SAR Report EX3DV4 1

FCC ID: NM8BG

RF Exposure Info

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FCCID_579028

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

 Accredited by the SwisFederal Office of Metrology and Accreditation                            Accreditation No.: SCS 108
 The Swiss Accreditation Service is one of the signatories to the EA
 Multiateral Agreementfor the recognition of callbration certificates


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 CALIBRATION CERTIFICATE                                                                                                                            I
 Object


 Calioration procedure(s)              QA CAL—O1.v5
                                       Calibration procedure for dosimetric E—field probes




 Callbration date:


 Condition of the calibrated item      In Tolerance_


 This callbration certficate documents the traceabilty to national standards, which realize the physical units of measurements (61).
 The measurements and the uncertainties with confidence probabilty are given on the following pages and are part of the certficate.

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


 Calibration Equipment used (M&TE critical for calibration)
 Primary Standards                      iD#                       Cal Date (Calibrated by. Cortificate No.)           Scheduled Calibration
 Power meter E44195                     cestzssere                5—May—04 (METAS, No. 251—00388)                     May—05
 Power sensor E4412A                    mvaraoser?                5—May—04 (METAS, No. 251—00388)                     May.05
 Reference 3 dB Attenuator              sn: ssose (3o)            10—Aug—04 (METAS, No. 251—00403)                    Aug—05
 Reference 20 4B Attenuator             sh: ssose (20b)           3—May—04 (METAS, No. 251—00389)                     May.05                        |
 Reference 30 6B Attenuator             snsez cob)                10—Aug—04 (METAS, No. 251—00404)                    Aug—os                        |
 Reference Probe ES3DV2                 snr sore                  8—an—04 (SPEAG, No. ES3—3013_Jandd)                 Jan—s
 oaee                                   sN:eir                    26—May—04 (GPEAG, No. DAE4—617_MayO4)               May.05                        |
 Secondary Standards                    n#                        Check Date (in house)                               Scheduled Check
 Power sensor HP 8481A                  mvarosz180                18—Sep—02 (SPEAG, in house check Oc—08)             In house check: Oct 05
 RF generator HP 8648C                  US3642U01700              4—Aug—99 (GPEAG, in house check Dec—03)             in house checkDec—05
 Network Analyzer HP 8753E              ussrsooses                18—00t01 (SPEAG, in house check Now—08)             In house checkc Nov 04
                                       Name                         _ Function                                        Signature
 Caliorated by:                        Nico Vetten                     Laboratory Technican                            f

 Approved by:                          Katia Pokovic                           Technical Manager


                                                                                                                      Issued: December 7, 2004
 This calibration certficate shall not be reproduced excopt in full without written approval of the laboratory.

Certiicate No: EX3—3554_NovO4                                        Page 1 of 10


Calibration Laboratory of                                                           Schweizerischer Kallbrierdienst
Schmid & Partner                                                                    Service suisse d‘étalonnage
  Engineering AG                                                                    Servizio svizzero di taratura
Zoughausstrasse 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 cortificates

Glossary:
TSL                          tissue simulating liquid
NORMx,y,z                    sensitivity in free space
ConF                         sensitivity in TSL / NORMx.y,z
DCP                          diode compression point
Polarization o               @ rotation around probe axis
Polarization $               8 rotation around an axis that is in the plane normal to probe axis (at
                             measurement center), i.e., 9 = 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 measurementof 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 3 = 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 responseis included in the stated uncertainty of ConvF.
         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 ConvF. A
         frequency dependent Convis used in DASY 4.3 B17 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—3554_NovO4                                  Page 2 of 10


    EX3DV4 SN:3554                                                                November 19, 2004




                        Probe EX3DV4
                                            SN:3554
                                 Manufactured:                   July 13, 2004
                                 Calibrated:                     November 19, 2004



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




Certificate No: EX3—3554_NovO4                  Page 3 of 10


    EX3DV4 SN:3554                                                                                    November 19, 2004


    DASY — Parameters of Probe: EX3DV4 SN:3554

    Sensitivity in Free Space®                                                               Diode Compression®
               NormX                     0.39 +9.9%                uV/(V/im)                DCP x            92 mV
               Norm¥                     0.41 £9.9%                uV/(Vim)                 DCP Y            92 mV
               NormZ                     0.42 + 9.9%               uV/(Vim)                 DCP Z            92 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                                     2.0 mm    3.0 mm
              SARs. (%)             Without Correction Algorithm                                3.7    1.1
              SARse [%]             With Correction Algorithm                                   0.2    0.4


    TSL                     1750 MHz            Typical SAR gradient: 10 % per mm


              Sensor Center to Phantom Surface Distance                                     2.0 mm 3.0 mm
              SARs, %]              Without Correction Algorithm                                4.8    24
              SARs. [%]            With Correction Algorithm                                    0.8    0.8


    Sensor Offset

              Probe Tip to Sensor Center                                               1.0 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—feld uncertainty inside TSL (see Page 8).
   * Numerical inearization parameter: uncertainty not required.




Certficate No: EX3—3554_NovO4                               Page 4 of 10


    EX3DV4 SN:3554                                                                    November 19, 2004



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




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




Certificate No: EX3—3554_NovO4                     Page 5 of 10



Document Created: 2005-08-16 09:53:51
Document Modified: 2005-08-16 09:53:51

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