11789904-S1V2 FCC Report_SAR

FCC ID: C3K1782

RF Exposure Info

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FCCID_3701020

SAR EVALUATION REPORT FCC 47 CFR § 2.1093 IEEE Std 1528-2013 For PORTABLE COMPUTING DEVICE FCC ID: C3K1782 Model Name: 1782 Report Number: 11789904-S1V2 Issue Date: 12/14/2017 Prepared for Microsoft Corporation One Microsoft Way Redmond, WA 95052 United States Prepared by UL VERIFICATION SERVICES INC. 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888 NVLAP LAB CODE 200065-0

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Revision History Rev. Date Revisions Revised By V1 10/30/2017 Initial Issue -- Section 1: Updated Highest SAR Results Section 6.3: Updated Target power and Antenna naming Section 9.1: Updated Max output power Section 9.2: Updated Band information V2 12/14/2017 Section 10.1: Updated power Coltyce Sanders Section 10.2: Updated power Section 12: Updated Table Section 12.1: Updated Highest SAR values Appendix A: Updated Top View Illustration Page 2 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Table of Contents 1. Attestation of Test Results ............................................................................................................ 5 2. Test Specification, Methods and Procedures.............................................................................. 6 3. Facilities and Accreditation........................................................................................................... 6 4. SAR Measurement System & Test Equipment ............................................................................ 7 4.1. SAR Measurement System .......................................................................................................... 7 4.2. SAR Scan Procedures .................................................................................................................. 8 4.3. Test Equipment .......................................................................................................................... 10 5. Measurement Uncertainty ........................................................................................................... 10 6. Device Under Test (DUT) Information ........................................................................................ 11 6.1. DUT Description ......................................................................................................................... 11 6.2. Wireless Technologies ............................................................................................................... 11 6.3. Maximum Output Power from Tune-up Procedure ..................................................................... 12 7. RF Exposure Conditions (Test Configurations) ........................................................................ 15 8. Dielectric Property Measurements & System Check ................................................................ 16 8.1. Dielectric Property Measurements.............................................................................................. 16 8.2. System Check............................................................................................................................. 18 9. Conducted Output Power Measurements .................................................................................. 19 9.1. Wi-Fi 2.4GHz (DTS Band) .......................................................................................................... 19 9.2. Wi-Fi 5GHz (U-NII Bands) .......................................................................................................... 20 9.3. Bluetooth .................................................................................................................................... 20 10. Measured and Reported (Scaled) SAR Results ......................................................................... 21 10.1. Wi-Fi (DTS Band) .................................................................................................................... 22 10.2. Wi-Fi (U-NII Band)................................................................................................................... 22 10.3. Bluetooth ................................................................................................................................. 22 10.4. Standalone SAR Test Exclusion Considerations & Estimated SAR ....................................... 23 11. SAR Measurement Variability ..................................................................................................... 24 12. Simultaneous Transmission SAR Analysis ............................................................................... 25 12.1. Sum of the SAR for WWAN & Wi-Fi & BT............................................................................... 25 Appendixes .............................................................................................................................................. 27 11789904-S1V2 SAR_App A Setup Photos .......................................................................................... 27 11789904-S1V1 SAR_App B System Check Plots ............................................................................... 27 11789904-S1V1 SAR_App C Highest Test Plots .................................................................................. 27 Page 3 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 11789904-S1V1 SAR_App D Tissue Ingredients .................................................................................. 27 11789904-S1V1 SAR_App E Probe Cal. Certificate ............................................................................. 27 11789904-S1V1 SAR_App F Dipole Cal. Certificates ........................................................................... 27 Page 4 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 1. Attestation of Test Results Applicant Name MICROSOFT CORPORATION FCC ID C3K1782 Model Name 1782 FCC 47 CFR § 2.1093 Applicable Standards Published RF exposure KDB procedures IEEE Std 1528-2013 SAR Limits (W/Kg) Exposure Category Extremities (hands, wrists, ankles, etc.) Peak spatial-average(1g of tissue) (10g of tissue) General population / 1.6 4 Uncontrolled exposure Equipment Class - Highest Reported SAR (W/kg) RF Exposure Conditions PCE DTS NII DSS Standalone 0.972 0.423 N/A N/A Simultaneous TX 1.351 1.351 0.928 Date Tested 6/19/2017 to 6/22/2017 Test Results Pass UL Verification Services Inc. tested the above equipment in accordance with the requirements set forth in the above standards. All indications of Pass/Fail in this report are opinions expressed by UL Verification Services Inc. based on interpretations and/or observations of test results. Measurement Uncertainties were not taken into account and are published for informational purposes only. The test results show that the equipment tested 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 (NIST Handbook 150, Annex A). This report is written to support regulatory compliance of the applicable standards stated above. Approved & Released By: Prepared By: David Weaver AJ Newcomer Program Manager Laboratory Engineer UL Verification Services Inc. UL Verification Services Inc. Page 5 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 2. Test Specification, Methods and Procedures The tests documented in this report were performed in accordance with FCC 47 CFR § 2.1093, IEEE STD 1528- 2013, the following FCC Published RF exposure KDB procedures: o 248227 D01 802.11 Wi-Fi SAR v02r02 o 447498 D01 General RF Exposure Guidance v06 o 447498 D03 Supplement C Cross-Reference v01 o 616217 D04 SAR for laptop and tablets v01r02 o 865664 D01 SAR measurement 100 MHz to 6 GHz v01r04 o 865664 D02 RF Exposure Reporting v01r02 3. Facilities and Accreditation The test sites and measurement facilities used to collect data are located at 47173 Benicia Street 47266 Benicia Street SAR Lab A SAR Lab 1 SAR Lab B SAR Lab 2 SAR Lab C SAR Lab 3 SAR Lab D SAR Lab 4 SAR Lab E SAR Lab F SAR Lab G SAR Lab H UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0. Page 6 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 4. SAR Measurement System & Test Equipment 4.1. SAR Measurement System The DASY5 system used for performing compliance tests consists of the following items: • A standard high precision 6-axis robot with controller, teach pendant and software. An arm extension for accommodating the data acquisition electronics (DAE). • An isotropic Field probe optimized and calibrated for the targeted measurement. • A data acquisition electronics (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. • The Electro-optical converter (EOC) performs the conversion from optical to electrical signals for the digital communication to the DAE. To use optical surface detection, a special version of the EOC is required. The EOC signal is transmitted to the measurement server. • The function of the measurement server is to perform the time critical tasks such as signal filtering, control of the robot operation and fast movement interrupts. • The Light Beam used is for probe alignment. This improves the (absolute) accuracy of the probe positioning. • A computer running WinXP or Win7 and the DASY5 software. • Remote control and teach pendant as well as additional circuitry for robot safety such as warning lamps, etc. • The phantom, the device holder and other accessories according to the targeted measurement. Page 7 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 4.2. SAR Scan Procedures Step 1: Power Reference Measurement The Power Reference Measurement and Power Drift Measurements are for monitoring the power drift of the device under test in the batch process. The minimum distance of probe sensors to surface determines the closest measurement point to phantom surface. The minimum distance of probe sensors to surface is 2.1 mm. This distance cannot be smaller than the distance of sensor calibration points to probe tip as defined in the probe properties. Step 2: Area Scan The Area Scan is used as a fast scan in two dimensions to find the area of high field values, before doing a fine measurement around the hot spot. The sophisticated interpolation routines implemented in DASY software can find the maximum locations even in relatively coarse grids. When an Area Scan has measured all reachable points, it computes the field maximal found in the scanned area, within a range of the global maximum. The range (in dB) is specified in the standards for compliance testing. For example, a 2 dB range is required in IEEE Standard 1528 and IEC 62209 standards, whereby 3 dB is a requirement when compliance is assessed in accordance with the ARIB standard (Japan). If only one Zoom Scan follows the Area Scan, then only the absolute maximum will be taken as reference. For cases where multiple maximums are detected, the number of Zoom Scans has to be increased accordingly. Area Scan Parameters extracted from KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz Page 8 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Step 3: Zoom Scan Zoom Scans are used to assess the peak spatial SAR values within a cubic averaging volume containing 1 g and 10 g of simulated tissue. The Zoom Scan measures points (refer to table below) within a cube whose base faces are centered on the maxima found in a preceding area scan job within the same procedure. When the measurement is done, the Zoom Scan evaluates the averaged SAR for 1 g and 10 g and displays these values next to the job’s label. Zoom Scan Parameters extracted from KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz Step 4: Power drift measurement The Power Drift Measurement measures the field at the same location as the most recent power reference measurement within the same procedure, and with the same settings. The Power Drift Measurement gives the field difference in dB from the reading conducted within the last Power Reference Measurement. This allows a user to monitor the power drift of the device under test within a batch process. The measurement procedure is the same as Step 1. Step 5: Z-Scan (FCC only) The Z Scan measures points along a vertical straight line. The line runs along the Z-axis of a one-dimensional grid. In order to get a reasonable extrapolation the extrapolated distance should not be larger than the step size in Z- direction. Page 9 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 4.3. Test Equipment The measuring equipment used to perform the tests documented in this report has been calibrated in accordance with the manufacturers’ recommendations, and is traceable to recognized national standards. Dielectric Property Measurements Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date S-Parameter Network Analyzer Agilent 8753ES MY40000980 5/10/2018 Dielectric Probe kit SPEAG DAK-3.5 2097 8/28/2017 Shorting block SPEAG DAK-3.5 Short SM DAK 200 BA 11/8/2017 Thermometer Control Company Traceable 4242 122529162 11/11/2017 System Check Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date Synthesized Signal Generator Agilent N5181A MY50140630 5/16/2018 Power Meter Keysight N1912A MY50001018 10/11/2017 Power Sensor Agilent N1921A MY53260001 10/17/2017 Power Sensor Agilent N1921A MY53070007 3/1/2018 Amplifier MITEQ AMF-4D-00400600-50-30P 1795092 N/A Directional coupler Werlatone C8060-102 2141 N/A DC Power Supply HP 1611 215-02292 N/A Lab Equipment Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date E-Field Probe (SAR Lab 1) SPEAG EX3DV4 3751 11/17/2017 Data Acquisition Electronics (SAR Lab 1) SPEAG DAE4 1259 1/20/2018 System Validation Dipole SPEAG D2450V2 748 2/8/2018 System Validation Dipole SPEAG D5GHzV2 1138 9/22/2017 Thermometer (SAR Lab 1) EXTECH 445703 80666 4/13/2018 Other Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date Power Meter Agilent N1912A MY55196004 7/8/2017 Power Meter Agilent N1912A MY55196007 7/8/2017 Power Sensor Agilent N1921A MY52260009 1/5/2018 Power Sensor Agilent N1921A MY53020038 4/13/2018 5. Measurement Uncertainty Per KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz, when the highest measured 1-g SAR within a frequency band is < 1.5 W/kg and the measured 10-g SAR within a frequency band is < 3.75 W/kg, the extensive SAR measurement uncertainty analysis described in IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval. Page 10 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 6. Device Under Test (DUT) Information 6.1. DUT Description Device Dimension Overall (Length x Width): 223 mm x 308 mm Back Cover ☒ The Back Cover is not removable. Battery Options ☒ The rechargeable battery is not user accessible. S/N IMEI Notes Test sample information 023352671757 N/A Radiated & Conducted Unit Hardware Version DV Software Version 14.2.201.151 6.2. Wireless Technologies Wireless Duty Cycle used for Frequency bands Operating mode technologies SAR testing 802.11b 2.4 GHz 802.11g 100% 802.11n (HT20) 802.11a 802.11n (HT20) Wi-Fi 802.11n (HT40) 5 GHz 100% 802.11ac (VHT20) 802.11ac (VHT40) 802.11ac (VHT80) Does this device support bands 5.60 ~ 5.65 GHz? ☒ Yes ☐ No Does this device support Band gap channel? ☒ Yes ☐ No Bluetooth 2.4 GHz Version 4.0 LE N/A Page 11 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 6.3. Maximum Output Power from Tune-up Procedure Band Freq. Max RF Output Power (dBm) Mode Ch # (GHz) (MHz) Chain 0 Chain 1 1 2412 12.5 12.5 2 2417 12.5 12.5 6 2437 12.5 12.5 802.11b 10 2457 12.5 12.5 11 2462 12.5 12.5 12 2467 10.5 10.5 13 2472 9.5 9.5 1 2412 13.5 13.5 2 2417 14.5 14.5 6 2437 14.5 14.5 2.4 802.11g 10 2457 14.5 14.5 DTS 11 2462 13.5 13.5 12 2467 10.5 10.5 13 2472 9.5 9.5 1 2412 13.5 13.5 2 2417 14.5 14.5 6 2437 14.5 14.5 802.11n 10 2457 14.5 14.5 11 2462 13.5 13.5 12 2467 10.5 10.5 13 2472 9.5 9.5 Band Freq. Max RF Output Power (dBm) Mode Ch # (GHz) (MHz) Chain 0 Chain 1 36 5180 11.5 11.5 40 5200 11.5 11.5 802.11a 44 5220 11.5 11.5 48 5240 11.5 11.5 36 5180 11.5 11.5 802.11n 40 5200 11.5 11.5 HT20 44 5220 11.5 11.5 48 5240 11.5 11.5 5.2 802.11n 38 5190 11.5 11.5 (U-NII I) HT40 46 5230 11.5 11.5 36 5180 11.5 11.5 802.11ac 40 5200 11.5 11.5 VHT20 44 5220 11.5 11.5 48 5240 11.5 11.5 802.11ac 38 5190 11.5 11.5 VHT40 46 5230 11.5 11.5 802.11ac 42 5210 9.5 9.5 VHT80 Page 12 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Band Freq. Max RF Output Power (dBm) Mode Ch # (GHz) (MHz) Chain 0 Chain 1 52 5260 14.5 14.5 56 5280 14.5 14.5 802.11a 60 5300 14.5 14.5 64 5320 14.5 14.5 52 5260 14.5 14.5 802.11n 56 5280 14.5 14.5 HT20 60 5300 14.5 14.5 64 5320 14.5 14.5 5.3 802.11n 54 5270 12.5 12.5 (U-NII 2A) HT40 62 5310 12.5 12.5 52 5260 14.5 14.5 802.11ac 56 5280 14.5 14.5 VHT20 60 5300 14.5 14.5 64 5320 14.5 14.5 802.11ac 54 5270 12.5 12.5 VHT40 62 5310 12.5 12.5 802.11ac 58 5290 9.5 9.5 VHT80 100 5500 14.5 14.5 104 5520 14.5 14.5 108 5540 14.5 14.5 112 5560 14.5 14.5 116 5580 14.5 14.5 120 5600 14.5 14.5 802.11a 124 5620 14.5 14.5 128 5640 14.5 14.5 132 5660 14.5 14.5 136 5680 14.5 14.5 140 5700 14.5 14.5 144 5720 14.5 14.5 100 5500 14.5 14.5 104 5520 14.5 14.5 5.6 108 5540 14.5 14.5 (U-NII 2C) 112 5560 14.5 14.5 116 5580 14.5 14.5 802.11n 120 5600 14.5 14.5 HT20 124 5620 14.5 14.5 128 5640 14.5 14.5 132 5660 14.5 14.5 136 5680 14.5 14.5 140 5700 14.5 14.5 144 5720 14.5 14.5 102 5510 12.5 12.5 110 5550 12.5 12.5 802.11n 118 5590 12.5 12.5 HT40 126 5630 12.5 12.5 134 5670 12.5 12.5 142 5710 12.5 12.5 Page 13 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Band Freq. Max RF Output Power (dBm) Mode Ch # (GHz) (MHz) Chain 0 Chain 1 100 5500 14.5 14.5 104 5520 14.5 14.5 108 5540 14.5 14.5 112 5560 14.5 14.5 116 5580 14.5 14.5 802.11ac 120 5600 14.5 14.5 VHT20 124 5620 14.5 14.5 128 5640 14.5 14.5 132 5660 14.5 14.5 136 5680 14.5 14.5 5.6 140 5700 14.5 14.5 (U-NII 2C) 144 5720 14.5 14.5 102 5510 12.5 12.5 110 5550 12.5 12.5 802.11ac 118 5590 12.5 12.5 VHT40 126 5630 12.5 12.5 134 5670 12.5 12.5 142 5710 12.5 12.5 106 5530 9.5 9.5 802.11ac 122 5610 11.5 11.5 VHT80 138 5690 11.5 11.5 149 5745 14.5 14.5 153 5765 14.5 14.5 802.11a 157 5785 14.5 14.5 161 5805 14.5 14.5 165 5825 14.5 14.5 149 5745 14.5 14.5 153 5765 14.5 14.5 802.11n 157 5785 14.5 14.5 HT20 161 5805 14.5 14.5 165 5825 14.5 14.5 5.8 802.11n 151 5755 12.5 12.5 (U-NII 3) HT40 159 5795 12.5 12.5 149 5745 14.5 14.5 153 5765 14.5 14.5 802.11ac 157 5785 14.5 14.5 VHT20 161 5805 14.5 14.5 165 5825 14.5 14.5 802.11ac 151 5755 12.5 12.5 VHT40 159 5795 12.5 12.5 802.11ac 155 5775 11.5 11.5 VHT80 Max. RF Output Power RF Air interface Mode (dBm) Chain 1 GFSK,EDR 4.5 Bluetooth LE 4.5 Page 14 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 7. RF Exposure Conditions (Test Configurations) Refer to Appendix A for the specific details of the antenna-to-antenna and antenna-to-edge(s) distances. Wireless RF Exposure DUT-to-User Test Antenna-to- SAR technologies Conditions Separation Position edge/surface Required WLAN Standalone 0 mm Rear N/A Yes Chain 0 WLAN/BT Standalone 0 mm Rear N/A Yes Chain 1 Page 15 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 8. Dielectric Property Measurements & System Check 8.1. Dielectric Property Measurements The temperature of the tissue-equivalent medium used during measurement must also be within 18°C to 25°C and within ± 2°C of the temperature when the tissue parameters are characterized. The dielectric parameters must be measured before the tissue-equivalent medium is used in a series of SAR measurements. The parameters should be re-measured after each 3 – 4 days of use; or earlier if the dielectric parameters can become out of tolerance; for example, when the parameters are marginal at the beginning of the measurement series. Tissue dielectric parameters were measured at the low, middle and high frequency of each operating frequency range of the test device. The dielectric constant (εr) and conductivity (σ) of typical tissue-equivalent media recipes are expected to be within ± 5% of the required target values; but for SAR measurement systems that have implemented the SAR error compensation algorithms documented in IEEE Std 1528-2013, to automatically compensate the measured SAR results for deviations between the measured and required tissue dielectric parameters, the tolerance for εr and σ may be relaxed to ± 10%. This is limited to frequencies ≤ 3 GHz. Tissue Dielectric Parameters FCC KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz Head Body Target Frequency (MHz) εr σ (S/m) εr σ (S/m) 150 52.3 0.76 61.9 0.80 300 45.3 0.87 58.2 0.92 450 43.5 0.87 56.7 0.94 835 41.5 0.90 55.2 0.97 900 41.5 0.97 55.0 1.05 915 41.5 0.98 55.0 1.06 1450 40.5 1.20 54.0 1.30 1610 40.3 1.29 53.8 1.40 1800 – 2000 40.0 1.40 53.3 1.52 2450 39.2 1.80 52.7 1.95 3000 38.5 2.40 52.0 2.73 5000 36.2 4.45 49.3 5.07 5100 36.1 4.55 49.1 5.18 5200 36.0 4.66 49.0 5.30 5300 35.9 4.76 48.9 5.42 5400 35.8 4.86 48.7 5.53 5500 35.6 4.96 48.6 5.65 5600 35.5 5.07 48.5 5.77 5700 35.4 5.17 48.3 5.88 5800 35.3 5.27 48.2 6.00 IEEE Std 1528-2013 Refer to Table 3 within the IEEE Std 1528-2013 Page 16 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Dielectric Property Measurements Results: Relative Permittivity (єr) Conductivity (σ) SAR Band Tissue Frequency Date Delta Delta Lab (MHz) Type (MHz) Measured Target Measured Target (%) (%) 2450 52.39 52.70 -0.59 2.02 1.95 3.64 1 6/19/2017 2450 Body 2400 52.41 52.77 -0.69 1.98 1.90 4.11 2480 52.30 52.66 -0.69 2.05 1.99 2.90 5200 51.18 49.02 4.41 5.31 5.29 0.29 1 6/19/2017 5200 Body 5150 51.00 49.09 3.90 5.35 5.24 2.11 5350 50.65 48.82 3.76 5.54 5.47 1.25 5600 50.23 48.48 3.61 5.91 5.76 2.60 1 6/19/2017 5600 Body 5500 50.66 48.61 4.21 5.73 5.64 1.55 5725 49.90 48.31 3.29 6.06 5.91 2.61 5800 49.99 48.20 3.71 6.20 6.00 3.33 1 6/19/2017 5800 Body 5700 50.27 48.34 3.99 6.03 5.88 2.52 5850 49.59 48.20 2.88 6.27 6.00 4.48 Page 17 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 8.2. System Check SAR system verification is required to confirm measurement accuracy, according to the tissue dielectric media, probe calibration points and other system operating parameters required for measuring the SAR of a test device. The system verification must be performed for each frequency band and within the valid range of each probe calibration point required for testing the device. The same SAR probe(s) and tissue-equivalent media combinations used with each specific SAR system for system verification must be used for device testing. When multiple probe calibration points are required to cover substantially large transmission bands, independent system verifications are required for each probe calibration point. A system verification must be performed before each series of SAR measurements using the same probe calibration point and tissue-equivalent medium. Additional system verification should be considered according to the conditions of the tissue-equivalent medium and measured tissue dielectric parameters, typically every three to four days when the liquid parameters are re-measured or sooner when marginal liquid parameters are used at the beginning of a series of measurements. System Performance Check Measurement Conditions: • The measurements were performed in the flat section of the TWIN SAM or ELI phantom, shell thickness: 2.0 ±0.2 mm (bottom plate) filled with Body or Head simulating liquid of the following parameters. • The depth of tissue-equivalent liquid in a phantom must be ≥ 15.0 cm for SAR measurements ≤ 3 GHz and ≥ 10.0 cm for measurements > 3 GHz. • The DASY system with an E-Field Probe was used for the measurements. • The dipole was mounted on the small tripod so that the dipole feed point was positioned below the center marking of the flat phantom section and the dipole was oriented parallel to the body axis (the long side of the phantom). The standard measuring distance was 10 mm (above 1 GHz) and 15 mm (below 1 GHz) from dipole center to the simulating liquid surface. • The coarse grid with a grid spacing of 15 mm was aligned with the dipole. For 5 GHz band - The coarse grid with a grid spacing of 10 mm was aligned with the dipole. • Special 7x7x7 (below 3 GHz) and/or 8x8x7 (above 3 GHz) fine cube was chosen for the cube. • Distance between probe sensors and phantom surface was set to 3 mm. For 5 GHz band - Distance between probe sensors and phantom surface was set to 2.5 mm • The dipole input power (forward power) was 100 mW. • The results are normalized to 1 W input power. System Check Results The 1-g and 10-g SAR measured with a reference dipole, using the required tissue-equivalent medium at the test frequency, must be within 10% of the manufacturer calibrated dipole SAR target. Measured Results for 1g SAR Measured Results for 10g SAR SAR Tissue Dipole Type Dipole Plot Date Lab Type _Serial # Cal. Due Data Zoom Scan Normalize Target Delta Zoom Scan Normalize Target Delta No. to 100 mW to 1 W (Ref. Value) ±10 % to 100 mW to 1 W (Ref. Value) ±10 % 1 6/19/2017 Body D2450V2 SN:748 2/8/2018 5.490 54.90 51.30 7.02 2.510 25.10 23.90 5.02 1,2 1 6/19/2017 Body D5GHzV2 SN:1138 (5.2 GHz) 9/22/2017 7.730 77.30 74.20 4.18 2.170 21.70 20.90 3.83 1 6/19/2017 Body D5GHzV2 SN:1138 (5.6 GHz) 9/22/2017 8.230 82.30 78.80 4.44 2.270 22.70 22.00 3.18 3,4 1 6/19/2017 Body D5GHzV2 SN:1138 (5.8 GHz) 9/22/2017 7.540 75.40 75.70 -0.40 2.080 20.80 21.10 -1.42 Page 18 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 9. Conducted Output Power Measurements 9.1. Wi-Fi 2.4GHz (DTS Band) Measured Results Band Freq. Meas. Avg Pwr (dBm) Max Output Power (dBm) SAR Test Mode Data Rate Ch # (GHz) (MHz) Chain 0 Chain 1 Chain 0 Chain 1 (Yes/No) 1 2412 11.4 10.7 2 2417 11.4 12.0 802.11b 1 Mbps 6 2437 11.3 11.8 12.5 12.5 Yes 10 2457 11.7 12.1 11 2462 11.2 10.7 1 2412 12.3 11.8 13.5 13.5 2.4 2 2417 12.7 12.9 DTS 802.11g 6 Mbps 6 2437 13.4 12.7 Yes 14.5 14.5 10 2457 12.5 12.7 11 2462 12.6 11.4 1 2412 13.5 13.5 802.11n 6.5 Mbps 6 2437 Not Required Not Required No (HT20) 14.5 14.5 11 2462 Note(s): 1. SAR is not required for OFDM Modes 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 2. For “Not required”, SAR Test reduction was applied from KDB 248227 §5.3.4 b). 3. Additionally, SAR is not required for Channels 12 and 13 because the tune-up limit and the measured output power for these two channels are no greater than those for the default test channels. Page 19 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 9.2. Wi-Fi 5GHz (U-NII Bands) Measured Results Band Freq. Meas. Avg Pwr (dBm) Max Output Power (dBm) SAR Test Mode Data Rate Ch # (GHz) (MHz) Chain 0 Chain 1 Chain 0 Chain 1 (Yes/No) 52 5260 12.9 13.4 802.11a 6 Mbps 60 5300 13.0 13.5 14.5 14.5 Yes 64 5320 13.0 13.0 52 5260 802.11n 6.5 Mbps 60 5300 14.5 14.5 No (HT20) 64 5320 802.11n 54 5270 5.3 13.5 Mbps 12.5 12.5 No (HT40) 62 5310 (U-NII 2A) 52 5260 802.11ac Not Required Not Required 6.5 Mbps 60 5300 14.5 14.5 No (VHT20) 64 5320 802.11ac 54 5270 13.5 Mbps 12.5 12.5 No (VHT40) 62 5310 802.11ac 29.3 Mbps 58 5290 9.5 9.5 No (VHT80) 100 5500 12.6 12.8 802.11a 6 Mbps 116 5580 12.7 12.7 14.5 14.5 Yes 140 5700 12.5 12.6 100 5500 802.11n 6.5 Mbps 116 5580 14.5 14.5 No (HT20) 140 5700 102 5510 802.11n 13.5 Mbps 110 5550 12.5 12.5 No (HT40) 5.6 134 5670 (U-NII 2C) 100 5500 802.11ac 6.5 Mbps 116 5580 Not Required Not Required 14.5 14.5 No (VHT20) 140 5700 102 5510 802.11ac 13.5 Mbps 110 5550 12.5 12.5 No (VHT40) 134 5670 106 5530 9.5 9.5 802.11ac 29.3 Mbps 122 5610 No (VHT80) 11.5 11.5 138 5690 149 5745 12.2 12.7 802.11a 6 Mbps 157 5785 12.4 13.1 14.5 14.5 Yes 165 5825 12.5 13.1 149 5745 802.11n 6.5 Mbps 157 5785 14.5 14.5 No (HT20) 165 5825 802.11n 151 5755 5.8 13.5 Mbps 12.5 12.5 No (U-NII 3) (HT40) 159 5795 149 5745 Not Required Not Required 802.11ac 6.5 Mbps 157 5785 14.5 14.5 No (VHT20) 165 5825 802.11ac 151 5755 13.5 Mbps 12.5 12.5 No (VHT40) 159 5795 802.11ac 29.3 Mbps 155 5775 11.5 11.5 No (VHT80) Note(s): 1. For “Not required”, SAR Test reduction was applied per KDB 248227. 2. When the specified maximum output power is the same for both UNII band I and UNII band 2A, begin SAR measurement in UNII band 2A; and if the highest reported SAR for UNII band 2A is o ≤ 1.2 W/kg, SAR is not required for UNII band I o > 1.2 W/kg, both bands should be tested independently for SAR. 9.3. Bluetooth Maximum tune-up tolerance limit is 4.5 dBm. This power level qualifies for exclusion of SAR testing. Refer to §10.5 for Standalone SAR Test Exclusion Considerations & Estimated SAR. Page 20 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 10. Measured and Reported (Scaled) SAR Results SAR Test Reduction criteria are as follows: KDB 447498 D01 General RF Exposure Guidance: 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 • ≤ 0.6 W/kg or 1.5 W/kg, for 1-g or 10-g respectively, when the transmission band is between 100 MHz and 200 MHz • ≤ 0.4 W/kg or 1.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≥ 200 MHz KDB 248227 D01 SAR meas for 802.11: SAR test reduction for 802.11 Wi-Fi transmission mode configurations are considered separately for DSSS and OFDM. An initial test position is determined to reduce the number of tests required for certain exposure configurations with multiple test positions. An initial test configuration is determined for each frequency band and aggregated band according to maximum output power, channel bandwidth, wireless mode configurations and other operating parameters to streamline the measurement requirements. For 2.4 GHz DSSS, either the initial test position or DSSS procedure is applied to reduce the number of SAR tests; these are mutually exclusive. For OFDM, an initial test position is only applicable to next to the ear, UMPC mini-tablet and hotspot mode configurations, which is tested using the initial test configuration to facilitate test reduction. For other exposure conditions with a fixed test position, SAR test reduction is determined using only the initial test configuration. The multiple test positions require SAR measurements in head, hotspot mode or UMPC mini-tablet configurations may be reduced according to the highest reported SAR determined using the initial test position(s) by applying the DSSS or OFDM SAR measurement procedures in the required wireless mode test configuration(s). The initial test position(s) is measured using the highest measured maximum output power channel in the required wireless mode test configuration(s). When the reported SAR for the initial test position is: • ≤ 0.4 W/kg, further SAR measurement is not required for the other test positions in that exposure configuration and wireless mode combination within the frequency band or aggregated band. DSSS and OFDM configurations are considered separately according to the required SAR procedures. • > 0.4 W/kg, SAR is repeated using the same wireless mode test configuration tested in the initial test position to measure the subsequent next closet/smallest test separation distance and maximum coupling test position, on the highest maximum output power channel, until the reported SAR is ≤ 0.8 W/kg or all required test positions are tested. o For subsequent test positions with equivalent test separation distance or when exposure is dominated by coupling conditions, the position for maximum coupling condition should be tested. o When it is unclear, all equivalent conditions must be tested. • For all positions/configurations tested using the initial test position and subsequent test positions, when the reported SAR is > 0.8 W/kg, measure the SAR for these positions/configurations on the subsequent next highest measured output power channel(s) until the reported SAR is ≤ 1.2 W/kg or all required test channels are considered. o The additional power measurements required for this step should be limited to those necessary for identifying subsequent highest output power channels to apply the test reduction. • When the specified maximum output power is the same for both UNII 1 and UNII 2A, begin SAR measurements in UNII 2A with the channel with the highest measured output power. If the reported SAR for UNII 2A is ≤ 1.2 W/kg, SAR is not required for UNII 1; otherwise treat the remaining bands separately and test them independently for SAR. • When the specified maximum output power is different between UNII 1 and UNII 2A, begin SAR with the band that has the higher specified maximum output. If the highest reported SAR for the band with the highest specified power is ≤ 1.2 W/kg, testing for the band with the lower specified output power is not required; otherwise test the remaining bands independently for SAR. To determine the initial test position, Area Scans were performed to determine the position with the Maximum Value of SAR (measured). The position that produced the highest Maximum Value of SAR is considered the worst case position; thus used as the initial test position. Page 21 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 10.1. Wi-Fi (DTS Band) Power (dBm) 1-g SAR (W/kg) RF Exposure Dist. Chain 0 Chain 1 Chain 0 Chain 1 Plot Mode Antenna Test Position Ch #. Freq. (MHz) Conditions (mm) Tune-up Tune-up No. Meas. Meas. Meas. Scaled Meas. Scaled Limit Limit 2 2417 12.5 11.4 12.5 12.0 0.587 0.756 0.403 0.452 802.11b 2 Tx Standalone 0 Rear 6 2437 12.5 11.3 12.5 11.8 0.500 0.659 0.374 0.439 1 Mbps MIMO 10 2457 12.5 11.7 12.5 12.1 0.733 0.881 0.424 0.465 2 2417 14.5 12.7 14.5 12.9 0.615 0.931 0.404 0.584 802.11g 2 Tx Standalone 0 Rear 6 2437 14.5 13.4 14.5 12.7 0.454 0.585 0.381 0.577 6 Mbps MIMO 10 2457 14.5 12.5 14.5 12.7 0.613 0.972 0.451 0.683 1 10.2. Wi-Fi (U-NII Band) Pow er (dBm) 1-g SAR (W/kg) RF Dist. Test Chain 0 Chain 1 Chain 0 Chain 1 Plot Exposure Mode Antenna Ch #. Freq. (MHz) (mm) Position Tune-up Tune-up No. Conditions Meas. Meas. Meas. Scaled Meas. Scaled Limit Limit 5.3 GHz 52 5260 14.5 12.9 14.5 13.4 0.292 0.423 0.295 0.379 2 2 Tx Standalone 802.11a 0 Rear 60 5300 14.5 13.0 14.5 13.5 0.284 0.400 0.259 0.330 MIMO 6 Mbps 64 5320 14.5 13.0 14.5 13.0 0.237 0.336 0.209 0.293 Pow er (dBm) 1-g SAR (W/kg) RF Dist. Test Chain 0 Chain 1 Chain 0 Chain 1 Plot Exposure Mode Antenna Ch #. Freq. (MHz) (mm) Position Tune-up Tune-up No. Conditions Meas. Meas. Meas. Scaled Meas. Scaled Limit Limit 5.6 GHz 100 5500 14.5 12.6 14.5 12.8 0.159 0.246 0.184 0.272 2 Tx Standalone 802.11a 0 Rear 116 5580 14.5 12.7 14.5 12.7 0.131 0.197 0.117 0.176 MIMO 6 Mbps 140 5700 14.5 12.5 14.5 12.6 0.253 0.404 0.193 0.302 3 Power (dBm) 1-g SAR (W/kg) RF Exposure Dist. Chain 0 Chain 1 Chain 0 Chain 1 Plot Mode Antenna Test Position Ch #. Freq. (MHz) Conditions (mm) Tune-up Tune-up No. Meas. Meas. Meas. Scaled Meas. Scaled Limit Limit 5.8 GHz 149 5745 14.5 12.2 14.5 12.7 0.243 0.411 0.199 0.299 4 2 Tx Standalone 802.11a 0 Rear 157 5785 14.5 12.4 14.5 13.1 0.125 0.201 0.112 0.156 MIMO 6 Mbps 165 5825 14.5 12.5 14.5 13.1 0.126 0.200 0.081 0.113 10.3. Bluetooth Maximum tune-up tolerance limit is 4.5 dBm. This power level qualifies for exclusion of SAR testing. Refer to §10.5 for Standalone SAR Test Exclusion Considerations & Estimated SAR. Page 22 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 10.4. Standalone SAR Test Exclusion Considerations & Estimated SAR The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]·[√f(GHz)] ≤ 3.0, for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. When the standalone SAR test exclusion is applied to an antenna that transmits simultaneously with other antennas, the standalone SAR must be estimated according to following to determine simultaneous transmission SAR test exclusion: • (max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]·[√f(GHz)/x] W/kg for test separation distances ≤ 50 mm; where x = 7.5 for 1-g SAR, and x = 18.75 for 10-g SAR. • 0.4 W/kg for 1-g SAR and 1.0 W/kg for 10-g SAR, when the test separation distances is > 50 mm. Max. tune-up tolerance Power Min. test SAR test RF Exposure Frequency Estimated RF Air interface separation exclusion Conditions (GHz) 1-g SAR (W/kg) (dBm) (mW) distance (mm) Result* Bluetooth Standalone 2.480 4.5 3 0 0.9 0.126 Conclusion: *: The computed value is ≤ 3; therefore, this qualifies for Standalone SAR test exclusion. Page 23 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 11. SAR Measurement Variability In accordance with published RF Exposure KDB 865664 D01 SAR measurement 100 MHz to 6 GHz. These 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 <0.8 or 2 W/kg (1-g or 10-g respectively); steps 2) through 4) do not apply. 2) When the original highest measured SAR is ≥ 0.8 or 2 W/kg (1-g or 10-g respectively), 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 or 3.6 W/kg (~ 10% from the 1-g or 10-g respective SAR limit). 4) Perform a third repeated measurement only if the original, first, or second repeated measurement is ≥ 1.5 or 3.75 W/kg (1-g or 10-g respectively) and the ratio of largest to smallest SAR for the original, first and second repeated measurements is > 1.20. Frequency Repeated Highest Band Air Interface RF Exposure Conditions Test Position SAR Measured (MHz) (Yes/No) SAR (W/kg) 2400 Wi-Fi 802.11b/g/n Standalone Rear No 0.733 5300 Wi-Fi 802.11a/n/ac Standalone Rear No 0.295 5500 Wi-Fi 802.11a/n/ac Standalone Rear No 0.253 5800 Wi-Fi 802.11a/n/ac Standalone Rear No 0.243 Note(s): Repeated Measurement is not required because measured SAR is < 0.8 W/kg. Page 24 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 12. Simultaneous Transmission SAR Analysis Simultaneous Transmission Condition Capable Transmit Configurations RF Exposure Condition Item Chain 0 Chain 1 1 DTS + DTS 2 U-NII + U-NII 3 DTS + U-NII Standalone 4 U-NII + DTS 5 U-NII + BT 6 U-NII + U-NII/BT Notes: 1. Bluetooth Radio is only supported on Chain 1. 2.  DTS Radio cannot transmit simultaneously with Bluetooth Radio. 3.  U-NII Radio can transmit simultaneously with Bluetooth Radio. 12.1. Sum of the SAR for WWAN & Wi-Fi & BT Standalone SAR (W/kg) ∑ 1-g SAR (W/kg) RF Exposure Test Position DTS U-NII BT DTS + DTS U-NII + U-NII DTS + U-NII DTS + U-NII U-NII + BT U-NII + BT conditions Chain 0 Chain 1 Chain 0 Chain 1 Chain 1 ①+② ③+④ ①+④ ②+③ ③+⑤ ③+④+⑤ ① ② ③ ④ ⑤ Standalone Rear 0.972 0.683 0.423 0.379 0.126 1.655 0.802 1.351 1.106 0.549 0.928 SAR to Peak Location Separation Ratio (SPLSR) Standalone SAR (W/kg) Calculated Volume DTS ∑ 1-g SAR SPLSR Test Position ① ② distance Scan Figure Chain 0 Chain 1 (W/kg) (≤ 0.04) (mm) (Yes/ No) Rear 0.972 0.683 + 1.655 318.0 0.01 No 1 Conclusion: Simultaneous transmission SAR measurement (Volume Scan) is not required because the SPLSR is ≤ 0.04. Page 25 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Figure (1) 2.4G Chain 0 d 2.4G Chain 1 Peak SAR X Y Z d: Calculated distance Mode ① (mm) W/kg m m m ② Chain 0 (2.4G) 1.09 0.03 0.154 -0.181 ①+② 318.0 Chain 1 (2.4G) 0.801 0.033 -0.164 -0.181 The Peak Location Separation Distance is computed by using the SQRT((X1-X2)^2+(Y1-Y2)^2+(Z1-Z2)^2) Page 26 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.

Report No.: 11789904-S1V2 Issue Date: 12/14/2017 Appendixes Refer to separated files for the following appendixes. 11789904-S1V2 SAR_App A Setup Photos 11789904-S1V1 SAR_App B System Check Plots 11789904-S1V1 SAR_App C Highest Test Plots 11789904-S1V1 SAR_App D Tissue Ingredients 11789904-S1V1 SAR_App E Probe Cal. Certificate 11789904-S1V1 SAR_App F Dipole Cal. Certificates END OF REPORT Page 27 of 27 UL Verification Services Inc. Doc. No.: 1.0 This report shall not be reproduced without the written approval of UL Verification Services Inc.


Document Created: 2017-12-18 08:40:43
Document Modified: 2017-12-18 08:40:43
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