Test Report SAR_caldata

FCC ID: TVUW570H

RF Exposure Info

Download: PDF
FCCID_4161201

                                     Annex D
                  Appendix to Test Report No.: 1-6814/18-01-04


                                 Testing Laboratory
                 CTC advanced GmbH
                 Untertürkheimer Straße 6 – 10
                 66117 Saarbrücken/Germany
                 Phone:    + 49 681 5 98 - 0
                 Fax:      + 49 681 5 98 - 9075
                 Internet: http://www.ctcadvanced.com
                 e-mail:   mail@ctcadvanced.com

                 Accredited Test Laboratory:
                 The testing laboratory (area of testing) is accredited
                 according to DIN EN ISO/IEC 17025 (2005) by the
                 Deutsche Akkreditierungsstelle GmbH (DAkkS)
                 The accreditation is valid for the scope of testing
                 procedures as stated in the accreditation certificate with
                 the registration number: D-PL-12076-01-01

Appendix with Calibration data, Phantom certificate and system check
                             information
                              2012-01-16




                                      Page 1 of 32


                                            Test report no.: 1-6814/18-01-04



1     Table of contents

1   Table of contents .......................................................................................................................................2

2   Calibration report “Probe EX3DV4” ........................................................................................................3

3   Calibration report “1900 MHz System validation dipole” ....................................................................14

4   Calibration certificate of Data Acquisition Unit (DAE) ........................................................................24

5   Certificate of “SAM Twin Phantom V4.0/V4.0C’’ .................................................................................25

6   Application Note System Performance Check .....................................................................................26
    6.1       Purpose of system performance check .....................................................................................26
    6.2       System Performance check procedure ......................................................................................26
    6.3       Uncertainty Budget ......................................................................................................................27
    6.4       Power set-up for validation .........................................................................................................31
    6.5       Laboratory reflection ...................................................................................................................32
    6.6       Additional system checks ...........................................................................................................32




                                                                    Page 2 of 32


                      Test report no.: 1-6814/18-01-04


2   Calibration report “Probe EX3DV4”




                                   Page 3 of 32


                                    >                                         CTC I|| adv  anced
                                                                                      romiesrurivenn




Calibration Laboratory of                                             g. scmemmaectastretent
Schmid & Partner                                                      . teverninectiiomase
  Engineering AG                                                      §. intionimedueue
Aeopmnas 0 ocuce eruetied                                                swcttraton teice

pcous n Suss ecsononSave0)                                                  Aceritcntc: SCS 0108
TheSisAccssaton Srvc in on th ugrtotes o e tA
Hurtenagrecnetor h ecopatan t cattaton contcues
Glossary:
T9.                   ssuesimgatng taud
Nofatcyz              senstty ino sace
Cont                  senstviy in TSL/NORMtcysz
cce                   dode compressin post
or                    crestficer (1uy.x) ofthRF sgral
A8.6.0                moiuaton dependentIncateatonprametrs
Polizaton s           rolatoaroind prove aus
Polrizaton o          8 rtaionaroundan ass thatis in heplae nomat robe a‘ (at measrementcorte)
                      te, 8 «0s nomal o probe aus
Gomestor Angle        infomatonused in DASY ystem o algnpobesersorXtohe obotenortnate system
Callbration is Performed According to the Following Standards:
    a) 1EEE 3i 19202019, 1EEE RecommendadPracien tDotorminng ho Peak SatatAveaged Spocitc
       Asopton Rate (SARin tho Human Head fom Wemess Gommunicatons Devices Measuroment
       Techiques. Jn 2013
    81 120 622001 %.‘Measuament procedire fo ho assonsment o Speciic AbsorpionRat (BAR)rom hand:
       eldand boi—mountedevics use naxt th ear (reaency angeof 300 Mit t 8 oc Juy 2016
    e) 120622002 ‘Proceduretodeternine thSpocile Absorton Rate (SAR)fr wrless comminicatondevces
       usedin case proimty to thuman d (resuercy rane of 0 ie o6 GHe®, Mareh2010
    4) Kasssot,"SAR Measuremont Regurement o 10Mite o6 Gite
Methods Applied and Interprotation of Parameters:
       NORMbc z: AssessefoEfld polrisaton & = 0 (!= 20 it in TEM:cot (> 1800 i: R22 waveqvice)
       NORAae onl intemstate vahes, ts the incetaitis of NOR2 doesnot afec e E—fed
       ureeraintynsite TS (ae blow ComF)
       NORMe NORe ° requerey.resonsee Ereaency Ressonse Chat. Thi Ineanzaton is
       inplementa n DASY4 sofware vamios latethan 42. The uncerainy oh eguency esponseisincluted
       in e stated uncerainy f Conv
       DGPuy.x:DGP are rumercalIncarsaionpramelrsassessed ased ont ata of power suoep wth CN
       siqral(ho uncenainy reaured). DCP does not evend on tequency nor media
       rar: PMR is tha Pokto Average Rato bat is ra caltrled ut dtarmined based on he sgna
       ctarcteistcs
       Auyic Buiya. Gurca Dey.z VRaya A, 6. .0 e numeveal incatcatn praretors ausessed based on
       tnodata of poner sweepfo speat meculaton ignal The rwameters darodenendon feguency ror
       imaia VR is ho masemum calraton rangeeroresso n RMS votage across ho dode
       Com® and Bounday EfactParameters: Assessu in fa harton using E—tl(or TemporatareTranater
       Standardfo s 200 ie and insite wavegvide using analyicl fll tibatons basd on power
       measurementsfor > 800 Kz The same aetan areusedfor aosessmont of e parametrsappled for
       bounday compensaton. dept)of vrich tpicauncerainy vaues ar gven. These parimeters e
       usedin DASY setwareto improveeabe accuacy lose t the beunday, Th senstvity in TSX coresponds
       16 NORAky 2 * onwhraby ho uncerainy coresponds t ht veor Cor: A recuency dondant
        Gorveis used in DASY verson4.4 andtigherwtich alous eterdng thvaldty fem 2 50 We t:100
       wte
        Spnefeal sorapy 30 deviaton rom sobapy} n fld o ow riensreaize sing afat sranton
       exgosed y ptchantomna
        Sensor Oe Thesenso fseconessonds t h ofet f vival meassrementceter fom the prove to
       (on robe ix) No toerance reaured
        GometorAngle The angli assessa usthinfomaton gained by delerniing ho NORIts(no
        urcerainy reaured)

cuntcaeno: tsttoyis                          Pageaots


                                                           CTC I|| adv  anced
                                                                   romiesrurivenn



scov—svaoe                                                     way 0. 2000




             Probe EX3DV4

                         SN:3944

                  Manufactured:         May 2, 2013
                  Calibrated:           May 18, 2018



                 Calibrated for DASY/EASY Systems
                    (Notw: non—compattl wih DASN2 sysem)




Centeaeho0tyts                   Pagesot1


                                   >                                        CTC I|| adv  anced
                                                                                    romiee rurivenn



voov—svase                                                                            w e z000

DASY/EASY — Parameters of Probe: EX3DV4 — SN:3944
Basic Calibration Parameters
                               Ssn                 semiery            semsere     1 weten
 Nom tm‘                        oss                     esz            o«         |coi%
 5GF (m¥l                       ora                     ari            se         1

Modulation Callbration Parameters
 Wb    conmuneatengiitemtame                  oo                        m               se
                                              sn sovy|                 & m              on
 s —taw               a                    x| oo      oo 1e            on was           wour|
                                           ¥|as       se ~io              zo                  |
     I                                   | 7| ~se~["ae—| is               ns                 ]
                                                          standard uncertaity of measurement
 "The reported uncertainy of measurement is stated as thedistrbution
 multlied by the coverage factor k=2, whichfor a normal              correspands to a coverage
 probabiity of approximatoly 96%
1 e eatartct m x¥ oo retate eCt ncearynacTt ePse
(Wea renomerraonae  vevrons
(WERETYTT onl urg e nax dneP homssn aing esnarton it aonie oe naurecte
movam




Centeaho txxa0utyts                         rage utss


                                                                     CTC I|| advanced
                                                                             romiesrurivenn



excov—svson                                                                  1y ts z01e


DASY/EASY — Parameters of Probe: EX3DV4 — SN:3944

Callbration Parameter Detormined in Head Tissue Simulating Media
                         Conmaty                                   Boon         We
    ns                     (am‘      comex comy| comez mpna | mm                ton
     150                    ose       mss     toss     toss osi     os         aro%
     sso        «is         ose       mwar    toir     107 ous oss             1208
     sso        «s          oor       oss     om       osm     owr oss         ar0%
     se         «01         197       sse     esz      ss      omm os          aro%
     1200       w0          140       sso     sso      aso     oi om           ar0s
     wso        se          180       mes     zes      rss     om ors          ar0%
     2e00       sso         186       mso     zse      1so     osr oss         ar0%
                se          2s        is      rar      ror     om   is         anis
                so          ase       sse_|   se | se          on   im         amis
                sso         are       sis     sis      sis     ow   um         amis
     ssoo       ase         ass.      ass     is       as      os   im         es
     seoo       ass         sor       it      ar       am      os   im         rmi%
     seco       3ss         ser       asr     asr      asr     o|   im         rsim

©rmancy mtse wot t on sns o ASY e t on hatwon Page 21 av a ens sotcc e
onlobePW
Een e 10 abe   ts 10Gan GntearelePsn
                     ) io                   an6oemart
                           inb Gontmnnnort mi           o e atetecytnd
                                                  Tit nds     e esn Poon Faveroy
                                                                             olebeware
meycnm   en voiee
M pianncestaoe  Ote tevaaotowaneie cant ) eato sn 1 t cmourmien amun mainte
enonens Smss Alfeamncas n 3 Gre h reato tacn reanom s ana) n esc 0 fre rcanet a eRt
RNGrNwearatin
Rpwlagtwe        nordton      mearain
in ie Bat a demat    ue memenO
            T fegunoietav     Wengns    at hhmnrcm
                                otome n oo    eancgtm
                                                    seatr20ne bht    etc ate concenatons
                                                                 onceapebaui        ceto
Enirtormmoney




CenteiNo: cxxaoee moyts                 Pagesoti


                                  >                                    CTC I|| adv  anced
                                                                               romiesrurivenn



exoovi—suaoe                                                                  woy 10. 2018


DASY/EASY — Parameters of Probe: EX3DV4 — SN:3944

Callbration Parameter Determined in Body Tissue Simulating Media
   ruun| muily[ "BiP" conrx                  |comry comes mom*|       "has        eB
    1so    sss    oss   io|                   moar omm ons              oms     1208
    aso    sez    os    on                    mm on o|                  om      s120%
    sso    sso    105   to0s                  toos toos oi              om      o
    se     se     118 | sse                   ssm ssm | om              om      eros
    1000   sas    1se | sos                   sos sos | omm             om      rros
    aso    sar    iss   zes                   res ree om                om      | 0s
    2e00   sas    2i    res                   zes zes om                om      ste0%
    asoo   sis    sn    me                    me ze on                  im      rtars
    sam    sso    s» as                       im | is on                im      rmis
    sase   o      se    ie                    an sn on                  im      anmi%
    seoo   se     ses   ass                   ass aos om                im      amn%
    seoo   is     sm     sm                    se se on                 im      es
    Em         «2           soo       «16      a16     a16      aso     190     «18


©renaey naor 00c 190 tsstyges t MSYv onbe o on n mc o ece me
lt ahe l in Ganocant Eunuitc w t nctartsve nc beancy n Frecancy aioy
EeC 3R thei 1 t 20 t i o it Conemensrontn i n idon e meacey Aow Aole ewany
Tocntesnneno n
‘i Regurons o l e mtoav oo ceeo ul 1 19 ud consennto omcs
rrmaes Sno ts mt C e ttpana(can)a evc o t recrcae a e tSt
PRGrr intonyt
CApuloctn        naruad
            mdemnat aneymonin
                        comen Rreho rrinsuh enanny dnaton t e esnt atetater concermicn is
mtied Bara oT Peparots t e ho o ofenmcns bavam 18 e aay uoc ageunhh o to
oitorPetorey




Centerne tos0umayis                     Pagesotn


                                                                                             CTC I|| advanced
                                                                                                         romiesrurivenn



eroove suaoee                                                                                      y in zone
                                        Frequency Response of E—Field
                                              (TEN—Celkift 10 EXX, Waveguide: R22)
      Frequency response (nommalzec)




                                         so         100       1so        aco        zo        xo
                                                              1b
                                                &                                2
                                       Uncetainy of Frequency Responso ofE—feld:s 63% (xa)




cantcanto: Eouewayie                                       Pageroti


                                                                      CTC I|| adv  anced
                                                                              romiesrurivenn



excove—svsoe                                                              w to.z0re


                      Receiving Pattern (¢), 9 = 0°

               12600 MHiz,TEM                           £=1800 MHz.Re2




         o
  trew




         as



                    Uneerisiny of Axaisotropy Assessment£0.5% (eer)




centeato E300myte                     Pagetotss


                                                                CTC I|| adv  anced
                                                                        romiesrurivenn



scov—svzon                                                           ied


                        Dynamic Range f(SARneaq)
                              (TEM cell, fos® 1900 Miiz)
          Inct Sgnalt




                                                    To     io   io
                                @1
                            retcsnsanus               ®
                                                   consemis
                        Uncerainy ofi ity Assessment£08% (cer)


centeae Ne ta0swayie                  Pagesot


                                                                         CTC I|| adv  anced
                                                                                 romiesrurivenn



eroove— svaone                                                                  y 10. 20e
                       Conversion Factor Assessment
             i« aso ue wos n# 0.comnt)                 1+ rso ue wous R22 ocomve)




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




                    ns ae as o« o2 co or or os os 10
                     Uncetaityof Sphericalinotropy Assossment%28% (ee2)


centersto Bostewayie                      Page oot11


                                                     CTC I|| adv  anced
                                                             romiesrurivenn



exoove— svase                                            moy 0. z0re


DASY/EASY — Parameters of Probe: EX3DV4 — SN:3944

Other Probe Parameters
 Serssr Arangemen                                         Tamar|
Comedio Rngle ()                 —                             22\
Mesharicl Surice Dticion Mode                              erais
 OpicaSitice Detecin Wode—                                 deaied|
  Frote Onral tergn                                      ~$27 mm
| FoveSoty Dameer                                           Tonm
  Toh                                                        Smm
  To Danae:                                                25
  Frote Tois SeraorX Catsaien Font                           Tam
  Frote To o Sersor y Gatvaten Fan                           Tam
  Frote Ti o Seriorz Galbvaten Font                          Tam
  Riconmendad Nesswamnt Daiance hoSurace                   Tamm




Centeae no tsmayte                     Page inorns


                            <         .                                      cTe I|| advanced
                                                                                            nobestnntress




 Calibration Laboratory of
  Schmid & Pariner                                                     . SenmnimicerKaiertors
   Engineering AG                                                      g Irverninedtniomage
 Znvgnncasrame 8. to0 archSutsetind                                      Senic mz c mt
                                                                       5. se catratonenice
 Aurataty tw Sas Accaten Serice
 Th SwianAccrnstaio Savcn son ot t(18)
                                    sgrtoie ts te                      Acemstsiono: SCS 0108
 Ahatitrt Agrcemat o t ecoprton o cttratoncottco us
 ie CTCadvanced GmbH                                             uitc ns: D1900V2—54009_May17
 CALIBRATION CERTIFICATE
  Oves                    prscove— sNiseoco
  Cntratonpmedents        oA calosve
                          Caltration procedure for dipole valdation ts above 700 MHz

  Cxtratonae              May 10, 2017
 Ti enbrton contcan merse nay ts ratrnsarvos anc ue e styset so
 Te mesinnont as h rcenartes ince
                             i corfrcs pxtucay n gveon e otomay sages w we nemnn mmers 50
                                                                           arot becammene
 Acstaton hare bences n n clas atomoytaiy: eviomner enpentas 237C an may c 7
 Cxtoaten Eagpment esTt etettcutraton
 un Snss                   w«              caOeComnens)                      Scosves Caeatn
 Fownantee                 s oorm          obn arrcaseitisen                 teers
 Powe use tm esn           on tosou        otveron arreesen                 Aeess
 Pom use inres            on es            otasetr t arrezsen               Aers
 Ideence 2o t Adwser      |stcsoss zse     Ordvett t arrezsan               Ajeis
 Treinanakncomonan        |su manrziomer   oragers ic aircon
 Ravercs Pote Eoove       surso            arteetsts berasce                treir
 oree                     t ce             astmerr o cxtecor mern           uese
 trcotay Sursen           PB               Ciee Oe ttomn                    ccvesvescres
 Powemaw Eus              s omm            crouit nromamronn                intomewece oais
 Powesencrte suumn        s usmm           crouit nromaeaoutn               Intease ce 0o ts
 Pove semcr ie sn        Istummoman..      crositimromaracats               ntome cce oa1s
 i qmenmornas suras       s rome           Ibinttintanectesc o 19           Intoameavce ox18
 Iever twb rsse           |suusirms        inouoiintomeeaczt9               intowmaecc oor
                          Nime                      Prsio                   Sgutee
 corerenty               toriopne                     tatsay Tacmcin        =p t4
 eemity                  K poiove                  Teteuge                M

Th cataton centcte t n brepociznd nces t mtot ie io eatonty                jnves ty te zt

Cinteat is Discove semayir                   Page t ote


                          1        .                                   CTC |I| advanced
                                                                                     mmb otitress



Calibration Laboratory of
Schmid & Partner
                                                                   8. Strmeimmticteritc
                                                                      Sevic nuae stanornage
  Engineering AG                                                   C qninemisestiniee
Anvgroomtrase 3100 2wchSntvins                                     8. seie Cattatonvce
Accnttoty ne Sus udn Srice5)                                       Acersusionns: SCS 0108
The Swin Accnttton Srvce s on o inesignatones t me t
Ahotaneragrenant oh recopnton t cairatoncrstcns
Glossary:
TS                   tissue simulatinglquid
Come                 sensitvity in TSL / NORM x.e
NA                   not applicable or not measured
Callbrationis Performed According to the Following Standar
   a) IEEE Std 1528—2013,"EEE Recommended Practice for Detormining the Poak Spatial—
       Averaged Specific Absorption Rate (SAR)in the Human Head from Wireless
       Communications Devices: Measurement Techniques®, June 2013
   b) 12C 62200—1, "Procedure to measure the Speciic Absorption Rate (SAR)for hand.held
       devices used in close proximity to the ear (fequency range of 300 MHz to 3 GHz)*
       Febriary 2005
    e) 12C 62200—2, "Procedure to determine the Specifc Absorption Rate (SAR) for wireloss
       communication devices used in close proximiy to the human body (requency range of 30
       MHz to 6 GHz)®, Mareh 2010
    ) KDB 865664, "SAR Measurement Requirements for 100 MHz to 6 GHz"
Additional Documentation:
   a) DASY4!S System Handbook
Mnhodl Applied and Interpretation of Parameters:
      Measurement Condtions: Further details are avaiable from the Validation Report at he end
      o the certficate. Alfiqures stated in the certficate are vai at tfrequency indicated.
   * Antenna Parameters with TSL: The dipole is mounted with the spacer to position itfeed
      point exactly below the center marking of the at phantom section, with the arms oriented
      paralel to he body ax‘s.
   * Feed Point Impedance and Retum Loss: These parameters are measured with the dipolo
      posiioned under the lquid filed phantom. The impedance stated is ransformed from the
      measurement at the SMA connector tothe feed point. The Retum Loss ensures low
      teflected power. No uncertainty required.
   * Electrial Delay: One—way delay between the SMA connector and the antenna feed poin.
      No uncertainty required.
      SAF measured: SAR measured atthe stated antenna input power.
      SAF normalized: SAR as measured, normalized to an input power of 1 W at the antenna
      connector.
   + $AR for nominal TSL paramoters: The measured TSL parameters are used to calculate the
      nominal SAR result
 The reported uncertainty of measurement is stated as the standard uncertainty of measurement
 mutiped by the coverage factor k=2, which for a normal distrbution corresponds to a coverage
 probabilty of approximately 95%.


Conteate No: Drooovessoonmayir               Papeacts


                                                                                etcill advanced
                                                                                       nmbwetmdrese



Measurement Conditions
   DASY syem coniguaton.as t asna             on page 1
    DASY version                                       mieve                          weree
    Exrapoinion                                  Rorrced Extaponton
    Pramiom                                       Woddar FatPranon
    Distince Dipoie Cnter— TS                           Tomm                         win Svacer
    Zoom Sean Resotuion                            porem
    Freqerey                                       woomics riew

Head TSL parameters
   Te fotowing paaretrsand calcatons yem appled
                                                          Temperaire    Pemitvy          Conductvity
    Nominal Head TSL parameters                             zo‘            «o             140 mom
    Measured Head TSL parameters                          @zoz02°C      «13668          1t0mtom«6%
    Head TSL temperature change durng ies                   <asc           —                  =
SAR result with Head TSL

    ht averagd over 1 on (t ) o Head TSL                   Condtion
    SaF measured                                    250 m nout power                 srwng
    SA orromina Head TSt parametos                    nomaized io 1W        ana wing a 170 %t
    ht avraged ove 10 en (10 ) o Head TSC                condton
    SR neasured                                     250 mW nout power            srewng
    SW for romial Hoad TSpranter                     nomaizedio tw          207 wa 103 % ten

Body TSL parameters
  Te pwarters and clcaions wee appled
                                                          Temperatre    Permitiviy       Conductviy
    Nominal Bod TSL parameters                              o‘             ass            152ntom
    Measured Body TSparamaters                            @eozome        |_sizk6%       18imomes®
    Body TSL temperature change during test                 <os‘c           —                —
SAR result with Body TSL

    SA averaged over 1 en" (1 ) ot Bocy TSL              Condtion
    SW nessues                                      250 mW neutpower                 oi wio
     SW o nominl Body TSL paramaters                  nomaizedio TW         s07 wa 170 % en
    SA averaged ove 10 en (10g) o Body TS      condton
    SA neasues                            280 mt neut power                       scowno
    S or rominal Body TSt parematers       nomalzed io 1W                   F18 wig a 165 % en


Centeat No: DrocoveonsMayir                       Pageacts


                                                                             etei| udvanced
                                                                                   mnseratinttteme



Appendix (Additional assessments outside the scope of SCS 0108)
Antenna Parameters with Head TSL
    inprdancn.raraformedis ons port                                  sizn—zen
    newnLoss                                                           —sose

Antenna Parameters with Body TSL
    inpedance. wanafomadio oed pont                                  wr1a—s2m
    rewn Lom                                                          —mew

General Antenna Parameters and Design
   [Eeevieat Doiy ne trecton                      |                     irgene                       ]
Aterlangtorm use wih 100M radated pover, onl a siht warringo the ea newr hefeedpint can be measurd
ooo
secont am o in dpoie Th artena is marfor shortcisutedfor DCsignals. Onsome of he pols, smalland cape
are ied t the dpole ams n d t mprove machng when loaded acorieg th poston as elained n the
‘Measrament Contions" paragrach ThSAR data are nt aifete by hischange. To oveallGpol lengh is sit
accortng to ho Stndart
No excessv orce mustbe agplad t t pole amms,because ty rigt bandorhesoideed connectons newr e
fnedpoit may e damaged

Additional EUT Data

     Mandactuedy
     Mandactured on                                                 Febwa 22 2oce




Certtcare No: prosovesartesayt?                Papetors


                                                                        CTe I|| advanced
                                                                                 nabeetnntress



DASYS Validation Report for Head TSL
                                                                            Dae: 10082017
Test Laboratory: SPEAG, Zurich, Switreland
DUT: Dipole 1900 MHz; Type: DI900V2; Serial: DI900V2       sow
Communication System: UID 0 CW; Frequency: 1900 MH
Mediamparametons used: f= 1900 MHe:a 14 $/mo = 41,3;p = 1000k/
Phantom section: Mat Section
Measurement Standard: DASYS (IEEENEC/ANSI C63,19—2011)
DASY52 Configuration
   +. Probe: EXGDV:— SN7349; ConvR8.12, 8.12,.12); Calibeaed: 31.12.2016;
   + Sensor—Surfics: 1.¥mm (Mechanical Surface Detection)
   + Electronics; DA4 Sn601: Calibrated: 28.03.2017
   +. Phantom: Flat Phantom 5.0 (frontType: QDOOOPSOAA:Seril: 1001
   + basyse s2.100(a0; SEMCAD X 146.100416)

Dipole Calibration for Head Tissue/Pi                =10mm/Zoom Scan (77x7)/Cube 0:
Measurement grid: dn=Smum, dy=Smmm,
Reference Value 105.9 Vim; Power Drift
Peak SAR (extrapolated) = 17.8 Wike
SARC i) =9.74 Wikigs SARCIO g)= 5.14 We
Maximum value of SAR (measured) = 14.6 Whkg
      «
      o
      <aso
      120
      um
      aaan
      aso0
                      146 Why    11.64 dBWhg




CenteatNo: orocovescoos mayir             Papssors


                                    ,                                  ctTe I|| advanced
                                                                                reniwstiintvine



  Impedance Measurement Plot for Head TSL



           tap s aoge                         w n rur seane
                                  usns some msospe    1 sonoon con mz

          on




          o0 qs igs          s anongr m o             yanony on _1 gonoonenc


          c




          me
                  sram 1 rexaos se mc                     drorstexmecome—




Ceniicare No: procovescoonmoyir             Papsors


                                                                              cTe I|| advanced
                                                                                      mnivstiintione



 DASY5 Validation Report for Body TSL
                                                                                  Dare: 10082017
 Test Laboratory: SPEAG, ZurichSwitredand
 DUT: Dipole 1900 Mitz; Type: 190002; Serials DI900V2 — SN:30009
 Communication System: UID 0 — CW Frequency: 1900 MHz
 Medium pa meters used: 1900 MHz: a= 1.51 Sim;a                = 1000 ka/m‘
 Phantom section: Mat Section
 Measurement Standard: DASVS (IEEEEC/ANSI C63,10—2011)
 DASY52 Configuation:
       Probe: EX3DV4— SN7349; ConvF(®.03, $.03, $.03);Caliated: 31.12.2016;
       s      Surfice: 14mm (Mechanical Surfice Detection)
       Electronics: DAE4 Sn60; Calibeted: 28.03.2017
       Phantom: Flat Phantom 5.0 (back)s Type: QD 000 P50 AA; Serial: 1002
       pasyse s2.1000440; Mcan x 146.100416)

Dipole Calibration for Body Tissue/Pin=250 mW,           =10mm/Zoom Sean (7x7x7V/Cube
Measurement arid       mm, dy=Smm,de
Reference Value = 102.6 Vim; Poer Drif
Peak SAR (extrpolated) 178 hy
SARd w 0.4WSARCO
Maximum value of SAR (measured
      «a
       o
       300
       —sao
       nze
       1200
      z0
                                   1164 dBWhy




Conteat ns oiooovescoos mayir                Pagsrors


                                  .                             ctci|l advanced
                                                                       mnivstiintione



 Impedance Measurement Plot for Body TSL



          m is aor                             10 hy mt cesinim
                                naeore szere mmrspe     1 2oc0s ooo m

         on
         c                                i              \
                                                   se#
                                                         4
         t
         me
         o0 sn     uon     o stour sn _            j


         c


         o
         me                 —4  1         +        ._}      ... L.3
                 "araes rexsw mc                   "droversemsesseme




Cntcare No: praoovescoosmayir           Pageacrs


                            Test report no.: 1-6814/18-01-04

Antenna Parameters with Head TSL

                                     From cal. data      Measured 2018-07-19
  Impedance; transformed to feed
                                     51.2Ω +2.6jΩ           51.3Ω +2.2jΩ
               point
          Return Loss                   -30.9dB                -32.2dB




                                         Page 22 of 32


                            Test report no.: 1-6814/18-01-04



Antenna Parameters with Body TSL

                                     From cal. data      Measured 2018-07-19
  Impedance; transformed to feed
                                     46.1Ω +3.2jΩ           46.5Ω + 2.9jΩ
               point
          Return Loss                   -25.6dB                -26.5dB




                                         Page 23 of 32


                        Test report no.: 1-6814/18-01-04


4   Calibration certificate of Data Acquisition Unit (DAE)




                                     Page 24 of 32


                                                                                                         || advanced  er of RWTC




  Schmid & Partner
Engineering AG
  Zeughausstrasse 43, 8004 Zurich, Switzerland, Phone +41 1 245 97 00, Fax +41 1 245 97 79




  Certificate of conformity / First Article Inspection

   Item                             SAM Twin Phantom V4.0
   Type No                          QD 000 P40 BA
   Series No                        TP—1002 and higher
   Manufacturer / Origin            Untersee Composites
                                    Hauptstr. 69
                                    CH—8559 Fruthwilen
                                    Switzerland

  Tests

  The series production process used allows the limitation to test of first articles.
  Complete tests were made on the pre—series Type No. QD 000 P40 AA, Serial No. TP—1001 and on the
  series first article Type No. QD 000 P40 BA, Serial No. TP—1006. Certain parameters have been retested
  using further series units (called samples).

   Test                    Requirement                                  Details                      Units tested
   Shape                   Compliance with the geometry                 IT‘IS CAD File (*)           First article,
                           according to the CAD model.                                               Samples
   Material thickness      Compiiant with the requirements              2mm +/— 0.2mm in             First article,
                           according to the standards                   specific areas               Samples
   Material                Dielectric parameters for required           200 MHz —3 GHz               Material
   parameters              frequencies                                  Relative permittivity < 5|   sample
                                                                        Loss tangent < 0.05.         TP 104—5
   Material resistivity    The material has been tested to be            Liquid type HSL 1800        Pre—series,
                           compatible with the liquids defined in       and others according to      First article
                           the standards                                the standard.

  Standards

  [1]    CENELEC EN 50361
  [2]    IEEE P1528—200% draft 6.5
  [3]    EC PT 62209 draft 0.9
  {*)    The ITIS CAD file is derived from [2] and is also within the tolerance requirements of the shapes of
         [1] and [3].

  Conformity

  Based on the sample tests above, we certify that this Item is in compliance with the uncertainty
  requirements of SAR measurements specified in standard [1] and draft standards [2] and [3].



  Date                                18.11.2001

                      ff                                                                      e                ,
  SignaturelSt{n{pZO“r‘,/%                 Schmid & Partner                          % J&(A‘/"é‘
                                        Engineering AG
                                           Teughausetrasse 43, CH—8004 Zurich
                                           1'-1.’\»41 1 245 97 00, Fax +41 1 245 97 79
                                           L



  Doc No    881 — GD 000 P40 BA—B                                                                    Page          1(1)


                                 Test report no.: 1-6814/18-01-04


6     Application Note System Performance Check

6.1   Purpose of system performance check
The system performance check verifies that the system operates within its specifications. System and
operator errors can be detected and corrected. It is recommended that the system performance check is
performed prior to any usage of the system in order to guarantee reproducible results.
The measurement of the Specific Absorption Rate (SAR) is a complicated task and the result depends on
the proper functioning of many components and the correct settings of many parameters. Faulty results due
to drift, failures or incorrect parameters might not be recognized, since they often look similar in distribution
to the correct ones. The Dosimetric Assessment System DASY5 incorporates a system performance check
procedure to test the proper functioning of the system. The system performance check uses normal SAR
measurements in a simplified setup (the flat section of the SAM Twin Phantom) with a well characterized
source (a matched dipole at a specified distance). This setup was selected to give a high sensitivity to all
parameters that might fail or vary over time (e.g., probe, liquid parameters, and software settings) and a low
sensitivity to external effects inherent in the system (e.g., positioning uncertainty of the device holder). The
system performance check does not replace the calibration of the components. The accuracy of the system
performance check is not sufficient for calibration purposes. It is possible to calculate the field quite
accurately in this simple setup; however, due to the open field situation some factors (e.g., laboratory
reflections) cannot be accounted for. Calibrations in the flat phantom are possible with transfer calibration
methods, using either temperature probes or calibrated E-field probes. The system performance check also
does not test the system performance for arbitrary field situations encountered during real measurements of
mobile phones. These checks are performed at SPEAG by testing the components under various conditions
(e.g., spherical isotropy measurements in liquid, linearity measurements, temperature variations, etc.), the
results of which are used for an error estimation of the system. The system performance check will indicate
situations where the system uncertainty is exceeded due to drift or failure.

6.2   System Performance check procedure
Preparation
The conductivity should be measured before the validation and the measured liquid parameters must be
entered in the software. If the measured values differ from targeted values in the dipole document, the liquid
composition should be adjusted. If the validation is performed with slightly different (measured) liquid
parameters, the expected SAR will also be different. See the application note about SAR sensitivities for an
estimate of possible SAR deviations. Note that the liquid parameters are temperature dependent with
approximately – 0.5% decrease in permittivity and + 1% increase in conductivity for a temperature decrease
of 1° C. The dipole must be placed beneath the flat phantom section of the Generic Twin Phantom with the
correct distance holder in place. The distance holder should touch the phantom surface with a light pressure
at the reference marking (little hole) and be oriented parallel to the long side of the phantom. Accurate
positioning is not necessary, since the system will search for the peak SAR location, except that the dipole
arms should be parallel to the surface. The device holder for mobile phones can be left in place but should
be rotated away from the dipole. The forward power into the dipole at the dipole SMA connector should be
determined as accurately as possible. The actual dipole input power level can be between 20mW and
several watts. The result can later be normalized to any power level. It is strongly recommended to note the
actually used power level in the „comment“-window of the measurement file; otherwise you loose this crucial
information for later reference.




                                                Page 26 of 32


                                  Test report no.: 1-6814/18-01-04

System Performance Check
The DASY5 installation includes predefined files with recommended procedures for measurements and
validation. They are read-only document files and destined as fully defined but unmeasured masks, so you
must save the finished validation under a different name. The validation document requires the Generic Twin
Phantom, so this phantom must be properly installed in your system. (You can create your own
measurement procedures by opening a new document or editing an existing document file). Before you start
the validation, you just have to tell the system with which components (probe, medium, and device) you are
performing the validation; the system will take care of all parameters. After the validation, which will take
about 20 minutes, the results of each task are displayed in the document window. Selecting all measured
tasks and opening the predefined “validation” graphic format displays all necessary information for validation.
A description of the different measurement tasks in the predefined document is given below, together with
the information that can be deduced from their results:
•     The „reference“ and „drift“ measurements are located at the beginning and end of the batch process.
      They measure the field drift at one single point in the liquid over the complete procedure. The indicated
      drift is mainly the variation of the amplifier output power. If it is too high (above ± 0.1dB) the validation
      should be repeated; some amplifiers have very high drift during warm-up. A stable amplifier gives drift
      results in the DASY5 system below ± 0.02 dB.
•     The „area scan“ measures the SAR above the dipole on a parallel plane to the surface. It is used to
      locate the approximate location of the peak SAR with 2D spline interpolation. The proposed scan uses
      large grid spacing for faster measurement; due to the symmetric field the peak detection is reliable. If a
      finer graphic is desired, the grid spacing can be reduced. Grid spacing and orientation have no influence
      on the SAR result.
•     The zoom scan job measures the field in a volume around the peak SAR value assessed in the previous
      „area“ scan (for more information see the application note on SAR evaluation).
If the validation measurements give reasonable results, the peak 1g and 10g spatial SAR values averaged
between the two cubes and normalized to 1W dipole input power give the reference data for comparisons.
The next section analyzes the expected uncertainties of these values. Section 6 describes some additional
checks for further information or troubleshooting.

6.3     Uncertainty Budget
Please note that in the following Tables, the tolerance of the following uncertainty components depends on
the actual equipment and setup at the user location and need to be either assessed or verified on-site by the
end user of the DASY5 system:
• RF ambient conditions
• Dipole Axis to Liquid Distance
• Input power and SAR drift measurement
• Liquid permittivity - measurement uncertainty
• Liquid conductivity - measurement uncertainty
Note: All errors are given in percent of SAR, so 0.1 dB corresponds to 2.3%. The field error would be half of
that. The liquid parameter assessment give the targeted values from the dipole document. All errors are
given in percent of SAR, so 0.1dB corresponds to 2.3%. The field error would be half of that.




                                                  Page 27 of 32


                               Test report no.: 1-6814/18-01-04

System validation

In the table below, the system validation uncertainty with respect to the analytically assessed SAR
value of a dipole source as given in the IEEE1528 standard is given. This uncertainty is smaller
than the expected uncertainty for mobile phone measurements due to the simplified setup and the
symmetric field distribution.

                          Uncertainty Budget for System Validation
                                  for the 0.3 - 6 GHz range
         Source of            Uncertainty Probability Divisor ci     ci Standard Uncertainty vi2 or
        uncertainty             Value     Distribution        (1g) (10g) ± %, (1g) ± %, (10g) veff
Measurement System
Probe calibration              ±   6.6   %     Normal           1    1      1     ±    6.6   %   ±    6.6   %   ∞
Axial isotropy                 ±   4.7   %   Rectangular   √    3    1      1     ±    2.7   %   ±    2.7   %   ∞
Hemispherical isotropy         ±   9.6   %   Rectangular   √    3    0      0     ±    0.0   %   ±    0.0   %   ∞
Boundary effects               ±   1.0   %   Rectangular   √    3    1      1     ±    0.6   %   ±    0.6   %   ∞
Probe linearity                ±   4.7   %   Rectangular   √    3    1      1     ±    2.7   %   ±    2.7   %   ∞
System detection limits        ±   1.0   %   Rectangular   √    3    1      1     ±    0.6   %   ±    0.6   %   ∞
Readout electronics            ±   0.3   %     Normal           1    1      1     ±    0.3   %   ±    0.3   %   ∞
Response time                  ±   0.0   %   Rectangular   √    3    1      1     ±    0.0   %   ±    0.0   %   ∞
Integration time               ±   0.0   %   Rectangular   √    3    1      1     ±    0.0   %   ±    0.0   %   ∞
RF ambient conditions          ±   1.0   %   Rectangular   √    3    1      1     ±    0.6   %   ±    0.6   %   ∞
Probe positioner               ±   0.8   %   Rectangular   √    3    1      1     ±    0.5   %   ±    0.5   %   ∞
Probe positioning              ±   6.7   %   Rectangular   √    3    1      1     ±    3.9   %   ±    3.9   %   ∞
Max. SAR evaluation            ±   2.0   %   Rectangular   √    3    1      1     ±    1.2   %   ±    1.2   %   ∞
Dipole Related
Dev. of exp. dipole            ± 5.5 % Rectangular         √ 3       1      1     ± 3.2 % ± 3.2 %               ∞
Dipole Axis to Liquid Dist.    ± 2.0 % Rectangular         √ 3       1      1     ± 1.2 % ± 1.2 %               ∞
Input power & SAR drift        ± 3.4 % Rectangular         √ 3       1      1     ± 2.0 % ± 2.0 %               ∞
Phantom and Set-up
Phantom uncertainty            ±   4.0   %   Rectangular   √ 3       1      1     ±    2.3   %   ±    2.3   %    ∞
SAR correction                 ±   1.9   %   Rectangular   √ 3       1     0.84   ±    1.1   %   ±    0.9   %    ∞
Liquid conductivity (meas.)    ±   5.0   %     Normal        1      0.78   0.71   ±    3.9   %   ±    3.6   %    ∞
Liquid permittivity (meas.)    ±   5.0   %     Normal        1      0.26   0.26   ±    1.3   %   ±    1.3   %    ∞
Temp. unc. - Conductivity      ±   1.7   %   Rectangular   √ 3      0.78   0.71   ±    0.8   %   ±    0.7   %    ∞
Temp. unc. - Permittivity      ±   0.3   %   Rectangular   √ 3      0.23   0.26   ±    0.0   %   ±    0.0   %    ∞
Combined Uncertainty                                                              ±   10.7   %   ±   10.6   %   330
Expanded Std.
                                                                                  ± 21.4 % ± 21.1 %
Uncertainty

Table 1: Measurement uncertainties of the System Validation with DASY5 (0.3-6GHz). The RF ambient
noise uncertainty has been reduced to ±1.0, considering input power levels are ≥ 250mW.




                                                Page 28 of 32


                                Test report no.: 1-6814/18-01-04

Performance check repeatability
The repeatability check of the validation is insensitive to external effects and gives an indication of the
variations in the DASY5 measurement system, provided that the same power reading setup is used for all
validations. The repeatability estimates for frequencies below ad above 3GHz are given in the following
tables:

                              Repeatability Budget for System Check
                                    for the 0.3 - 3 GHz range
          Source of           Uncertainty     Probability Divisor ci     ci  Standard Uncertainty v 2 or
                                                                                                   i
         uncertainty            Value         Distribution        (1g) (10g) ± %, (1g) ± %, (10g) veff
Measurement System
Repeatability of probe cal.     ±   1.8   %     Normal           1    1      1     ±   1.8   %   ±   1.8   %   ∞
Axial isotropy                  ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Hemispherical isotropy          ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Boundary effects                ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Probe linearity                 ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
System detection limits         ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Modulation response             ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Readout electronics             ±   0.0   %     Normal           1    1      1     ±   0.0   %   ±   0.0   %   ∞
Response time                   ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Integration time                ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
RF ambient noise                ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
RF ambient positioning          ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Probe positioner                ±   0.4   %   Rectangular    √   3    1      1     ±   0.2   %   ±   0.2   %   ∞
Probe positioning               ±   2.9   %   Rectangular    √   3    1      1     ±   1.7   %   ±   1.7   %   ∞
Max. SAR evaluation             ±   0.0   %   Rectangular    √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Dipole Related
Dev. of experimental dipole     ± 0.0 %       Rectangular    √3       1      1     ±   0.0 % ±       0.0 %     ∞
Dipole axis to liquid dist.     ± 2.0 %       Rectangular    √3       1      1     ±   1.2 % ±       1.2 %     ∞
Input power & SAR drift         ± 3.4 %       Rectangular    √3       1      1     ±   2.0 % ±       2.0 %     ∞
Phantom and Set-up
Phantom uncertainty             ±   4.0   %   Rectangular    √3       1      1     ±   2.3   %   ±   2.3   %   ∞
SAR correction                  ±   1.9   %   Rectangular    √3       1     0.84   ±   1.1   %   ±   0.9   %   ∞
Liquid conductivity (meas.)     ±   5.0   %     Normal        1      0.78   0.71   ±   3.9   %   ±   3.6   %   ∞
Liquid permittivity (meas.)     ±   5.0   %     Normal        1      0.26   0.26   ±   1.3   %   ±   1.3   %   ∞
Temp. unc. - Conductivity       ±   1.7   %   Rectangular    √3      0.78   0.71   ±   0.8   %   ±   0.7   %   ∞
Temp. unc. - Permittivity       ±   0.3   %   Rectangular    √3      0.23   0.26   ±   0.0   %   ±   0.0   %   ∞
Combined Uncertainty                                                               ±   5.9   %   ±   5.7   %
Expanded Std.
                                                                                   ± 11.9 % ± 11.4 %
Uncertainty

Table 2: Repeatability of the System Check with DASY5 (0.3-3GHz)




                                                 Page 29 of 32


                                 Test report no.: 1-6814/18-01-04



                              Repeatability Budget for System Check
                                     for the 3 - 6 GHz range
          Source of            Uncertainty Probability Divisor ci     ci Standard Uncertainty vi2 or
         uncertainty             Value     Distribution        (1g) (10g) ± %, (1g) ± %, (10g) veff
Measurement System
Repeatability of probe cal.     ±   1.8   %     Normal            1    1      1     ±   1.8   %   ±   1.8   %   ∞
Axial isotropy                  ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Hemispherical isotropy          ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Boundary effects                ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Probe linearity                 ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
System detection limits         ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Modulation response             ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Readout electronics             ±   0.0   %     Normal            1    1      1     ±   0.0   %   ±   0.0   %   ∞
Response time                   ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Integration time                ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
RF ambient noise                ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
RF ambient positioning          ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Probe positioner                ±   0.8   %   Rectangular     √   3    1      1     ±   0.5   %   ±   0.5   %   ∞
Probe positioning               ±   6.7   %   Rectangular     √   3    1      1     ±   3.9   %   ±   3.9   %   ∞
Max. SAR evaluation             ±   0.0   %   Rectangular     √   3    1      1     ±   0.0   %   ±   0.0   %   ∞
Dipole Related
Dev. of experimental dipole     ± 0.0 % Rectangular           √ 3      1      1     ± 0.0 % ± 0.0 %             ∞
Dipole axis to liquid dist.     ± 2.0 % Rectangular           √ 3      1      1     ± 1.2 % ± 1.2 %             ∞
Input power & SAR drift         ± 3.4 % Rectangular           √ 3      1      1     ± 2.0 % ± 2.0 %             ∞
Phantom and Set-up
Phantom uncertainty             ±   4.0   %   Rectangular     √ 3      1      1     ±   2.3   %   ±   2.3   %   ∞
SAR correction                  ±   1.9   %   Rectangular     √ 3      1     0.84   ±   1.1   %   ±   0.9   %   ∞
Liquid conductivity (meas.)     ±   5.0   %     Normal          1     0.78   0.71   ±   3.9   %   ±   3.6   %   ∞
Liquid permittivity (meas.)     ±   5.0   %     Normal          1     0.26   0.26   ±   1.3   %   ±   1.3   %   ∞
Temp. unc. - Conductivity       ±   1.7   %   Rectangular     √ 3     0.78   0.71   ±   0.8   %   ±   0.7   %   ∞
Temp. unc. - Permittivity       ±   0.3   %   Rectangular     √ 3     0.23   0.26   ±   0.0   %   ±   0.0   %   ∞
Combined Uncertainty                                                                ±   6.9   %   ±   6.7   %
Expanded Std.
                                                                                    ± 13.8 % ± 13.4 %
Uncertainty

Table 3: Repeatability of the System Check with DASY5 (3-6GHz)


Note: Worst case probe calibration uncertainty has been applied for all probes used during the
measurements.


The expected repeatability deviation is low. Excessive drift (e.g., drift in liquid parameters), partial system
failures or incorrect parameter settings (e.g., wrong probe or device settings) will lead to unexpectedly high
repeatability deviations. The repeatability gives an indication that the system operates within its initial
specifications. Excessive drift, system failure and operator errors are easily detected.




                                                 Page 30 of 32


                                  Test report no.: 1-6814/18-01-04

6.4     Power set-up for validation
The uncertainty of the dipole input power is a significant contribution to the absolute uncertainty and the
expected deviation in interlaboratory comparisons. The values in Section 2 for a typical and a sophisticated
setup are just average values. Refer to the manual of the power meter and the detector head for the
evaluation of the uncertainty in your system. The uncertainty also depends on the source matching and the
general setup. Below follows the description of a recommended setup and procedures to increase the
accuracy of the power reading:




The figure shows the recommended setup. The PM1 (incl. Att1) measures the forward power at the location
of the validation dipole connector. The signal generator is adjusted for the desired forward power at the
dipole connector and the power meter PM2 is read at that level. After connecting the cable to the dipole, the
signal generator is readjusted for the same reading at power meter PM2. If the signal generator does not
allow a setting in 0.01dB steps, the remaining difference at PM2 must be noted and considered in the
normalization of the validation results. The requirements for the components are:
•     The signal generator and amplifier should be stable (after warm-up). The forward power to the dipole
      should be above 10mW to avoid the influence of measurement noise. If the signal generator can deliver
      15dBm or more, an amplifier is not necessary. Some high power amplifiers should not be operated at a
      level far below their maximum output power level (e.g. a 100W power amplifier operated at 250mW
      output can be quite noisy). An attenuator between the signal generator and amplifier is recommended to
      protect the amplifier input.
•     The low pass filter after the amplifier reduces the effect of harmonics and noise from the amplifier. For
      most amplifiers in normal operation the filter is not necessary.
•     The attenuator after the amplifier improves the source matching and the accuracy of the power head.
      (See power meter manual.) It can also be used also to make the amplifier operate at its optimal output
      level for noise and stability. In a setup without directional coupler, this attenuator should be at least
      10dB.
•     The directional coupler (recommended ³ 20dB) is used to monitor the forward power and adjust the
      signal generator output for constant forward power. A medium quality coupler is sufficient because the
      loads (dipole and power head) are well matched. (If the setup is used for reflective loads, a high quality
      coupler with respect to directivity and output matching is necessary to avoid additional errors.)
•     The power meter PM2 should have a low drift and a resolution of 0.01dBm, but otherwise its accuracy
      has no impact on the power setting. Calibration is not required.
•     The cable between the coupler and dipole must be of high quality, without large attenuation and phase
      changes when it is moved. Otherwise, the power meter head PM1 should be brought to the location of
      the dipole for measuring.
•     The power meter PM1 and attenuator Att1 must be high quality components. They should be calibrated,
      preferably together. The attenuator (³10dB) improves the accuracy of the power reading. (Some higher
      power heads come with a built-in calibrated attenuator.) The exact attenuation of the attenuator at the
      frequency used must be known; many attenuators are up to 0.2dB off from the specified value.
•     Use the same power level for the power setup with power meter PM1 as for the actual measurement to
      avoid linearity and range switching errors in the power meter PM2. If the validation is performed at
      various power levels, do the power setting procedure at each level.


                                                 Page 31 of 32


                                 Test report no.: 1-6814/18-01-04

•     The dipole must be connected directly to the cable at location “X”. If the power meter has a different
      connector system, use high quality couplers. Preferably, use the couplers at the attenuator Att1 and
      calibrate the attenuator with the coupler.
•     Always remember: We are measuring power, so 1% is equivalent to 0.04dB.

6.5     Laboratory reflection
In near-field situations, the absorption is predominantly caused by induction effects from the magnetic near-
field. The absorption from reflected fields in the laboratory is negligible. On the other hand, the magnetic field
around the dipole depends on the currents and therefore on the feed point impedance. The feed point
impedance of the dipole is mainly determined from the proximity of the absorbing phantom, but reflections in
the laboratory can change the impedance slightly. A 1% increase in the real part of the feed point impedance
will produce approximately a 1% decrease in the SAR for the same forward power. The possible influence of
laboratory reflections should be investigated during installation. The validation setup is suitable for this
check, since the validation is sensitive to laboratory reflections. The same tests can be performed with a
mobile phone, but most phones are less sensitive to reflections due to the shorter distance to the phantom.
The fastest way to check for reflection effects is to position the probe in the phantom above the feed point
and start a continuous field measurement in the DASY5 multi-meter window. Placing absorbers in front of
possible reflectors (e.g. on the ground near the dipole or in front of a metallic robot socket) will reveal their
influence immediately. A 10dB absorber (e.g. ferrite tiles or flat absorber mats) is probably sufficient, as the
influence of the reflections is small anyway. If you place the absorber too near the dipole, the absorber itself
will interact with the reactive near-field. Instead of measuring the SAR, it is also possible to monitor the
dipole impedance with a network analyzer for reflection effects. The network analyzer must be calibrated at
the SMA connector and the electrical delay (two times the forward delay in the dipole document) must be set
in the NWA for comparisons with the reflection data in the dipole document. If the absorber has a significant
influence on the results, the absorber should be left in place for validation or measurements. The reference
data in the dipole document are produced in a low reflection environment.

6.6     Additional system checks
While the validation gives a good check of the DASY5 system components, it does not include all
parameters necessary for real phone measurements (e.g. device modulation or device positioning). For
system validation (repeatability) or comparisons between laboratories a reference device can be useful. This
can be any mobile phone with a stable output power (preferably a device whose output power can be set
through the keyboard). For comparisons, the same device should be sent around, since the SAR variations
between samples can be large. Several measurement possibilities in the DASY5 software allow additional
tests of the performance of the DASY5 system and components. These tests can be useful to localize
component failures:
•     The validation can be performed at different power levels to check the noise level or the correct
      compensation of the diode compression in the probe.
•     If a pulsed signal with high peak power levels is fed to the dipole, the performance of the diode
      compression compensation can be tested. The correct crest factor parameter in the DASY5 software
      must be set (see manual). The system should give the same SAR output for the same averaged input
      power.
•     The probe isotropy can be checked with a 1D-probe rotation scan above the feed point. The automatic
      probe alignment procedure must be passed through for accurate probe rotation movements (optional
      DASY5 feature with a robot-mounted light beam unit). Otherwise the probe tip might move on a small
      circle during rotation, producing some additional isotropy errors in gradient fields.




                                                 Page 32 of 32



Document Created: 2019-01-25 10:44:00
Document Modified: 2019-01-25 10:44:00

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