SAR Appendix C

FCC ID: OVFKWC-KX7

RF Exposure Info

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FCCID_566630

                                                              FCC ID: OVFKWC-KX7




                                       Appendix C:

                               Probe Calibration Parameters




Probe Calibration Parameters                                           Model: KX7


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 Federal Office of Metrology and Accreditation                           Accreditation No.: SCS 108
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:


 Condition of the calibrated item



 This calibration certificate documents the traceability to national standards, which realize the physicat 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 (Calibrated by, Certificate No.)             Scheduled Calibration
 Power meter E4419B                     GB41293874                3—May—05 (METAS, No. 251—00466)                       May—06
 Power sensor E4412A                    MY41495277                3—May—05 (METAS, No. 251—00466)                       May—06
 Power sensor E4412A                    MY41498087                3—May—05 (METAS, No. 251—00466)                       May—06
 Reference 3 dB Attenuator              SN: $5054 (3c)            10—Aug—04 (METAS, No. 251—00403)                      Aug—05
 Reference 20 dB Attenuator             SN: S5086 (20b)           3—May—05 (METAS, No. 251—00467)                       May—06
 Reference 30 dB Attenuator             SN: S5129 (30b)           10—Aug—04 (METAS, No. 251—00404)                      Aug—05
 Reference Probe ES3DV2                 SN: 3013                  7—Jan—05 (SPEAG, No. ES3—3013_JanO5)                  Jan—06
 DAE4                                   SN: 617                   19—Jan—05 (SPEAG, No. DAE4—617_Jan05)                 Jan—06


 Secondary Standards                    ID #                      Check Date (in house)                                 Scheduled Check
 RF generator HP 8648C                  US3642U01700              4—Aug—99 (SPEAG, in house check Dec—03)               in house check: Dec—05
 Network Analyzer HP 8753E              US37390585                18—Oct—01 (SPEAG, in house check Nov—04)              In house check: Nov 05


                                        Name                                   Function                                 Signature
 Calibrated by:



 Approved by:



                                                                                                                        Issued: May 19, 2005
 This calibration certificate shall not be reproduced except in full without written approval of the laboratory.


Certificate No: ET3—1713_MayOS5                                       Page 1 of 9


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 Federal Office of Metrology and Accreditation            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
ConF                         sensitivity in TSL / NORMx,y,z
DCP                          diode compression point
Polarization q               q rotation around probe axis
Polarization 8               8 rotation around an axis that is in the plane normal to probe axis (at
                             measurement center), i.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)   CENELEC EN 50361, "Basic standard for the measurement of Specific Absorption Rate
         related to human exposure to electromagnetic fields from mobile phones (300 MHz — 3
         GHz), July 2001

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 effect the E*—field uncertainty inside TSL (see below ConvF).
         NORM(Ax,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 Convr.
         DCPx,y,z: DCP are numerical linearization parameters assessed based on the data of
         power sweep (no uncertainty required). DCP does not depend on frequency nor media.
         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 ConvFr. 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: ET3—1713_MayOS                                   Page 2 of 9


    ET3DV6 SN:1713                                                                 May 19, 2005




                       Probe ET3DV6
                                            SNA1713 —
                                  Manufactured:                   August 7, 2002
                                  Last calibrated:                July 16, 2004
                                  Recalibrated:                   May 19, 2005

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




Certificate No: ET3—1713_MayOS5                   Page 3 of 9


   ET3DV6 SN:1713                                                                                               May 19, 2005


    DASY — Parameters of Probe: ET3DVG6 SN:1713


   Sensitivity in Free SpaceA                                                                 Diode CompressionB

              NormX                      1.59 £101%                 uV/(V/im)                DCP X            99 mV
              NormY .                    1.74 £101%                 uV/(V/im)                DCP Y            99 mV
              NormZ                      1.66 £101%                 uV/(V/im)                DCP Z            99 mV


   Sensitivity in Tissue Simulating Liquid (Conversion Factors)
   Please see Page 8.



    Boundary Effect

   TSL                        900 MHz           Typical SAR gradient: 5 % per mm


              Sensor Center to Phantom Surface Distance                                      3.7 mm    4.7 mm
              SARp, [%]             Without Correction Algorithm                                8.6     4.8
              SARp, (%]             With Correction Algorithm                                   0.7     0.1


   TSL                      1810 MHz            Typical SAR gradient: 10 % per mm


              Sensor Center to Phantom Surface Distance                                      3.7 mm    4.7 mm
              SARBpq (%]            Without Correction Algorithm                                13.0    8.9
              SARpe [%]             With Correction Algorithm                                   0.7     0.1



    Sensor Offset

              Probe Tip to Sensor Center                                                2.7 mm




    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 Page 8).
   ® Numerical linearization parameter: uncertainty not required.




Certificate No: ET3—1713_MayOS                                Page 4 of 9


    ET3DVG6 SN:1713                                                                                                May 19, 2005



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




                                                 0        500       1000       1500      2000       2500    3000
                                                                           f [MHz]
                                                     [          —@—TEM                —0—R22    |


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




Certificate No: ET3—1713_MayOS5                                            Page 5 of 9


   ET3DV6 SN:1713                                                                           May 19, 2005




                                   Receiving Pattern (¢6), 8 = 0°

            f= 600 MHz, TEM if1{10EXX                                 f= 1800 MHz, WG R22




          —@—X      —@—Y      —®—Z      —O—Tot                    —@—X   —@—Y    —@&—Z      —O—Tot




         1.0
         0.8
         0.6                                                                               —5—30 MHz
     m 04                                                                                  —B— 100 MHz
     o 0.2                                                                                 —0—600 MHz
     5 _g'g                                                                                —@— 1800 MHz
     1(94                                                                                  —A&—2500 MHz
        —0.6
        —0.8
        —1.0
               o         so           120         180           240      300         360
                                                  6 °1



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




Certificate No: ET3—1713_MayOS                    Page 6 of 9


    ET3DV6 SN:1713                                                                                             May 18, 2005



                                                          ynamic Range f(SARp;4)
                                                           (Waveguide R22, f= 1800 MHz)



                                   1.E+7



                                   1.E+6



                                   1.E+5
              Input Signal (mV]




                                   1.E+4


                                   1.E+3



                                   1.E+2



                                  1.E+1


                                   1.E+0
                                       0.0001     0.001      0.01      ._ 04            1       10     100
                                                                    SAR [mW/cm*]

                                                ——&—not compensated                —®— compensated



                                  1.0

                                  0.6
                Error [dB]




                                  0.2




                                  —1.0
                                     0.001         0.01             0.1             1           10           100
                                                                    SAR [mW/em*"]


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




Certificate No: ET3—1713_MayOS                                       Page 7 of 9


   ET3DVG SN:1713                                                                                                              May 19, 2005



                                             Conversion Factor Assessment

                f= 900 MHz, WGLS RQ (head)                                                    f= 1810 MHz, WGLS R22 (head)
              35 ;                ;                                                         30.0

              3.0 %            —                                                            25.0 G

         s 25 Fél                                                                  E 20.0 |&
         C                                                                         &~
         § 29
         $               |1—                                                       5
                                                                                   §          y
         =
         .E. 1.5
                               *   \<
                                                                                   = 15.0 41—
                                                                                   ..E...                 EL
         tC                                                                        [+4
         & 10                            h                                         & 10.0                 ‘QQ%

               0.5                               e                                           5.0

               0.0                                              e                            0.0                               %
                     0                  20            40             6o                            o             20            40          60
                                              z[mm]                                                                   z2[mm]

              f —O— Analytical               —O0— Measurements ’                            [ —@— Analytical          —O— Measurements !




   f [MHz] Validity [MHz]®                     TSL    Permittivity        Conductivity          Alpha     Depth         ConvF Uncertainty
   900          + 50 / £ 100                   Head   41.5%5%             0.97+5%                  0.90        1.57       6.29 £11.0% (k=2)
   1810         £50/£100                       Head   40.0£5%             1.40%£5%                 0.52        2.52       5.18 £11.0% (k=2)




   900          *# 50 / £ 100                  Body   55.0*5%             1.05 £5%                 0.92        1.62       5.98 £+11.0% (k=2)
    1810        *50/£100                       Body   53.3%5%             1.52£5%                  0.51        2.90       4.62 £11.0% (k=2)




   © The validity of £ 100 MHz only applies for DASY v4.4 and higher (see Page 2). The uncertainty is the RSS
   of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band.




Certificate No: ET3—1713_MayOS5                                      Page 8 of 9


    ET3DV6 SN:1713                                                                                             May 19, 2005


                                  eviation from Isotropy in HSL
                                               Error (6, 8), f = 900 MHz




                                                                                                  Error [dB]




                             —1.00—0.80 ©—0.80—0.60    ©—0.60——0.40   ©—0.40—0.20   ©—0.20—0.00
                           ©0.00—0.20   ©0.20—0.40    ©0.40—0.60      0.60—0.80     0.80—1.00




                             Uncertainty of Spherical Isotropy Assessment: £ 2.6% (k=2)




Certificate No: ET3—1713_MayOS                        Page 9 of 9



Document Created: 2005-07-13 14:19:56
Document Modified: 2005-07-13 14:19:56

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