SAR report

FCC ID: MQ4AU7212

RF Exposure Info

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FCCID_2095407

               FCC SAR Test Report                                            Report No. : FA370237




                      FCC SAR Test Report

            APPLICANT              : Abocom Systems, Inc
            EQUIPMENT              : 11ac 433Mbps Dualband Wireless USB Adapter
            BRAND NAME             : AboCom
            MODEL NAME             : AU7212
            FCC ID                 : MQ4AU7212
            STANDARD               : FCC 47 CFR Part 2 (2.1093)
                                     ANSI/IEEE C95.1-1992
                                     IEEE 1528-2003


      The product was completely tested on Sep. 08, 2013. We, SPORTON INTERNATIONAL INC.,
      would like to declare that the tested sample has been evaluated in accordance with the
      procedures and shown the compliance with the applicable technical standards.

      The test results in this report apply exclusively to the tested model / sample. Without
      written approval of SPORTON INTERNATIONAL INC., the test report shall not be
      reproduced except in full.




      Reviewed by: Eric Huang / Deputy Manager




          Approved by: Jones Tsai / Manager



                              SPORTON INTERNATIONAL INC.
No. 52, Hwa Ya 1st Rd., Hwa Ya Technology Park, Kwei-Shan Hsiang, Tao Yuan Hsien, Taiwan, R.O.C.




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 FCC ID : MQ4AU7212


                       FCC SAR Test Report                                                                                                   Report No. : FA370237


                                                                 Table of Contents
1. Statement of Compliance ............................................................................................................................................. 4
2. Administration Data ...................................................................................................................................................... 4
     2.1 Testing Laboratory.................................................................................................................................................. 4
     2.2 Applicant ................................................................................................................................................................ 4
     2.3 Manufacturer .......................................................................................................................................................... 4
     2.4 Application Details .................................................................................................................................................. 4
3. General Information ...................................................................................................................................................... 5
     3.1 Description of Equipment Under Test (EUT) .......................................................................................................... 5
     3.2 Maximum RF output power among production units .............................................................................................. 5
     3.3 Applied Standard .................................................................................................................................................... 6
     3.4 Device Category and SAR Limits ........................................................................................................................... 6
     3.5 Test Conditions....................................................................................................................................................... 6
4. Specific Absorption Rate (SAR) ................................................................................................................................... 7
     4.1 Introduction ............................................................................................................................................................ 7
     4.2 SAR Definition ........................................................................................................................................................ 7
5. SAR Measurement System ........................................................................................................................................... 8
     5.1 E-Field Probe ......................................................................................................................................................... 9
     5.2 Data Acquisition Electronics (DAE) ........................................................................................................................ 9
     5.3 Robot ....................................................................................................................................................................10
     5.4 Measurement Server.............................................................................................................................................10
     5.5 Phantom ................................................................................................................................................................ 11
     5.6 Device Holder........................................................................................................................................................12
     5.7 Data Storage and Evaluation ................................................................................................................................13
     5.8 Test Equipment List ...............................................................................................................................................15
6. Tissue Simulating Liquids ...........................................................................................................................................16
7. System Verification Procedures .................................................................................................................................18
     7.1 Purpose of System Performance check ................................................................................................................18
     7.2 System Setup ........................................................................................................................................................18
     7.3 SAR System Verification Results ..........................................................................................................................19
8. EUT Testing Position ...................................................................................................................................................20
9. Measurement Procedures ...........................................................................................................................................21
     9.1 Spatial Peak SAR Evaluation ................................................................................................................................21
     9.2 Power Reference Measurement............................................................................................................................22
     9.3 Area & Zoom Scan Procedures .............................................................................................................................22
     9.4 Volume Scan Procedures ......................................................................................................................................23
     9.5 SAR Averaged Methods ........................................................................................................................................23
     9.6 Power Drift Monitoring...........................................................................................................................................23
10. Conducted RF Output Power (Unit: dBm) ................................................................................................................24
11. Antenna Location .......................................................................................................................................................27
12. SAR Test Results .......................................................................................................................................................28
     12.1 Body SAR ...........................................................................................................................................................28
13. Simultaneous Transmission Analysis ......................................................................................................................29
14. Uncertainty Assessment ...........................................................................................................................................30
15. References ..................................................................................................................................................................33
Appendix A. Plots of System Performance Check
Appendix B. Plots of High SAR Measurement
Appendix C. DASY Calibration Certificate
Appendix D. Test Setup Photos




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TEL : 886-3-327-3456                                                                                                         Report Issued Date : Sep. 30, 2013
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FCC ID : MQ4AU7212


              FCC SAR Test Report                                           Report No. : FA370237


                                     Revision History
  REPORT NO.         VERSION                        DESCRIPTION                     ISSUED DATE

    FA370237         Rev. 01   Initial issue of report                              Sep. 30, 2013




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                 FCC SAR Test Report                                              Report No. : FA370237



1. Statement of Compliance
The maximum results of Specific Absorption Rate (SAR) found during testing for Abocom Systems, Inc 11ac
433Mbps Dualband Wireless USB Adapter AU7212 are as follows.


<Highest SAR Summary>
                                                Reported 1g-SAR                         Highest Reported
  Exposure Position        Frequency Band                          Equipment Class
                                                    (W/kg)                               1g-SAR (W/kg)
                          WLAN 5.2GHz Band             0.24              NII                  0.24
        Body
                          WLAN 2.4GHz Band             0.73
    (0.5cm Gap)                                                         DTS                   0.73
                          WLAN 5.8GHz Band             0.43


This device is in compliance with Specific Absorption Rate (SAR) for general population/uncontrolled
exposure limits (1.6 W/kg) specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEE C95.1-1992, and had
been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003.




2. Administration Data
2.1 Testing Laboratory
     Test Site                   SPORTON INTERNATIONAL INC.
                                                 st
                                 No. 52, Hwa Ya 1 Rd., Hwa Ya Technology Park,
                                 Kwei-Shan Hsiang, Tao Yuan Hsien, Taiwan, R.O.C.
     Test Site Location
                                 TEL: +886-3-327-3456
                                 FAX: +886-3-328-4978


2.2 Applicant
    Company Name                 Abocom Systems, Inc
    Address                      No.77, Yu-Yih Rd., Chu-Nan, Miao-Lih County 35059, Taiwan R.O.C.


2.3 Manufacturer
    Company Name                 Abocom Systems, Inc
    Address                      No.77, Yu-Yih Rd., Chu-Nan, Miao-Lih County 35059, Taiwan R.O.C.


2.4 Application Details
    Date of Start during the Test      Sep. 07, 2013
    Date of End during the Test        Sep. 08, 2013


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 seorroncas.     FCC SAR Test Report                                                            Report No. : FA370237



3. General Information

3.1 Description of Equipment Under Test (EUT)
                                            Product Feature & Specification
EUT                           1ac 433Mbps Dualband Wireless USB Adapter
Brand Name                    AboCom
Model Name                    AU7ZL2
FCC ID                  MQAAUTZ12
Wireless Technology and WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz
Frequency Range         WLAN 5.2GHz Band: 5180 MHz ~ 5240 MHz
                              WLAN 5.8GHz Band: 5745 MHz ~ 5825 MHz
Mode                          « 802. 11a/big/n/ac HT20/HTAOMVHT20NHT4ONHT8O
Antenna Type                  —PAX Antenna
EUT Stage                     Identical Prototype
Remark:
1.    The above EUT‘s information was declared by manufacturer. Please refer to the specifications or user‘s manual for
      more detailed description.



3.2 Maximum RF output power among production units
                                                                IEEE 802.11 Average Power (dBm)
       Mode / Frequency (MHz)                    1ib                i1g                T20                       io

                            2412                  21                 16                    15
                            2422                                                                                   13
WLAN 2.4GHz Band            2437                  22                 22                    22                      16
                            2452                                                                                   13
                            2462                  21                 16                    15

                                                                IEEE 802.11 Average Power (dBm)
       Mode / Frequency (MHz)               ta          HT2o          HT40         vHtz2o         vTH4o             viHso
                            5180            17            15                         15
                            5190                                          15                         15
                            5200            17            17                         17
WLAN 5.2GHz Band            5210                                                                                        12.5
                            5220            17            17                         17
                            5230                                          17                         17
                            5240            17            17                         17
                            5745           21.5           20                         20
                            5755                                          18.5                       18.5
                            5765           21.5          21.5                       21.5
                            5775                                                                                        16
WLAN 5.8GHz Band            s7as            23            57                         57

                            5795                                          22                         22
                            5805           21.5          21.5                       21.5
                            5825            23           21.5                       21.5




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3.3 Applied Standard
    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—2003
            FCC KDB 447498 DO1 vO5r01
            FCC KDB 447498 D02 v02
            FCC KDB 644545 DO1 vO1r01
            FCC KDB 248227 D01 v01r02


3.4 Device Category and SAR Limits
     This device belongs to portable device category because its radiating structure is allowed to be used within 20
     centimeters of the body of the user. Limit for General Population/Uncontrolled exposure should be applied for this
     device, it is 1.6 Wikg as averaged over any 1 gram of tissue.


3.5 Test Conditions
3.5.1 Ambient Condition
           Ambient Temperature                                                         20 to 24 °C
           Humidity                                                                      <60 %


3.5.2 Test Configuration

         For WLAN SAR testing, WLAN engineering testing software installed on the EUT can provide continuous
         transmitting RF signal.




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                FCC SAR Test Report                                                                Report No. : FA370237



4. Specific Absorption Rate (SAR)
4.1 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.


4.2 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)
    SAR measurement can be either related to the temperature elevation in tissue by
                                                                𝛅𝐓
                                                       𝐒𝐀𝐑 = 𝐂 ( )
                                                                𝛅𝐭
    Where: C is the specific heat capacity, δT is the temperature rise and δt is the exposure duration, or related to the
    electrical field in the tissue by

                                                              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.


    However for evaluating SAR of low power transmitter, electrical field measurement is typically applied.




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               FCC SAR Test Report                                                             Report No. : FA370237


5. SAR Measurement System




                                 Fig 5.1 SPEAG DASY System Configurations
    The DASY system for performance compliance tests is illustrated above graphically. This system consists of the
    following items:
         A standard high precision 6-axis robot with controller, a teach pendant and software
         A data acquisition electronic (DAE) attached to the robot arm extension
         A dosimetric probe equipped with an optical surface detector system
         The electro-optical converter (EOC) performs the conversion between optical and electrical signals
         A measurement server performs the time critical tasks such as signal filtering, control of the robot operation
          and fast movement interrupts.
         A probe alignment unit which improves the accuracy of the probe positioning
         A computer operating Windows XP
         DASY software
         Remove control with teach pendant and additional circuitry for robot safety such as warming lamps, etc.
         The SAM twin phantom
         A device holder
         Tissue simulating liquid
         Dipole for evaluating the proper functioning of the system
    Component details are described in in the following sub-sections.




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                 FCC SAR Test Report                                                                Report No. : FA370237

5.1 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.


5.1.1     E-Field Probe Specification

          <EX3DV4 / ES3DV4 Probe>
           Construction           Symmetrical design with triangular core
                                  Built-in shielding against static charges
                                  PEEK enclosure material (resistant to organic
                                  solvents, e.g., DGBE)
           Frequency              10 MHz to 6 GHz; Linearity: ± 0.2 dB
           Directivity            ± 0.3 dB in HSL (rotation around probe axis)
                                  ± 0.5 dB in tissue material (rotation normal to
                                  probe axis)
           Dynamic Range          10 µW/g to 100 mW/g; Linearity: ± 0.2 dB
                                  (noise: typically < 1 µW/g)
           Dimensions             Overall length: 330 mm (Tip: 20 mm)
                                  Tip diameter: 2.5 mm (Body: 12 mm)
                                  Typical distance from probe tip to dipole
                                  centers: 1 mm
                                                                                              Fig 5.2   Photo of
                                                                                                EX3DV4/ES3DV4


5.1.2     E-Field Probe Calibration
          Each probe needs to be calibrated according to a dosimetric assessment procedure with accuracy better than ±
          10%. The spherical isotropy shall be evaluated and within ± 0.25dB. The sensitivity parameters (NormX, NormY,
          and NormZ), the diode compression parameter (DCP) and the conversion factor (ConvF) of the probe are tested.
          The calibration data can be referred to appendix C of this report.


5.2 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 5.3       Photo of DAE




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5.3 Robot
    The SPEAG DASY system uses the high precision robots (DASY4: RX90BL; DASY5: TX90XL) type from Stäubli SA
    (France). For the 6-axis controller system, the robot controller version (DASY4: CS7MB; DASY5: CS8c) from Stäubli
    is used. The Stäubli robot series have many features that are important for our application:
       High precision (repeatability ±0.035 mm)
       High reliability (industrial design)
       Jerk-free straight movements
       Low ELF interference (the closed metallic construction shields against motor control fields)




                 Fig 5.4      Photo of DASY4                                Fig 5.5      Photo of DASY5


5.4 Measurement Server
    The measurement server is based on a PC/104 CPU board with CPU (DASY4: 166 MHz, Intel Pentium; DASY5: 400
    MHz, Intel Celeron), chipdisk (DASY4: 32 MB; DASY5: 128 MB), RAM (DASY4: 64 MB, DASY5: 128 MB). The
    necessary circuits for communication with the DAE electronic box, as well as the 16 bit AD converter system for
    optical detection and digital I/O interface are contained on the DASY I/O board, which is directly connected to the
    PC/104 bus of the CPU board.
    The measurement server performs all the real-time data evaluation for field measurements and surface detection,
    controls robot movements and handles safety operations.




           Fig 5.6     Photo of Server for DASY4                      Fig 5.7     Photo of Server for DASY5




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5.5 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




                                                                                Fig 5.8     Photo of SAM 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.


    <ELI4 Phantom>
     Shell Thickness          2 ± 0.2 mm (sagging: <1%)
     Filling Volume           Approx. 30 liters
     Dimensions               Major ellipse axis: 600 mm
                              Minor axis: 400 mm




                                                                                Fig 5.9      Photo of ELI4 Phantom

    The ELI4 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.




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5.6 Device Holder
    <Device Holder for SAM Twin Phantom>
    The SAR in the phantom is approximately inversely proportional to the square of the distance between the source
    and the liquid surface. For a source at 5 mm distance, a positioning uncertainty of ± 0.5 mm would produce a SAR
    uncertainty of ± 20 %. Accurate device positioning is therefore crucial for accurate and repeatable measurements.
    The positions in which the devices must be measured are defined by the standards.
    The DASY device holder is designed to cope with different positions given in the standard. It has two scales for the
    device rotation (with respect to the body axis) and the device inclination (with respect to the line between the ear
    reference points). The rotation center for both scales is the ear reference point (ERP). Thus the device needs no
    repositioning when changing the angles.
    The DASY device holder is constructed of low-loss POM material having the following dielectric parameters: relative
    permittivity ε = 3 and loss tangent δ = 0.02. The amount of dielectric material has been reduced in the closest vicinity
    of the device, since measurements have suggested that the influence of the clamp on the test results could thus be
    lowered.




                                              Fig 5.10     Device Holder

    <Laptop Extension Kit>
    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.




                                          Fig 5.11         Laptop Extension Kit




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5.7 Data Storage and Evaluation
5.7.1 Data Storage
       The DASY software stores the assessed data from the data acquisition electronics as raw data (in microvolt
       readings from the probe sensors), together with all the necessary software parameters for the data evaluation
       (probe calibration data, liquid parameters and device frequency and modulation data) in measurementfiles. The
       post—processing 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 erroneous parameter settings. For example, if a measurement has been performed with an incorrect crest factor
       parameter in the device setup, the parameter can be corrected afterwards and the data can be reevaluated.

       The measured data can be visualized or exported in different units or formats, depending on the selected probe
       type (e.g., [V/im], [A/m], [mW/g]). Some of these units are not available in certain situations or give meaningless
       results, e.g., a SAR—output in a non—lose media, will always be zero. Raw data can also be exported to perform the
       evaluation with other software packages.


5.7.2 Data Evaluation
       The DASY post—processing software (SEMCAD) 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                          Norm; &o, an, &
                                     — Conversion factor                    ConvF,
                                     — Diode compression point              dep:
         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 configuration files issued for the DASY components. in the direct
       measuring mode of the multi—meter option, the parameters of the actual system setup are used. In the scan
       visualization and export modes, the parameters stored in the corresponding documentfiles 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.




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       The formula for each channel can be given as :




       with       V, = compensated signal of channel i, (i=x, y, z)
                  U; = input signal of channel i, (i=x, y, z)
                  cf = crest factor of exciting field (DASY parameter)
                  dep; = diode compression point (DASY parameter)

       From the compensated input signals, the primary field data for each channel can be evaluated :

                                                      E—field Probes : E; =
                                                                               Noi           vF


                                                H—field Probes : H, = \/V, 8¢asftaet
                                                                                     1   s    oft




       with       V; = compensated signal of channel i, (i= x, y, z)
                  Norm; = sensor sensitivity of channel i, (i = x, y, 2), pV/(V/m)2 for E—field Probes
                  ConvF = sensitivity enhancementin solution
                  aj = sensor sensitivity factors for H—field probes
                  t = carrier frequency [GHz]
                  E; = electric field strength of channel i in V/m
                  Hi= magnetic field strength of channel i in A/m


       The RSS value of the field components gives the total field strength (Hermitian magnitude) :

                                                            Eioe =   [EX + E$ + E2

       The primary field data are used to calculate the derived field units.
                                                                              ty
                                                            §AR —opl
                                                                = Fhe . s—1509

       with       SAR = local specific absorption rate in mW/g
                  Eia = total field strength in V/m
                  0 = conductivity in [mho/m] or [Siemens/m]
                  p = equivalent tissue density in g/cm3

       Note that the density is set to 1, to account for actual head tissue density rather than the density of the tissue
       simulating liquid.




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                FCC SAR Test Report                                                               Report No. : FA370237

5.8 Test Equipment List
                                                                                                         Calibration
Manufacturer                Name of Equipment                   Type/Model   Serial Number
                                                                                                 Last Cal.            Due Date
   SPEAG               2450MHz System Validation Kit             D2450V2         840           Mar. 26, 2013     Mar. 25, 2014
   SPEAG               5000MHz System Validation Kit             D5000V2         1006          Dec. 11, 2012     Dec. 10, 2015
   SPEAG                 Data Acquisition Electronics             DAE4           1303          Nov. 22, 2012     Nov. 21, 2013
   SPEAG                  Dosimetric E-Field Probe               EX3DV4          3819          Nov. 26, 2012     Nov. 25, 2013
   Wisewind                     Thermometer                      ETP-101        TM560          Nov. 13, 2012     Nov. 12, 2013
   SPEAG                       Device Holder                       N/A           N/A               NCR                  NCR
    Agilent          ESG Vector Series Signal Generator           E4438C     MY49070755        Oct. 02, 2012     Oct. 01, 2013
    Agilent                ENA Network Analyzer                   E5071C     MY46316648        Feb. 07, 2013     Feb. 06, 2014
   SPEAG                     Dielectric Probe Kit                DAK-3.5         1126          Jul. 23, 2013      Jul. 22, 2014
    Anritsu                     Power Meter                      ML2495A       1132003         Aug. 28, 2013     Aug. 27, 2014
    Anritsu                    Power Sensor                      MA2411B       1126017         Aug. 27, 2013     Aug. 26, 2014
    Agilent               Dual Directional Coupler                 778D         50422                        Note 2
    Woken                       Attenuator 1                    WK0602-XX        N/A                         Note 2
      PE                        Attenuator 2                    PE7005-10        N/A                         Note 2
      PE                        Attenuator 3                     PE7005- 3       N/A                         Note 2
      AR                       Power Amplifier                   5S1G4M2       0328767                       Note 3
     R&S                     Spectrum Analyzer                    FSP 7         101131         Jul. 09, 2013      Jul. 08, 2014

                                                    Table 5.1 Test Equipment List
Note:
 1.   The calibration certificate of DASY can be referred to appendix C of this report.
 2.   The Insertion Loss calibration of Dual Directional Coupler and Attenuator were characterized via the network
      analyzer and compensated during system check.
 3.   In system check we need to monitor the level on the power meter, and adjust the power amplifier level to have
      precise power level to the dipole; the measured SAR will be normalized to 1W input power according to the ratio of
      1W to the input power to the dipole. For system check, the calibration of the power amplifier is deemed not critically
      required for correct measurement; the power meter is critical and we do have calibration for it
 4.   Attenuator 1 insertion loss is calibrated by the network Analyzer, which the calibration is valid, before system
      check.




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6. 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. 6.1. 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. 6.2.




      Fig 6.1 Photo of Liquid Height for Head SAR                      Fig 6.2 Photo of Liquid Height for Body SAR

    The following table gives the recipes for tissue simulating liquid.
         Frequency         Water      Sugar      Cellulose      Salt      Preventol   DGBE     Conductivity   Permittivity
           (MHz)              (%)       (%)         (%)         (%)          (%)      (%)           (σ)           (εr)
                                                             For Head
            750             41.1       57.0         0.2         1.4          0.2       0           0.89           41.9
            835             40.3       57.9         0.2         1.4          0.2       0           0.90           41.5
            900             40.3       57.9         0.2         1.4          0.2       0           0.97           41.5
      1800, 1900, 2000      55.2         0           0          0.3          0        44.5         1.40           40.0
            2450            55.0         0           0           0           0        45.0         1.80           39.2
                                                             For Body
            750             51.7       47.2          0          0.9          0.1       0           0.96           55.5
            835             50.8       48.2          0          0.9          0.1       0           0.97           55.2
            900             50.8       48.2          0          0.9          0.1       0           1.05           55.0
      1800, 1900, 2000      70.2         0           0          0.4          0        29.4         1.52           53.3
            2450            68.6         0           0           0           0        31.4         1.95           52.7
                                    Table 6.1 Recipes of Tissue Simulating Liquid



    Simulating Liquid for 5G, Manufactured by SPEAG
                   Ingredients                            (% by weight)
                      Water                                  64~78%
                    Mineral oil                              11~18%
                    Emulsifiers                              9~15%
               Additives and Salt                             2~3%




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The dielectric parameters of the liquids were verified prior to the SAR evaluation using an SPEAG DAK—3.5 Dielectric
Probe Kit and an Agilent Network Analyzer.
The following table shows the measuring results for simulating liquid.
Frequency|Liquid] Liquid Temp.|Conductivity |Permittivity Conductivity Permittivity Delta (0) Delta (€,) Limit (%)        Date
  (MHz)     Type       (C)          (0)          (€)       Target(0)    Target(&)     (%)        (%)             °
   2450     Body       22.8          1.939       53.980         1.95         52.7      —0.56     2.43       +5       Sep. 07, 2013
   5200     Body       22.5          5.278       48.936         5.30         49.0      —0.42     —0.13      +5       Sep. 08, 2013
   5800     Body       22.7          5.868       46.994         6.00         48.2      —2.20     —2.50      +5       Sep. 08, 2013

                                Table 6.2 Measuring Results for Simulating Liquid




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7. System Verification Procedures
    Each DASY system is equipped with one or more system validation kits. These units, together with the predefined
    measurement procedures within the DASY software, enable the user to conduct the system performance check and
    system validation. System validation kit includes a dipole, tripod holder to fix it underneath the flat phantom and a
    corresponding distance holder.



7.1 Purpose of System Performance check
    The system performance check verifies that the system operates within its specifications. System and operator errors
    can be detected and corrected. It is recommended that the system performance check be performed prior to any
    usage of the system in order to guarantee reproducible results. The system performance check uses normal SAR
    measurements in a simplified setup with a well characterized source. This setup was selected to give a high
    sensitivity to all parameters that might fail or vary over time. The system check does not intend to replace the
    calibration of the components, but indicates situations where the system uncertainty is exceeded due to drift or
    failure.



7.2 System Setup
    In the simplified setup for system evaluation, the EUT is replaced by a calibrated dipole and the power source is
    replaced by a continuous wave that comes from a signal generator. The calibrated dipole must be placed beneath the
    flat phantom section of the SAM twin phantom with the correct distance holder. The distance holder should touch the
    phantom surface with a light pressure at the reference marking and be oriented parallel to the long side of the
    phantom. The equipment setup is shown below:
                     Spacer
                                                                           3D Probe positioner
                                                s
                                                                   Field probe
                                                                                     Flat Phantom




                                                                                     Dipole




                                                Dir.Coupler
          Signal        Amp             3dB                                      x
          Generator                                              Cable                    Att1
                                        Att3
                                                                                               PM1
                                                    Att2   PM3



                                               PM2




                                 Fig 7.1 System Setup for System Evaluation




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       1.    Signal Generator
       2.    Amplifier
       3.    Directional Coupler
       4.    Power Meter
       5.    Calibrated Dipole




                                                 Fig 7.2 Photo of Dipole Setup


7.3 SAR System Verification Results
Comparing to the original SAR value provided by SPEAG, the verification data should be within its specification of 10 %.
Table 7.1 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.
Plot                        Frequency               Input Power   Targeted SAR Measured SAR Normalized SAR Deviation
                Date                  Liquid Type
No.                           (MHz)                    (mW)          (W/kg)       (W/kg)        (W/kg)       (%)
 1          Sep. 07, 2013     2450        Body          250           50.4         12.1            48.4          -3.97
 2          Sep. 08, 2013     5200        Body          100           71.4         7.52            75.2          5.32
 3          Sep. 08, 2013     5800        Body          100           71.7         7.04            70.4          -1.81

                                   Table 7.1 Target and Measurement SAR after Normalized




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8. EUT Testing Position

This EUT was tested in four different USB configurations. They are “direct laptop plug-in for configuration 1 and 3”, “USB
cable plug-in for configuration 2 and 4”, and “USB cable plug-in for Tip Mode (the tip of the EUT)” shown as below. Both
direct laptop plug-in and USB cable plug-in test configurations are tested with 5 cm separation between the particular
dongle orientation and the flat phantom. Please refer to Appendix D for the test setup photos.




         Configuration 1               Configuration 2              Configuration 3                Configuration 4
         (Horizontal Up)             (Horizontal Down)              (Vertical Front)               (Vertical Back)
                              Fig 8.1 Illustration for USB Connector Orientations




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9. 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 E 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


9.1 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




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9.2 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.


9.3 Area & Zoom Scan Procedures
    First Area Scan is used to locate the approximate location(s) of the local peak SAR value(s). The measurement grid
    within an Area Scan is defined by the grid extent, grid step size and grid offset. Next, in order to determine the EM
    field distribution in a three-dimensional spatial extension, Zoom Scan is required. The Zoom Scan is performed
    around the highest E-field value to determine the averaged SAR-distribution over 10 g. Area scan and zoom scan
    resolution setting follows KDB 865664 D01v01 quoted below.


    For any secondary peaks found in the area scan which are within 2 dB of the maximum peak and are not within this
    zoom scan, the zoom scan should be repeated




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9.4 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.


9.5 SAR Averaged Methods
    In DASY, the interpolation and extrapolation are both based on the modified Quadratic Shepard’s method. The
    interpolation scheme combines a least-square fitted function method and a weighted average method which are the
    two basic types of computational interpolation and approximation.
    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. The uncertainty increases with the extrapolation distance. To keep the uncertainty within 1% for the 1 g and
    10 g cubes, the extrapolation distance should not be larger than 5 mm.


9.6 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.




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10. Conducted RF Output Power (Unit: dBm)
<WLAN 2.4GHz Conducted Power>
                     WLAN 2.4GHz 802.11b Average Power (dBm)
                               Power vs. Channel                                               Tune up Limite
                                   Frequency                 Data Rate                            (dBm)
          Channel
                                     (MHz)                    1Mbps
           CH 1                       2412                     20.88                                 21.0
           CH 6                       2437                     21.87                                 22.0
           CH 11                      2462                     20.67                                 21.0

                     WLAN 2.4GHz 802.11g Average Power (dBm)
                               Power vs. Channel                                               Tune up Limite
                                   Frequency                 Data Rate                            (dBm)
          Channel
                                     (MHz)                    6Mbps
           CH 1                       2412                     15.87                                 16.0
           CH 6                       2437                     21.56                                 22.0
           CH 11                      2462                     15.48                                 16.0

                 WLAN 2.4GHz 802.11n-HT20 Average Power (dBm)
                              Power vs. Channel                                                Tune up Limite
                                  Frequency                 MCS Index                             (dBm)
          Channel
                                    (MHz)                     MCS0
           CH 1                      2412                     14.11                                  15.0
           CH 6                      2437                     21.44                                  22.0
           CH 11                     2462                     14.38                                  15.0

                 WLAN 2.4GHz 802.11n-HT40 Average Power (dBm)
                              Power vs. Channel                                                Tune up Limite
                                  Frequency                 MCS Index                             (dBm)
          Channel
                                    (MHz)                     MCS0
           CH 3                      2422                     11.20                                  13.0
           CH 6                      2437                     15.03                                  16.0
           CH 9                      2452                     12.00                                  13.0
Note:
1.    Per KDB 248227 D01 v01r02, choose the highest output power channel to test SAR and determine further SAR
      exclusion
2.    For each frequency band, testing at higher data rates and higher order modulations is not required when the
      maximum average output power for each of these configurations is less than 1/4dB higher than those measured at
      the lowest data rate
3.    Apply the test exclusion rule in KDB 248227 D01 v01r02 11g, 11n-HT20/HT40 output power is less than 1/4dB
      higher than 11b mode, thus the SAR can be excluded.




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<WLAN 5GHz Conducted Power>
                     WLAN 5GHz 802.11a Average Power (dBm)
                              Power vs. Channel                                         Tune up Limit
                                  Frequency                  Data Rate                     (dBm)
         Channel
                                    (MHz)                     6Mbps
         CH 36                       5180                      16.86                         17.0
         CH 40                       5200                      16.93                         17.0
         CH 44                       5220                      16.85                         17.0
         CH 48                       5240                      16.97                         17.0
         CH 149                      5745                      21.16                         21.5
         CH 153                      5765                      20.88                         21.5
         CH 157                      5785                      22.61                         23.0
         CH 161                      5805                      20.69                         21.5
         CH 165                      5825                      22.34                         23.0

                   WLAN 5GHz 802.11n-HT20 Average Power (dBm)
                               Power vs. Channel                                        Tune up Limit
                                   Frequency                MCS Index                      (dBm)
         Channel
                                     (MHz)                    MCS0
         CH 36                        5180                    14.73                          15.0
         CH 40                        5200                    16.84                          17.0
         CH 44                        5220                    16.42                          17.0
         CH 48                        5240                    16.81                          17.0
         CH 149                       5745                    19.51                          20.0
         CH 153                       5765                    20.86                          21.5
         CH 157                       5785                    21.54                          22.0
         CH 161                       5805                    20.88                          21.5
         CH 165                       5825                    21.22                          21.5

                 WLAN 5GHz 802.11n-HT40 Average Power (dBm)
                             Power vs. Channel                                          Tune up Limit
                                 Frequency                MCS Index                        (dBm)
         Channel
                                   (MHz)                    MCS0
          CH 38                     5190                    14.53                            15.0
          CH 46                     5230                    16.88                            17.0
         CH 151                     5755                    18.30                            18.5
         CH 159                     5795                    21.40                            22.0

                WLAN 5GHz 802.11ac-VHT20 Average Power (dBm)
                             Power vs. Channel                                          Tune up Limit
                                 Frequency                MCS Index                        (dBm)
         Channel
                                   (MHz)                     MCS0
          CH 36                     5180                     14.91                           15.0
          CH 40                     5200                     16.94                           17.0
          CH 44                     5220                     16.53                           17.0
          CH 48                     5240                     16.92                           17.0
         CH 149                     5745                     19.62                           20.0
         CH 153                     5765                     21.06                           21.5
         CH 157                     5785                     21.64                           22.0
         CH 161                     5805                     21.01                           21.5
         CH 165                     5825                     21.37                           21.5




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                 WLAN 5GHz 802.11ac-VHT40 Average Power (dBm)
                              Power vs. Channel                                                Tune up Limit
                                  Frequency                MCS Index                              (dBm)
          Channel
                                    (MHz)                     MCS0
           CH 38                     5190                     14.62                                 15.0
           CH 46                     5230                     16.94                                 17.0
          CH 151                     5755                     18.44                                 18.5
          CH 159                     5795                     21.53                                 22.0

                 WLAN 5GHz 802.11ac-VHT80 Average Power (dBm)
                              Power vs. Channel                                                Tune up Limit
                                  Frequency                MCS Index                              (dBm)
          Channel
                                    (MHz)                     MCS0
           CH 42                     5210                     12.16                                 12.5
          CH 155                     5775                     15.51                                 16.0
Note:
1.    Per KDB 248227 D01 v01r02, choose the highest output power channel to test SAR and determine further SAR
      exclusion
2.    For each frequency band, testing at higher data rates and higher order modulations is not required when the
      maximum average output power for each of these configurations is less than 1/4dB higher than those measured at
      the lowest data rate.
3.    Apply the test exclusion rule in KDB 248227 D01 v01r02, 11n-HT20/HT40 and 11ac-VHT20/VHT40 output power is
      less than 1/4dB higher than 802.11a mode, thus the SAR can be excluded.
4.    For 802.11ac SAR evaluation for each frequency band, 802.11n VHT80 was verified at the worst case found in
      802.11a SAR testing.




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11. Antenna Location




                                    WLAN Antenna




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 12. SAR Test Results
 Note:
 1.     Per KDB 447498 D01v05r01, the reported SAR is the measured SAR value adjusted for maximum tune-up tolerance.
            Scaling Factor = tune-up limit power (mW) / EUT RF power (mW), where tune-up limit is the maximum rated
            power among all production units.
            Reported SAR(W/kg)= Measured SAR(W/kg)* Tune-up Scaling Factor
 2.     Per KDB 447498 D01v05r01, 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 W/kg or 2.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≤ 100 MHz
           ≤ 0.6 W/kg or 1.5 W/kg, for 1-g or 10-g respectively, when the transmission band is between 100 MHz and 200
             MHz
           ≤ 0.4 W/kg or 1.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≥ 200 MHz



 12.1 Body SAR

 <WLAN SAR-DTS>
                                                                            Average Tune-Up Tune-up   Power Measured Reported
Plot                                          Test           Gap      Freq.
         Band            Mode                                     Ch.        Power    Limit Scaling    Drift 1g SAR 1g SAR
No.                                          Position        (cm)     (MHz)
                                                                             (dBm)   (dBm)   Factor    (dB)  (W/kg)   (W/kg)
       WLAN2.4GHz    802.11b 1Mbps        Horizontal Up       0.5 6 2437 21.87         22    1.030     -0.01  0.561    0.578
 1     WLAN2.4GHz    802.11b 1Mbps       Horizontal Down      0.5   6   2437   21.87   22     1.030   -0.09   0.455    0.469
       WLAN2.4GHz    802.11b 1Mbps         Vertical Front     0.5   6   2437   21.87   22     1.030   -0.05   0.709    0.731
       WLAN2.4GHz    802.11b 1Mbps         Vertical Back      0.5   6   2437   21.87   22     1.030   0.02    0.596    0.614
       WLAN2.4GHz    802.11b 1Mbps    Tip Mode_configuration1 0.5   6   2437   21.87   22     1.030   -0.02   0.017    0.018
       WLAN2.4GHz    802.11b 1Mbps    Tip Mode_configuration2 0.5   6   2437   21.87   22     1.030   0.11    0.001    0.001
 3     WLAN5GHz      802.11a 6Mbps        Horizontal Up       0.5 157 5785     22.61   23     1.094   -0.11   0.389    0.426
       WLAN5GHz      802.11a 6Mbps       Horizontal Down      0.5 157 5785     22.61   23     1.094   -0.03   0.317    0.347
       WLAN5GHz      802.11a 6Mbps         Vertical Front     0.5 157 5785     22.61   23     1.094   -0.11   0.334    0.365
       WLAN5GHz      802.11a 6Mbps         Vertical Back      0.5 157 5785     22.61   23     1.094   -0.05   0.335    0.366
       WLAN5GHz      802.11a 6Mbps    Tip Mode_configuration1 0.5 157 5785     22.61   23     1.094   0.05    0.066    0.072
       WLAN5GHz      802.11a 6Mbps    Tip Mode_configuration2 0.5 157 5785     22.61   23     1.094   -0.08   0.016    0.018
       WLAN5GHz 802.11n-VTH80 MCS0        Horizontal Up       0.5 155 5775     15.51   16     1.119   -0.09   0.357    0.400



 <WLAN SAR-NII>
                                                                            Average Tune-Up Tune-up   Power Measured Reported
Plot                                          Test           Gap      Freq.
         Band            Mode                                     Ch.        Power    Limit Scaling    Drift 1g SAR 1g SAR
No.                                          Position        (cm)     (MHz)
                                                                             (dBm)   (dBm)   Factor    (dB)  (W/kg)   (W/kg)
       WLAN5GHz      802.11a 6Mbps        Horizontal Up       0.5 48 5240 16.97        17    1.007     -0.02  0.214    0.215
       WLAN5GHz      802.11a 6Mbps       Horizontal Down      0.5 48 5240      16.97   17     1.007   -0.02   0.081    0.082
       WLAN5GHz      802.11a 6Mbps         Vertical Front     0.5 48 5240      16.97   17     1.007   -0.02   0.219    0.221
 2     WLAN5GHz      802.11a 6Mbps         Vertical Back      0.5 48 5240      16.97   17     1.007   -0.01   0.235    0.237
       WLAN5GHz      802.11a 6Mbps    Tip Mode_configuration1 0.5 48 5240      16.97   17     1.007    0.1    0.056    0.056
       WLAN5GHz      802.11a 6Mbps    Tip Mode_configuration2 0.5 48 5240      16.97   17     1.007   0.07    0.014    0.014
       WLAN5GHz 802.11n-VTH80 MCS0         Vertical Back      0.5 42 5210      12.16   12.5   1.081   -0.04   0.213    0.230




 SPORTON INTERNATIONAL INC.                                                            Page Number        : 28 of 33
 TEL : 886-3-327-3456                                                                  Report Issued Date : Sep. 30, 2013
 FAX : 886-3-328-4978                                                                  Report Version     : Rev. 01
 FCC ID : MQ4AU7212


 seorroncas.     FCC SAR Test Report                                                       Report No. : FA370237



13. Simultaneous Transmission Analysis

NO.       Simultaneous Transmission Configurations     Supported

1.    |WLANZ.4GHz + WLANSGHz                              No
Note:
1.    EUT will choose either WLAN 2.4GHz or WLAN 5GHz according to the network signal condition; therefore, WLAN
      2.4GHz will not transmit simultaneously with WLAN 5GHz.




        Test Engineer :    Jimmy Cheng




SPORTON INTERNATIONAL INC.                                                      Page Number        : 29 of 33
TEL : 886—3—327—3456                                                            Report Issued Date : Sep. 30, 2013
FAX : 886—3—328—4978                                                            Report Version      : Rev. 01
FCC ID : MQA4AU7212


                FCC SAR Test Report                                                               Report No. : FA370237



14. Uncertainty Assessment
    The component of uncertainly may generally be categorized according to the methods used to evaluate them. The
    evaluation of uncertainly by the statistical analysis of a series of observations is termed a Type An evaluation of
    uncertainty. The evaluation of uncertainty by means other than the statistical analysis of a series of observation is
    termed a Type B evaluation of uncertainty. Each component of uncertainty, however evaluated, is represented by an
    estimated standard deviation, termed standard uncertainty, which is determined by the positive square root of the
    estimated variance.

    A Type A evaluation of standard uncertainty may be based on any valid statistical method for treating data. This
    includes calculating the standard deviation of the mean of a series of independent observations; using the method of
    least squares to fit a curve to the data in order to estimate the parameter of the curve and their standard deviations; or
    carrying out an analysis of variance in order to identify and quantify random effects in certain kinds of measurement.

    A type B evaluation of standard uncertainty is typically based on scientific judgment using all of the relevant
    information available. These may include previous measurement data, experience, and knowledge of the behavior
    and properties of relevant materials and instruments, manufacture’s specification, data provided in calibration reports
    and uncertainties assigned to reference data taken from handbooks. Broadly speaking, the uncertainty is either
    obtained from an outdoor source or obtained from an assumed distribution, such as the normal distribution,
    rectangular or triangular distributions indicated in Table 12.1

      Uncertainty Distributions               Normal            Rectangular            Triangular             U-Shape
                                (a)                   (b)
          Multi-plying Factor                   1/k                  1/√3                  1/√6                 1/√2
    (a) standard uncertainty is determined as the product of the multiplying factor and the estimated range of
        variations in the measured quantity
    (b) κ is the coverage factor
                            Table 14.1 Standard Uncertainty for Assumed Distribution

    The combined standard uncertainty of the measurement result represents the estimated standard deviation of the
    result. It is obtained by combining the individual standard uncertainties of both Type A and Type B evaluation using
    the usual “root-sum-squares” (RSS) methods of combining standard deviations by taking the positive square root of
    the estimated variances.

    Expanded uncertainty is a measure of uncertainty that defines an interval about the measurement result within which
    the measured value is confidently believed to lie. It is obtained by multiplying the combined standard uncertainty by a
    coverage factor. Typically, the coverage factor ranges from 2 to 3. Using a coverage factor allows the true value of a
    measured quantity to be specified with a defined probability within the specified uncertainty range. For purpose of this
    document, a coverage factor two is used, which corresponds to confidence interval of about 95 %. The DASY
    uncertainty Budget is shown in the following tables.




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TEL : 886-3-327-3456                                                                   Report Issued Date : Sep. 30, 2013
FAX : 886-3-328-4978                                                                   Report Version     : Rev. 01
FCC ID : MQ4AU7212


                 FCC SAR Test Report                                                   Report No. : FA370237



                                   Uncertainty                                           Standard    Standard
                                               Probability             Ci        Ci
        Error Description            Value                  Divisor                     Uncertainty Uncertainty
                                               Distribution           (1g)     (10g)
                                      (±%)                                                 (1g)        (10g)

Measurement System
Probe Calibration                      6.0       Normal        1       1         1        ± 6.0 %         ± 6.0 %
Axial Isotropy                         4.7     Rectangular    √3      0.7       0.7       ± 1.9 %         ± 1.9 %
Hemispherical Isotropy                 9.6     Rectangular    √3      0.7       0.7       ± 3.9 %         ± 3.9 %
Boundary Effects                       1.0     Rectangular    √3       1         1        ± 0.6 %         ± 0.6 %
Linearity                              4.7     Rectangular    √3       1         1        ± 2.7 %         ± 2.7 %
System Detection Limits                1.0     Rectangular    √3       1         1        ± 0.6 %         ± 0.6 %
Readout Electronics                    0.3       Normal        1       1         1        ± 0.3 %         ± 0.3 %
Response Time                          0.8     Rectangular    √3       1         1        ± 0.5 %         ± 0.5 %
Integration Time                       2.6     Rectangular    √3       1         1        ± 1.5 %         ± 1.5 %
RF Ambient Noise                       3.0     Rectangular    √3       1         1        ± 1.7 %         ± 1.7 %
RF Ambient Reflections                 3.0     Rectangular    √3       1         1        ± 1.7 %         ± 1.7 %
Probe Positioner                       0.4     Rectangular    √3       1         1        ± 0.2 %         ± 0.2 %
Probe Positioning                      2.9     Rectangular    √3       1         1        ± 1.7 %         ± 1.7 %
Max. SAR Eval.                         1.0     Rectangular    √3       1         1        ± 0.6 %         ± 0.6 %
Test Sample Related
Device Positioning                     2.9       Normal        1       1         1        ± 2.9 %         ± 2.9 %
Device Holder                          3.6       Normal        1       1         1        ± 3.6 %         ± 3.6 %
Power Drift                            5.0     Rectangular    √3       1         1        ± 2.9 %         ± 2.9 %
Phantom and Setup
Phantom Uncertainty                    4.0     Rectangular    √3       1         1        ± 2.3 %         ± 2.3 %
Liquid Conductivity (Target)           5.0     Rectangular    √3      0.64      0.43      ± 1.8 %         ± 1.2 %
Liquid Conductivity (Meas.)            2.5       Normal        1      0.64      0.43      ± 1.6 %         ± 1.1 %
Liquid Permittivity (Target)           5.0     Rectangular    √3      0.6       0.49      ± 1.7 %         ± 1.4 %
Liquid Permittivity (Meas.)            2.5       Normal        1      0.6       0.49      ± 1.5 %         ± 1.2 %
Combined Standard Uncertainty                                                            ± 11.0 %         ± 10.8 %
Coverage Factor for 95 %                                                                            K=2
Expanded Uncertainty                                                                     ± 22.0 %         ± 21.5 %
                   Table 14.2 Uncertainty Budget of DASY for frequency range 300 MHz to 3 GHz




SPORTON INTERNATIONAL INC.                                                   Page Number        : 31 of 33
TEL : 886-3-327-3456                                                         Report Issued Date : Sep. 30, 2013
FAX : 886-3-328-4978                                                         Report Version     : Rev. 01
FCC ID : MQ4AU7212


                 FCC SAR Test Report                                                   Report No. : FA370237



                                   Uncertainty                                           Standard    Standard
                                               Probability             Ci        Ci
        Error Description            Value                  Divisor                     Uncertainty Uncertainty
                                               Distribution           (1g)     (10g)
                                      (±%)                                                 (1g)        (10g)

Measurement System
Probe Calibration                     6.55       Normal        1       1         1       ± 6.55 %         ± 6.55 %
Axial Isotropy                         4.7     Rectangular    √3      0.7       0.7       ± 1.9 %         ± 1.9 %
Hemispherical Isotropy                 9.6     Rectangular    √3      0.7       0.7       ± 3.9 %         ± 3.9 %
Boundary Effects                       2.0     Rectangular    √3       1         1        ± 1.2 %         ± 1.2 %
Linearity                              4.7     Rectangular    √3       1         1        ± 2.7 %         ± 2.7 %
System Detection Limits                1.0     Rectangular    √3       1         1        ± 0.6 %         ± 0.6 %
Readout Electronics                    0.3       Normal        1       1         1        ± 0.3 %         ± 0.3 %
Response Time                          0.8     Rectangular    √3       1         1        ± 0.5 %         ± 0.5 %
Integration Time                       2.6     Rectangular    √3       1         1        ± 1.5 %         ± 1.5 %
RF Ambient Noise                       3.0     Rectangular    √3       1         1        ± 1.7 %         ± 1.7 %
RF Ambient Reflections                 3.0     Rectangular    √3       1         1        ± 1.7 %         ± 1.7 %
Probe Positioner                       0.8     Rectangular    √3       1         1        ± 0.5 %         ± 0.5 %
Probe Positioning                      9.9     Rectangular    √3       1         1        ± 5.7 %         ± 5.7 %
Max. SAR Eval.                         4.0     Rectangular    √3       1         1        ± 2.3 %         ± 2.3 %
Test Sample Related
Device Positioning                     2.9       Normal        1       1         1        ± 2.9 %         ± 2.9 %
Device Holder                          3.6       Normal        1       1         1        ± 3.6 %         ± 3.6 %
Power Drift                            5.0     Rectangular    √3       1         1        ± 2.9 %         ± 2.9 %
Phantom and Setup
Phantom Uncertainty                    4.0     Rectangular    √3       1         1        ± 2.3 %         ± 2.3 %
Liquid Conductivity (Target)           5.0     Rectangular    √3      0.64      0.43      ± 1.8 %         ± 1.2 %
Liquid Conductivity (Meas.)            2.5       Normal        1      0.64      0.43      ± 1.6 %         ± 1.1 %
Liquid Permittivity (Target)           5.0     Rectangular    √3      0.6       0.49      ± 1.7 %         ± 1.4 %
Liquid Permittivity (Meas.)            2.5       Normal        1      0.6       0.49      ± 1.5 %         ± 1.2 %
Combined Standard Uncertainty                                                            ± 12.8 %         ± 12.6 %
Coverage Factor for 95 %                                                                            K=2
Expanded Uncertainty                                                                     ± 25.6 %         ± 25.2 %
                    Table 14.3 Uncertainty Budget of DASY for frequency range 3 GHz to 6 GHz




SPORTON INTERNATIONAL INC.                                                   Page Number        : 32 of 33
TEL : 886-3-327-3456                                                         Report Issued Date : Sep. 30, 2013
FAX : 886-3-328-4978                                                         Report Version     : Rev. 01
FCC ID : MQ4AU7212


              FCC SAR Test Report                                                Report No. : FA370237



15. 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. 1528-2003, “Recommended Practice for Determining the Peak Spatial-Average
            Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices:
            Measurement Techniques”, December 2003
      [4]   SPEAG DASY System Handbook
      [5]   FCC KDB 248227 D01 v01r02, “SAR Measurement Procedures for 802.11 a/b/g Transmitters”,
            May 2007
      [6]   FCC KDB 447498 D01 v05r01, “Mobile and Portable Device RF Exposure Procedures and
            Equipment Authorization Policies”, May 2013
      [7]   FCC KDB 644545 D01 v01r01, "Guidance for IEEE 802.11ac and Pre-ac Device Emission
            Testing", Apr 2013




SPORTON INTERNATIONAL INC.                                             Page Number        : 33 of 33
TEL : 886-3-327-3456                                                   Report Issued Date : Sep. 30, 2013
FAX : 886-3-328-4978                                                   Report Version     : Rev. 01
FCC ID : MQ4AU7212



Document Created: 2013-09-30 18:32:04
Document Modified: 2013-09-30 18:32:04

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