SAR

FCC ID: 2ASMXH-101010

RF Exposure Info

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Report No: TRE18100158 Page: 1 of 26 Issued: 2018-11-05 TEST REPORT Report No. ...................................... : CHTEW19020048 Report verificaiton: Project No. ...................................... : SHT1901040601EW FCC ID ............................................. : 2ASMXH-101010 Applicant’s name ........................... : Huffy Corporation Address .............................................: 8877 Gander Creek Drive, Miamisburg, OH 45342 USA Manufacturer.....................................: Shenzhen ChangTaiWei Electronic CO.,LTD Address.............................................: G513,Wisdom Valley,YinTian Road,XiXiang,BaoAn, ShenZhen,China Test item description .................... : TWO WAY RADIO Trade Mark .......................................: - Model/Type reference .......................: T-388 Listed Model(s) .................................: - FCC 47 CFR Part2.1093 Standard ......................................... : IEEE Std C95.1, 1999 Edition IEEE 1528: 2013 Date of receipt of test sample………: Jan. 23, 2019 Date of testing………………………..: Jan. 24, 2019- Feb. 15, 2019 Date of issue………………………….: Feb. 18, 2019 Result .................. …………………...: PASS Compiled by ( position+printed name+signature) ..: File administrators:Xiaodong Zhao Supervised by ( position+printed name+signature) ..: Test Engineer: Xiaodong Zhao Approved by ( position+printed name+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. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 2 of 26 Issued: 2019-02-18 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 2.3. Test frequency list 5 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. Front-of-face 16 8.2. Body Position 16 9. Dielectric Property Measurements & System Check 17 9.1. Tissue Dielectric Parameters 17 9.2. SAR System Validation 18 9.3. SAR System Verification 19 10. SAR Exposure Limits 23 11. Radiated Power Measurement Results 24 12. Maximum Tune-up Limit 24 13. SAR Measurement Results 25 14. SAR Measurement Variability 26 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 3 of 26 Issued: 2019-02-18 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 C95.1, 1999 Edition: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz 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 1.2. Report version Revision No. Date of issue Description N/A 2019-02-18 Original Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 4 of 26 Issued: 2019-02-18 2. Summary 2.1. Client Information Applicant: Huffy Corporation Address: 8877 Gander Creek Drive, Miamisburg, OH 45342 USA Manufacturer: Shenzhen ChangTaiWei Electronic CO.,LTD Address: G513,Wisdom Valley,YinTian Road, XiXiang,BaoAn,ShenZhen,China 2.2. Product Description Name of EUT: TWO WAY RADIO Trade mark: ONN Model/Type reference: T-388 Listed model(s): - Accessories: Belt Clip Device Category: Portable RF Exposure Environment: General Population/Uncontrolled Power supply: DC 6.0V Device Dimension: Overall (Length x Width x Thickness):95 x 53 x 30mm Antenna(Length):45mm Maximum SAR Value Front-of-face: 25mm Separation Distance: Body: 0mm Front-of-face: 0.317 W/kg Maximun SAR Value (1g): Body: 1.321 W/kg RF Specification 462.5625MHz~ 462.7125MHz Operation Frequency Range: 467.5625MHz~ 467.7125MHz 462.5500MHz~ 462.7250MHz Rated Output Power: 0.5W(27.00dBm) Modulation Type: FM(Analog) Channel Separation: Analog:12.5kHz Antenna type: Internal Remark: 1. The EUT battery must be fully charged and checked periodically during the test to ascertain uniform power. 2. The maximum duty cycle of the product is 50%. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 5 of 26 Issued: 2019-02-18 2.3. Test frequency list When the frequency channels required for SAR testing are not specified in the published RF exposure KDB procedures, the following should be applied to determine the number of required test channels. The test channels should be evenly spread across the transmission frequency band of each wireless mode: Nc is the number of test channels, rounded to the nearest integer, Fhigh and flow are the highest and lowest channel frequencies within the transmission band, Fc is the mid-band channel frequency, all frequencies are in MHz. Channel Test Frequency(MHz) ModulationType Test Channel Separation Tx CH4 462.6375 Analog 12.5kHz CH11 467.6375 CH19 462.6500 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 6 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 7 of 26 Issued: 2019-02-18 4. Equipments Used during the Test Cal. date Due date Used Test Equipment Manufacturer Model No. Serial No. (YY-MM-DD) (YY-MM-DD) Data Acquisition Electronics ● DAEx SPEAG DAE4 1549 2018/04/25 2019/04/24 ● E-field Probe SPEAG EX3DV4 7494 2018/02/26 2019/02/25 Universal Radio ○ Communication Tester R&S CMW500 137681 2018/07/11 2019/07/10 ● Tissue-equivalent liquids Validation ● Dielectric Assessment Kit SPEAG DAK-3.5 1267 2018/03/01 2019/02/28 ○ Dielectric Assessment Kit SPEAG DAK-12 1130 2018/03/01 2019/02/28 ● Network analyzer Keysight E5071C MY46733048 2018/09/19 2019/09/18 ● System Validation ○ System Validation Antenna SPEAG CLA-150 4024 2018/02/21 2021/02/20 ● System Validation Dipole SPEAG D450V3 1102 2018/02/23 2021/02/22 ○ System Validation Dipole SPEAG D750V3 1180 2018/02/07 2021/02/06 ○ System Validation Dipole SPEAG D835V2 4d238 2018/02/19 2021/02/18 ○ System Validation Dipole SPEAG D1750V2 1164 2018/02/06 2021/02/05 ○ System Validation Dipole SPEAG D1900V2 5d226 2018/02/22 2021/02/21 ○ System Validation Dipole SPEAG D2450V2 1009 2018/02/05 2021/02/04 ○ System Validation Dipole SPEAG D2600V2 1150 2018/02/05 2021/02/04 ○ System Validation Dipole SPEAG D5GHzV2 1273 2018/02/21 2021/02/20 ● Signal Generator R&S SMB100A 114360 2018/08/21 2019/08/20 ● Power Viewer for Windows R&S N/A N/A N/A N/A ● Power sensor R&S NRP18A 101010 2018/08/21 2019/08/20 ● Power sensor R&S NRP18A 101011 2018/08/21 2019/08/20 ● Power Amplifier BONN BLWA 0160-2M 1811887 2018/11/15 2019/11/14 ● Dual Directional Coupler Mini-Circuits ZHDC-10-62-S+ F975001814 2018/11/15 2019/11/14 ● Attenuator Mini-Circuits VAT-3W2+ 1819 2018/11/15 2019/11/14 ● Attenuator Mini-Circuits VAT-10W2+ 1741 2018/11/15 2019/11/14 Note: 1. The Probe,Dipole and DAE 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: CHTEW19020048 Page: 8 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 9 of 26 Issued: 2019—02—18 6. SAR Measurements System Configuration 6.1. SAR Measurement Set—up The DASYS system for performing compliance tests consists of the following items: A standard high precision 6—axis robot (Stubli 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 DASYS measurement server, which performs all real—time data evaluation for field measurements and Ztégg.ce detection, controls robot movements and handles safety operation. A computer operating Windows 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. robot controtler Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: VO1 (2018—08)

Report No: CHTEW19020048 Page: 10 of 26 Issued: 2019—02—18 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 ConstructionSymmetrical design with triangular core Interleaved sensors Built—in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration|SO/IEC 17025 calibration service available. Frequency 10 MHz to 10 GHz; Linearity: + 0.2 dB (30 MHz to 10 GHz) Directivity +0.1 dB in TSL (rotation around probe axis) +0.3 dB in TSL (rotation normal to probe axis) Dynamic Range 10 uW/g to > 100 mW/g; Linearity: + 0.2 dB Dimensions Overall length: 337 mm (Tip: 20 mm) Tip diameter: 2.5 mm (Body: 12 mm) Distance from probe tip to dipole centers: 2.0 mm Application General dosimetry up to 10 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: DIPOLE SENSOR HIGH—RESISTANCE LINES Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: VO1 (2018—08)

Report No: CHTEW19020048 Page: 11 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 12 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 13 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 14 of 26 Issued: 2019—02—18 7.2. Data Storage and Evaluation Data Storage The DASYS5 software stores the acquired data from the data acquisition electronics as raw data (in microvolt readings from the probe sensors), together with all necessary software parameters for the data evaluation (probe calibration data, liquid parameters and device frequency and modulation data) in measurement files with the extension ".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], [mW/g), [mW/cm"], [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: Depi Device parameters: Frequency: f Crest factor: cf Media parameters: Conductivity: 0 Density: p 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 contfiguration 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: v,=t, 2 u2. dep; C Vi: compensated signal of channel (i=x, y, 2 ) Ui: input signal of channel (i=x, y, z2 ) cf: crest factor of exciting field (DASY parameter) depi: diode compression point (DASY parameter) From the compensated input signals the primary field data for each channel can be evaluated: e E — fieldprobes : E; = \ ConF Norm, _ . £2 H — fieldprobes : H;= JV,— % Vi: compensated signal of channel (i=x, y, 2 ) Normi: sensor sensitivity of channel (i=x, y, 2 ), [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 Am Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: VO1 (2018—08)

Report No: CHTEW19020048 Page: 15 of 26 Issued: 2019-02-18 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 mW/g 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: CHTEW19020048 Page: 16 of 26 Issued: 2019-02-18 8. Position of the wireless device in relation to the phantom 8.1. Front-of-face A typical example of a front-of-face device is a two-way radio that is held at a distance from the face of the user when transmitting. In these cases the device under test shall be positioned at the distance to the phantom surface that corresponds to the intended use as specified by the manufacturer in the user instructions. If the intended use is not specified, a separation distance of 25 mm between the phantom surface and the device shall be used. 8.2. Body Position A typical example of a body-worn device is a mobile phone, wireless enabled PDA or other battery operated wireless device with the ability to transmit while mounted on a person’s body using a carry accessory approved by the wireless device manufacturer. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 17 of 26 Issued: 2019-02-18 9. Dielectric Property Measurements & System Check 9.1. Tissue Dielectric Parameters It’s satisfying the latest tissue dielectric parameters requirements proposed by the KDB865664 D01. Targets for tissue simulating liquid Tissue dielectric parameters for head and body Target Frequency Head Body (MHz) εr σ(s/m) εr σ(s/m) 450 43.50 0.87 56.70 0.94 CheckResult: Dielectric performance of Head tissue simulating liquid εr σ(s/m) Frequency Delta Delta Temp Limit Date (MHz) (εr) (σ) (℃) Target Measured Target Measured 450 43.50 44.49 0.87 0.86 2.28% -1.26% ±5% 22 2019-02-15 Dielectric performance of Body tissue simulating liquid εr σ(s/m) Frequency Delta Delta Temp Limit Date (MHz) (εr) (σ) (℃) Target Measured Target Measured 450 56.70 56.11 0.94 0.96 -1.05% 2.23% ±5% 22 2019-02-15 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 18 of 26 Issued: 2019-02-18 9.2. SAR System Validation Per FCC KDB 865664 D02,SAR system validadion status should be documented to confirm measurement accuracy.The SAR systems (including SAR probes,system components and software versions) used for this device were validated against its performance specifications prior to the SAR measurements.Reference dipoles were used with the required tissue-equivalent media for system validation,according to the procedures outlined in FCC KDB 865664 D01 and IEEE 1528-2013.Since SAR probe calibrations are frequency dependent,each probe calibration point,using the system that normally operates with the probe for routine SAR measurements and according to the required tissue-equivalent media. A tabulated summary of the system validation status including the validation date(s),measurement frequencies, SAR probes and tissue dielectric parameters has been included. Dielectric Parameters CW Validation Modulation Validation Test Probe Calibration Date S/N Point Probe Probe Moduation Duty Conductivity Permittivity Sensitivity PAR linearity Isotropy type factor 2018-11-01 7494 Head 450 0.86 44.49 PASS PASS PASS FM PASS PASS 2018-11-01 7494 Body 450 0.96 56.11 PASS PASS PASS FM PASS PASS Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 19 of 26 Issued: 2019-02-18 9.3. SAR System Verification 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: CHTEW19020048 Page: 20 of 26 Issued: 2019-02-18 Check Result: Head 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 450 4.48 4.64 1.16 3.00 3.09 0.77 3.57% 3.07% ±10% 22 2019-02-15 Body 1g SAR 10g SAR Frequency Delta Delta Temp (MHz) Limit Date (1g) (10g) (℃) Target Normalize Measured Target Normalize Measured 1W to 1W 250mW 1W to 1W 250mW 450 4.47 4.88 1.22 3.01 3.30 0.83 9.17% 9.77% ±10% 22 2019-02-15 Note: 1. the graph results see follow. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 21 of 26 Issued: 2019-02-18 Plots of System Performance Check SystemPerformanceCheck-Head 450MHz DUT: Dipole 450 MHz; Type: D450V3; Serial: 1102 Date: 2019-02-15 Communication System: UID 0, A-CW (0); Frequency: 450 MHz 3 Medium parameters used: f = 450 MHz; σ = 0.859 S/m; εr = 44.492; ρ = 1000 kg/m Phantom section: Flat Section DASY Configuration:  Probe: EX3DV4 - SN7494; ConvF(11.7, 11.7, 11.7); 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) Head/d=15mm, Pin=250mW/Area Scan (81x81x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.60 W/kg Head/d=15mm, Pin=250mW/Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 44.31 V/m; Power Drift = -0.04 dB Peak SAR (extrapolated) = 1.85 W/kg SAR(1 g) = 1.16 W/kg; SAR(10 g) = 0.773 W/kg Maximum value of SAR (measured) = 1.58 W/kg 0 dB = 1.58 W/kg = 1.99 dBW/kg Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 22 of 26 Issued: 2019-02-18 SystemPerformanceCheck-Body 450MHz DUT: Dipole 450 MHz; Type: D450V3; Serial: 1102 Date: 2019-02-15 Communication System: UID 0, A-CW (0); Frequency: 450 MHz 3 Medium parameters used: f = 450 MHz; σ = 0.961 S/m; εr = 56.106; ρ = 1000 kg/m Phantom section: Flat Section DASY Configuration:  Probe: EX3DV4 - SN7494; ConvF(11.87, 11.87, 11.87); 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) Head/d=15mm, Pin=250mW/Area Scan (51x121x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.67 W/kg Head/d=15mm, Pin=250mW /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 42.66 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 2.03 W/kg SAR(1 g) = 1.22 W/kg; SAR(10 g) = 0.826 W/kg Maximum value of SAR (measured) = 1.72 W/kg 0 dB = 1.72 W/kg = 2.36 dBW/kg Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 23 of 26 Issued: 2019-02-18 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: CHTEW19020048 Page: 24 of 26 Issued: 2019-02-18 11. Radiated Power Measurement Results PMR Channel Frequency Radiated power Mode Separation Channel MHz (dBm) CH4 462.6375 25.50 Analog 12.5KHz CH11 467.6375 25.70 CH19 462.6500 25.60 12. Maximum Tune-up Limit This device operates using the following maximum output power specifications. SAR values were scaled to the maximum allowed power to determine compliance per KDB publication 447498 D01 PMR Operation Frequency Range Maximum tune-up power Mode Channel Separation (MHz) (dBm) 462.5625MHz~ 462.7125MHz 27.00 Analog 12.5 KHz 467.5625MHz~ 467.7125MHz 27.00 462.5500MHz~ 462.7250MHz 27.00 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 25 of 26 Issued: 2019-02-18 13. SAR Measurement Results Front-of-face Measured Report 50% Duty Frequency Tune- Tune-up Power Channel ERP SAR(1g) SAR(1g) factor SAR Test Mode up limit scaling Drift(dB Separation (dBm) Plot CH MHz (dBm) factor ) (W/kg) (W/kg) (W/kg) CH4 462.6375 25.50 27.00 1.41 0.07 0.277 0.391 0.196 - Analog 12.5KHz CH11 467.6375 25.70 27.00 1.35 0.05 0.470 0.634 0.317 1 CH19 462.6500 25.60 27.00 1.38 0.02 0.306 0.422 0.211 - Body-worn (Rear) 50% Duty Measured Report Frequency Tune- Tune-up factor Channel ERP Power SAR(1g) SAR(1g) Test Mode up limit scaling SAR Separation (dBm) Drift(dB) Plot (dBm) factor CH MHz (W/kg) (W/kg) (W/kg) CH4 462.6375 25.50 27.00 1.41 -0.11 1.870 2.641 1.321 2 Analog 12.5KHz CH11 467.6375 25.70 27.00 1.35 -0.07 1.430 1.929 0.965 - CH19 462.6500 25.60 27.00 1.38 -0.19 1.440 1.988 0.994 - Note: 1. The value with blue color is the maximum SAR Value of each test band. 2. Batteries are fully charged at the beginning of the SAR measurements. 3. The Body-worn SAR evaluation was performed with the Leather Case body-worn accessory attached to the DUT and touching the outer surface of the planar phantom. SAR Test Data Plots to the Appendix A. Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)

Report No: CHTEW19020048 Page: 26 of 26 Issued: 2019-02-18 14. 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 Analog Rear CH4 462.6375 1.87 1.82 1.03 N/A N/A 12.5K -------------End of Report------------- Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V01 (2018-08)


Document Created: 2019-04-15 04:39:26
Document Modified: 2019-04-15 04:39:26
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