SAR Report (2 of 3)

FCC ID: 2AQ9Z-K9VIRAATPLUS

RF Exposure Info

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NTEKIE:W                                             Accreviteo
                                                   Certificate #4258.01    ~




                           COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref ACR.261.2.17.SATU.A




                                    Name                                  Function                        Date                  Signature
  Prepared by :                Jérome LUC                           Product Manager                  9/18/2017                   fi

  Checked by :                  Jérome LUC                          Product Manager                  9/18/2017                   fi

  Approved by:            Kim RUTKOWSKI                              Quality Manager                 9/18/2017                 ;. Aurthowdh!




                                                                           Customer Name
                                                                          NTEK TESTING
                                         Distribution :                   TECHNOLOGY
                                                                            CO., LTD.




     Issue                    Date                                                         Modifications
       A                  9/18/2017                  Initial release




                                                                   Page: 2/10

                  This document shall not be reproduced, except in full orin part, without the written approvalofMYG.
                  The information contained herein is to be used onlyfor the purpose for which it is submitted and is not to
                  be released in whole or part without written approval ofMVG.


NTEKJL:JJ*=«                                                         KA
                                                                   Certificate #4298.01       ~




                                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                                 Ref: ACR 261217.SATUA




                                                                TABLE OF CONTENTS




   2          PRODUCT DESCRIPTION GENERAL INFORMATION .. ... 22222000 eenmreverermererererenereeneenennerennenerrnnrnneceeee 4


   3          MEASUREMENT METHOD ........cememmemmmmeerenmenrerererereerereererrereneerenernrnenneenreeennenrenennnneenennnneenrnnnnnceene 4

       321       LIN@ATitY . ccvcmmmmmemmmmccnmmmermmrmnineeremncrrrmnccenrnnnrecrennrncnrrnncenenernnennrenrearennrcvenrnsncennrncenreeenneenennnencrenenccene ns4

       322.      SENSIRIVITY ... ccccccencemmecneenmenereerennremrenmeneeerncvenereneeeereerneeereeneennneenneneeen se veenvevvenvensvevvenvenevenvennenvenvenvevevenvecvenn en4

       3.3       LOW@P D@t@CHION LIMit ......ccscessenensennennnnncenmncerneeneeereenmenneennennenerneennenvennnennennencnnnrnnnncennenneennennenmernennencennnnccennens 5

       34—       ISOfTODY ... .c cccscucnncnmmmmenmennnnnrninnenmancrnenccreenenrrernmnrncinnrnncrnererrnnenvennnravrnnrenreerrnnrncervernernnennneernennnnncenmenccncens 5

       3.5.      BOUNG@FY EffECE ..... ... cccceceemeeneenemnerenrennnncenmnceeneenneenennenneennnnenneenernnenennenmnn en en en necvnnnnevnnvennnneenvenseneennnnc en ons 5


   4          MEASUREMENT UNCERTAINTY ... 0e emeeermemeenereerrereeerennrererereeeneerereenennereenennerennnne n en nneneenenecncnnes 9


   5          CALIBRATION MEASUREMENT RESULTS.... ... en m mmmmmereeerrerrnnereenrerneeeerereeennrnreneennenerennenernrnrnneceen 6

       5.1       SENSIRIVIEY in &.....cccaccervcemcenmenennennmenmnnncensrncernerrerereennarneensennermerneensenvenseavennencensrnsrecervencrnnnnnneeneennencennenccensena 6

       5.2       LIN@ATItY . ... ccccocsccnncrmmncermenmnnerernninnenminncrnnncereenenrrernmrrncinnrnncrnererrnnenvennsranennrennerrnnrncervenernnennneernennnnncenmenccncens 7

       5.3       SENSHRIVItY 1M IIGUIG.... .cc ceceeneennenernnneneennnneeennevenereneeeerenrnnerenvenernvenerenennennennennvenrenvensrevvenvenerenvenveneenvensencennvnccenn ons 7


       5.4       ISOUODY .... ccccccscennenmncenmenmrnenennanmenmnnncensrncernerrerereannarncnsennernerneennenvenseavennrncernsrnnnncerverncrnsennneenennnencennenccns en8




                                                                                   Page: 3/10

                             This document shall not be reproduced, except in full or in part, without the written approval ofMVG
                             The information contained herem is to be used onlyfor the purposefor which it is submitted and is not to
                             be released in whole or part without written approval ofMVG.


                                    Mw


                                    ns           C
                                    ZmOS         (Accreoireo
                                       w
                                               Certificate #4298 01    ~




                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref ACR261 2.17.SATUA



1             DEVICE UNDER TEST


                                                     Device Under Test
    Device Type                                                       COMOSAR DOSIMETRIC E FIELD PROBE
    Manufacturer                                                      MVG
    Model                                                             SSE2
    Serial Number                                                     SN 08/16 EPGO287
    Product Condition (new / used)                                    Used
    Frequency Range of Probe                                          0.4 GHz—6GHz
    Resistance of Three Dipoles at Connector                          Dipole 1: R1=0.208 MQ
                                                                      Dipole 2: R2=0.196 MQ
                                                                      Dipole 3: R3=0.196 MQ

A yearly calibration interval is recommended.

2           PRODUCT DESCRIPTION GENERAL INFORMATION

MVG‘s COMOSAR E field Probes are built in accordance to the IEEE 1528, OET 65 Bulletin C and
CEUTEC 62209 standards.




                           Figure 1 — MVG COMOSAR Dosimetric Efield Dipole

    Probe Length                                                      330 mm
    Length of Individual Dipoles                                      2 mm
    Maximum external diameter                                         8 mm
    Probe Tip Extemnal Diameter                                       2.5 mm
    Distance between dipoles / probe extremity                        1 mm


        3     MEASUREMENT METHOD
The IEEE 1528. OET 65 Bulletin C. CENELEC ENS0361 and CEIMIEC 62209 standards provide
recommended practices for the probe calibrations. including the performance characteristics of
interest and methods by which to assess theiraffect. All calibrations / measurements performed meet
the fore mentioned standards.

        3.1    LINEARITY
The evaluation of the linearity was done in free space using the waveguide, performing a power
sweep to coverthe SAR range 0.01 W/kg to 100W/kg.

        3.2    SENSIMMIVITY
The sensitivity factors of the three dipoles were determined using a two step calibration method (air
and tissue simulating liquid) using waveguides as outlined in the standards.
                                                                Page: 4/10

                This document shall not be reproduced, except infull or in part, without the written approvalofMYVG.
                The information contained herein is to be used onlyfor the purposefor which it is submitted and is not to
                be released in whole or part without written approval ofMYG.


                                          /


NTEKIE:M®&®                                           Accreoiteo
                                                    Certificate #4298.01    ~




                             COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                   Ref ACR261 2.17.SATUA




           3.3   LOWER DETECTION LIMIT
  The lower detection limit was assessed using the same measurement set up as used for the linearity
  measurement. The required lower detection limit is 10 mW/kg.

           3.4     ISOTROPY
  The axial isotropy was evaluated by exposing the probe to a reference wave from a standard dipole
  with the dipole mounted under the flat phantom in the test configuration suggested for system
  validations and checks. The probe was rotated along its main axis from 0 — 360 degrees in 15 degree
  steps. The hemispherical isotropy is determined by inserting the probe in a thin plastic box filled
  with tissue—equivalent liquid. with the plastic box illuminated with the fields from a half wave dipole.
  The dipole is rotated about its axis (0%180°) im 15° increments. At each step the probe is rotated
  about its axis (0°—360°).

           3.5      BOUNDARY EFFECT
  The boundary effect is defined as the deviation between the SAR measured data and the expected
  exponential decay in the liquid when the probe is oriented normal to the interface. To evaluate this
  effect. the liquid filled flat phantom is exposed to fields fromeither a reference dipole or waveguide.
  With the probe normal to the phantom surface, the peak spatial average SAR is measured and
  compared to the analytical value at the surface.

  4              MEASUREMENT UNCERTAINTY

  The guidelines outlined in the IEEE 1528, OET 65 Bulletin C. CENELEC EN50361 and CEIMIEC
  62209 standards were followed to generate the measurement uncertainty associated with an E—field
  probe calibration using the waveguide technique. All uncertainties listed below represent an
  expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor
  of k=2. traceable to the Internationally Accepted Guides to Measurement Uncertainty.

  Uncertainty analysis of the probe calibration in waveguide


  Incident or forward power                           3.00%                Rectangular             «E              1            1.732%

  Reflected power                                     3.00%                Rectangular             J}T             1            1.732%

  Liquid conductivity                                 5.00%                Rectangular             fi               1            2.0907%

  Liquid permittivity                                 4.00%                Rectangular             '\E             1            2.309%
  Field homageneity                                   3.00%                Rectangular             «,E             1            1.732%

  Field probe positioning                             5.00%                Rectangular             '\E             1            2.007%
  Field probe linearity                               3.00%                Rectangular             ,‘E             1            1.732%

      Combined standard uncertainty                                                                                             5.831%

        5656contienceJovelh22                                                                                                   120%
                                                                    Page: 5/10

                    This document shall not be reproduced, except in full or in part, without the written approval ofMVG.
                    The information contained heremn is to be used onlyfor the purposefor which it is submitted and is not to
                    be released in whole or part without written approval ofMVG.


NT                                                       Certificate #4298.01        ~




                                   COMOSAR E—FIELD PROBE CALIBRATION REPORT                                             Ref ACR.261 2.17.SATUA




        5     CALIBRATION MEASUREMENT RESULTS


                                                         Calibration Parameters
     Liquid Temperature                                                          21 °C
     Lab Temperature                                                             21 °C
     Lab Humidity                                                                45 %


        5.1   SENSITIVITY IN AR



                                           Normx dipole Normy dipole Normz dipole
                                           1 (uV/(V/im)) 2 (uv/(V/im)) 3 (uV/(V/Am))
                                                  0.69                          0.78              0.61


                                           DCP dipole 1              DCP dipole 2             DCP dipole 3
                                                  (mV)                       (mV)                (mV)
                                                   92                           90                 96


 Calibration curves ei=f(V) (i=1.2.3) allow to obtain H—field value using the formula:
                                                               E=,]E] + E/ +E

                                                  Calibration curves

                                  674—
                                  €00
                                                                                         _2
                                  500
                                                                        t
                  E—Field (Vin)




                                  400
                                  300
                                                          L                                                  Dipole 1
                                                                                                             Dipole 2

                                  200                                                                        Dipole 3


                                    5)
                                  100

                                      1
                                    0.00   0.02         0.04        0.06         0.08
                                                                 Voltage (V]




                                                                           Page: 6/10

                This document shall not be reproduced, except infull or in part, without the written approval ofMVG
                The information contained herein is to be used only for the purposefor which it is submitted and is not to
                be released in whole or part without written approval ofMVG.


NTEKIE:W                                                  «a
                                                           Accreviteo
                                                         Certificate #4258.01




                              COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                Ref ACR 2612.17.SATUA




        5.2          LINEARITY

                                         Linearity
             1.00—
         0.75—
       @ oso—~
       s 025
       2 o00—
       @ 425—
       5 050—
         D75—
         1.00—,                                                                     &
                         so     100     150      200        250      300          358
                                         E—Field (V/m]

      Linearity:1+1.86% (+/0.08dB




        5.3          SENSITIVITY IN LQUID


    Liquid              Frequeney           Permittivity               Epsilon ($/m)       ConvE
                        (MHz
                        100MEz
    HL750                  750                   42.09                          0.91         1.44
    BL750                  750                   55.69                          0.95         1.49
    HL850                 835                    42.71                          0.89         1.48
    BL850                 835                    57.52                          1.03         1.53
    HL900                 900                    41.94                          0.93         1.50
    BL900                 900                    52.87                          1.09         1.54
    HL1800                1800                   40.62                          1.39         1.75
    BL1800                1800                   33.22                          1.47         1.79
    HL1900                1900                   41.22                          1.37         2.00
    BL1900                1900                   50.99                          1.52         2.07
    HL2000               2000                    40.39                          1.36         1.93
    BL2000               2000                    54.39                          1.54         1.99
    HL2450               2450                    40.46                          1.87         218
    BL2450               2450                    54.62                          1.95         2.27
    HL2600               2600                    38.46                          2.01         2.15
    BL2600               2600                    51.98                          2.16         219
    HL5200                5200                   35.14                          4.74         2.37
    BL5200                5200                   49.01                          5.27         246
    HL5400                5400                   34.52                          4.77         2.33
    BL5400                5400                   49.67                          5.45         241
    HL5600                5600                   37.08                          5.03         247
    BL5600                5600                   47.57                          5.69         2.54
    HL5800                5800                   34.64                          5.19         2.51
    BLS800                5800                   49.82                          5.94         2.57




  LOWER DETECTION LIMIT: 7mW/kg

                                                                        Page: 7/10

                     This document shall not be reproduced, except in full orin part, without the written approval ofMVG.
                     The information contained herem is to be used onlyforthe purposeforwhich it is submitted and is not to
                     be released in whole or part withoutwritten approval ofMVG.


NT                                               Accreviteo
                                               Certificate #4298.01    ~                                             ‘




                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                   Ref ACR261 2.17 SATUA




        54    ISOTROPY
 HL900 MHz
 — Axial isotropy:                             0.05 dB
 — Hemispherical isotropy:                     0.06 dB


                                               Isotropy curves
                                   s
                                   at                                          Dipoleaid"

                                   s
                                   as
                                                                               en
                                                                               Dipolecr4u
                                   a2

                                   ao
                                   a2

                                   as
                                   a¢

                                  a
                                   * Te as as on dz do o2 o+ os ns 1b



 HL1800 MHz
 — Axial isotropy:                             0.05 dB
 — Hemispherical isotropy:                     0.08 dB


                                               Isotropy curves
                                   10—
                                   o                                           Dipole ard"

                                   as                                          (oess
                                   as                                          Dipole ar4u
                                  a2
                                  «o
                                  a
                                  as
                                  as
                                  a
                                  10                               4
                                    4o ds as o6 42 ob o2 oe os ns 10




                                                                 Page: 8/10

               This document shall not be reproduced, except in full or in part, without the written approval ofMVG.
               The information contained herein is to be used onlyfor the purposefor which it is submitted and is not to
               be released im whole or part without written approval ofMVG.


NT                                                Accreviteo
                                               Certificate #4298.01    ~




                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                   Ref ACR261 2.17.SATUA




 HL5600 MHz
 — Axial isotropy:                             0.06 dB
 — Hemispherical isotropy:                     0.08 dB


                                               isotrapy curves
                                   10—
                                   as                                          Dicot s10°
                                   as                                          Dipot at30
                                                                               Digole a1edr
                                   a                                           Cinot a190
                                   a
                                   ao
                                   a
                                  a
                                  as
                                  a
                                  10.                              \
                                    4e as as m« az on oz o# o6 na 10




                                                                 Page: 9/10

               This document shall not be reproduced, except infull or in part, without the written approvalofMVG.
               The information contained herein is to be used onlyfor the purposefor which it is submitted and is not to
               be released m whole or part without written approval ofMVG


NTEKJILiW)*=«
                                        in
                                        z7e Accreviteo
                                        ///’f\\\p
                                                     Certificate #4298.01




                              COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                   Ref: ACR.261.2.17.SATU.A




          6    LIST OF EQUIPMENT



                                                   Equipment Summary Sheet

      Equipment                 Manufacturer /               Identification No                Current                       Next Calibration
      Description                   Model                                              ‘| Calibration Date                        Date

       Flat Phantom                      mve                   sN—2009—sam7z1 |Validated.
                                                                              required.
                                                                                          No cal                         Validated.
                                                                                                                         required.
                                                                                                                                         No cal
  |COMOSAR Test Bench]                Version 3                             NA           Validated.
                                                                                         required.
                                                                                                    No cal               Validated.
                                                                                                                         required.
                                                                                                                                         No cal
    Network Analyzer            Rh°4®Z&Vimwarz                      sN100132                       o22018                        022019
     Reference Probe                     MVG                    EP 94 SN 37/08                     10/2016                       10/2017

        Multimeter                 Keithley 2000                       1188656                     01/2017                       01/2020

     Signal Generator             Agilent E4438C                  MY49070581                       01/2017                       01/2020
         Amplifier                  Aethercomm                         SN 046             Characterized prigr to |Characterized pri_or to
                                                                                          test. No cal required. |test. No cal required.

       Power Meter                   HP E4418A                     US38261498                      01/2017                       01/2020

      Power Sensor                 HP ECP—E26A                     US37181460                      01/2017                       01/2020

                                  Narda 4216—20                         o1386             Characterized prior to |Characterized pri_or to
    Directional Coupler
                                                                                          test. No cal required. test. No cal required.
                                                                               Validated. No cal                         |Validated. No cal
       Waveguide                  Mega Industries             069Y7—158—13—712 required.                                 required.

  Waveguide Transition            Mega Industries             O6gY7—158—13—701 |Validated.
                                                                               required.
                                                                                           No cal                        Validated.
                                                                                                                         required.
                                                                                                                                    No cal
                                                                                         Validated. No cal               |Validated. No cal
  Waveguide Termination           Mega Industries             O69Y7—158—13—701
                                                                                         required.                       required.
  Temperature / Humidity
                                 Control Company                    150798832                      10/2015                       10/2017
         Sensor




                                                                    Page: 10/10

                     This document shall not be reproduced, except in full or in part, without the written approval ofMVG
                     The information contained herein is to be used onlyfor the purposefor which it is submitted and is not to
                     be released in whole orpart without written approval ofMVG.


NTEKIE:I6                    [accreoiteo)
                           Certificate #4258.01   ~




      COMOSAR E—Field Probe Calibration Report



                                                      Ref : ACR.260.1.18.SATU.A




    SHENZHEN NTEK TESTING TECHNOLOGY
                CO., LTD.
       BUILDING E, FENDA SCIENCE PARK, SANWEI
            COMMUNITY, XIXIANG STREET,
    BAO‘AN DISTRICT, SHENZHEN GUANGDONG, CHINA
    MVG COMOSAR DOSIMETRIC E—FIELD PROBE
            SERIAL NO.: SN 08/16 EPGO287

                                Calibrated at MVG US
                    2105 Barrett Park Dr. — Kennesaw, GA 30144
                               $
                              &\_/*

                               /—'\
                                  \'ACCREDITEDI
                               /ldul                  cuttresioncent eszssar

                           Calibration Date: 09/17/2018

       Summary:

       This document presents the method and results from an accredited COMOSAR Dosimetric E—Field
       Probe calibration performed in MVG USA using the CALISAR / CALIBAIR test bench, for use
       with a COMOSAR system only. All calibration results are traceable to national metrology
       institutions.


NTEKIE:W                                                Accreviteo
                                                      Certificate #4258.01    ~




  mvG                         COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                     Ref: ACR.260.1.18.SATUA




                                       Name                                  Function                         Date                  Signature
    .     .      .                  roa                                                                                               Lz 2
  Prepared by :                   Jérome LUC                           Product Manager                   9/17/2018                   9s

  Checked by :                    Jérome LUC                           Product Manager                   9/17/2018                   ”)/;7’

  Approved by :              Kim RUTKOWSKI                             Quality Manager                   9/17/2018                 hum Authowhd




                                                                              Customer Name
                                                                             SHENZHEN NTEK
                                              oi .
                                            Distribution :
                                                                                  TESTNG
                                                                              TECHNOLOGY
                                                                                  CO., LTD.




        Issue                  Date                                                            Modifications
          A                  9/17/2018                  Initial release




                                                                     Page: 2/10

                     This document shall not be reprodiuced, except in full orin part, without the written approval ofMVG.
                     The information contained herein is to be used only for the purpose for which it is submitted and is not to
                     be released in whote or part without written approval ofMYG.


NTEKJEiJJ*=                                  **
                                                       «aAccreoiteo)
                                                      Certificate #4298.01    ~                                              ‘




                              COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                   Ref: ACR.260.1.18.SATUA




                                                       TABLE OF CONTENTS




   1     D@ViG@ UBG@F T@St ........00000000eeeeeememennenimencnmenenenenennenemnnnenee en eenenen enc neneme ces 4
   2     PIOGUCt DESCTIDMHOM ...... .. ... 200ceccceeeeeeeeenenncmmenenenenennenmvvneeee en rennn en neneveves 4
       2.1     General Information                                                                                                            4
   CSEesnnblEt e 4
       3.1     Linearity                                                                                                                      4
       3.2      Sensitivity
       3.3     Lower Detection Limit                                                                                                          5
       3.4     Isotropy                                                                                                                       5
       3.5     Boundary Effect                                                                                                                5
   4     MEASUIEM@NE URMCETIAIMEY............s iess ccecennmmnemememnnmnnnnnnnnmenemene mm en 5
   5     CalIiDrAtON MEASUI@MENE R@SUIES ........ cssc mm 6
       5.1      Sensitivity in air                                                                                                            6
       5.2     Linearity                                                                                                                      7
       5.3      Sensitivity in liquid                                                                                                         7
       5.4     Isotropy                                                                                                                       8
   6     LiSt Of EQUIDIMENE ... ... .l lcc sc scscsccicecccccnnnnnnnnnmnmmemenneememnnmmmeene ns 10




                                                                     Page: 3/10

                      This document shall not be reproduced, except in full orin part, without the written approval ofMVG.
                      The information contained herein is to be used onlyfor the purposeforwhich it is submitted and is not to
                      be released in whole or part without written approval ofMVG.


                                        C
NTEKJIEiW)*= #&a                                     Certificate #4298.01     ~




   mvG                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref ACR.260.1.18.SATUA



   1               DEVICE UNDER TEST

                                                          Device Under Test
         Device Type                                                        COMOSAR DOSIMETRIC E FIELD PROBE
         Manufacturer                                                       MVG
         Model                                                              SSE2
         Serial Number                                                      SN 08/16 EPGO287
         Product Condition (new / used)                                     Used
         Frequency Range of Probe                                           0.15 GHz—6GHz
         Resistance of Three Dipoles at Connector                           Dipole 1: R1=0.209 MQ
                                                                            Dipole 2: R2=0.196 MQ
                                                                            Dipole 3: R3=0.197 MQ

   A yearly calibration interval is recommended.

   2               PRODUCT DESCRIPTION


   2.1          GENERAL INFORMATION

   MVG‘s COMOSAR E field Probes are built in accordance to the IEEE 1528. OET 65 Bulletin C and
   CELIEC 62209 standards.




                                 Figure 1 — MVG COMOSAR Dosimetric Efield Dipole

         Probe Length                                                       330 mm
         Length of Individual Dipoles                                       2 mm
         Maximum external diameter                                          8 mm
         Probe Tip External Diameter                                        2.5 mm
         Distance between dipoles / probe extremity                         1 mm


            3       MEASUREMENT METHOD
   The IEEE 1528, OET 65 Bulletin C, CENELEC EN50361 and CEIIEC 62209 standards provide
   recommended practices for the probe calibrations. including the performance characteristics of
   interest and methods by which to assess their affect. All calibrations / measurements performed meet
   the fore mentioned standards.

             3.1    LINEARITY
   The evaluation of the linearity was done in free space using the waveguide. performing a power
   sweep to cover the SAR range 0.01 W/kg to 100W/keg.


                                                                    Page: 4/10

                     This document shall not be reprodiuced, except in full or in part, without the written approval ofMVG.
                     The information contained herein is to be used only for the purposefor which it is submitted and is not to
                     be released in whote or part without written approval ofMYG.


                                     wl
                                     t /n



                                                 Certificate #4298.01




mvG                       COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref ACR.260.1.18.SATUA



       3.2      SENSIMMIVITY
The sensitivity factors of the three dipoles were determined using a two step calibration method (air
and tissue simulating liquid) using waveguides as outlined in the standards.

       3.3       LOWER DETECTION LIMIT
The lower detection limit was assessed using the same measurement set up as used for the linearity
measurement. The required lower detection limit is 10 mW/kg.

       34      ISOTROPY
The axial isotropy was evaluated by exposing the probe to a reference wave from a standard dipole
with the dipole mounted under the flat phantom in the test configuration suggested for system
validations and checks. The probe was rotated along its main axis from 0 — 360 degrees in 15 degree
steps. The hemispherical isotropy is determined by inserting the probe in a thin plastic box filled
with tissue—equivalent liquid. with the plastic box illuminated with the fields from a half wave dipole.
The dipole is rotated about its axis (0°—180°) in 15° increments. At each step the probe is rotated
about its axis (0%—360°).

       3.5       BOUNDARY EFFECT
The boundary effect is defined as the deviation between the SAR measured data and the expected
exponential decay in the liquid when the probe is oriented normal to the interface. To evaluate this
effect, the liquid filled flat phantom is exposed to fields from either a reference dipole or waveguide.
With the probe normal to the phantom surface. the peak spatial average SAR is measured and
compared to the analytical value at the surface.

4            MEASUREMENT UNCERTAINTY

The guidelines outlined in the IEEE 1528. OET 65 Bulletin C. CENELEC ENS0361 and CEMIEC
62209 standards were followed to generate the measurement uncertainty associated with an E—field
probe calibration using the waveguide technique. All uncertainties listed below represent an
expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor
of k=2, traceable to the Internationally Accepted Guides to Measurement Uncertainty.

        Uncertainty analysis of the probe calibration in waveguide
                 ERROR sources                     U"":Ieu':’(':;"      I;:’:;:::x       Divisor          ci       j::’“':i’:;’o
        Incident or forward power                     3.00%             Rectanqular          ,\B          1             1.732%

        Reflected power                               3.00%             Rectangular          —\fi          1             1.732%

        Liquid conductivity                           5.00%             Rectangular          ~B           1             2.987%

        Liquid permittivity                           4.00%             Rectanqular          -\5          1             2.309%

        Field homogeneity                             3.00%             Rectangular          —\E          1             1.732%

        Field probe positioning                       5.00%             Rectangular          »\E          1             2.987%

        Field probe linearity                         3.00%             Rectanqular          «E           1             1.732%

         Combined standard uncertainty                                                                                  5.831%

             9552contclencelovelk2 2                                                                                     120%
                                                                Page: 5/10

                 This document shall not be reprodiuced, except in full or in part, without the written approval ofMVG.
                 The information contained herein is to be used only for the purposefor which it is submitted and is not to
                 be released in whote or part without written approval ofMYG.


NTEKIE:W                                            Accreviteo
                                                  Certificate #4258.01        ~




  us                      COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                     Ref: ACR.260.1.18.SATUA




         5     CALIBRATION MEASUREMENT RESULTS


                                                  Calibration Parameters
     Liquid Temperature                                                  21 °C
     Lab Temperature                                                     21 °C
     Lab Humidity                                                        45 %


         5.1   SENSITIVITY IN AR



                                    Normx dipole Normy dipole Normz dipole
                                    1 (uV/(V/im))| 2 (uV/(V/imY) 3 (uV/(V/m))
                                         0.66           0.75         0.58


                                    DCP dipole 1              DCP dipole 2           DCP dipole 3
                                       (mV)                      (mV)                   (mV)
                                             93                          93                   98


  Calibration curves ei=f(V) (i=1,2,3) allow to obtain H—field value using the formula:
                                                        E=,/E]l+E,] +E


                                             Calibration curves




                                                                                                           Dipole 1
                                                                                                           Dipole 2
                                                                                                           Dipole 3




                                      0.02        ade        oos         oos      010         0.12
                                                          Voltage [V)




                                                                 Page: 6/10

                 This document shall not be reprodiuced, except in full orin part, without the written approval ofMVG.
                 The information contained herein is to be used only for the purpose for which it is submitted and is not to
                 be released in whote or part without written approval ofMYG.


NTEKIE:W                                                 «a
                                                         Accreviteo
                                                     Certificate #4258.01      ~




  mVG                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref: ACR.260.1.18.SATUA




        5.2       LINEARITY

                                        Linearity
         1.00—
         0.75
       @ 050
       5 us
       2 000
       § 125
       5 050
         475
         1.007,
                       so         400   is0      200     &0       300         370
                                         E—Field (Vém)

       Linearity:I+/1.89% (+0.08dB




        5.3       SENSITIVITY IN LQUID

    Liquid            Frequency             Permittivity            Epsilon (S/m)            ConvE
                        MHz +/—
                       100MHz)
    HL750                   750                 40.03                       0.93               1.45
    BL750                   750.                56.83                       1.00               1.49
    HL850                   835                 42.19                       0.90               1.50
    BL§50                   835                  54.67                      1.01               1.56
    HL900                   900                 42.08                       1.01               L.S1
    HL1800                  1800                41.68                       1.46               1.71
    BL1800                  1800                53.86                       1.46               1.77
    HL1900                  1900                 38.45                      1.45              2.03
    BL1900                  1900                 53.32                      1.56              2.07
    HL2000                  2000                 38.26                      1.38              1.76
    HL2450                  2450                 37.50                      1.80              2.00
    BL2450                  2450                 53.22                      1.89              2.08
    HL2600                  2600                 39.80                      1.99              2.12
    BL2600                  2600                 52.52                      2.23              2.19
    HL5200                  5200                35.64                       4.67              2.55
    BL5200                  5200                48.64                       5.51              2.62
    HL5400                  5400                36.44                       4.87              2.53
    BL5400                  5400                46.52                       5.77              2.59
    HL5600                  5600                36.66                       5.17              2.64
    BL5600                  5600                46.79                       5.77              2.73
    HL5800                  5800                 35.31                      5.31              2.72
    BL5800                  5800                47.04                       6.10              2.81



  LOWER DETECTION LIMIT: 7mW/kg



                                                                    Page: 7/10

                   This document shall not be reprodiuced, except in full orin part, without the written approval ofMVG.
                   The information contained herein is to be used only for the purpose for which it is submitted and is not to
                   be released in whote or part without written approval ofMYG.


NTEKJILiW)*=«                         s
                                      zm           Accreoiteo
                                                 Certificate #4298.01     ~                                              ‘




                         COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref ACR.260.1.18.SATUA




          5.4   ISOTROPY
   HL900 MHz
   — Axial isotropy:                             0.04 dB
   — Hemispherical isotropy:                     0.07 dB


                                                 Isotropy curves
                                     107

                                     ot                                          Dpol o

                                     0e                                          Mc is
                                     02

                                     30

                                     o
                                     01

                                     06

                                     os
                                     io as as es oz ap o2 oa s os 15



   HL1800 MHz
   — Axial isotropy:                             0.06 dB
   — Hemispherical isotropy:                     0.08 dB


                                                 Isolropy curves
                                     107

                                     ot                                          Dpole mo

                                     0e                                          Mocis
                                     o
                                     so
                                     o2
                                     o«
                                     oc
                                     os
                                     104                              .
                                       —1o as s o« cz c0 o2 oo as se 18




                                                                   Page: 8/10

                 This document shall not be reproduced, except in full orin part, without the written approval ofMVG.
                 The information contained herein is to be used ontyfor the purposefor which it is submitted and is not to
                 be released in whole or part without written approval ofMPG.


NTEKIE:W                                           Accreoiteo)
                                                 Certificate #4298.01    ~                                                ‘




  mvG                    COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                     Ref: ACR.260.1.18.SATUA



  HLS5600 MHz
  — Axial isotropy:                              0.06 dB
  — Hemispherical isotropy:                      0.08 dB


                                                 Isotropy cuves
                                    105

                                    o8                                            Dpol m‘

                                    a
                                    ge
                                                                                  oress
                                                                                  Dpole 80‘
                                    o
                                    oo
                                    o2
                                    o«
                                    0s
                                    os
                                    10
                                      <lo —cs as o« o2 co o2 os as os 10




                                                                  Page: 9/10

                This document shall not be reprodiuced, except in full orin part, without the written approval ofMVG.
                The information contained herein is to be used only for the purpose for which it is submitted and is not to
                be released in whote or part without written approval ofMYG.


NTEKJILiW)*=«                                           Accreviteo
                                                     Certificate #4298.01




   mva                        COMOSAR E—FIELD PROBE CALIBRATION REPORT                                                    Ref: ACR.260.1.18.SATUA




          6    LIST OF EQUIPMENT



                                                    Equipment Summary Sheet

       Equipment                Manufacturer / Identification No        Current                                             Next Calibration
       Description                  Model                        ‘| Calibration Date                                              Date
                                                                                           alidated. No cal               Validated.     No    cal
       Flat Phantom                      MVG                   SN—20/09—SAM71             required.                       required .

                                          .                                                alidated. No cal               Validated.     No    cal
  |COMOSAR Test Bench                 Version 3                             NA            required.                       required .

     Network Analyzer           RN°C® g‘VSAChwarz                   sN100132                        02/2016                       0272019
     Reference Probe                     MVG                    EP 94 SN 37/08                      10/2017                       10/2018

        Multimeter                  Keithley 2000                     1188656                       01/2017                       01/2020

     Signal Generator             Agilent E4438C                  MY49070581                        01/2017                       01/2020
              ie                                                                           Characterized prior to|Characterized prior to
         Amplifier                  Aethercomm                         Sn 046              test. No cal required. |test. No cal required.

       Power Meter                   HP E4418A                    US38261498                        01/2017                       01/2020

      Power Sensor                 HP ECP—E26A                     US37181460                       01/2017                       01/2020

    Directional Coupler           Narda 4216—20                         o1386              Characterized prior to |Characterized prior to
                                                                                           test. No cal required. test. No cal required.
                                                                                            alidated. No cal              Validated. No cal
        Waveguide                 Mega Industries             O69Y7—158—13—712
                                                                                          required.                       required.

   Waveguide Transition           Mega Industries             osgy7—158—13.701 required.
                                                                                Validated. No cal                         Validated.
                                                                                                                          required.
                                                                                                                                     No cal
  \Waveguide Termination|          Mega Industries            osav7—158—13—701 required.
                                                                                |Validated. No cal                        Validated.
                                                                                                                          required. No cal
  Temperature / Humidity Control Company                            150798832                       1172017                       11/2020
          Sensor




                                                                    Page: 10/10

                     This document shall not be reprodiuced, except in full orin part, without the written approval ofMVG.
                     The information contained herein is to be used only for the purposefor which it is submitted and is not to
                     be released in whote orpart without written approval ofMYG.


NTEKIE:I6                    [accreoiteo)
                           Certificate #4258.01     ~




       COMOSAR E—Field Probe Calibration Report




                                                        Ref : ACR.139.3.18.SATU.A




     Shenzhen NTEK Testing Technology Co., Ltd.
           BUILDING E, FENDA SCIENCE PARK,
         SANWEI COMMUNITY, XIXIANG STREET,
    BAO‘AN DISTRICT, SHENZHEN, GUANGDONG, CHINA
    MVG COMOSAR DOSIMETRIC E—FIELD PROBE
             SERIAL NO.: SN 07/15 EP247

                                Calibrated at MVG US
                    2105 Barrett Park Dr. — Kennesaw, GA 30144
                                 im
                                 R ++
                             s\
                            ies &t
                             Z7 —n>
                              f,,//,:.;\\‘:\\?
                                *
                                                        [accrepitep)
                                  /l:h iluls®            caftrtioncert szzesor

                          Calibration Date: 04/06/2018

       Summary:

       This document presents the method and results from an accredited COMOSAR Dosimetric E—Field
       Probe calibration performed in MVG USA using the CALISAR / CALIBAIR test bench, for use
       with a COMOSAR system only.                All calibration results are traceable to national metrology
       institutions.



Document Created: 2018-11-22 17:58:48
Document Modified: 2018-11-22 17:58:48

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