SAR report part 1

FCC ID: SERCWFB124

RF Exposure Info

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FCCID_4389367

FCC SAR TEST REPORT Report No. : FA971705 FCC SAR TEST REPORT FCC ID : SERCWFB124 Equipment : Wi-Fi Module Model Name : CWFB-124 Applicant : Sintai Optical(Shenzhen)Co., Ltd. Qiwei Ind Sec,1st, 2nd, & 3RD Bldg, Lisonglang Village, Gongming Town, Bao'an District, Shenzhen, Guangdong, China Manufacturer : Sintai Optical(Shenzhen)Co., Ltd. Qiwei Ind Sec,1st, 2nd, & 3RD Bldg, Lisonglang Village, Gongming Town, Bao'an District, Shenzhen, Guangdong, China Standard : FCC 47 CFR Part 2 (2.1093) ANSI/IEEE C95.1-1992 IEEE 1528-2013 The product was installed into Digital Camera (Brand Name: KODAK, Model Name: KODAK PIXPRO WPZ2 Digital Camera) during test. The product was received on Jul. 20, 2019 and testing was started from Jul. 24, 2019 and completed on Jul. 24, 2019. We, SPORTON INTERNATIONAL INC., would like to declare that the tested sample has been evaluated in accordance with the test procedures and has been in compliance with the applicable technical standards. The report must not be used by the client to claim product certification, approval, or endorsement by TAF or any agency of government. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. EMC & Wireless Communications Laboratory, the test report shall not be reproduced except in full. Approved by: Cona Huang / Deputy Manager SPORTON INTERNATIONAL INC. EMC & Wireless Communications Laboratory No. 52, Huaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan (R.O.C.) TEL : 886-3-327-3456 Page 1 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 Table of Contents 1. Statement of Compliance ............................................................................................................................................. 4 2. Guidance Applied .......................................................................................................................................................... 4 3. Equipment Under Test (EUT) Information ................................................................................................................... 4 3.1 General Information ............................................................................................................................................... 4 4. RF Exposure Limits....................................................................................................................................................... 5 4.1 Uncontrolled Environment ...................................................................................................................................... 5 4.2 Controlled Environment.......................................................................................................................................... 5 5. Specific Absorption Rate (SAR) ................................................................................................................................... 6 5.1 Introduction ............................................................................................................................................................ 6 5.2 SAR Definition ........................................................................................................................................................ 6 6. System Description and Setup .................................................................................................................................... 7 6.1 E-Field Probe ......................................................................................................................................................... 8 6.2 Data Acquisition Electronics (DAE) ........................................................................................................................ 8 6.3 Phantom ................................................................................................................................................................. 9 6.4 Device Holder........................................................................................................................................................10 7. Measurement Procedures ...........................................................................................................................................11 7.1 Spatial Peak SAR Evaluation ................................................................................................................................ 11 7.2 Power Reference Measurement............................................................................................................................12 7.3 Area Scan .............................................................................................................................................................12 7.4 Zoom Scan ............................................................................................................................................................13 7.5 Volume Scan Procedures ......................................................................................................................................14 7.6 Power Drift Monitoring...........................................................................................................................................14 8. Test Equipment List .....................................................................................................................................................14 9. System Verification ......................................................................................................................................................15 9.1 Tissue Simulating Liquids ......................................................................................................................................15 9.2 Tissue Verification .................................................................................................................................................16 9.3 System Performance Check Results .....................................................................................................................17 10. Conducted RF Output Power (Unit: dBm) ................................................................................................................18 11. SAR Test Results .......................................................................................................................................................19 11.1 Head SAR ...........................................................................................................................................................19 11.2 Hand SAR ...........................................................................................................................................................19 12. Uncertainty Assessment ...........................................................................................................................................20 13. References ..................................................................................................................................................................20 Appendix A. Plots of System Performance Check Appendix B. Plots of High SAR Measurement Appendix C. DASY Calibration Certificate Appendix D. Test Setup Photos TEL : 886-3-327-3456 Page 2 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 History of this test report Report No. Version Description Issued Date FA971705 01 Initial issue of report Aug. 01, 2019 TEL : 886-3-327-3456 Page 3 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

seorronias. FCC SAR TEST REPORT Report No. : FA971705 1. Statement of Compliance The maximum results of Specific Absorption Rate (SAR) found during testing for Sintai Optical(Shenzhen)Co., Ltd., Wi—Fi Module, CWFB—124, are as follows. Highest SAR Summary Equipment es Head Hand Class eCls (Separation Omm) (Separation Omm) irercitte 10g SAR (Whkg) DTS 2.4GHz WLAN 0.06 0.18 Date of Testing: 2019/7/24 Sporton Lab is accredited to ISO 17025 by Taiwan Accreditation Foundation (TAF code: 1190) and the FCC designation No. TW1190 under the FCC 2.948(e) by Mutual Recognition Agreement (MRA) in FCC test. This device is in compliance with Specific Absorption Rate (SAR) for general population/uncontrolled exposure limits (1.6 W/kg for Head 1g SAR, 4.0 W/kg for Hand 10g SAR) specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEE €95.1—1992, and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528—2013 and FCC KDB publications Reviewed by: Jason Wang Report Producer: Daisy Peng 2. Guidance Applied The Specific Absorption Rate (SAR) testing specification, method, and procedure for this device is in accordance with the following standards: > FCC 47 CFR Part 2 (2.1093) ANSVIEEE C95.1—1992 IEEE 1528—2013 FCC KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04 FCC KDB 865664 D02 SAR Reporting v01r02 FCC KDB 447498 D01 General RF Exposure Guidance v06 FCC KDB 248227 D01 802.11 Wi—Fi SAR v02r02 3. Equipment Under Test (EUT) Information 3.1 General Information Wi—Fi Module CWEFB—124 SERCWEFB124 WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz WLAN: 802.11b/g/n HT20 / HT4O Pre—production TEL : 886—3—327—3456 Page 4 0f 20 FAX : 886—3—328—4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 4. RF Exposure Limits 4.1 Uncontrolled Environment Uncontrolled Environments are defined as locations where there is the exposure of individuals who have no knowledge or control of their exposure. The general population/uncontrolled exposure limits are applicable to situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment may not be made fully aware of the potential for exposure or cannot exercise control over their exposure. Members of the general public would come under this category when exposure is not employment-related; for example, in the case of a wireless transmitter that exposes persons in its vicinity. 4.2 Controlled Environment Controlled Environments are defined as locations where there is exposure that may be incurred by persons who are aware of the potential for exposure, (i.e. as a result of employment or occupation). In general, occupational/controlled exposure limits are applicable to situations in which persons are exposed as a consequence of their employment, who have been made fully aware of the potential for exposure and can exercise control over their exposure. The exposure category is also applicable when the exposure is of a transient nature due to incidental passage through a location where the exposure levels may be higher than the general population/uncontrolled limits, but the exposed person is fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. Limits for Occupational/Controlled Exposure (W/kg) Limits for General Population/Uncontrolled Exposure (W/kg) 1. Whole-Body SAR is averaged over the entire body, partial-body SAR is averaged over any 1gram of tissue defined as a tissue volume in the shape of a cube. SAR for hands, wrists, feet and ankles is averaged over any 10 grams of tissue defined as a tissue volume in the shape of a cube. TEL : 886-3-327-3456 Page 5 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 5. Specific Absorption Rate (SAR) 5.1 Introduction SAR is related to the rate at which energy is absorbed per unit mass in an object exposed to a radio field. The SAR distribution in a biological body is complicated and is usually carried out by experimental techniques or numerical modeling. The standard recommends limits for two tiers of groups, occupational/controlled and general population/uncontrolled, based on a person’s awareness and ability to exercise control over his or her exposure. In general, occupational/controlled exposure limits are higher than the limits for general population/uncontrolled. 5.2 SAR Definition The SAR definition is the time derivative (rate) of the incremental energy (dW) absorbed by (dissipated in) an incremental mass (dm) contained in a volume element (dv) of a given density (ρ). The equation description is as below: 𝐝 𝐝𝐖 𝐝 𝐝𝐖 𝐒𝐀𝐑 = ( )= ( ) 𝐝𝐭 𝐝𝐦 𝐝𝐭 𝛒𝐝𝐯 SAR is expressed in units of Watts per kilogram (W/kg) 𝛔|𝐄|𝟐 𝐒𝐀𝐑 = 𝛒 Where: σ is the conductivity of the tissue, ρ is the mass density of the tissue and E is the RMS electrical field strength. TEL : 886-3-327-3456 Page 6 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 6. System Description and Setup The DASY 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. TEL : 886-3-327-3456 Page 7 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

spontonm Las. FCC SAR TEST REPORT Report No. : FA971705 6.1 E—Field Probe The SAR measurement is conducted with the dosimetric probe (manufactured by SPEAG).The probe is specially designed and calibrated for use in liquid with high permittivity. The dosimetric probe has special calibration in liquid at different frequency. This probe has a built in optical surface detection system to prevent from collision with phantom. <ES3DV3 Probe> Construction Symmetric design with triangular core Interleaved sensors Built—in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Frequency 10 MHz — 4 GHz; Linearity: +0.2 dB (30 MHz —4 GHz) Directivity +0.2 dB in TSL (rotation around probe axis) +0.3 dB in TSL (rotation normal to probe axis) Dynamic Range 5 uW/g —>100 mWig; Linearity: +0.2 dB Dimensions Overall length: 337 mm (tip: 20 mm) Tip diameter: 3.9 mm (body: 12 mm) Distance from probe tip to dipole centers: 3.0 mm <EX3DV4 Probe> Construction Symmetric design with triangular core Built—in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Frequency 10 MHz —>6 GHz Linearity: +0.2 dB (30 MHz —6 GHz) Directivity +0.3 dB in TSL (rotation around probe axis) +0.5 dB in TSL (rotation normal to probe axis) Dynamic Range 10 uW/g—>100 mW/g Linearity: +0.2 dB (noise: typically <1 uW/g) Dimensions Overall length: 337 mm (tip: 20 mm) Tip diameter: 2.5 mm (body: 12 mm) Typical distance from probe tip to dipole centers: 1 mm 6.2 Data Acquisition Electronics (DAE) The data acquisition electronics (DAE) consists of a highly sensitive electrometer—grade preamplifier with auto—zeroing, a channel and gain—switching multiplexer, a fast 16 bit AD—converter and a command decoder and control logic unit. Transmission to the measurement server is accomplished through an optical downlink for data and status information as well as an optical uplink for commands and the clock. The input impedance of the DAE is 200 MOhm; the inputs are symmetrical and floating. Common mode rejection is above 80 dB. Fig 5.1 Photo of DAE TEL : 886—3—327—3456 Page 8 of 20 FAX : 886—3—328—4978 Issued Date ; Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 6.3 Phantom <SAM Twin Phantom> Shell Thickness 2 ± 0.2 mm; Center ear point: 6 ± 0.2 mm Filling Volume Approx. 25 liters Dimensions Length: 1000 mm; Width: 500 mm; Height: adjustable feet Measurement Areas Left Hand, Right Hand, Flat Phantom The bottom plate contains three pair of bolts for locking the device holder. The device holder positions are adjusted to the standard measurement positions in the three sections. A white cover is provided to tap the phantom during off-periods to prevent water evaporation and changes in the liquid parameters. On the phantom top, three reference markers are provided to identify the phantom position with respect to the robot. <ELI Phantom> Shell Thickness 2 ± 0.2 mm (sagging: <1%) Filling Volume Approx. 30 liters Dimensions Major ellipse axis: 600 mm Minor axis: 400 mm The ELI phantom is intended for compliance testing of handheld and body-mounted wireless devices in the frequency range of 30 MHz to 6 GHz. ELI4 is fully compatible with standard and all known tissue simulating liquids. TEL : 886-3-327-3456 Page 9 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 6.4 Device Holder <Mounting Device for Hand-Held Transmitter> In combination with the Twin SAM V5.0/V5.0c or ELI phantoms, the Mounting Device for Hand-Held Transmitters enables rotation of the mounted transmitter device to specified spherical coordinates. At the heads, the rotation axis is at the ear opening. Transmitter devices can be easily and accurately positioned according to IEC 62209-1, IEEE 1528, FCC, or other specifications. The device holder can be locked for positioning at different phantom sections (left head, right head, flat). And upgrade kit to Mounting Device to enable easy mounting of wider devices like big smart-phones, e-books, small tablets, etc. It holds devices with width up to 140 mm. Mounting Device for Hand-Held Mounting Device Adaptor for Wide-Phones Transmitters <Mounting Device for Laptops and other Body-Worn Transmitters> The extension is lightweight and made of POM, acrylic glass and foam. It fits easily on the upper part of the mounting device in place of the phone positioned. The extension is fully compatible with the SAM Twin and ELI phantoms. Mounting Device for Laptops TEL : 886-3-327-3456 Page 10 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 7. Measurement Procedures The measurement procedures are as follows: <Conducted power measurement> (a) For WWAN power measurement, use base station simulator to configure EUT WWAN transmission in conducted connection with RF cable, at maximum power in each supported wireless interface and frequency band. (b) Read the WWAN RF power level from the base station simulator. (c) For WLAN/BT power measurement, use engineering software to configure EUT WLAN/BT continuously transmission, at maximum RF power in each supported wireless interface and frequency band (d) Connect EUT RF port through RF cable to the power meter, and measure WLAN/BT output power <SAR measurement> (a) Use base station simulator to configure EUT WWAN transmission in radiated connection, and engineering software to configure EUT WLAN/BT continuously transmission, at maximum RF power, in the highest power channel. (b) Place the EUT in the positions as Appendix D demonstrates. (c) Set scan area, grid size and other setting on the DASY software. (d) Measure SAR results for the highest power channel on each testing position. (e) Find out the largest SAR result on these testing positions of each band (f) Measure SAR results for other channels in worst SAR testing position if the reported SAR of highest power channel is larger than 0.8 W/kg According to the test standard, the recommended procedure for assessing the peak spatial-average SAR value consists of the following steps: (a) Power reference measurement (b) Area scan (c) Zoom scan (d) Power drift measurement 7.1 Spatial Peak SAR Evaluation The procedure for spatial peak SAR evaluation has been implemented according to the test standard. It can be conducted for 1g and 10g, as well as for user-specific masses. The DASY software includes all numerical procedures necessary to evaluate the spatial peak SAR value. The base for the evaluation is a "cube" measurement. The measured volume must include the 1g and 10g cubes with the highest averaged SAR values. For that purpose, the center of the measured volume is aligned to the interpolated peak SAR value of a previously performed area scan. The entire evaluation of the spatial peak values is performed within the post-processing engine (SEMCAD). The system always gives the maximum values for the 1g and 10g cubes. The algorithm to find the cube with highest averaged SAR is divided into the following stages: (a) Extraction of the measured data (grid and values) from the Zoom Scan (b) Calculation of the SAR value at every measurement point based on all stored data (A/D values and measurement parameters) (c) Generation of a high-resolution mesh within the measured volume (d) Interpolation of all measured values form the measurement grid to the high-resolution grid (e) Extrapolation of the entire 3-D field distribution to the phantom surface over the distance from sensor to surface (f) Calculation of the averaged SAR within masses of 1g and 10g TEL : 886-3-327-3456 Page 11 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 7.2 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. This distance cannot be smaller than the distance of sensor calibration points to probe tip as defined in the probe properties. 7.3 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 found in the scanned area, within a range of the global maximum. The range (in dB0 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 FCC KDB 865664 D01v01r04 SAR measurement 100 MHz to 6 GHz. TEL : 886-3-327-3456 Page 12 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 7.4 Zoom Scan Zoom scans are used assess the peak spatial SAR values within a cubic averaging volume containing 1 gram and 10 gram of simulated tissue. The zoom scan measures points (refer to table below) within a cube shoes 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 gram and 10 gram and displays these values next to the job’s label. Zoom scan parameters extracted from FCC KDB 865664 D01v01r04 SAR measurement 100 MHz to 6 GHz. TEL : 886-3-327-3456 Page 13 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 7.5 Volume Scan Procedures The volume scan is used for assess overlapping SAR distributions for antennas transmitting in different frequency bands. It is equivalent to an oversized zoom scan used in standalone measurements. The measurement volume will be used to enclose all the simultaneous transmitting antennas. For antennas transmitting simultaneously in different frequency bands, the volume scan is measured separately in each frequency band. In order to sum correctly to compute the 1g aggregate SAR, the EUT remain in the same test position for all measurements and all volume scan use the same spatial resolution and grid spacing. When all volume scan were completed, the software, SEMCAD postprocessor can combine and subsequently superpose these measurement data to calculating the multiband SAR. 7.6 Power Drift Monitoring All SAR testing is under the EUT install full charged battery and transmit maximum output power. In DASY measurement software, the power reference measurement and power drift measurement procedures are used for monitoring the power drift of EUT during SAR test. Both these procedures measure the field at a specified reference position before and after the SAR testing. The software will calculate the field difference in dB. If the power drifts more than 5%, the SAR will be retested. 8. Test Equipment List Calibration Manufacturer Name of Equipment Type/Model Serial Number Last Cal. Due Date SPEAG 2450MHz System Validation Kit D2450V2 736 Aug. 31, 2018 Aug. 30, 2019 SPEAG Data Acquisition Electronics DAE4 914 Jun. 20, 2019 Jun. 19, 2020 SPEAG Dosimetric E-Field Probe ES3DV3 3170 Nov. 02, 2018 Nov. 01, 2019 RCPTWN Thermometer HTC-1 TM560-2 Nov. 12, 2018 Nov. 11, 2019 SPEAG Device Holder N/A N/A N/A N/A Anritsu Signal Generator MG3710A 6201502524 Dec. 11, 2018 Dec. 10, 2019 Agilent ENA Network Analyzer E5071C MY46104758 Sep. 19, 2018 Sep. 18, 2019 SPEAG Dielectric Probe Kit DAK-3.5 1126 Sep. 19, 2018 Sep. 18, 2019 LINE SEIKI Digital Thermometer DTM3000-spezial 3169 Sep. 11, 2018 Sep. 10, 2019 Anritsu Power Meter ML2495A 1218006 Oct. 08, 2018 Oct. 07, 2019 Anritsu Power Sensor MA2411B 1207363 Oct. 08, 2018 Oct. 07, 2019 Anritsu Power Meter ML2495A 1419002 May. 29, 2019 May. 28, 2020 Anritsu Power Sensor MA2411B 1339124 May. 29, 2019 May. 28, 2020 Agilent Spectrum Analyzer E4408B MY44211028 Aug. 28, 2018 Aug. 27, 2019 Anritsu Spectrum Analyzer MS2830A 6201396378 Jun. 27, 2019 Jun. 26, 2020 Mini-Circuits Power Amplifier ZVE-8G+ 070501814 Oct. 08, 2018 Oct. 07, 2019 Mini-Circuits Power Amplifier ZVE-8G+ 6382 Aug. 09, 2018 Aug. 08, 2019 ATM Dual Directional Coupler C122H-10 P610410z-02 Note 1 Woken Attenuator 1 WK0602-XX N/A Note 1 PE Attenuator 2 PE7005-10 N/A Note 1 PE Attenuator 3 PE7005- 3 N/A Note 1 General Note: 1. Prior to system verification and validation, the path loss from the signal generator to the system check source and the power meter, which includes the amplifier, cable, attenuator and directional coupler, was measured by the network analyzer. The reading of the power meter was offset by the path loss difference between the path to the power meter and the path to the system check source to monitor the actual power level fed to the system check source. TEL : 886-3-327-3456 Page 14 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 9. System Verification 9.1 Tissue Simulating Liquids For the measurement of the field distribution inside the SAM phantom with DASY, the phantom must be filled with around 25 liters of homogeneous body tissue simulating liquid. For head SAR testing, the liquid height from the ear reference point (ERP) of the phantom to the liquid top surface is larger than 15 cm, which is shown in Fig. 10.1. For body SAR testing, the liquid height from the center of the flat phantom to the liquid top surface is larger than 15 cm, which is shown in Fig. 10.2. Fig 10.1Photo of Liquid Height for Head SAR Fig 10.2 Photo of Liquid Height for Body SAR TEL : 886-3-327-3456 Page 15 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

seorrow cas. _FCC SAR TEST REPORT Report No. : FA971705 9.2 Tissue Verification The following tissue formulations are provided for reference only as some of the parameters have not been thoroughly verified. The composition of ingredients may be modified accordingly to achieve the desired target tissue parameters required for routine SAR evaluation. 750 41.1 . 1.4 835 40.3 . 1.4 900 40.3 . 1.4 1800, 1900, 2000 55.2 0.3 2450 55.0 0 2600 54.8 0.1 750 51.7 0.9 0.1 835 50.8 0.9 0.1 900 50.8 0.9 1800, 1900, 2000 70.2 0 0.4 0 2450 68.6 0 0 0 2600 68.1 0 0.1 0 Simulating Liquid for 5GHz, Manufactured by SPEAG Water 64~78% Mineral oil 11~18% Emulsifiers 9~15% Additives and Sait 2~8% <Tissue Dielectric Parameter Check Results> Frequency Tissue -I;qur:;j Conductivity Permittivity Conductivity Permittivity Delta (0) Delta (€:) ooo Date (MHz) Type frol] i [( (€) Target (0) Target (s)) Eo) o h 2450 HSL 22.5 1.793 39.212 1.80 39.20 —0.39 0.03 +5 2019/7/24 TEL : 886—3—327—3456 Page 16 of 20 FAX : 886—3—328—4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 9.3 System Performance Check Results Comparing to the original SAR value provided by SPEAG, the verification data should be within its specification of 10 %. Below table shows the target SAR and measured SAR after normalized to 1W input power. The table below indicates the system performance check can meet the variation criterion and the plots can be referred to Appendix A of this report. Input Measured Targeted Normalized Frequency Tissue Dipole Probe DAE Deviation Date Power 1g SAR 1g SAR 1g SAR (MHz) Type S/N S/N S/N (%) (mW) (W/kg) (W/kg) (W/kg) 2019/7/24 2450 HSL 250 D2450V2-736 ES3DV3 - SN3170 DAE4 Sn914 12.30 52.70 49.2 -6.64 Input Measured Targeted Normalized Frequency Tissue Dipole Probe DAE Deviation Date Power 10g SAR 10g SAR 10g SAR (MHz) Type S/N S/N S/N (%) (mW) (W/kg) (W/kg) (W/kg) 2019/7/24 2450 HSL 250 D2450V2-736 ES3DV3 - SN3170 DAE4 Sn914 5.72 24.60 22.88 -6.99 Fig 8.3.1 System Performance Check Setup Fig 8.3.2 Setup Photo TEL : 886-3-327-3456 Page 17 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 10. Conducted RF Output Power (Unit: dBm) <WLAN Conducted Power> General Note: 1. Per KDB 248227 D01v02r02, SAR test reduction is determined according to 802.11 transmission mode configurations and certain exposure conditions with multiple test positions. In the 2.4 GHz band, separate SAR procedures are applied to DSSS and OFDM configurations to simplify DSSS test requirements. For OFDM, in both 2.4 and 5 GHz bands, an initial test configuration must be determined for each standalone and aggregated frequency band, according to the transmission mode configuration with the highest maximum output power specified for production units to perform SAR measurements. If the same highest maximum output power applies to different combinations of channel bandwidths, modulations and data rates, additional procedures are applied to determine which test configurations require SAR measurement. When applicable, an initial test position may be applied to reduce the number of SAR measurements required for next to the ear, UMPC mini-tablet or hotspot mode configurations with multiple test positions. 2. For 2.4 GHz 802.11b DSSS, either the initial test position procedure for multiple exposure test positions or the DSSS procedure for fixed exposure position is applied; these are mutually exclusive. For 2.4 GHz and 5 GHz OFDM configurations, the initial test configuration is applied to measure SAR using either the initial test position procedure for multiple exposure test position configurations or the initial test configuration procedures for fixed exposure test conditions. Based on the reported SAR of the measured configurations and maximum output power of the transmission mode configurations that are not included in the initial test configuration, the subsequent test configuration and initial test position procedures are applied to determine if SAR measurements are required for the remaining OFDM transmission configurations. In general, the number of test channels that require SAR measurement is minimized based on maximum output power measured for the test sample(s). 3. For OFDM transmission configurations in the 2.4 GHz and 5 GHz bands, 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 for each frequency band. 4. DSSS and OFDM configurations are considered separately according to the required SAR procedures. SAR is measured in the initial test position using the 802.11 transmission mode configuration required by the DSSS procedure or initial test configuration and subsequent test configuration(s) according to the OFDM procedures.18 The initial test position procedure is described in the following: a. When the reported SAR of 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 802.11 transmission mode combinations within the frequency band or aggregated band. b. When the reported SAR of the test position is > 0.4 W/kg, SAR is repeated for the 802.11 transmission mode 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 report SAR is ≤ 0.8 W/kg or all required test position are tested. c. For all positions/configurations, when the reported SAR is > 0.8 W/kg, SAR is measured for these test positions/configurations on the subsequent next highest measured output power channel(s) until the reported SAR is ≤ 1.2 W/kg or all required channels are tested. <2.4GHz WLAN> Frequency Average power Tune-Up Mode Channel Duty Cycle % (MHz) (dBm) Limit 1 2412 15.10 16.00 802.11b 1Mbps 6 2437 17.00 17.50 100.00 11 2462 18.30 18.50 1 2412 15.50 16.50 2.4GHz WLAN 802.11g 6Mbps 6 2437 16.00 16.50 100.00 11 2462 16.10 16.50 1 2412 15.50 16.50 802.11n-HT20 6 2437 15.90 16.50 100.00 MCS0 11 2462 16.00 16.50 3 2422 14.50 15.50 802.11n-HT40 6 2437 15.00 15.50 100.00 MCS0 9 2452 14.60 15.50 TEL : 886-3-327-3456 Page 18 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113

seorron ias._FCC SAR TEST REPORT Report No. : FA971705 11. SAR Test Results General Note: 1. Per KDB 447498 DO1v06, the reported SAR is the measured SAR value adjusted for maximum tune—up tolerance. a. Tune—up scaling Factor = tune—up limit power (mW) / EUT RF power (mW), where tune—up limit is the maximum rated power among all production units. b. For SAR testing of WLAN signal with non—100% duty cycle, the measured SAR is scaled—up by the duty cycle scaling factor which is equal to "1/(duty cycle)" c.. For WLAN: Reported SAR(W/kg)= Measured SAR(W/kg)* Duty Cycle scaling factor * Tune—up scaling factor 2. Per KDB 447498 DO1v06, for each exposure position, 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 Wikg or 2.0 Wikg, for 1—g or 10—g respectively, when the transmission band is < 100 MHz > <0.6 Wikg or 1.5 Wikg, for 1—g or 10—g respectively, when the transmission band is between 100 MHz and 200 MHz > <0.4 Wikg or 1.0 Wikg, for 1—g or 10—g respectively, when the transmission band is > 200 MHz 3. Per KDB 865664 DO1v01r04, for each frequency band, repeated SAR measurement is required only when the measured SAR is 20.8W/kq. WLAN Note: 1. Per KDB 248227 DQ1v02r02, for 2.4GHz 802.11g/n SAR testing is not required 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 Wkg 2. When the reported SAR of the test position is > 0.4 W/kg, SAR is repeated for the 802.11 transmission mode 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 report SAR is < 0.8 W/kg or all required test position are tested. 3. For all positions / configurations, when the reported SAR is > 0.8 W/kg, SAR is measured for these test positions / configurations on the subsequent next highest measured output power channel(s) until the reported SAR is S 1.2 W/kg or all required channels are tested. 4. During SAR testing the WLAN transmission was verified using a spectrum analyzer. 11.1 Head SAR <WLAN SAR> Average Tune—Up Tune—up Duty guctlye Power Measured Reported Test Gap ch. uce eolEuiss t Drift 1g SAR 1g SAR LeECo MR Cc (MHz) EeeIU) (dBm) (dBm) Factor % "CR,00 (dB) (Wikg) (Wkg) 01 |WLANZ.4GHz 802.11b 1Mbps Front Face |Omm| 11 2462 18.30 18.50 1.047 100 1.000 —0.11 0.053 0.055 WLANZ.4GHz| 802.11b 1Mbps Front Face |Omm| 1 [2412] 15.10 16.00 1.230 100 1.000 0.06 0.028 0.034 WLANZ.4GHz| 802.11b 1Mbps Front Face |Omm| 6 |2437| 17.00 17.50 1.122 100 1.000 0.14 0.041 0.046 11.2 Hand SAR <WLAN SAR> WLANZ.4GHz 802.11b 1Mbps |Bottom Face|Omm . . . 1.000 0.11 WLANZ.4GHz 802.11b 1Mbps Edge 1 Omm . . . 1.000 —0.04 WLANZ.4GHz 802.11b 1Mbps Edge 2| Omm . . . 1.000 0.05 WLANZ.4GHz 802.11b 1Mbps Edge 2 |Omm . — — 1.000 |—0.19 WLANZ.4GHz 802.11b 1Mbps Edge 2 |Omm . . — 1.000 |—0.09 WLANZ.4GHz 802.11b 1Mbps Edge 3 |Omm . . — 1.000 0 WLANZ.4GHz 802.11b 1Mbps Edge 4 |Omm . . . 1.000 0.19 Test Engineer : Nick Yu TEL : 886—3—327—3456 Page 19 of 20 FAX : 886—3—328—4978 Issued Date : Aug. 01, 2019 Form version: 181113

FCC SAR TEST REPORT Report No. : FA971705 12. Uncertainty Assessment Per KDB 865664 D01 SAR measurement 100MHz to 6GHz, 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. For this device, the highest measured 1-g SAR is less 1.5W/kg and highest measured 10-g SAR is less 3.75W/kg. Therefore, the measurement uncertainty table is not required in this report. 13. References [1] FCC 47 CFR Part 2 “Frequency Allocations and Radio Treaty Matters; General Rules and Regulations” [2] ANSI/IEEE Std. C95.1-1992, “IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz”, September 1992 [3] IEEE Std. 1528-2013, “IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques”, Sep 2013 [4] SPEAG DASY System Handbook [5] FCC KDB 248227 D01 v02r02, “SAR Guidance for IEEE 802.11 (WiFi) Transmitters”, Oct 2015. [6] FCC KDB 447498 D01 v06, “Mobile and Portable Device RF Exposure Procedures and Equipment Authorization Policies”, Oct 2015 [7] FCC KDB 865664 D01 v01r04, "SAR Measurement Requirements for 100 MHz to 6 GHz", Aug 2015. [8] FCC KDB 865664 D02 v01r02, “RF Exposure Compliance Reporting and Documentation Considerations” Oct 2015. TEL : 886-3-327-3456 Page 20 of 20 FAX : 886-3-328-4978 Issued Date : Aug. 01, 2019 Form version: 181113


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Document Modified: 2019-08-07 10:41:47
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