SAR report part 1

FCC ID: A2HRCT6A03W

RF Exposure Info

Download: PDF
FCCID_4024172

TEST REPORT Report Reference No. .................... : TRE18090044 R/C……….: 28096 FCC ID ............................................. : A2HRCT6A03W Applicant’s name ........................... : Alco Electronics Ltd 11/F Metropole Square, 2 On Yiu Street, Sha Tin, New Territories, Address ............................................. : Hong Kong Manufacturer.....................................: Alco Electronics Ltd 11/F Metropole Square, 2 On Yiu Street, Sha Tin, New Territories, Address..............................................: Hong Kong Test item description .................... : Tablet Trade Mark ....................................... : Venturer / RCA Model/Type reference ....................... : CT9A03W13 Listed Model(s) ................................. : CT9B03W13,RCT6A03W13,RCT6B03W13 Standard ......................................... : FCC 47 CFR Part2.1093 IEEE 1528: 2013 Date of receipt of test sample……....: Sep.12, 2018 Date of testing………………………..: Sep.13, 2018 - Sep.21, 2018 Date of issue………………………....: Sep.25, 2018 Result .................. …………………...: PASS Compiled by ( position+printedname+signature) ... : File administrators:Xiaodong Zhao Supervised by ( position+printedname+signature) ... : Test Engineer: Xiaodong Zhao Approved by ( position+printedname+signature) ... : Manager: Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. The test report merely correspond to the test sample. Page: 1 of 29

Report No: TRE18090044 Page: 2 of 29 Issued: 2018-09-25 Contents 1. Test Standards and Report version 3 1.1. Test Standards 3 1.2. Report version 3 2. Summary 4 2.1. Client Information 4 2.2. Product Description 4 3. Test Environment 6 3.1. Test laboratory 6 3.2. Test Facility 6 3.3. Environmental conditions 6 4. Equipments Used during the Test 7 5. Measurement Uncertainty 8 6. SAR Measurements System Configuration 9 6.1. SAR Measurement Set-up 9 6.2. DASY5 E-field Probe System 10 6.3. Phantoms 11 6.4. Device Holder 11 7. SAR Test Procedure 12 7.1. Scanning Procedure 12 7.2. Data Storage and Evaluation 14 8. Position of the wireless device in relation to the phantom 16 8.1. Body-supported device 16 9. System Check 17 9.1. Tissue Dielectric Parameters 17 9.2. SAR System Check 18 10. SAR Exposure Limits 21 11. Conducted Power Measurement Results 22 12. Maximum Tune-up Limit 23 13. RF Exposure Conditions (Test Configurations) 24 13.1. Antenna Location 24 13.2. Standalone SAR test exclusion considerations 25 13.3. Required Test Configurations 25 14. SAR Measurement Results 26 15. SAR Measurement Variability 28 16. TestSetup Photos 29 17. External and Internal Photos of the EUT 29 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 3 of 29 Issued: 2018-09-25 1 . Test Standards and Report version 1.1. Test Standards The tests were performed according to following standards: FCC 47 Part 2.1093: Radiofrequency Radiation Exposure Evaluation:Portable Devices 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. KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04: SAR Measurement Requirements for 100 MHz to 6 GHz KDB 865664 D02 RF Exposure Reporting v01r02: RF Exposure Compliance Reporting and Documentation Considerations KDB 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Device RF Exposure Procedures and Equipment Authorization Policies KDB 248227 D01 802 11 Wi-Fi SAR v02r02: SAR Measurement Proceduresfor802.11 a/b/g Transmitters KDB 616217 D04 SAR for laptop and tablets v01r02: SAR Evaluation Requirements for Laptop, Notebook, Netbook and Tablet Computers 1.2. Report version Revision No. Date of issue Description N/A 2018-09-25 Original Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 4 of 29 Issued: 2018-09-25 2. Summary 2.1. Client Information Applicant: Alco Electronics Ltd 11/F Metropole Square, 2 On Yiu Street, Sha Tin, New Territories, Hong Address: Kong Manufacturer: Alco Electronics Ltd 11/F Metropole Square, 2 On Yiu Street, Sha Tin, New Territories, Hong Address: Kong 2.2. Product Description Name of EUT: Tablet Trade Mark: Venturer / RCA Model No.: CT9A03W13 Listed Model(s): CT9B03W13,RCT6A03W13,RCT6B03W13 Power supply: DC 3.7V Device Category: Portable Product stage: Production unit RF Exposure Environment: General Population / Uncontrolled Hardware version: V1 Software version: V1 Maximum SAR Value Separation Distance: Body: 0mm Max Report SAR Value (1g): Body: 1.23 W/kg WIFI 2.4G Supported type: 802.11b/802.11g/802.11n(HT20)/802.11n(HT40) Modulation: DSSS for 802.11b OFDM for 802.11g/802.11n(HT20)/802.11n(HT40) Operation frequency: 2412MHz~2462MHz for 802.11b/802.11g/802.11n(HT20) 2422MHz~2452MHz for 802.11n(HT40) Channel number: 11 for 802.11b/802.11g/802.11n(HT20) 7 for 802.11n(HT40) Channel separation: 5MHz Antenna type: build in Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 5 of 29 Issued: 2018-09-25 Bluetooth Version: Supported BT4.0+EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: build in Bluetooth Version: Supported BT4.0+BLE Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: build in Remark: 1. The EUT battery must be fully charged and checked periodically during the test to ascertain uniform power Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 6 of 29 Issued: 2018-09-25 3. Test Environment 3.1. Test laboratory Laboratory:Shenzhen Huatongwei International Inspection Co., Ltd. Address: 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China 3.2. Test Facility CNAS-Lab Code: L1225 Shenzhen Huatongwei International Inspection Co., Ltd. has been assessed and proved to be in compliance with CNAS-CL01 Accreditation Criteria for Testing and Calibration Laboratories (identical to ISO/IEC17025: 2005 General Requirements) for the Competence of Testing and Calibration Laboratories. A2LA-Lab Cert. No.: 3902.01 Shenzhen Huatongwei International Inspection Co., Ltd. EMC Laboratory has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing. FCC-Registration No.: 762235 Shenzhen Huatongwei International Inspection Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the FCC (Federal Communications Commission). The acceptance letter from the FCC is maintained in our files. Registration 762235. IC-Registration No.: 5377B-1 Two 3m Alternate Test Site of Shenzhen Huatongwei International Inspection Co., Ltd. has been registered by Certification and Engineering Bureau of Industry Canada for the performance of radiated measurements with Registration No. 5377B-1. ACA Shenzhen Huatongwei International Inspection Co., Ltd. EMC Laboratory can also perform testing for the Australian C-Tick mark as a result of our A2LA accreditation. 3.3. Environmental conditions During the measurement the environmental conditions were within the listed ranges: Ambient temperature 18 °C to 25 °C Ambient humidity 30%RH to 70%RH Air Pressure 950-1050mbar Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 7 of 29 Issued: 2018-09-25 4. Equipments Used during the Test Calibration Test Equipment Manufacturer Type/Model Serial Number Last Cal. Due Date Data Acquisition SPEAG DAE4 1549 2018/04/25 2019/04/24 Electronics DAEx E-field Probe SPEAG EX3DV4 7494 2018/02/26 2019/02/25 System Validation SPEAG D2450V2 1009 2018/02/05 2021/02/04 Dipole Dielectric SPEAG DAK-3.5 1267 2018/03/01 2019/02/28 Assessment Kit Network analyzer Agilent N9923A MY51491493 2018/08/31 2019/08/30 ROHDE & Signal Generator SMB100A 175248 2018/08/31 2019/08/30 SCHWARZ Power meter Agilent N1914A MY52090010 2018/03/22 2019/03/21 Power sensor Agilent E9304A MY52140008 2018/03/22 2019/03/21 Power sensor Agilent E9301H MY54470001 2018/03/22 2019/03/21 Power Amplifier Mini-Circuits ZHL-42W QA1202003 2017/11/27 2018/11/26 Dual Directional Agilent 772D MY46151257 2018/03/22 2019/03/21 Coupler Attenuator MCL BW-S10W5+ N/A N/A N/A Attenuator MCL BW-S10W5+ N/A N/A N/A Attenuator MCL BW-S10W5+ N/A N/A N/A Note: 1. The DAE ,Probe and Dipole calibration reference to the Appendix B and C. 2. Referring to KDB865664 D01, the dipole calibration interval can be extended to 3 years with justifcatio. The dipole are also not physically damaged or repaired during the interval. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 8 of 29 Issued: 2018-09-25 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. 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. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 9 of 29 Issued: 2018-09-25 6. SAR Measurements System Configuration 6.1. SAR Measurement Set-up The DASY5 system for performing compliance tests consists of the following items: A standard high precision 6-axis robot (Stäubli RX family) with controller and software. An arm extension for accommodating the data acquisition electronics (DAE). A dosimetric probe, i.e. an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system. A data acquisition electronic (DAE) which performs the signal amplification, signal multiplexing, AD- conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC. A unit to operate the optical surface detector which is connected to the EOC. The Electro-Optical Coupler (EOC) performs the conversion from the optical into a digital electric signal of the DAE. The EOC is connected to the DASY5 measurement server. The DASY5 measurement server, which performs all real-time data evaluation for field measurements and surface detection, controls robot movements and handles safety operation. A computer operating Windows 2003. DASY5 software and SEMCAD data evaluation software. Remote control with teach panel and additional circuitry for robot safety such as warning lamps, etc. The generic twin phantom enabling the testing of left-hand and right-hand usage. The device holder for handheld Mobile Phones. Tissue simulating liquid mixed according to the given recipes. System validation dipoles allowing to validate the proper functioning of the system. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 10 of 29 Issued: 2018-09-25 6.2. DASY5 E-field Probe System The SAR measurements were conducted with the dosimetric probe EX3DV4 (manufactured by SPEAG), designed in the classical triangular configuration and optimized for dosimetric evaluation.  Probe Specification Construction Symmetrical design with triangular core Interleaved sensors Built-in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration ISO/IEC 17025 calibration service available. Frequency 4 MHz to 10 GHz; Linearity: ± 0.2 dB (30 MHz to 10 GHz) Directivity ± 0.1 dB in HSL (rotation around probe axis) ± 0.3 dB in tissue material (rotation normal to probe axis) Dynamic Range 10 µW/g to > 100 W/kg; Linearity: ±0.2 dB (noise: typically <1 µW/g) Dimensions Overall length: 337 mm (Tip: 20 mm) Tip diameter: 2.5 mm (Body: 12 mm) Distance from probe tip to dipole centers: 1.0 mm Application General dosimetry up to 6 GHz Dosimetry in strong gradient fields Compliance tests of Mobile Phones Compatibility DASY3, DASY4, DASY52 SAR and higher, EASY4/MRI  Isotropic E-Field Probe The isotropic E-Field probe has been fully calibrated and assessed for isotropicity, and boundary effect within a controlled environment. Depending on the frequency for which the probe is calibrated the method utilized for calibration will change. The E-Field probe utilizes a triangular sensor arrangement as detailed in the diagram below: Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 11 of 29 Issued: 2018-09-25 6.3. Phantoms Phantom for compliance testing of handheld and body-mounted wireless devices in the frequency range of 30 MHz to 6 GHz. ELI isfully compatible with standard and all known tissuesimulating liquids. ELI has been optimized regarding its performance and can beintegrated into our standard phantom tables. A cover prevents evaporation ofthe liquid. Reference markings on the phantom allow installation of thecomplete setup, including all predefined phantom positions and measurementgrids, by teaching three points. The phantom is compatible with all SPEAGdosimetric probes and dipoles. ELI4 Phantom 6.4. Device Holder The device was placed in the device holder (illustrated below) that is supplied by SPEAG as an integral part of the DASY system. The DASY device holder is designed to cope with the different positions given in the standard. It has two scales for device rotation (with respect to the body axis) and device inclination (with respect to the line between the ear reference points). The rotation centers for both scales is the ear reference point (ERP). Thus the device needs no repositioning when changing the angles. Device holder supplied by SPEAG Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 12 of 29 Issued: 2018-09-25 7. SAR Test Procedure 7.1. Scanning Procedure The DASY5 installation includes predefined files with recommended procedures for measurements and validation. They are read-only document files and destined as fully defined but unmeasured masks. All test positions (head or body-worn) are tested with the same configuration of test steps differing only in the grid definition for the different test positions. The “reference” and “drift” measurements are located at the beginning and end of the batch process. They measure the field drift at one single point in the liquid over the complete procedure. The indicated drift is mainly the variation of the DUT’s output power and should vary max. ± 5 %. The “surface check” measurement tests the optical surface detection system of the DASY5 system by repeatedly detecting the surface with the optical and mechanical surface detector and comparing the results. The output gives the detecting heights of both systems, the difference between the two systems and the standard deviation of the detection repeatability. Air bubbles or refraction in the liquid due to separation of the sugar-water mixture gives poor repeatability (above ± 0.1mm). To prevent wrong results tests are only executed when the liquid is free of air bubbles. The difference between the optical surface detection and the actual surface depends on the probe and is specified with each probe (It does not depend on the surface reflectivity or the probe angle to the surface within ± 30°.) Area Scan The Area Scan is used as a fast scan in two dimensions to find the area of high field values before running a detailed measurement around the hot spot.Before starting the area scan a grid spacing of 15 mm x 15 mm is set. During the scan the distance of the probe to the phantom remains unchanged. After finishing area scan, the field maxima within a range of 2 dB will be ascertained. Zoom Scan After the maximum interpolated values were calculated between the points in the cube, the SAR was averaged over the spatial volume (1g or 10g) using a 3D-Spline interpolation algorithm. The 3D-spline is composed of three one-dimensional splines with the “Not a knot” condition (in x, y, and z directions). The volume was then integrated with the trapezoidal algorithm. Spatial Peak Detection The procedure for spatial peak SAR evaluation has been implemented and can determine values of masses of 1g and 10g, as well as for user-specific masses.The DASY5 system allows evaluations that combine measured data and robot positions, such as: • maximum search • extrapolation • boundary correction • peak search for averaged SAR During a maximum search, global and local maxima searches are automatically performed in 2-D after each Area Scan measurement with at least 6 measurement points. It is based on the evaluation of the local SAR gradient calculated by the Quadratic Shepard’s method. The algorithm will find the global maximum and all local maxima within -2 dB of the global maxima for all SAR distributions. Extrapolation routines are used to obtain SAR values between the lowest measurement points and the inner phantom surface. The extrapolation distance is determined by the surface detection distance and the probe sensor offset. Several measurements at different distances are necessary for the extrapolation. Extrapolation routines require at least 10 measurement points in 3-D space. They are used in the Zoom Scan to obtain SAR values between the lowest measurement points and the inner phantom surface. The routine uses the modified Quadratic Shepard’s method for extrapolation. A Z-axis scan measures the total SAR value at the x-and y-position of the maximum SAR value found during the cube scan. The probe is moved away in z-direction from the bottom of the SAM phantom in 5mm steps. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 13 of 29 Issued: 2018-09-25 Table 1: Area and Zoom Scan Resolutions per FCC KDB Publication 865664 D01v04 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 14 of 29 Issued: 2018-09-25 7.2. Data Storage and Evaluation Data Storage The DASY5 software stores the acquired data from the data acquisition electronics as raw data (in microvolt readings from the probe sensors),s together with all necessary software parameters for the data evaluation (probe calibration data, liquid parameters and device frequency and modulation data) in measurement files with the extension “.DA4”. The software evaluates the desired unit and format for output each time the data is visualized or exported. This allows verification of the complete software setup even after the measurement and allows correction of incorrect parameter settings. For example, if a measurement has been performed with a wrong crest factor parameter in the device setup, the parameter can be corrected afterwards and the data can be re-evaluated. The measured data can be visualized or exported in different units or formats, depending on the selected probe type ([V/m], [A/m], [°C], [W/kg], [mW/cm²], [dBrel], etc.). Some of these units are not available in certain situations or show meaningless results, e.g., a SAR output in a lossless media will always be zero. Raw data can also be exported to perform the evaluation with other software packages. Data Evaluation The SEMCAD software automatically executes the following procedures to calculate the field units from the microvolt readings at the probe connector. The parameters used in the evaluation are stored in the configuration modules of the software: Probe parameters: Sensitivity: Normi, ai0, ai1, ai2 Conversion factor: ConvFi Diode compression point: Dcpi Device parameters: Frequency: f Crest factor: cf Media parameters: Conductivity: σ Density: ρ These parameters must be set correctly in the software. They can be found in the component documents or they can be imported into the software from the configuration files issued for the DASY5 components. In the direct measuring mode of the multimeter option, the parameters of the actual system setup are used. In the scan visualization and export modes, the parameters stored in the corresponding document files are used. The first step of the evaluation is a linearization of the filtered input signal to account for the compression characteristics of the detector diode. The compensation depends on the input signal, the diode type and the DC-transmission factor from the diode to the evaluation electronics. If the exciting field is pulsed, the crest factor of the signal must be known to correctly compensate for peak power. The formula for each channel can be given as: Vi: compensated signal of channel ( i = x, y, z ) Ui: input signal of channel ( i = x, y, z ) cf: crest factor of exciting field (DASY parameter) dcpi: diode compression point (DASY parameter) From the compensated input signals the primary field data for each channel can be evaluated: Vi: compensated signal of channel ( i = x, y, z ) Normi: sensor sensitivity of channel ( i = x, y, z ), [mV/(V/m)2] for E-field Probes ConvF: sensitivity enhancement in solution aij: sensor sensitivity factors for H-field probes f: carrier frequency [GHz] Ei: electric field strength of channel i in V/m Hi: magnetic field strength of channel i in A/m Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 15 of 29 Issued: 2018-09-25 The RSS value of the field components gives the total field strength (Hermitian magnitude): The primary field data are used to calculate the derived field units. SAR: local specific absorption rate in W/kg Etot: total field strength in V/m σ: conductivity in [mho/m] or [Siemens/m] ρ: equivalent tissue density in g/cm3 Note that the density is normally set to 1 (or 1.06), to account for actual brain density rather than the density of the simulation liquid. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 16 of 29 Issued: 2018-09-25 8. Position of the wireless device in relation to the phantom 8.1. Body-supported device Other devices that fall into this category include tablet type portable computers and credit card transaction authorisation terminals, point-of-sale and/or inventory terminals. Where these devices may be torso or limb-supported, the same principles for body-supported devices are applied. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 17 of 29 Issued: 2018-09-25 9. System Check 9.1. Tissue Dielectric Parameters The liquid has previously been proven to be suited for worst-case. It’s satisfying the latest tissue dielectric parameters requirements proposed by the KDB865664. Tissue dielectric parameters for head and body phantoms Target Frequency Body (MHz) εr σ(s/m) 2450 52.7 1.95 Check Result: Dielectric performance of Body tissue simulating liquid εr σ(s/m) Frequency Delta Delta Temp Limit Date (MHz) (εr) (σ) (℃) Target Measured Target Measured 2450 52.70 53.03 1.95 2.00 0.63% 2.56% ±5% 22 2018-09-21 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 18 of 29 Issued: 2018-09-25 9.2. SAR System Check The purpose of the system check is to verify that the system operates within its specifications at the decice test frequency.The system check is simple check of repeatability to make sure that the system works correctly at the time of the compliance test; System check results have to be equal or near the values determined during dipole calibration with the relevant liquids and test system (±10%). System check is performed regularly on all frequency bands where tests are performed with the DASY5 system. System Performance Check Setup Photo of Dipole Setup Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 19 of 29 Issued: 2018-09-25 Check Result: Bdoy 1g SAR 10g SAR Frequency Delta Delta Temp (MHz) Limit Date Target Normalize Measured Target Normalize Measured (1g) (10g) (℃) 1W to 1W 250mW 1W to 1W 250mW 2450 49.40 50.00 12.50 23.30 23.32 5.83 1.21% 0.09% ±10% 22 2018-09-21 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 20 of 29 Issued: 2018-09-25 Plots of System Performance Check SystemPerformanceCheck-Body 2450MHz DUT: D2450V2; Type: D2450V2; Serial: 1009 Date:2018-09-21 Communication System: UID 0, CW (0); Frequency: 2450 MHz 3 Medium parameters used: f = 2450 MHz; σ = 2.001 S/m; εr = 53.03; ρ = 1000 kg/m Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7494; ConvF(8.08, 8.08, 8.08); Calibrated: 2/26/2018;  Sensor-Surface: 1.4mm (Mechanical Surface Detection), z = 1.0, 31.0  Electronics: DAE4 Sn1549; Calibrated: 4/25/2018  Phantom: ELI V8.0 ; Type: QD OVA 004 AA ; Serial: 2078  DASY52 52.10.0(1446); SEMCAD X 14.6.10(7417) Body/d=10mm,Pin=250mW/Area Scan (71x71x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 21.1 W/kg Body/d=10mm,Pin=250mW/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 105.6 V/m; Power Drift = -0.01 dB Peak SAR (extrapolated) = 25.7 W/kg SAR(1 g) = 12.5 W/kg; SAR(10 g) = 5.83 W/kg Maximum value of SAR (measured) = 20.7 W/kg Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 21 of 29 Issued: 2018-09-25 10. SAR Exposure Limits SAR assessments have been made in line with the requirements of FCC 47 CFR § 2.1093. Limit (W/kg) Type Exposure General Population / Occupational / Uncontrolled Exposure Environment Controlled Exposure Environment Spatial Average SAR 0.08 0.4 (whole body) Spatial Peak SAR 1.6 8.0 (1g cube tissue for head and trunk) Spatial Peak SAR 4.0 20.0 (10g for limb) Population/Uncontrolled Environments: are defined as locations where there is the exposure of individual who have no knowledge or control of their exposure. Occupational/Controlled Environments: are defined as locations where there is exposure that may be incurred by people who are aware of the potential for exposure (i.e. as a result of employment or occupation). Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 22 of 29 Issued: 2018-09-25 11. Conducted Power Measurement Results WLAN Conducted Power For 2.4GHz WLAN SAR testing, highest average RF output power channel for the lowest data rate for 802.11b were for SAR evaluation. 802.11g/n were not investigated since the average putput powers over all channels and data rates were not more than 0.25dB higher than the tested channel in the lowest data rate of 802.11b mode. 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. WIFI 2.4G Conducted Peak Power Conducted Average Power Mode Channel Frequency (MHz) (dBm) (dBm) 1 2412 13.45 11.39 802.11b 6 2437 13.91 11.91 1Mbps 11 2462 14.16 12.05 1 2412 18.38 14.40 802.11g 6 2437 18.49 14.72 6Mbps 11 2462 18.87 14.83 802.11n 1 2412 18.15 13.97 (HT20) 6 2437 18.08 14.72 MCS0 11 2462 19.06 14.85 802.11n 3 2422 18.31 14.35 (HT40) 6 2437 18.10 14.77 MCS0 9 2452 18.75 14.69 Bluetooth Conducted Power Bluetooth Mode Channel Frequency (MHz) Conducted power (dBm) 0 2402 -1.21 GFSK 39 2441 -2.24 78 2480 -2.75 0 2402 -1.32 π/4QPSK 39 2441 -2.33 78 2480 -2.87 0 2402 -1.22 8DPSK 39 2441 -2.18 78 2480 -2.68 0 2402 -1.37 GFSK(BLE) 19 2440 -2.27 39 2480 -2.88 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 23 of 29 Issued: 2018-09-25 12. Maximum Tune-up Limit WLAN 2.4G Maximum Tune-up (dBm) Mode Burst Average Power 802.11b 12.50 802.11g 15.00 802.11n(HT20) 15.00 802.11n(HT40) 15.00 Note: 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. Bluetooth Mode Maximum Tune-up (dBm) GFSK -1.00 π/4QPSK -1.00 8DPSK -1.00 GFSK(BLE) -1.00 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 24 of 29 Issued: 2018-09-25 13. RF Exposure Conditions (Test Configurations) 13.1. Antenna Location Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 25 of 29 Issued: 2018-09-25 13.2. Standalone SAR test exclusion considerations KDB 447498 with KDB 616217: a) For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion. b) For 100 MHz to 6 GHz and test separation distances > 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following : 1) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance - 50 mm)·(f(MHz)/150)]} mW, for 100 MHz to 1500 MHz 2) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance - 50 mm)·10]} mW, for > 1500 MHz and ≤6 GHz Antennas ≤ 50mm to adjacent edges Tx Frequency Output Power separation distances (mm) Calculated Threshold Value Interface (MHz) dBm mW Rear Left Right Top Bottom Rear Left Right Top Bottom WIFI 2.4G 5.6 0.6 5.6 2437 12.50 17.78 5 131 45 5 152 > 50 mm > 50 mm 802.11b MEASURE EXEMPT MEASURE WIFI 2.4G 9.9 1.1 9.9 2437 15.00 31.62 5 131 45 5 152 > 50 mm > 50 mm 802.11n(HT40) MEASURE EXEMPT MEASURE 0.4 0 0.4 Bluetooth 2441 -1.00 0.79 5 131 45 5 152 > 50 mm > 50 mm EXEMPT EXEMPT EXEMPT Antennas > 50mm to adjacent edges Tx Frequency Output Power separation distances (mm) Calculated Threshold Value Interface (MHz) dBm mW Rear Left Right Top Bottom Rear Left Right Top Bottom 906 mW 1116 mW WIFI 2.4G 2462 12.50 17.78 5 131 45 5 152 ≤ 50mm ≤ 50mm ≤ 50mm EXEMPT EXEMPT WIFI 2.4G 906 mW 1116 mW 2437 15.00 31.62 5 131 45 5 152 ≤ 50mm ≤ 50mm ≤ 50mm 802.11n(HT40) EXEMPT EXEMPT 906 mW 1116 mW Bluetooth 2441 -1.00 0.79 5 131 45 5 152 ≤ 50mm ≤ 50mm ≤ 50mm EXEMPT EXEMPT 13.3. Required Test Configurations The table below identifies the standalone test configurations required for this device according to the findings in Section 13.2: Test Configurations Rear Left Right Top Bottom WIFI 2.4G Yes No No Yes No 802.11b WIFI 2.4G Yes No No Yes No 802.11n(HT40) Bluetooth No No No No No Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 26 of 29 Issued: 2018-09-25 14. SAR Measurement Results WIFI 2.4G Frequency Tune Measured Report Conducted Tune Plot Test up Power SAR(1g) SAR(1g) Mode Power up limit Position CH MHz scaling Drift(dB) No. (dBm) (dBm) (W/kg) (W/kg) factor 1 2412 11.39 12.50 1.29 0.13 0.955 1.23 1 Rear 6 2437 11.91 12.50 1.15 -0.10 0.957 1.10 - 11 2462 12.05 12.50 1.11 -0.18 0.755 0.837 - 802.11b Left 6 2437 11.91 12.50 1.15 - - - - 1Mbps Right 6 2437 11.91 12.50 1.15 - - - - Top 6 2437 11.91 12.50 1.15 -0.14 0.353 0.404 - Bottom 6 2437 11.91 12.50 1.15 - - - - Note: 1. According to the above table, the initial test position for body is “Rear”, and its reported SAR is≤ 0.4W/kg. Thus further SAR measurement is not required for the other (remaining) test positions. Because the reported SAR of the highest measured maximum output power channel for the exposureconfiguration is ≤ 0.8W/kg, no further SAR testing is required for 802.11b DSSS in that exposureconfiguration. 2. When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, the measurement and test reduction procedures for OFDM are applied. SAR is not required for the following 2.4 GHz OFDM conditions. a) When KDB Publication 447498 D01 SAR test exclusion applies to the OFDM configuration. b) 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. the 802.11g/n is not required. WIFI 2.4G- Scaled Reported SAR Frequency Reported Scaled maximum Mode Test Position Actual duty factor SAR reported SAR CH MHz duty factor (1g)(W/kg) (1g)(W/kg) 802.11b Rear 1 2412 100% 1 1.23 1.23 1Mbps Top 6 2437 100% 1 0.404 0.404 Note: 1. According to the KDB248227 D01, The reported SAR must be scaled to 100% transmission duty factor to determine compliance at the maximum tune-up tolerance limit. A maximum transmission duty factor of 100% is achievable for WLAN in this project. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 27 of 29 Issued: 2018-09-25 WIFI 2.4G Frequency Tune Measured Report Conducted Tune Plot Test up Power SAR(1g) SAR(1g) Mode Power up limit Position CH MHz scaling Drift(dB) No. (dBm) (dBm) (W/kg) (W/kg) factor 1 2412 14.35 15.00 1.16 0.04 1.01 1.17 - Rear 6 2437 14.77 15.00 1.05 -0.16 1.03 1.09 - 802.11n 11 2462 14.69 15.00 1.07 -0.03 0.959 1.03 - (HT40) Left 11 2462 14.77 15.00 1.05 - - - - MCS0 Right 11 2462 14.77 15.00 1.05 - - - - Top 11 2462 14.77 15.00 1.05 -0.08 0.362 0.382 - Bottom 11 2462 14.77 15.00 1.05 - - - - Note: 1. According to the above table, the initial test position for body is “Rear”, and its reported SAR is≤ 0.4W/kg. Thus further SAR measurement is not required for the other (remaining) test positions. Because the reported SAR of the highest measured maximum output power channel for the exposureconfiguration is ≤ 0.8W/kg, no further SAR testing is required for 802.11b DSSS in that exposureconfiguration. 2. When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, the measurement and test reduction procedures for OFDM are applied. SAR is not required for the following 2.4 GHz OFDM conditions. a) When KDB Publication 447498 D01 SAR test exclusion applies to the OFDM configuration. b) 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. the 802.11g/n is not required. WIFI 2.4G- Scaled Reported SAR Frequency Reported Scaled maximum Mode Test Position Actual duty factor SAR reported SAR CH MHz duty factor (1g)(W/kg) (1g)(W/kg) 802.11n Rear 6 2437 100% 1 1.09 1.09 (HT40) MCS0 Top 6 2437 100% 1 0.382 0.382 Note: 1. According to the KDB248227 D01, The reported SAR must be scaled to 100% transmission duty factor to determine compliance at the maximum tune-up tolerance limit. A maximum transmission duty factor of 100% is achievable for WLAN in this project. SAR Test Data Plots to the Appendix A. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 28 of 29 Issued: 2018-09-25 15. 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 Second Frequency Highest Repeated Repeated Test Measured Band Position SAR Largest to Largest to Measured Measured CH MHz (W/kg) Smallest Smallest SAR(W/kg) SAR(W/kg) SAR Ratio SAR Ratio WIFI 2.4G Rear 6 2437 1.03 1.01 1.02 N/A N/A Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: TRE18090044 Page: 29 of 29 Issued: 2018—09—25 16. TestSetup Photos _ Liquid depth in the Body phantom Rear (Omm) mae= .. Top (Omm) 17. External and Internal Photos of the EUT Please reference to the report No.: TRE1809004201 ---------End of Report—————————— Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: VO1 (2018—08)


Document Created: 2018-09-29 11:35:24
Document Modified: 2018-09-29 11:35:24
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC