 50.80 13.20 52.80 3.94 919 Body May 15, 2019 5300 72.30 7.15 71.50 -1.11 1160 Body May 15, 2019 5600 77.70 8.07 80.70 3.86 1160 Body May 15, 2019 5800 76.60 7.74 77.40 1.04 1160 5.3 SYSTEM CHECK PROCEDURE The system check is performed by using a system check dipole which is positioned parallel to the planar part of the SAM phantom at the reference point. The distance of the dipole to the SAM phantom is determined by a plexiglass spacer. The dipole is connected to the signal source consisting of signal generator and amplifier via a directional coupler, N-connector cable and adaption to SMA. It is fed with a power of 250 mW(below 3GHz) or 100mW(3-6GHz). To adjust this power a power meter is used. The power sensor is connected to the cable before the system check to measure the power at this point and do adjustments at the signal generator. At the outputs of the directional coupler both return loss as well as forward power are controlled during the system check to make sure that emitted power at the dipole is kept constant. This can also be checked by the power drift measurement after the test. System check results have to be equal or near the values determined during dipole calibration (target SAR in table above) with the relevant liquids and test system(±10 %). Report No.: BTL-FCC SAR-1-1809C116 Page 21 of 34 Report Version: R00

6. SAR MEASUREMENT VARIABILITY AND UNCERTAINTY 6.1 SAR MEASUREMENT VARIABILITY Per KDB865664 D01 SAR measurement 100 MHz to 6 GHz, SAR measurement variability must be assessed for each frequency band, which is determined by the SAR probe calibration point and tissue-equivalent medium used for the device measurements. The additional measurements are repeated after the completion of all measurements requiring the same head or body tissue-equivalent medium in a frequency band. The test device should be returned to ambient conditions (normal room temperature) with the battery fully charged before it is re-mounted on the device holder for the repeated measurement(s) to minimize any unexpected variations in the repeated results. 1) Repeated measurement is not required when the original highest measured SAR is < 0.80 W/kg; steps 2) through 4) do not apply. 2) When the original highest measured SAR is ≥ 0.80 W/kg, repeat that measurement once. 3) Perform a second repeated measurement only if the ratio of largest to smallest SAR for the original and first repeated measurements is > 1.20 or when the original or repeated measurement is ≥ 1.45 W/kg (~ 10% from the 1-g SAR limit). 4) Perform a third repeated measurement only if the original, first or second repeated measurement is ≥ 1.5 W/kg and the ratio of largest to smallest SAR for the original, first and second repeated measurements is > 1.20. The same procedures should be adapted for measurements according to extremity and occupational exposure limits by applying a factor of 2.5 for extremity exposure and a factor of 5 for occupational exposure to the corresponding SAR thresholds. The detailed repeated measurement results are shown in Section 8.2. Report No.: BTL-FCC SAR-1-1809C116 Page 22 of 34 Report Version: R00

7. OPERATIONAL CONDITIONS DURING TEST 7.1 WIFI TEST CONFIGURATION For WLAN SAR testing, WLAN engineering testing software installed on the DUT can provide continuous transmitting RF signal. 2.4G 802.11n 802.11n Mode 802.11b 802.11g VHT20 VHT40 HT20 HT40 Duty cycle 100% Crest factor 1 5G 802.11n 802.11n 802.11ac 802.11ac 802.11ac Mode 802.11a HT20 HT40 VHT20 VHT40 VHT80 Duty cycle 100% Crest factor 1 For WiFi SAR testing, a communication link is set up with the test mode software for WiFi mode test. During the test, at the each test frequency channel, the EUT is operated at the RF continuous emission mode. The RF signal utilized in SAR measurement has 100% duty cycle and its crest factor is 1. The test procedures in KDB 248227 D01 are applied. 7.1.1 WLAN2.4G SAR TEST REQUIREMENTS 802.11b DSSS SAR Test Requirements SAR is measured for 2.4 GHz 802.11b DSSS using either a fixed test position or, when applicable, the initial test position procedure. SAR test reduction is determined according to the following: 1) When the reported SAR of the highest measured maximum output power channel for the exposure configuration is ≤ 0.8 W/kg, no further SAR testing is required for 802.11b DSSS in that exposure configuration. 2) When the reported SAR is > 0.8 W/kg, SAR is required for that exposure configuration using the next highest measured output power channel. When any reported SAR is > 1.2 W/kg, SAR is required for the third channel; i.e., all channels require testing. 2.4 GHz 802.11g/n OFDM SAR Test Exclusion Requirements When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, the measurement and test reduction procedures for OFDM are applied. SAR is not required for the following 2.4 GHz OFDM conditions. 1) When KDB Publication 447498 SAR test exclusion applies to the OFDM configuration. 2) When the highest reported SAR for DSSS is adjusted by the ratio of OFDM to DSSS specified maximum output power and the adjusted SAR is ≤ 1.2 W/kg. SAR Test Requirements for OFDM configurations When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, each stand alone. And frequency aggregated band is considered separately for SAR test reduction. In applying the initial test configuration and subsequent test configuration procedures, the 802.11 transmission configuration with the highest specified maximum output power and the channel within a test configuration with the highest measured maximum output power should be clearly distinguished to apply the procedures. Report No.: BTL-FCC SAR-1-1809C116 Page 23 of 34 Report Version: R00

7.1.2 WLAN5G SAR TEST REQUIREMENTS  U-NII-1 and U-NII-2A Band For devices that operate in both U-NII-1 and U-NII-2A bands, when the same maximum output power is specified for both bands, begin SAR measurement in U-NII-2A band by applying the OFDM SAR requirements. If the highest reported SAR for a test configuration is ≤ 1.2 W/kg, SAR is not required for U-NII-1 band for that configuration (802.11 mode and exposure condition); otherwise, both bands are tested independently for SAR. When different maximum output power is specified for the bands, begin SAR measurement in the band with higher specified maximum output power. The highest reported SAR for the tested configuration is adjusted by the ratio of lower to higher specified maximum output power for the two bands. When the adjusted SAR is ≤ 1.2 W/kg, SAR is not required for the band with lower maximum output power in that test configuration; otherwise, both bands are tested independently for SAR.  U-NII-2C, U-NII-3 Bands The frequency range covered by these bands is 380 MHz (5.47 – 5.85 GHz), which requires a minimum of at least two SAR probe calibration frequency points to support SAR measurements. When Terminal Doppler Weather Radar (TDWR) restriction applies, the channels at 5.60 – 5.65 GHz in U-NII-2C band must be disabled with acceptable mechanisms and documented in the equipment certification. Unless band gap channels are permanently disabled, they must be considered for SAR testing. To maintain SAR measurement accuracy and to facilitate test reduction, the channels in U-NII-2C band above 5.65 GHz may be grouped with the 5.8 GHz channels in U-NII-3 or §15.247 band to enable two SAR probe calibration frequency points to cover the bands, including the band gap channels.11 When band gap channels are supported and the bands are not aggregated for SAR testing, band gap channels must be considered independently in each band according to the normally required OFDM SAR measurement and probe calibration frequency points requirements. 7.1.3 OFDM TRANSMISSION MODE AND SAR TEST CHANNEL SELECTION For the 2.4GHz and 5GHz bands, when the same maximum output power was specified for multiple OFDM transmission mode configurations in a frequency band or aggregated band, SAR is measured using the configuration with the largest channel bandwidth, lowest order modulation and lowest data rate. When the maximum output power of a channel is the same for equivalent OFDM configurations(for example 802.11a,802.11n and 802.11ac,or 802.11g and 802.11n,with the same channel bandwidth, modulation, and data rate, etc.),the lower order 802.11 mode(i.e.802.11a then 802.11n and 802.11ac,or 802.11g then 802.11n) is used for SAR measurement. When the maximum output power are the same for multiple test channels, either according to the default or additional power measurement requirements, SAR is measured using the channel closest to the middle of the frequency band or aggregated band. When there are multiple channels with the same maximum output power, SAR is measured using the higher number channel. Report No.: BTL-FCC SAR-1-1809C116 Page 24 of 34 Report Version: R00

7.1.4 INITIAL TEST CONFIGURATION PROCEDURE For OFDM, in both 2.4G and 5GHz bands, an initial test configuration is determined for each frequency band and aggregated band, according to the transmission mode with the highest maximum output power specified for SAR measurements. When the same maximum output power is specified for multiple OFDM transmission mode configurations in a frequency band or aggregated band, SAR is measured using the configuration(s) with the largest channel bandwidth, lowest order modulation, and lowest data rate. If the average RF output powers of the highest identical transmission modes are within 0.25 dB of each other, mid channel of the transmission mode with highest average RF output powers is the initial test channel. Otherwise, the channel of the transmission mode with the highest average RF output power will be the initial test configuration. When the reported SAR is ≤ 0.8 W/kg, no additional measurements on other test channels are required. Otherwise, SAR is evaluated using the subsequent highest average RF output channel until the reported SAR result is ≤1.2 W/kg or all channels are measured. When there are multiple untested channels having the same subsequent highest average RF output power, the channel with higher frequency from the lowest 802.11 mode is considered for SAR measurement. 7.2 TEST POSITION 7.2.1 BODY TEST CONFIGURATION Test all USB orientations [see figure below: (A) Horizontal-Up, (B) Horizontal-Down, (C) Vertical-Front, and (D) Vertical-Back and Tip with a device-to-phantom separation distance of 5 mm. Fig 7.2.1 USB Connector Orientations Implemented on Laptop Computers Report No.: BTL-FCC SAR-1-1809C116 Page 25 of 34 Report Version: R00

8. TEST RESULT 8.1 CONDUCTED POWER RESULTS 8.1.1 CONDUCTED POWER MEASUREMENTS OF WIFI 2.4G Frequency Data Rate Max. Average Mode Channel (MHz) (Mbps) Tune up Power(dBm) 1 2412 18.00 17.98 802.11b 6 2437 1 18.00 17.98 11 2462 18.00 17.91 1 2412 17.50 17.24 2 2417 18.00 17.86 802.11g 6 2437 6 18.00 17.89 10 2457 18.00 17.86 11 2462 17.00 16.87 1 2412 17.00 16.79 2 2417 18.00 17.89 802.11n HT20 6 2437 MCS0 18.00 17.97 10 2457 18.00 17.89 11 2462 18.00 16.76 3 2422 15.50 15.39 4 2427 17.00 16.76 802.11n HT40 6 2437 MCS0 17.00 16.81 8 2447 17.00 16.42 9 2452 16.00 15.84 1 2412 16.00 15.97 2 2417 18.00 17.89 NSS1 VHT20 6 2437 18.00 17.94 MCS0 10 2457 18.00 17.64 11 2462 17.00 16.82 3 2422 16.00 15.53 4 2427 16.00 15.77 5 2432 17.00 16.71 NSS1 VHT40 6 2437 17.00 16.87 MCS0 7 2442 17.00 16.68 8 2447 16.00 15.64 9 2452 16.00 15.59 Note: 1) The Average conducted power of WiFi is measured with RMS detector. 2) Per KDB248227 D01, for WiFi 2.4GHz, the highest measured maximum output power Channel for DSSS modes(802.11b) was selected for SAR measurement. SAR for OFDM modes(2.4GHz 802.11g/n) was not required When the highest reported SAR for DSSS is adjusted by the ratio of OFDM modes(802.11g/n) to DSSS modes(802.11b) specified maximum output power and the adjusted SAR is ≤ 1.2 W/kg. 3) The tested channel results are marks in bold. Report No.: BTL-FCC SAR-1-1809C116 Page 26 of 34 Report Version: R00

8.1.2 CONDUCTED POWER MEASUREMENTS OF WIFI 5G Frequency Data Rate Max. Average Band Mode Channel (MHz) (Mbps) Tune-up Power(dBm) 36 5180 18.00 17.69 40 5200 18.00 17.88 802.11a 6 44 5220 18.00 17.83 48 5240 18.00 17.89 36 5180 18.00 17.95 40 5200 18.00 17.83 802.11n HT20 MCS0 44 5220 18.00 17.81 48 5240 18.00 17.87 5.2G 38 5190 18.00 17.65 802.11n HT40 MCS0 46 5230 18.00 17.81 36 5180 18.00 17.92 40 5200 18.00 17.62 802.11ac VHT20 MCS0 44 5220 18.00 17.61 48 5240 18.00 17.68 38 5190 18.00 17.87 802.11ac VHT40 MCS0 46 5230 18.00 17.94 802.11ac VHT80 42 5210 MCS0 18.00 17.65 Frequency Data Rate Max. Average Band Mode Channel (MHz) (Mbps) Tune-up Power(dBm) 52 5260 18.00 17.74 56 5280 18.00 17.59 802.11a 6 60 5300 18.00 17.62 64 5320 18.00 17.83 52 5260 18.00 17.62 56 5280 18.00 17.63 802.11n HT20 MCS0 60 5300 18.00 17.75 64 5320 18.00 17.78 5.3G 54 5270 18.00 17.83 802.11n HT40 MCS0 62 5310 18.00 17.81 52 5260 18.00 17.72 56 5280 18.00 17.65 802.11ac VHT20 MCS0 60 5300 18.00 17.69 64 5320 18.00 17.91 54 5270 18.00 17.96 802.11ac VHT40 MCS0 62 5310 18.00 17.89 802.11ac VHT80 58 5290 MCS0 18.00 17.79 Report No.: BTL-FCC SAR-1-1809C116 Page 27 of 34 Report Version: R00

Frequency Data Rate Max. Average Band Mode Channel (MHz) (Mbps) Tune-up Power(dBm) 100 5500 16.50 15.87 104 5520 16.50 16.09 108 5540 16.50 16.08 112 5560 16.50 16.02 802.11a 6 116 5580 16.50 16.17 132 5660 16.50 16.13 136 5680 16.50 16.17 140 5700 16.50 16.26 100 5500 16.50 16.04 104 5520 16.50 16.14 108 5540 16.50 16.27 112 5560 16.50 16.17 802.11n HT20 MCS0 116 5580 16.50 16.26 132 5660 16.50 16.23 136 5680 16.50 16.33 140 5700 16.50 16.18 102 5510 16.50 16.18 110 5550 16.50 16.24 5.6G 802.11n HT40 118 5590 MCS0 16.50 16.16 126 5630 16.50 16.04 134 5670 16.50 16.08 100 5500 16.50 16.15 104 5520 16.50 16.26 108 5540 16.50 16.23 112 5560 16.50 16.27 802.11ac VHT20 MCS0 116 5580 16.50 16.24 132 5660 16.50 16.16 136 5680 16.50 16.31 140 5700 16.50 16.22 102 5510 16.50 15.86 110 5550 16.50 16.12 802.11ac VHT40 118 5590 MCS0 16.50 16.01 126 5630 16.50 15.98 134 5670 16.50 16.19 106 5530 16.50 16.38 802.11ac VHT80 MCS0 122 5610 16.00 15.74 Report No.: BTL-FCC SAR-1-1809C116 Page 28 of 34 Report Version: R00

Frequency Data Rate Max. Average Band Mode Channel (MHz) (Mbps) Tune-up Power(dBm) 149 5745 16.50 16.13 153 5765 16.50 16.16 802.11a 157 5785 6 16.50 16.12 161 5805 16.50 15.86 165 5825 16.50 16.06 149 5745 16.50 15.87 153 5765 16.50 15.73 802.11n HT20 157 5785 MCS0 16.50 15.92 161 5805 16.50 16.01 165 5825 16.50 15.89 5.8G 151 5755 16.50 16.14 802.11n HT40 MCS0 159 5795 16.50 16.04 149 5745 16.50 16.05 153 5765 16.50 16.07 802.11ac VHT20 157 5785 MCS0 16.50 16.11 161 5805 16.50 16.10 165 5825 16.50 16.15 151 5755 16.50 16.08 802.11ac VHT40 MCS0 159 5795 16.50 15.98 802.11ac VHT80 155 5775 MCS0 16.50 16.24 Note: 1) The Average conducted power of WiFi is measured with RMS detector. 2) Stand-alone SAR According to the output power measurement result we can draw the conclusion that: Stand-alone SAR are required for 5G WiFi, because the output power(EIRP Power) of 5G WiFi transmitter is ≥ (Pmax=13dBm). 3) The tested channel results are marks in bold. Report No.: BTL-FCC SAR-1-1809C116 Page 29 of 34 Report Version: R00

8.2 SAR TEST RESULTS General Notes: 1) Per KDB447498 D01, all measurement SAR results are scaled to the maximum tune-up tolerance limit to demonstrate compliant. 2) Per KDB447498 D01, testing of other required channels within the operating mode of a frequency band is not required when the reported 1-g or 10-g SAR for the mid-band or highest output power channel is: ≤ 0.8 W/kg or 2.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≤ 100 MHz. When the maximum output power variation across the required test channels is > ½ dB, instead of the middle channel, the highest output power channel must be used. 3) Per KDB865664 D01,for each frequency band, repeated SAR measurement is required only when the measured SAR is ≥ 0.8W/kg; if the deviation among the repeated measurement is ≤ 20%,and the measured SAR < 1.45W/kg, only one repeated measurement is required. 4) Per KDB941225 D06, the DUT Dimension is bigger than 9 cm x 5 cm, so 10mm is chosen as the test separation distance for Hotspot mode. When the antenna-to-edge distance is greater than 2.5cm, such position does not need to be tested. 5) Per KDB648474 D04, SAR is evaluated without a headset connected to the device. When the standalone reported body-worn SAR is ≤ 1.2 W/kg, no additional SAR evaluations using a headset are required. 6) Per KDB865664 D02, SAR plot is only required for the highest measured SAR in each exposure configuration, wireless mode and frequency band combination; Plots are also required when the measured SAR is > 1.5 W/kg, or > 7.0 W/kg for occupational exposure. The published RF exposure KDB procedures may require additional plots; for example, to support SAR to peak location separation ratio test exclusion and/or volume scan post-processing. WLAN Notes: 1. For exposure conditions with multiple test positions, such as handset operating next to the ear, devices with hotspot mode, procedures for initial test position can be applied. Using the transmission mode determined by the DSSS procedure or initial test configuration, area scans are measured for all positions in an exposure condition. The test position with the highest extrapolated(peak) SAR is used as the initial test position. When the reported SAR of the initial test position is ≤ 0.4 W/kg, further SAR measurement is not required for the other (remaining) test positions. Otherwise, SAR is evaluated at the subsequent highest peak SAR position until the reported SAR result is ≤ 0.8 W/kg or all test positions are measured. 2. Justification for test configurations for WLAN per KDB Publication 248227 for 2.4GHz WIFI single transmission chain operations, the highest measured maximum output power Channel for DSSS was selected for SAR measurement. SAR for OFDM modes(2.4GHz 802.11g/n) was not required due to the maximum allowed powers and the highest reported DSSS SAR. See Section7.1.4 for more information. 3. Justification for test configurations for WLAN per KDB Publication 248227 for 5GHz WIFI single transmission chain operations, the initial test configuration was selected according to the transmission mode with the highest maximum allowed power. Other transmission modes were not investigated since the highest reported SAR for initial test configuration adjusted by the ratio of maximum output powers is less than1.2W/kg. See Section 7.1.4 for more information. Report No.: BTL-FCC SAR-1-1809C116 Page 30 of 34 Report Version: R00

8.2.1 WWAN SAR MEASUREMENT RESULT Separation Maximum Conducted Power SAR SAR Test Test Data Reported Band Channel Distance Tune-up Power Drift 1g 10g No. Position Rate 1g SAR (cm) (dBm) (dBm) (dB) (W/kg) (W/kg) T01 802.11b 6 Horizontal-Up 0.5 1 18 17.98 0.11 0.396 0.210 0.398 T02 802.11b 6 Horizontal-Down 0.5 1 18 17.98 -0.02 0.643 0.298 0.646 T03 802.11b 6 Vertical-Front 0.5 1 18 17.98 0.03 0.281 0.136 0.282 T04 802.11b 6 Vertical-Back 0.5 1 18 17.98 0.09 0.562 0.261 0.565 T05 802.11b 6 Tip Side 0.5 1 18 17.98 0.05 0.047 0.026 0.047 T06 802.11b 1 Horizontal-Down 0.5 1 18 17.98 0.01 0.878 0.417 0.882 T07 802.11b 11 Horizontal-Down 0.5 1 18 17.91 -0.07 0.800 0.359 0.817 T09 802.11ac80 58 Horizontal-Up 0.5 VHT0 18 17.79 0.02 0.389 0.129 0.408 T10 802.11ac80 58 Horizontal-Down 0.5 VHT0 18 17.79 0.05 0.813 0.226 0.853 T11 802.11ac80 58 Vertical-Front 0.5 VHT0 18 17.79 -0.07 0.255 0.114 0.268 T12 802.11ac80 58 Vertical-Back 0.5 VHT0 18 17.79 -0.03 0.379 0.151 0.398 T13 802.11ac80 58 Tip Side 0.5 VHT0 18 17.79 0.08 0.363 0.134 0.381 T15 802.11ac80 106 Horizontal-Up 0.5 VHT0 16.5 16.38 -0.04 0.463 0.155 0.476 T16 802.11ac80 106 Horizontal-Down 0.5 VHT0 16.5 16.38 0.02 1.020 0.296 1.049 T17 802.11ac80 106 Vertical-Front 0.5 VHT0 16.5 16.38 -0.08 0.294 0.129 0.302 T18 802.11ac80 106 Vertical-Back 0.5 VHT0 16.5 16.38 0.01 0.504 0.190 0.518 T19 802.11ac80 106 Tip Side 0.5 VHT0 16.5 16.38 0.02 0.373 0.138 0.383 T20 802.11ac80 122 Horizontal-Down 0.5 VHT0 16 15.74 0.05 1.080 0.303 1.147 T22 802.11ac80 155 Horizontal-Up 0.5 VHT0 16.5 16.24 0.05 0.188 0.070 0.200 T23 802.11ac80 155 Horizontal-Down 0.5 VHT0 16.5 16.24 -0.09 0.962 0.275 1.021 T24 802.11ac80 155 Vertical-Front 0.5 VHT0 16.5 16.24 0.09 0.211 0.099 0.224 T25 802.11ac80 155 Vertical-Back 0.5 VHT0 16.5 16.24 0.05 0.301 0.111 0.320 T26 802.11ac80 155 Tip Side 0.5 VHT0 16.5 16.24 0.03 0.273 0.094 0.290 Note: The value with boldface is the maximum SAR Value of each test band. Report No.: BTL-FCC SAR-1-1809C116 Page 31 of 34 Report Version: R00

8.3 MULTIPLE TRANSMITTER EVALUATION The following tables list information which is relevant for the decision if a simultaneous transmit evaluation is necessary according to FCC KDB 447498D01 General RF Exposure Guidance v06. The location of the antennas inside the EUT is shown as below picture: Note: The EUT only has one antenna and does not have synchronous transmission function. Report No.: BTL-FCC SAR-1-1809C116 Page 32 of 34 Report Version: R00

APPENDIX 1. Test Layout Specific Absorption Rate Test Layout Liquid depth in the flat Phantom (≥15cm depth) MSL_2450MHz_15.4cm MSL_5GHz_16.2cm Report No.: BTL-FCC SAR-1-1809C116 Page 33 of 34 Report Version: R00

Appendix A. SAR Plots of System Verification (Pls See BTL-FCC SAR-1-1809C116_Appendix A.) Appendix B. SAR Plots of SAR Measurement (Pls See BTL-FCC SAR-1-1809C116_Appendix B.) Appendix C. Calibration Certificate (Pls See BTL-FCC SAR-1-1809C116_Appendix C.) Appendix D. Photographs of the Test Set-Up (Pls See BTL-FCC SAR-1-1809C116_Appendix D.) End of Test Report Report No.: BTL-FCC SAR-1-1809C116 Page 34 of 34 Report Version: R00


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