SAR Calibration Certificate - Probe 3751

FCC ID: A4R-X1

RF Exposure Info

Download: PDF
FCCID_1939264

Calibration Laboratory of                                                                                          Schweizerischer Kalibrierdienst
Schmid & Partner                                                                                                   Service suisse d‘étalonnage
  Engineering AG                                                                                                   Servizio svizzero di taratura
Zeughausstrasse 43, 8004 Zurich, Switzerland                                                                       Swiss Calibration Service


Accredited by the Swiss Accreditation Service (SAS)
The Swiss Accreditation Service is one of the signatories to the EA
Multilateral Agreement for the recognition of calibration certificates

Client




Object



Calibration procedure(s)




Calibration date:


This calibration certificate documents the traceability to national standards, which realize the physical units of measurements (St).
The measurements and the uncertainties with confidence probability are given on the following pages and are part of the certificate.


All calibrations have been conducted in the closed laboratory facility: environment temperature (22 + 3)°C and humidity < 70%.


Calibration Equipment used (M&TE critical for calibration)



 Primary Standards                    ID                                Cal Date (Certificate No.)                    Scheduled Calibration
 Power meter E44198                   GB41293874                        29—Mar—12 (No. 217—01508)                     Apr—13
 Power sensor E4412A                  MY41498087                        29—Mar—12 (No. 217—01508)                     Apr—13
 Reference 3 dB Attenuator            SN: $5054 (3¢)                    27—Mar—12 (No. 217—01531)                     Apr—13
 Reference 20 dB Attenuator           SN: S5086 (20b)                   27—Mar—12 (No. 217—01529)                     Apr—13
 Reference 30 dB Attenuator           SN: $5129 (30b)                    27—Mar—12 (No. 217—01532)                    Apr—13
 Reference Probe ES3DV2               SN: 3013                           29—Dec—11 (No. ES3—3013_Dec11)               Dec—12
 DAE4                                 SN: 660                            20—Jun—12 (No. DAE4—660_Jun12)               Jun—13


 Secondary Standards                  ID                                 Check Date (in house)                        Scheduled Check
 RF generator HP 8648C                US3642U01700                       4—Aug—99 (in house check Apr—11)             in house check: Apr—13
 Network Analyzer HP 8753E            US37390585                         18—Oct—01 (in house check Oct—12)            In house check: Oct—13

                                                                                Function
 Calibrated by:



Approved by:




                                                                                                                        Issued: November 15, 2012
 This calibration certificate shall not be reproduced except in full without written approval of the laboratory.




Certificate No: EX3—3751_Nov12                                         Page 1 of 11


Calibration Laboratory of                                             Py                       Schweizerischer Kalibrierdienst




                                                                                   &
                                                                        ~zZ/




                                                                                        8
                                                             7
Schmid & Partner




                                                            Vp
                                                                      mnmnw<Z




                                                                                  eolh o
                                                                                               Service suisse d‘étalonnage
  Engineering AG                                                      mm                       Servizio svizzero di taratura




                                                             \‘\“ t
Zeughausstrasse 43, 8004 Zurich, Switzerland                      24      7X       uS          Swiss Calibration Service
                                                                      ’,/’llnl n\“\\\




Accredited by the Swiss Accreditation Service (SAS)                                         Accreditation No.: SCS 108
The Swiss Accreditation Service is one of the signatories to the EA
Multilateral Agreement for the recognition of calibration certificates

Glossary:
TSL                          tissue simulating liquid
NORMx,y,z                    sensitivity in free space
ConvF                        sensitivity in TSL / NORMx,y,z
DCP                          diode compression point
CF                           crest factor (1/duty_cycle) of the RF signal
A, B, C                      modulation dependent linearization parameters
Polarization &               & rotation around probe axis
Polarization 8               8 rotation around an axis that is in the plane normal to probe axis (at measurement center),
                             e., 8 = 0 is normal to probe axis

Calibration is Performed According to the Following Standards:
    a)   IEEE Std 1528—2003, "IEEE Recommended Practice for Determining the Peak Spatial—Averaged Specific
         Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement
         Techniques", December 2003
    b) IEC 62209—1, "Procedure to measure the Specific Absorption Rate (SAR) for hand—held devices used in close
         proximity to the ear (frequency range of 300 MHz to 3 GHz)", February 2005

Methods Applied and Interpretation of Parameters:
         NORMx,y,z: Assessed for E—field polarization 8 = 0 (f < 900 MHz in TEM—cell; f > 1800 MHz: R22 waveguide).
         NORMx,y,z are only intermediate values, i.e., the uncertainties of NORMx,y,z does not affect the E*—field
         uncertainty inside TSL (see below ConvF).
         NORM(Px,y,z = NORMx,y,z * frequency_response (see Frequency Response Chart). This linearization is
         implemented in DASY4 software versions later than 4.2. The uncertainty of the frequency response is included
         in the stated uncertainty of ConvF.
         DCPx,y,z: DCP are numerical linearization parameters assessed based on the data of power sweep with CW
         signal (no uncertainty required). DCP does not depend on frequency nor media.
         PAR: PAR is the Peak to Average Ratio that is not calibrated but determined based on the signal
         characteristics
         Ax,y,z; Bx.y,z; Cx,y,z, VRXx,y,z: A, B, C are numerical linearization parameters assessed based on the data of
         power sweep for specific modulation signal. The parameters do not depend on frequency nor media. VR is the
         maximum calibration range expressed in RMS voltage across the diode.
         ConvF and Boundary Effect Parameters: Assessed in flat phantom using E—field (or Temperature Transfer
         Standard for f < 800 MHz) and inside waveguide using analytical field distributions based on power
         measurements for f > 800 MHz. The same setups are used for assessment of the parameters applied for
         boundary compensation (alpha, depth) of which typical uncertainty values are given. These parameters are
         used in DASY4 software to improve probe accuracy close to the boundary. The sensitivity in TSL corresponds
         to NORMx,y,z * ConvF whereby the uncertainty corresponds to that given for ConvF. A frequency dependent
         ConvF is used in DASY version 4.4 and higher which allows extending the validity from + 50 MHz to + 100
         MHz.
         Spherical isotropy (3D deviation from isotropy): in a field of low gradients realized using a flat phantom
         exposed by a patch antenna.
         Sensor Offset: The sensor offset corresponds to the offset of virtual measurement center from the probe tip
         (on probe axis). No tolerance required.




Certificate No: EX3—3751_Nov12                                          Page 2 of 11


EX3DV4 — SN:3751                                                                November 15, 2012




                      Probe EX3DV4

                                         SN:3751

                                  Manufactured:            March 26, 2010
                                  Calibrated:              November 15, 2012




                                 Calibrated for DASY/EASY Systems
                                    (Note: non—compatible with DASY2 system!)




Certificate No: EX3—3751_Nov12                    Page 3 of 11


EX3DV4— SN:3751                                                                                                          November 15, 2012




DASY/EASY — Parameters of Probe: EX3DV4 — SN:3751

Basic Calibration Parameters
                                                Sensor X                         Sensor Y                    Sensor Z             Unc (k=2)
 Norm (pV/(V/m)")*                                 0.51                            0.53                        0.52               +101 %
 DCP (mV)B                                         99.3                           101.4                        99.9




Modulation Calibration Parameters
 UID     Communication System Name                               PAR                  A            B           C          VR          Unc®
                                                                                     dB           dB           dB         mV          (k=2)
 0             CW                                                0.00       xX       0.0          0.0          1.0       12111       £1.9 %
                                                                            Y        0.0          0.0          1.0       124.4
                                                                            Z        0.0          0.0          1.0       119.1



 The reported uncertainty of measurement is stated as the standard uncertainty of measurement
 multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage
 probability of approximately 95%.


* The uncertainties of NormX,Y,Z do not affect the E®—field uncertainty inside TSL (see Pages 5 and 6).
® Numerical linearization parameter: uncertainty not required.
© Uncertainty is determined using the max. deviation from linear response applying rectangular distribution and is expressed for the square of the
field value.




Certificate No: EX3—3751_Nov12                                      Page 4 of 11


EX3DV4— SN:3751                                                                                                         November 15, 2012




DASY/EASY — Parameters of Probe: EX3DV4 — SN:3751


Calibration Parameter Determined in Head Tissue Simulating Media
                        Relative         Conductivity                                                                Depth           Unct.
     f (MHz)°        Permittivity®           ($/m)"          ConvFX        ConvF Y        ConvFZ         Aipha        ({mm)          (k=2)
        750               41.9                0.89             8.95          8.95           8.95          0.:50       0.79         #42:0%
        835               41.5                0.90             8.60          8.60           8.60          0.50        0.75         +12.0 %
        900               41.5                0.97             8.51          8.51           8.51          0.56        0.68         +12.0 %
        1750              40.1                1.37             7.51          7.51           7.51          0.36        0.88         +12.0 %
        1900              40.0                1.40             718            718           718           0.80        0.58         +12.0 %
        1950              40.0                1.40             6.95          6.95           6.95          0.46        0.75         £12.0 %
       2000               40.0                1.40             715            7.A5          715           0.35        0.86         +12.0 %
       2450               39.2                1.80             6.47           6.47          6.47          0.28        0.99         +12.0 %
       4950               36.3                4.40             5.08           5.08          5.08          0.37         1.80        £13.1 %
       5200               36.0                4.66             4.79           4.179         4.179         0.35         1.80        #13.1 %
       5300               35.9                4.76             4.60           4.60          4.60          0.36         1.80        #13.1%
       5500               35.6                4.96             4.A7           4.A7          4.47          0.37         1.80        #13.1 %
       5600               35.5                5.07             417            4.17          4.17          0.43         1.80        #13.1 %
       5800               35.3                5.27             4.20           4.20          4.20          0.44         1.80        #13.1 %


© Frequency validity of + 100 MHz only applies for DASY v4.4 and higher (see Page 2), else it is restricted to + 50 MHz. The uncertainty is the RSS
of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band.
" At frequencies below 3 GHz, the validity of tissue parameters (s and 0) can be relaxed to + 10% if liquid compensation formula is applied to
measured SAR values. At frequencies above 3 GHz, the validity of tissue parameters (s and 0) is restricted to + 5%. The uncertainty is the RSS of
the ConvF uncertainty for indicated target tissue parameters.




Certificate No: EX3—3751_Nov12                                     Page 5 of 11


EX3DV4— SN:3751                                                                                                          November 15, 2012




DASY/EASY — Parameters of Probe: EX3DV4 — SN:3751


Calibration Parameter Determined in Body Tissue Simulating Media
                        Relative         Conductivity                                                                 Depth          Unct.
     f (MHz)°        Permittivity"           (S/m)"          ConvFX        ConvF Y        ConvFZ         Aipha        _(mm)          (k=2)
        750               55.5                0.96             8.74           8.74          8.74          0.48        0.81         £142:0%

        835               55.2                0.97             8.58           8.58          8.58          0.38        0.93         #12.0 %

        900               55.0                1.05             8.52           8.52          8.52          0.40        0.90         * 12.0 %

        1750              53.4                1.49             7.38           7.38          7.38          0.46        0.81         £12.0 %

        1900              53.3                1.52             6.95           6.95          6.95          0.30         1.01        +12.0 %

        1950              53.3                1.52             716            7.16          716           0.34         0.89        + 12.0 %

       2000               53.3                1.52             7.10           7.10          7.10          0.47         0.74        £12.0 %

        2450              52.7                1.95             6.61           6.61          6.61          0.80         0.50        £12.0 %

       4950               49.4                5.01             4.32           4.32          4.32          0.40         1.90        #13.1 %

        5200              49.0                5.30             4.26           4.26          4.26          0.40         1.90        £13.1 %

        5300              48.9                5.42             4.00           4.00          4.00          0.45         1.90        £13.1 %

        5500              48.6                5.65             3.69           3.69          3.69          0.48         1.90        #13.1 %

        5600              48.5                5.77              3.63          3.63           3.63         0.43         1.90        £13.1 %

        5800              48.2                6.00              3.88          3.88           3.88         0.48         1.90        £13.1 %


© Frequency validity of + 100 MHz only applies for DASY v4.4 and higher (see Page 2), else it is restricted to + 50 MHz. The uncertainty is the RSS
of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band.
" At frequencies below 3 GHz, the validity of tissue parameters (s and 0) can be relaxed to + 10% if liquid compensation formula is applied to
measured SAR values. At frequencies above 3 GHz, the validity of tissue parameters (s and 0) is restricted to + 5%. The uncertainty is the RSS of
the ConvF uncertainty for indicated target tissue parameters.




Certificate No: EX3—3751_Nov12                                     Page 6 of 11


EX3DV4— SN:3751                                                                                                                                                November 15, 2012


                                         Frequency Response of E—Field
                                                   (TEM—Cell:ifi110 EXX, Waveguide: R22)




                      T TTT




                       Eo                                                                                                                                                          fls
          & TBA nsnssnsannnnndp en nnennnennnnnnn nrnchone n n snononnennnnnnndeenvnnnonnnnenennnnanchnennnnnnonnnnennnnen n ennnnnnnennnnnonnnnnnndennn e

          §    —       |        [                                                                                        i
          T 1,B—fresmmenpememee.ons renennnnnmmmmnmrneofernnnnnnonsnmnmnnnrnnnfannnenennnnncnmnnnnndrnmnnnnnnnnnnnnnnnnnfeen oo
           50          ft       |
                                                                      f                       §                                              f                       f
          5     111 clet mmrmmnpfeternrn n puoonnnnonnennnnnnerenncfrnnnnnomnenesenenneneedencussenennnnneeennnenefenel.
                                           premrrr en enb en dn
           g           E®—__                                          |                       §
           § 1.0—L—zzPm@mmmmmmmommmmmmmmeni.                                                                                 —                       nnrrenee
           a.
           U
                       C[—                                            ||                      |I                                                     Ti
           9    Og [~                                                 i                       é                                              i                       |

           8
           5
                       [—                     fi                      i                       i                                              |                       |
           M J enc ecfeeeemane enc ea iesfrnervennanassscsnaee es freneeneenmemmmanee..provenvernsensennneamendonnmnnneennnnenssceene. feee
           &           /m                                             |                       i                                                  |                       i
          E             C
                {J, 7 —|Lecserernnreenennnachrennnnnnnnnennnnnnnnmecfennnnnnnrnnnsnenennnvand en nenn rnennvennnennvnvhenenenennnnnennnenvnbadennncannnnnennnnennncen dn n e

                O,.G—].ponrersnemmmmnmenenne..boonmnmmnmmmmmmernmneadencoo

                0.5           L           p    5b       uU




                                       Uncertainty of Frequency Response of E—field: £ 6.3% (k=2)




Certificate No: EX3—3751_Nov12                                                      Page 7 of 11


EX3DV4— SN:3751                                                                                                                                                                    November 15, 2012




                                                             Receiving Pattern (¢), 9 = 0°

                                f=600 MHz,TEM                                                                                              £=1800 MHz,R22




                                                                                                                                            _                          L*
                                               Prveecteprcs t                                                                                   TNndontontassedT
      |                                                270                                             |                                                5
               Ed                      &|                           _#|                   6|                           28                       &                     _@|                     & :
               Tot                         X                            Y                 Z                            Tot                      X                     Y¥                          Z




              05[enormnnnefmcdnponernmnmnmmmmes.eponrmmmmmmmies...Inrenmpemmiimess.e
      o           [              i                            i                       |                        i                       ;                     i                           ;
      2.          [—             i                            |                       |                        }                       ;                                                 }
          §   0.0“_“                                                                  f                        ?

      800p                       .                            s                       !                        %                       f                     s                           a
              cBenrmmnnnmmmmmnnmmnndenmmmmmmmecesho.dnBnnnrmnmmmmmmremnetfsmnnmmnsmmsmmicese
                  .    1   1     .i    l       1   1     1    i     1       1   1     i   1    1   M       1   i   1   1     T     1   i    I   1   1   1    i    |        M   1    |    E    1       1

                               —150                          —100                   50                        0                     50                      100                         150
                                                                                                           Roll ["]                c
                                       [€]                                                                                         §
                                      100 MHz                                       600 MHz                                      1800 MHz                                  2500 MHz


                                                       Uncertainty of Axial Isotropy Assessment: £ 0.5% (k=2)




Certificate No: EX3—3751_Nov12                                                                 Page 8 of 11


EX3DV4— SN:3751                                                                                                           November 15, 2012




                                                          Dynamic Range f(SARneaq)
                                                                    (TEM cell , f= 900 MHz)

                  Input Signal [uV]




                                                             102        10          10°          10           102
                                                                               SAR [mW/icm3]

                                                            not compensated                       compensated
                                      Error [dB]




                                                   103        102       101          108        101      102        108
                                                                               SAR {[mW/icm3]

                                                             not compensated                    compensated


                                                         Uncertainty of Linearity Assessment: £ 0.6% (k=2)




Certificate No: EX3—3751_Nov12                                                 Page 9 of 11


 EX3DV4— SN:3751                                                                                                                                                                                    November 15, 2012


                                                             Conversion Factor Assessment
                            f= 835 MHz,WGLS R9 (H_convF)                                                                                  f= 1900 MHz.WGLS R22 (H_convF)
          404

          257                                                                                                                                                       |

          30 —:%%                     es                          onl                                   mss                     25 —3
                  ,2‘                                                                                                                                        ~                     ~~         O              ~


          as|
           $7.      >\                                                                                                          20—


       3. 201                     C                                                                                        2          [
       x     —                    ~                                                                                        e    16—
       B     r                                                                                                             &#         [
          1.67—                                                                                                                                        jw.
              [                                                                                                                 104        :                 hk
          ‘LO*;                                                                                                                       —                             "‘\\A\


         as?                  —                                                                                                  s|                                           C mss
         007            1     —        :               —      :      ;       :      —      i       —     1                      cAlj‘il.:l‘tlr;lifiti‘il‘-                                     I?|[10fj»l‘]vw‘:‘—

                             10                        20           30             40              5o           so                6        5           10               15         20    25          20      35   40
                                                                  2 [mirn}                                                                                                    z [mm]
                                      C#                                                  wea                                                      B                                                [#]
                                  anabytical                                            measured                                                 analytical                                       measured



                                                            Deviation from Isotropy in Liquid
                                                                                           Error (6, 8), f = 900 MHz
                                           Deviation




                                                 —1.0             —0.8           —0.6      —0.4         —0.20        000         020       0.4               O.60            080        1.0
                                                            Uncertainty of Spherical Isotropy Assessment: £ 2.6% (k=2)




Certificate No: EX3—3751_Nov12                                                                               Page 10 of 11


EX3DV4— SN:3751                                              November 15, 2012




DASY/EASY — Parameters of Probe: EX3DV4 — SN:3751

Other Probe Parameters
 Sensor Arrangement                                                Triangular
 Connector Angle (°)                                                      9.4
 Mechanical Surface Detection Mode                                   enabled
 Optical Surface Detection Mode                                      disabled
 Probe Overall Length                                                337 mm
 Probe Body Diameter                                                  10 mm
Tip Length                                                             9 mm
 Tip Diameter                                                         2.5 mm
 Probe Tip to Sensor X Calibration Point                                1 mm
 Probe Tip to Sensor Y Calibration Point                                1 mm
 Probe Tip to Sensor Z Calibration Point                                1 mm
 Recommended Measurement Distance from Surface                         2 mm




Certificate No: EX3—3751_Nov12               Page 11 of 11



Document Created: 2019-03-29 02:10:04
Document Modified: 2019-03-29 02:10:04

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC