SAR test report 1 of 6

FCC ID: BCG-A2178

RF Exposure Info

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SAR EVALUATION REPORT IEEE Std 1528-2013 For iPod touch FCC ID: BCG-A2178 Model Name: A2178 Report Number: 12646381-S1V1 Issue Date: 4/3/2019 Prepared for APPLE INC. 1 APPLE PARK WAY CUPERTINO, CA 95014 Prepared by UL VERIFICATION SERVICES INC. 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 319-4000 FAX: (510) 661-0888 NVLAP LAB CODE 200065-0

Report No.: 12646381-S1V1 Issue Date: 4/3/2019 Revision History Rev. Date Revisions Revised By V1 4/3/2019 Initial Issue -- Page 2 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 7. RF Exposure Conditions (Test Configurations) ...................................................................... 12 8. Dielectric Property Measurements & System Check .............................................................. 13 8.1. Dielectric Property Measurements ........................................................................................... 13 8.2. System Check.......................................................................................................................... 15 9. Conducted Output Power Measurements................................................................................ 16 9.1. Wi-Fi 2.4GHz (DTS Band) ....................................................................................................... 16 9.2. Wi-Fi 5GHz (U-NII Bands)........................................................................................................ 17 9.3. Bluetooth ................................................................................................................................. 19 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 11. SAR Measurement Variability ................................................................................................... 23 12. Simultaneous Transmission Conditions ................................................................................. 24 12.1.1. Sum of SAR .................................................................................................................. 24 12.1.2. SAR to Peak Location Ratio (SPLSR) ........................................................................... 24 12.2. Sum of the SAR for Wi-Fi & BT ............................................................................................ 24 Appendixes .......................................................................................................................................... 25 Appendix A: SAR Setup Photos ......................................................................................................... 25 Appendix B: SAR System Check Plots ............................................................................................... 25 Appendix C: SAR Highest Test Plots .................................................................................................. 25 Page 3 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 Appendix D: SAR Tissue Ingredients.................................................................................................. 25 Appendix E: SAR Probe Certificates................................................................................................... 25 Appendix F: SAR Dipole Certificates .................................................................................................. 25 Page 4 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 1. Attestation of Test Results Applicant Name APPLE, INC. FCC ID BCG-A2178 Model Name A2178 Applicable Standards FCC 47 CFR § 2.1093 Published RF exposure KDB procedures IEEE Std 1528-2013 SAR Limits (W/Kg) Exposure Category Peak spatial-average Extremities (hands, wrists, ankles, etc.) (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 N/A 1.141 1.168 0.242 Simultaneous TX N/A N/A 1.410 1.410 Date Tested 3/25/2019 to 4/3/2019 Test Results Pass UL Verification Services Inc. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. All samples tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. 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 the U.S. government. Approved & Released By: Prepared By: Devin Chang Chakrit Thammanavarat Senior Test Engineer Senior Test Engineer UL Verification Services Inc. UL Verification Services Inc. Page 5 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 865664 D01 SAR measurement 100 MHz to 6 GHz v01r04 o 865664 D02 RF Exposure Reporting v01r02 o 941225 D07 UMPC Mini Tablet v01r02 In addition to the above, the following information was used: o TCB workshop October 2016; RF Exposure Procedures (Bluetooth Duty Factor) o TCB workshop October 2016; RF Exposure Procedures (DUT Holder Perturbations) o TCB workshop May 2017; RF Exposure Procedures (Broadband Liquid Above 3 GHz) 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 5 SAR Lab F SAR Lab G SAR Lab H UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0. Page 6 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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. Page 9 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 Network Analyzer R&S ZNLE6 PRE0181650 7/16/2019 Dielectric Probe kit SPEAG DAK-3.5 1082 9/11/2019 Shorting block SPEAG DAK-3.5 Short SM DAK 200 DA 9/11/2019 Thermometer Traceable Calibration Control Co. 15-1078-179 150378159 6/6/2019 System Check Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date Signal Generator Rhode & Schwarz SMB100A 180970-zC 2/13/2020 Power Sensor Rhode & Schwarz NRP18A 100994-RE 2/15/2020 Lab Equipment Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date E-Field Probe (SAR Lab 1) SPEAG EX3DV4 3749 1/25/2020 E-Field Probe (SAR Lab 4) SPEAG EX3DV4 7356 4/24/2019 Data Acquisition Electronics (SAR Lab 1) SPEAG DAE4 1546 1/25/2020 Data Acquisition Electronics (SAR Lab 4) SPEAG DAE4 1547 5/3/2019 System Validation Dipole SPEAG D2450V2 706 5/18/2019 System Validation Dipole SPEAG D5GHzV2 1138 8/21/2019 Thermometer Fisherbrand 281 482-1714 181062309 2/21/2020 Other Name of Equipment Manufacturer Type/Model Serial No. Cal. Due Date Power Meter Agilent N1912A MY55196015 1/29/2020 Power Sensor Agilent N1921A MY52270022 2/6/2020 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 expanded SAR measurement uncertainty must be ≤ 30%, for a confidence interval of k = 2. If these conditions are met, extensive SAR measurement uncertainty analysis described in IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval. Therefore, the measurement uncertainty is not required. Page 10 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 6. Device Under Test (DUT) Information 6.1. DUT Description Overall (Length x Width): 123.4 mm x 58.6 mm Overall Diagonal: 131.0 mm Device Dimension Display Diagonal: 103.0 mm This is a UMPC mini-tablet device(an overall diagonal dimensions ≤ 20 cm) Back Cover The Back Cover is not removable Battery Options The rechargeable battery is not user accessible. 6.2. Wireless Technologies Wireless Duty Cycle used for SAR Frequency bands Operating mode technologies testing 802.11b 100% (802.11b) 1 2.4 GHz 802.11g 98.9% (802.11g/n 20MHz BW) 1 802.11n (HT20) 802.11a 802.11n (HT20) 98.71% (802.11a/n/ac 20MHz BW) 1 Wi-Fi 802.11n (HT40) 97.92% (802.11n/ac 40MHz BW) 1 5 GHz 802.11ac (VHT20) 95.22% (802.11ac 80MHz BW) 1 802.11ac (VHT40) 802.11ac (VHT80) Does this device support bands 5.60 ~ 5.65 GHz? ☒ Yes ☐ No Does this device support Band gap channel(s)? ☒ Yes ☐ No Bluetooth 2.4 GHz BR, EDR, LE 76.96% (DH5) Notes: 1. Duty cycle for Wi-Fi is referenced from the DTS and UNII report. Page 11 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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 Note technologies Conditions Separation Position edge/surface Required Rear < 25 mm Yes Front < 25 mm Yes Edge 1 (Top) < 25 mm Yes WLAN Standalone 5 mm Edge 2 (Right) > 25 mm No 1 Edge 3 (Bottom) > 25 mm No 1 Edge 4 (Left) < 25 mm Yes Notes: 1. SAR is not required because the distance from the antenna to the edge is > 25 mm as per KDB 941225 D07 UMPC Mini Tablet. Page 12 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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) er s (S/m) er s (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 13 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 Dielectric Property Measurements Results: Relative Permittivity (єr) Conductivity (σ) SAR Band Tissue Frequency Date Delta Delta Lab (MHz) Type (MHz) Measured Target Measured Target (%) (%) 5250 49.02 48.95 0.14 5.55 5.35 3.70 1 3/25/2019 5250 Body 5150 49.29 49.09 0.41 5.37 5.24 2.47 5350 48.68 48.82 -0.28 5.66 5.47 3.45 5600 48.17 48.48 -0.63 5.97 5.76 3.70 1 3/25/2019 5600 Body 5500 48.43 48.61 -0.38 5.88 5.64 4.10 5725 47.89 48.31 -0.87 6.13 5.91 3.75 5750 47.80 48.27 -0.98 6.20 5.94 4.52 1 3/25/2019 5750 Body 5700 48.02 48.34 -0.67 6.04 5.88 2.83 5850 47.64 48.20 -1.16 6.29 6.00 4.80 2450 53.92 52.70 2.31 2.04 1.95 4.46 1 4/3/2019 2450 Body 2400 54.04 52.77 2.40 1.98 1.90 4.32 2480 53.87 52.66 2.29 2.07 1.99 3.81 2450 50.76 52.70 -3.68 1.92 1.95 -1.54 4 3/25/2019 2450 Body 2400 50.77 52.77 -3.79 1.88 1.90 -1.05 2480 50.69 52.66 -3.74 1.94 1.99 -2.67 Page 14 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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. Refer to Appendix B for the SAR System Check Plots. 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 Norm alize Target Delta Zoom Scan Norm alize Target Delta No. to 100 m W to 1 W (Ref. Value) ±10 % to 100 m W to 1 W (Ref. Value) ±10 % 1 3/25/2019 Body D5GHzV2 SN:1138 (5.25 GHz) 8/21/2019 7.380 73.80 76.60 -3.66 2.040 20.40 21.40 -4.67 1,2 1 3/25/2019 Body D5GHzV2 SN:1138 (5.6 GHz) 8/21/2019 8.090 80.90 79.50 1.76 2.250 22.50 22.20 1.35 1 3/25/2019 Body D5GHzV2 SN:1138 (5.75 GHz) 8/21/2019 7.160 71.60 74.10 -3.37 1.980 19.80 20.60 -3.88 1 4/3/2019 Body D2450V2 SN:706 5/18/2019 5.220 52.20 50.60 3.16 2.410 24.10 23.70 1.69 3,4 4 3/25/2019 Body D2450V2 SN:706 5/18/2019 5.200 52.00 50.60 2.77 2.390 23.90 23.70 0.84 5,6 Page 15 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 9. Conducted Output Power Measurements 9.1. Wi-Fi 2.4GHz (DTS Band) Maximum Output Power (Tune-up Limit) for Wi-Fi 2.4 GHz The maximum output power specified for production units are determined for all applicable 802.11 transmission modes in each standalone and aggregated frequency band. Maximum output power is measured for the highest maximum output power configuration(s) in each frequency band according to the default power measurement procedures. For “Not required”, SAR Test reduction was applied from KDB 248227 guidance, Sec. 2.1, b), 1) when the same maximum power is specified for multiple transmission modes in a frequency band, the largest channel bandwidth, lowest order modulation, lowest data rate and lowest order 802.11b/g/n mode is used for SAR measurement, on the highest measured output power channel in the initial test configuration, for each frequency band. Additional output power measurements were not deemed necessary. SAR testing is not required for OFDM mode(s) 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. DSSS OFDM OFDM Frequency Channel 802.11b 802.11g 802.11n HT20 (MHz) (SISO) (SISO) (SISO) 1 2412 17.00 15.00 15.00 2 2417 17.00 17.00 17.00 3 2422 17.00 17.00 17.00 4 2427 17.00 17.00 17.00 5 2432 17.00 17.00 17.00 6 2437 17.00 17.00 17.00 7 2442 17.00 17.00 17.00 8 2447 17.00 17.00 17.00 9 2452 17.00 17.00 17.00 10 2457 17.00 17.00 17.00 11 2462 17.00 13.50 13.50 12 2467 15.50 11.00 11.00 13 2472 12.00 3.00 3.00 Based on the above table. DSSS 802.11b mode power will be for SAR test required. Wi-Fi 2.4GHz Measured Results Average Power (dBm) Freq. Band Mode Data Rate Ch # SAR Test (MHz) Meas Pwr Tune-up (Yes/No) 1 2412 16.20 17.00 DSSS 802.11b 1 Mbps 6 2437 16.20 17.00 Yes 2.4 GHz 11 2462 16.10 17.00 Page 16 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 9.2. Wi-Fi 5GHz (U-NII Bands) Maximum Output Power (Tune-up Limit) for Wi-Fi 2.4 GHz When the same transmission mode configurations have the same maximum output power on the same channel for the 802.11 a/g/n/ac modes, the channel in the lower order/sequence 802.11 transmission mode is selected. The maximum output power specified for production units are determined for all applicable 802.11 transmission modes in each standalone and aggregated frequency band. Maximum output power is measured for the highest maximum output power configuration(s) in each frequency band according to the default power measurement procedures. For “Not required”, SAR Test reduction was applied from KDB 248227 guidance, Sec. 2.1, b), 1) when the same maximum power is specified for multiple transmission modes in a frequency band, the largest channel bandwidth, lowest order modulation, lowest data rate and lowest order 802.11a/g/n/ac mode is used for SAR measurement, on the highest measured output power channel in the initial test configuration, for each frequency band. Additional output power measurements were not deemed necessary. 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. 802.11a/n/ac Frequency Band Channel HT20 (MHz) (SISO) 36 5180 13.00 40 5200 13.00 U-NII-1 44 5220 13.00 48 5240 13.00 52 5260 12.75 56 5280 12.75 U-NII-2A 60 5300 12.75 64 5320 12.75 100 5500 13.00 104 5520 13.00 108 5540 13.00 112 5560 13.00 116 5580 13.00 120 5600 13.00 U-NII-2C 124 5620 13.00 128 5640 13.00 132 5660 13.00 136 5680 13.00 140 5700 13.00 144 5720 13.00 149 5745 13.00 153 5765 13.00 U-NII-3 157 5785 13.00 161 5805 13.00 165 5825 13.00 Page 17 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 802.11n/11ac Frequency Channel Channel HT40 (MHz) (SISO) 38 5190 11.50 U-NII-1 46 5230 13.00 54 5270 12.75 U-NII-2A 62 5310 12.75 102 5510 13.00 110 5550 13.00 118 5590 13.00 U-NII-2C 126 5630 13.00 134 5670 13.00 142 5710 13.00 151 5755 13.00 U-NII-3 159 5795 13.00 Frequency 802.11ac VHT80 Channel Channel (MHz) (SISO) U-NII-1 42 5210 11.00 U-NII-2A 58 5290 12.00 106 5530 12.00 U-NII-2C 122 5610 13.00 138 5690 13.00 U-NII-3 155 5775 13.00 Wi-Fi 5 GHz Measured Results Average Power (dBm) Freq. Band Mode Data Rate Ch # SAR Test (MHz) Meas Pwr Tune-up (Yes/No) UNII-1 802.11n 38 5190 11.50 11.50 13.5 Mbps Yes 5.2 GHz (HT40) 46 5230 12.75 13.00 Average Power (dBm) Freq. Band Mode Data Rate Ch # SAR Test (MHz) Meas Pwr Tune-up (Yes/No) 106 5530 12.00 12.00 UNII-2C 802.11ac 29.3 Mbps 122 5610 12.50 13.00 Yes 5.5 GHz (VHT80) 138 5690 12.50 13.00 Average Power (dBm) Freq. Band Mode Data Rate Ch # SAR Test (MHz) Meas Pwr Tune-up (Yes/No) UNII-3 802.11ac 29.3 Mbps 155 5775 12.75 13.00 Yes 5.8 GHz (VHT80) Page 18 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 9.3. Bluetooth Maximum Output Power (Tune-up Limit) for Bluetooth From October 2016 TCB workshop, Power and SAR were measured with the device connected to a call box with hopping disabled using DH5 modulation. The duty cycle value from the device is taken from the Duty Cycle plot below. KDB 447498 sec.4.1.(3) at the maximum rated output power and within the tune-up tolerance range specified for the product, but not more than 2 dB lower than the maximum tune-up tolerance limit. SAR measurement is not required for the EDR and LE. When the secondary mode is ≤ ¼ dB higher than the primary mode. Max. RF Output Power RF Operating mode (dBm) Bluetooth BR 12.00 Bluetooth EDR 10.00 Bluetooth LE 8.50 Bluetooth Measured Results Average Power (dBm) Freq. Band Mode Ch # SAR Test (MHz) Meas Pwr Tune-up (Yes/No) 0 2402 11.60 12.00 BR 2.4 39 2441 11.70 12.00 Yes GFSK 78 2480 11.80 12.00 Duty Factor Measured Results T on Period Crest Factor2 Mode Type Duty Cycle1 (ms) (ms) (0.775/duty cycle) GFSK DH5 2.886 3.75 76.96% 1.01 Note(s): 1. Duty Cycle = (T on / period) * 100% 2. The reported SAR was scaled to Manufacturer limit of 77.5% transmission duty factor. Therefore, Crest Factor was 1.01. Page 19 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 Duty Cycle plots GFSK Page 20 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 10. Measured and Reported (Scaled) SAR Results SAR Test Reduction criteria are as follows: • Reported SAR(W/kg) for Wi-Fi and Bluetooth = Measured SAR * Tune-up scaling factor * Duty Cycle scaling factor • Duty Cycle scaling factor for Wi-Fi = 1 / Duty cycle (%) • Duty Cycle scaling factor for Bluetooth = 0.775 / Duty cycle (%) 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 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 10.1. Wi-Fi (DTS Band) Area Scan Power (dBm) 1-g SAR (W/kg) 10-g SAR (W/kg) RF Exposure Dist. Plot Mode Test Position Ch #. Freq. (MHz) Max. SAR Duty Cycle Tune-up Conditions (mm) Meas. Meas. Scaled Meas. Scaled No. (W/kg) Limit Rear 6 2437 1.07 100.0% 17.00 16.20 0.621 0.747 0.213 0.256 1 2412 1.88 100.0% 17.00 16.20 0.949 1.141 0.345 0.415 1 Front 6 2437 1.42 100.0% 17.00 16.20 0.929 1.117 0.340 0.409 Standalone 802.11b 5 11 2462 1.78 100.0% 17.00 16.10 0.920 1.132 0.336 0.413 Edge 1 6 2437 0.43 100.0% 17.00 16.20 0.233 0.280 0.112 0.135 Edge 4 6 2437 0.39 100.0% 17.00 16.20 0.201 0.242 0.090 0.108 10.2. Wi-Fi (U-NII Band) Area Scan Power (dBm) 1-g SAR (W/kg) 10-g SAR (W/kg) RF Exposure Dist. Plot Mode Test Position Ch #. Freq. (MHz) Max. SAR Duty Cycle Tune-up Conditions (mm) Meas. Meas. Scaled Meas. Scaled No. (W/kg) Limit Rear 46 5230 0.68 97.92% 13.00 12.75 0.422 0.457 0.099 0.107 38 5190 1.70 97.92% 11.50 11.50 0.870 0.888 0.234 0.239 802.11n Front Standalone 5 46 5230 2.09 97.92% 13.00 12.75 0.972 1.051 0.271 0.293 2 HT40 Edge 1 46 5230 0.37 97.92% 13.00 12.75 0.198 0.214 0.070 0.075 Edge 4 46 5230 0.21 97.92% 13.00 12.75 0.084 0.091 0.026 0.028 Area Scan Power (dBm) 1-g SAR (W/kg) 10-g SAR (W/kg) RF Exposure Dist. Plot Mode Test Position Ch #. Freq. (MHz) Max. SAR Duty Cycle Tune-up Conditions (mm) Meas. Meas. Scaled Meas. Scaled No. (W/kg) Limit Rear 122 5610 0.927 95.22% 13.00 12.50 0.428 0.504 0.133 0.157 106 5530 1.910 95.22% 12.00 12.00 0.852 0.895 0.237 0.249 802.11ac Front 122 5610 2.480 95.22% 13.00 12.50 0.921 1.085 0.261 0.308 3 Standalone 5 VHT80 138 5690 2.210 95.22% 13.00 12.50 0.852 1.004 0.241 0.284 Edge 1 122 5610 0.310 95.22% 13.00 12.50 0.160 0.189 0.056 0.066 Edge 4 122 5610 0.162 95.22% 13.00 12.50 0.041 0.048 0.015 0.018 Area Scan Power (dBm) 1-g SAR (W/kg) 10-g SAR (W/kg) RF Exposure Dist. Plot Mode Test Position Ch #. Freq. (MHz) Max. SAR Duty Cycle Tune-up Conditions (mm) Meas. Meas. Scaled Meas. Scaled No. (W/kg) Limit Rear 155 5775 1.020 95.22% 13.00 12.75 0.520 0.578 0.153 0.170 802.11ac Front 155 5775 2.480 95.22% 13.00 12.75 1.050 1.168 0.286 0.318 4 Standalone 5 VHT80 Edge 1 155 5775 0.387 95.22% 13.00 12.75 0.200 0.222 0.067 0.075 Edge 4 155 5775 0.171 95.22% 13.00 12.75 0.074 0.082 0.025 0.028 10.3. Bluetooth Power (dBm) 1-g SAR (W/kg) 10-g SAR (W/kg) RF Exposure Dist. Plot Mode Test Position Ch #. Freq. (MHz) Duty Cycle Tune-up Conditions (mm) Meas. Meas. Scaled Meas. Scaled No. Limit Rear 39 2441 76.96% 12.00 11.70 0.092 0.099 0.034 0.037 Front 39 2441 76.96% 12.00 11.70 0.224 0.242 0.082 0.088 5 Standalone GFSK 5 Edge 1 39 2441 76.96% 12.00 11.70 0.043 0.046 0.021 0.022 Edge 4 39 2441 76.96% 12.00 11.70 0.037 0.040 0.016 0.017 Note(s): The reported SAR was scaled to Manufacturer limit of 77.5% transmission duty factor. Page 22 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 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. First Frequency Repeated Highest Repeated Band Air Interface RF Exposure Conditions Test Position SAR Measured Measured Largest to (MHz) (Yes/No) SAR (W/kg) SAR Smallest (W/kg) SAR Ratio 2400 Wi-Fi 802.11b/g/n Standalone Front Yes 0.949 0.912 1.04 5200 Wi-Fi 802.11a/n/ac Standalone Front Yes 0.972 0.969 1.00 5500 Wi-Fi 802.11a/n/ac Standalone Front Yes 0.921 0.908 1.01 5800 Wi-Fi 802.11a/n/ac Standalone Front Yes 1.050 1.01 1.04 Note(s): Second Repeated Measurement is not required since the ratio of the largest to smallest SAR for the original and first repeated measurement is < 1.20. Page 23 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 12. Simultaneous Transmission Conditions RF Exposure Condition Item Capable Transmit Configurations Standalone 1 Wi-Fi 5GHz + Bluetooth Notes: 1. DTS Radio cannot transmit simultaneously w ith Bluetooth Radio. 2. U-NII Radio can transmit simultaneously w ith Bluetooth Radio. 12.1.1. Sum of SAR To qualify for simultaneous transmission SAR test exclusion based upon Sum of SAR the sum of the reported standalone SARs for all simultaneously transmitting antennas shall be below the applicable standalone SAR limit. If the sum of the SARs is above the applicable limit then simultaneous transmission SAR test exclusion may still apply if the requirements of the SAR to Peak Location Ratio (SPLSR) evaluation are met. 12.1.2. SAR to Peak Location Ratio (SPLSR) KDB 447498 D01 General RF Exposure Guidance explains how to calculate the SAR to Peak Location Ratio (SPLSR) between pairs of simultaneously transmitting antennas: SPLSR = (SAR1 + SAR2)1.5 /Ri Where: SAR1 is the highest reported or estimated SAR for the first of a pair of simultaneous transmitting antennas, in a specific test operating mode and exposure condition SAR2 is the highest reported or estimated SAR for the second of a pair of simultaneous transmitting antennas, in the same test operating mode and exposure condition as the first Ri is the separation distance between the pair of simultaneous transmitting antennas. When the SAR is measured, for both antennas in the pair, it is determined by the actual x, y and z coordinates in the 1-g SAR for each SAR peak location, based on the extrapolated and interpolated result in the zoom scan measurement, using the formula of [(x1-x2)2 + (y1-y2)2 + (z1-z2)2] In order for a pair of simultaneous transmitting antennas with the sum of 1-g SAR > 1.6 W/kg to qualify for exemption from Simultaneous Transmission SAR measurements, it has to satisfy the condition of: (SAR1 + SAR2)1.5 /Ri ≤ 0.04 When an individual antenna transmits at on two bands simultaneously, the sum of the highest reported SAR for the frequency bands should be used to determine SAR1.or SAR2. When SPLSR is necessary, the smallest distance between the peak SAR locations for the antenna pair with respect to the peaks from each antenna should be used. The antennas in all antenna pairs that do not qualify for simultaneous transmission SAR test exclusion must be tested for SAR compliance, according to the enlarged zoom scan and volume scan post-processing procedures in KDB Publication 865664 D01 12.2. Sum of the SAR for Wi-Fi & BT ∑ 1-g SAR Standalone SAR (W/kg) RF (W/kg) Test Exposure Position 1 2 conditions 1+2 Wi-Fi 5G BT Rear 0.578 0.099 0.677 Front 1.168 0.242 1.410 Standalone Edge 1 0.222 0.046 0.268 Edge 4 0.091 0.040 0.131 Conclusion: Simultaneous transmission SAR measurement (Volume Scan) is not required because either the sum of the 1-g SAR is < 1.6 W/kg or the SPLSR is ≤ 0.04 for all circumstances that require SPLSR calculation. Page 24 of 25 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.: 12646381-S1V1 Issue Date: 4/3/2019 Appendixes Refer to separated files for the following appendixes. Appendix A: SAR Setup Photos Appendix B: SAR System Check Plots Appendix C: SAR Highest Test Plots Appendix D: SAR Tissue Ingredients Appendix E: SAR Probe Certificates Appendix F: SAR Dipole Certificates END OF REPORT Page 25 of 25 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: 2019-05-01 23:57:11
Document Modified: 2019-05-01 23:57:11
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