SAR Test Report Part III

FCC ID: WA2-ST4940

RF Exposure Info

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FCCID_4215384

Calibration Laboratory of &\'//'l/,> Schweizerischerki Schmid & Partner * * Eamemmenes — Engineering AG 5. senvite avieme t tatire Zrognavastiasse 8, 6004 2urch, Sutterand $ Svies Cattration Service Actradted by ha SwasRccretaton Serice (GAG) Accreataton No: SCS 0108 ‘Te Snss Accredtation Servie is one atte ignatotiesto e EA HutbtaterAgreement t thecognton oratiraton centtctos ciew ‘Onetech (Dymstec) centiew no: D1750V2—1122.Jul18 CALIBRATION CERTIFICATE Creet pirsove—sitr122 cotatonsmcedunts oa cat—osvio Calbration procedure for dipole validation kits above 700 MHz Cattraton ce July 20, 2018 ‘is caiaion cutfeat docsments h taceasaty ts naloralsarcars,wichreatze e physcal unds f mensurements 5 The messsremensand h uncetanies vat contdence prcbasiy are ven on th fotowng pagesand ar par o the cotcale Adcaitratonshave en conducto in h closn abortay lcity envronment teperature 22 237C and humisty «700 Catbaton Eaementused (VATE enteatorcaltrton) Prmary Stndads IEB CalDate (Contca No) Screded Caitraten Posenete Nee surore ortpers io. 21zcesranzern Apers Pove sens htpz91 onrosome oeagere io. arreeera Apers Pove semorhRP291 sn roses otapers tto atrceerg Aoors Reternce 20 8 Anervater sucsose co otagers t 2tzcasen Aoots Topet miamath continato sn sorra/oeser obere o. 2i7ces Aous Ratence Pobe EDVe sn raw 30e17 (ie BereinDectr) Doore oase sn cor 2017o patseo1 ocm ocere Seeondar Standarts EB Creck Date (nhouse) Screded Check Pover mase Eoih se ammons oroans ntonectea ooo inhousectea on 10 Povesensc hP Sa8ta en ussreserms oromis (ntomectecc 019 inrouse ctec: Oc Pove serso h9 Ba8tA sn anmenoentt orocis (nhowecteccOcr9 inhouse ced Oc AF genea: ns suros on roome 1815 n house cteck Oct10) Inrouse ctecs Oct18 Netwot Araizren EB3S0A.| Sn userob0e77 orMarte(ntounectect Oe Inroume ces Ocer8 Name Furcion Spave Catocud by Mans Sate Laterioy Techicin Z2 4 Acorovy Kate Poioic ‘TechricaMarager W Iesud: y 20, 2018 Tiseatestoncortfcashan e rerasvent arcet n itwthoct witen acoresa o the atorton: Certicate No: 175021122Jute Page 1 ot8

Calibration Laboratory of . Sciweizenischer Kalloterdanst Schmid & Partner g Serven suisse tionnage Engineering AG Serviio viero ol araturn 1Zughausatrasse d, 6004 2uich, Suttzetand .. Sss Catbraton Serice Accrdted y be Snis Accustaton Senice (AS) Accrestaton : SCS 0108 The Swise Acrectaion Service is on o theaigntores t he EA MuttteratAgreementtorth recogniton ot clbration certtcates Glossary: TSL tissue simulating liquid Conve sensitity in TSL / NORM xy,z NA not applicable or not measured Calibration is Performed According to the Following Standards: a) IEEE Std 1528—2013, "IEEE Recommended Practice for Determining the Peak Spatial— Averaged Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques®, June 2013 b) 1EC 62200—1, ‘Measurementprocedure for the assessment of Specific Absorption Rate (SAR) from hand—held and body—mounted devices used next to the ear (frequency range of 300 MHz to 6 GHz)*, July 2016 c) 1EC 62209—2, *Procedure to determine the Specific Absorption Rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz)°, March 2010 d) KDB 865664, "SAR Measurement Requirements for 100 MHz to 6 GHz" Additional Documentation: €) DASY4/5 System Handbook Methods Applied and Interpretation of Parameters: * Measurement Conditions: Further details are available from the Validation Report at the end of the certificate. All figures stated in the certificate are valid at the frequency indicated. * Antenna Parameters with TSL: The dipole is mounted with the spacer to position its feed point exactly below the center marking of the flat phantom section, with the arms oriented parallel t the body axis. * Feed Point Impedance and Return Loss: These parameters are measured with the dipole positioned under the liquid filed phantom. The impedance stated is transformed from the measurement at the SMA connector to the feed point. The Retum Loss ensures low reflected power. No uncertainty required. + Electrical Delay: One—way delay between the SMA connector and the antenna feed point. No uncertainty required. * SAR measured: SAR measured at the stated antenna input power. * SAR normalized: SAR as measured, normalized to an input power of 1 W at the antenna connector. + SAR for nominal TSL parameters: The measured TSL parameters are used to calculate the nominal SAR result The reported uncertainty of measurementis stated as the standard uncertainty of measurement multiplied by the coverage factor k=2, which for a normal distrbution corresponds to a coverage probabilty of approximately 95%. Ceriicate No: Dt7sov2—1122.Jute Page zo8

Measurement Conditions DASY system configuration, as far as not iven on page 1. DASY Version DASY5 V52.10.1 Extrapolation Advanced Extrapolation Phantom Modular Flat Phantom Distance Dipole Center — TSL 10 mm with Spacer Zoom Scan Resolution dx, dy, dz =5 mm Frequency 1750 MHz &1 MHz Head TSL parameters The following parameters and calculations were applied. Temperature Permittivity Conductivity Nominal Head TSL parameters 22.0 °C 40.1 1.37 mho/m Measured Head TSL parameters (22.0 £0.2) °C 39.0 +6 % 1.34 mho/m + 6 % Head TSL temperature change during test <0.5 °C SAR result with Head TSL SAR averaged over 1 cm° (1 g) of Head TSL Condition SAR measured 250 mW input power 8.98 W/kg SAR for nominal Head TSL parameters normalized to 1W 36.2 W/kg + 17.0 % (k=2) SAR averaged over 10 cm* (10 g) of Head TSL condition SAR measured 250 mW input power 4.74 Wikg SAR for nominal Head TSL parameters normalized to 1W 19.1 Wikg * 16.5 %(k=2) Body TSL parameters The following parameters and calculations were applied. Temperature Permittivity Conductivity Nominal Body TSL parameters 22.0 °C 53.4 1.49 mho/m Measured Body TSL parameters (22.0 + 0.2) °C 53.7 + 6 % 1.46 mho/m + 6 % Body TSL temperature change during test <0.5 °C SAR result with Body TSL SAR averaged over 1 cm‘ (1 g) of Body TSL Condition SAR measured 250 mW input power 8.94 W/kg SAR for nominal Body TSL parameters normalized to 1W 36.3 W/kg + 17.0 % (k=2) SAR averaged over 10 cm* (10 g) of Body TSL condition SAR measured 250 mW input power 4.78 Wikg SAR for nominal Body TSL parameters normalized to 1W 19.3 W/kg * 16.5 % (k=2) Certificate No: D1750V2—1122_Jul18 Page 3 of 8

Appendix (Additional assessments outside the scope of SCS 0108) Antenna Parameters with Head TSL Impedance, transformed to feed point 51.8 Q — 0.5 jQ Return Loss — 34.9 dB Antenna Parameters with Body TSL Impedance, transformed to feed point 48.2 Q + 0.5 jQ Return Loss — 34.3 dB General Antenna Parameters and Design Electrical Delay (one direction) 1.219 ns After long term use with 100W radiated power, only a slight warming of the dipole nearthe feedpoint can be measured. The dipole is made of standard semirigid coaxial cable. The center conductor of the feeding line is directly connected to the second arm of the dipole. The antenna is therefore short—circuited for DC—signals. On some of the dipoles, small end caps are added to the dipole arms in orderto improve matching when loaded according to the position as explained in the "Measurement Conditions" paragraph. The SAR data are not affected by this change. The overall dipole length is still according to the Standard. No excessive force must be applied to the dipole arms, because they might bend or the soldered connections near the feedpoint may be damaged. Additional EUT Data Manufactured by SPEAG Manufactured on November 12, 2013 Certificate No: D1750V2—1122_Jul18 Page 4 of 8

DASYS Validation Report for Head TSL Date: 20.07.2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 1750 MHz; Type: D1750V2; Serial: D1750V2 — SN:1122 Communication System: UID 0 — CW; Frequeney: 1750 MHz Mediumparameters used:f= 1750 MHz; a = 1.34 $/m; e = 39; p = 1000 ke/m® Phantom section: Flat Section Measurement Standard: DASYS (IEEETEC/ANSI C63.19—2011) DASY32 Configuration: * Probe: EX3DV4 — SN7349; ConvF(®.5, $.5, 8.5) @ 1750 MHz: Calibrated: 30.12.2017 Sensor—Surface: 1 4mm (Mechanical Surface Detection) Electronics: DAE4 Sn601; Calibrated: 26.10.2017 Phantom: Flat Phantom 5.0 (front); Type: QD 000 PSO AA; Seri 001 DASY52 52.10.1(1476); SEMCAD X 14.6.1 1(430) Dipole Calibration for Head Tissue/Pin=250 mW, d=10mm/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=Smm, dy=3mm, Reference Value = 106.3 V/m; Power Drift Peak SAR (extrapolated) = 16.4 W/ke SARCT g) =8.98 W/ke: SARCIO a) =4.74 We Maximum value of SAR (measured) = 13.8 Wkg «n 0 ~£.00 12.00 15.00 ~20.00 0 dB = 13.8 Wike= 11.40 dBWAg CoriicateNo: D17s0v2—1122.Juite Page S ot8

Impedance Measurement Plot for Head TSL tle Yew Chareel Suzeo Calraten Trace Scole Marier Sptem_ Wedow tb 51 765 C —509 83 r 18 048 mU 15 828 ostage i n ow1 s ome — sue i stom ove S 5 R50000 CzZ 7 ob —af @71 se mm m se se lome io w Lonagels Th snn isamure —— To rearve Sime on crror Ody us Certicate No: t7sov2—1122.Juire Page 6ot

DASYS Validation Report for Body TSL Date: 20.07.2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 1750 MHz; Type: D17S0V2; Serial: D1750V2 — SN:1122 Communication System: UID 0 — CW; Frequeney: 1750 MHz Medium parameters used: f= 1750 MHz; a = 1.46 $/m; 6 = 53.7; p = 1000 ke/m‘ Phantom section: Flat Section Measurement Standard: DASYS (IEEETEC/ANSI C63.19—2011) DASY52 Configuration: + Probe: EX3DV4 — SN7349; ConvF(®.35, 8.35, 8.35) @ 1750MHz:; Calibrated: 30.12.2017 * Sensor—Surface: 1.4mm(Mechanical Surface Detection) * Electronics: DAE4 Sn601; Calibrated: 26.10.2017 * Phantom: Flat Phantom 5.0 (back); Type: QD 000 P50 AA: Serial: 1002 + DASY52 52.10.1(1476); SEMCAD X 14.6.11(7439) Dipole Calibration for Body Tissue/Pin=250 mWd=10mm/Zoom Sean (7x7x7)/Cube 0: Measurement grid: dx=Smm, dy=Smm, d Reference Value = 101.7 V/m; Power Drift Peak SAR (extrapolated) = 15.7 Whkg SARCT g) =8.94 Wikg: SARCIO g) =4.78 We Maximum value of SAR (measured) = 13.5 Wkg aB o 12.00 16.00 —20.00 0 dB = 135 Wikg = 11.30dBWAkg Ceriicate No: D1750v2—1122.Jutte Page o8

Impedance Measurement Plot for Body TSL the Wew thamel Serrp Calbraton Trce Sale Maler Sisten Wndon ttlo 1760000 GHz 48 17 42 396 pH 466 17 mQ 1750000 Giz 19 ontauge is n se1 ssom ane — ue i asomone foss ' 1 150000 Cz —3p 319 06 s bm se mm iss sn ism om sw 8. mssz — o mogon se on _jcime npare e Corticate No: D170v2—1122.Juite Page 8 ot 8

Calibration Laboratory of Schmid chmi & Part ariner ii i S Service suiss wlétalonnage Engineering AG iess 5. sestivssimee t iawe Zoughousstiasse 3, 6004 zurch, Suiterand Zew "ikins . siiss Caltraton Service Accrudtedby e Sniss Accrdtaton Sevice (GAS) Aceredtation No: SCS 0108 ‘Tre Snise Accreditation Srvice i one ofhesignatoriesto he EA Mutlatral Agreementforthe recognton ofcaltraton coniicatos ciex Onetech (Dymstec) Ceniicu : D1950V3—1156_Ju18 |CALIBRATION CERTIFICATE Otiect D1950V3 — SN:1156 Cattratonprocedur(s) OA CAL—O5v10 Calibration procedure for dipole validation kis above 700 MHz Catraion ca July 24, 2018 ‘iscaieatoncertfcate ocuments h taceabity o natoralsardart, wich reatze e stnica unt of measirements 50 ‘Te meassromans and o uncenaates vih contdence robabay are gvan on t fotoing pagesand ar pr o ie cottcare Alcaivatonshave beon conducto in e cose lavorar fnity ervronmentlepratre 22 2 3)C and humisty «70ne Caltraton Equpment used (MATEerteat catirato) poman, Stardurts o« C Date (Contca No) Screded Caitraton Fosermaw Nip sn rore dercers io 217eeraceers Kore Ponersenso RP:291 sn rosese oetgers io. arrceera Aoeis Povrsenso NP:291 on tosees oercets io. arrcesrg Aots Retence 20 c0 Atorcate sn sose oo ortpers io. arrceseo sere ‘Tipe8 mamachcontinaton sn sorr2/oeaer obpere (io. rrresn Agors Reterrce Prve E0e sn ree 0w17 i treee.bectr Doeis oaee s eor 017 ts pazteo_catn) ocre Secondar Standards o« Cresk Date (nouse) scredued Gteck Posenawe Eoiasoh s aaarorer orown8 ntowecten on 19 Inhounecheck ox—to Povesersc P B48tA en ussreserss or0c8 (ntowectexc 019 inhousecnecc Octr8 Poner senso P Batta en natosentt oroceis (ntowectescOcrt9 innousechec Oct18 AF gereaiornas surcs sn 1o0ure 1818 (n houe cteck Oct16) Inhousectecc Oce18 Networ Anazr Agiers EsaseA sn.userodoer? arkartaintownecteck Oe Inhousectec Oct Name Furcion Sqmme Catbatsd y nonasote LiborierTecrican 5 %fi Acorovr waiPotorc Teciicaiiarager /c//@ tesues Juy 2« 2018 "is cattatoncortfcateshalnot e rerodvcnd axcct n ulwthout wite approval o e atortoy Ceniicare No: D19s0v3—1156.Jute Page t ot

Calibration r Laboratory of 5. Setwelzerichor Katierconst Schmid & Partner g Serven suimsetilonnage Engineering AG Senvito svizersdi ortun Zoughausstraase 43, 0004 2urchSuitzerand 5.. swias CattratonSerice Accrudted ty he Smss Accrestaton Serice (SAG) Aeeredtation No: SCS 0108 ‘The Swiss Accredtaton Sevice i one ofthe signatesto the EA Mutlatral Agreerienttorthe recogntion ofcaltraton certicaies Glossary: TSL tissue simulating liquid ConvF sensitivity in TSL / NORM xy,z N/A not applicable or not measured Calibration is Performed According to the Following Standards: a) IEEE Std 1528—2013, "IEEE Recommended Practicefor Determining the Peak Spatial Averaged Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques®, June 2018 b) 1EC 62209—1, *Measurementprocedure for the assessment of Specific Absorption Rate (SAR) from hand—held and body—mounted devices used next to the ear (frequency range of 300 MHz to 6 GHz)*, July 2016 ©) EC 62209—2, ‘Procedure to determine the Specific Absorption Rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz)*, March 2010 d) KDB 865664, "SAR Measurement Requirements for 100 MHz to 6 GHz" Additional Documentation: e) DASY4/5System Handbook Methods Applied and Interpretation of Parameters: * Measurement Conditions: Further details are available from the Validation Report at the end of the certficate. Allfigures stated in the certificate are valid at the frequency incicated. * Antenina Parameters with TSL: The dipole is mounted with the spacer to position its feed point exactly below the center marking of the flat phantom section, with the arms oriented parallel to the body axis. * Feed Point Impedance and Return Loss: These parameters are measured with the dipole positioned under the liquid filed phantom. The impedance stated is transformed from the measurement at the SMA connector to the feed point. The Retum Loss ensures low reflected power. No uncertainty required. * Electrical Delay: One—way delay between the SMA connector and the antenna teed point. No uncertainty required. * SAR measured: SAR measured at the stated antenna input power. * SAR normalized: SAR as measured, normalized to an input power of 1 W at the antenna connector. + SAR for nominal TSL parameters: 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 multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probabilty of approximately 95%. Ceriicate No: ©19s0v3—1158.Juite Page 208

Measurement Conditions DASY system configuration, as far as not g iven on page 1. DASY Version DASY5 V52.10.1 Extrapolation Advanced Extrapolation Phantom Modular Flat Phantom Distance Dipole Center — TSL 10 mm with Spacer Zoom Scan Resolution dx, dy, dz =5 mm Frequency 1950 MHz + 1 MHz Head TSL parameters The following parameters and calculations were applied. Temperature Permittivity Conductivity Nominal Head TSL parameters 22.0 °C 40.0 1.40 mho/m Measured Head TSL parameters (22.0 £0.2) °C 39.7 +6 % 1.39 mho/m + 6 % Head TSL temperature change during test <0.5 °C SAR result with Head TSL SAR averaged over 1 cm* (1 g) of Head TSL Condition SAR measured 250 mW input power 10.3 W/kg SAR for nominal Head TSL parameters normalized to 1W 41.3 Wikg + 17.0 % (k=2) SAR averaged over 10 cm* (10 g) of Head TSL condition SAR measured 250 mW input power 5.38 W/kg SAR for nominal Head TSL parameters normalized to 1W 21.6 Wikg + 16.5 % (k=2) Body TSL parameters The following parameters and calculations were applied. Temperature Permittivity Conductivity Nominal Body TSL parameters 22.0 °C 53.3 1.52 mho/m Measured Body TSL parameters (22.0 + 0.2) °C 54.2 26 % 1.50 mho/m + 6 % Body TSL temperature change during test <0.5 °C SAR result with Body TSL SAR averaged over 1 cm* (1 g) of Body TSL Condition SAR measured 250 mW input power 9.78 W/kg SAR for nominal Body TSL parameters normalized to 1W 39.6 W/kg + 17.0 % (k=2) SAR averaged over 10 cm‘ (10 g) of Body TSL condition SAR measured 250 mW input power 5.16 W/kg SAR for nominal Body TSL parameters normalized to 1W 20.8 Wikg + 16.5 % (k=2) Certificate No: D1950V3—1156_Jul18 Page 3 of 8

Appendix (Additional assessments outside the scope of SCS 0108) Antenna Parameters with Head TSL Impedance, transformed to feed point 49.4 Q — 2.1 jQ Return Loss — 33.3 dB Antenna Parameters with Body TSL Impedance, transformed to feed point 44.4 Q — 1.3 jQ Return Loss — 24.3 dB General Antenna Parameters and Design Electrical Delay (one direction) 1.198 ns After long term use with 100W radiated power, only a slight warming of the dipole near the feedpoint can be measured. The dipole is made of standard semirigid coaxial cable. The center conductor of the feeding line is directly connected to the second arm of the dipole. The antenna is therefore short—circuited for DC—signals. On some of the dipoles, small end caps are added to the dipole arms in orderto improve matching when loaded according to the position as explained in the "Measurement Conditions" paragraph. The SAR data are not affected by this change. The overall dipole length is still according to the Standard. No excessive force must be applied to the dipole arms, because they might bend or the soldered connections near the feedpoint may be damaged. Additional EUT Data Manufactured by SPEAG Manufactured on September 23, 2009 Certificate No: D1950V3—1156_Jul18 Page 4 of 8

DASYS Validation Report for Head TSL Date: 24.07.2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 1950 MHz; Type: D1950V3; Serial: D1950V3 — SN:1156 Communication System: UID 0 — CW; Frequency: 1950 MHz Medium parameters used: 1950MH; a = 1.39 $/m; e = 39.7; p = 1000 ke/m® Phantom section: Flat Section Measurement Standard: DASYS (IEEETEC/ANSI C63.19—201 1) DASY52 Configuration: * Probe: EX3DV4 — SN7349; ConvF(8.15, 8.15, 8.15) @ 1950MHz; Calibrated: 30.12.2017 + Sensor—Surface: 1.4mm(Mechanical Surface Detection) Electronies: DAE4 Sn601; Calibrated: 26.10.2017 Phantom: Flat Phantom 5.0 (front); Type: QD 000 PSO AA; Serial: 1001 DASY52 52.10.1(1476); SEMCAD X 14.6.11(7430) Dipole Calibration for Head Tissue/Pin=250 mW, d=10mm/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=Smm, dy=Smm, de=Smm Reference Value = 112.5 V/m; Power Drift —0.02 dB Peak SAR (extrapolated) = 18.8 W/kg SAR(I g) = 10.3 Whkgs SARCIO g) 538 We Maximum value of SAR (measured) 7 Whe 1.96 dBWhg Certicate No: D10s0v3—1158.Jutte Page S ot8

Impedance Measurement Plot for Head TSL the VMew Charel Seato Calaton Trace Scole Matar Sytom Wndon lb 1950000 G 30 606 pF 1950000 Giiz Ontauge in oi1 row ane y 2 seore 0000 sw w Loxuage l Tise ism ue To comue Ceniicate No: D19s0v3—1158.Jutte Page 6ot 8

DASY5 Validation Report for Body TSL Date: 24,07.2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 1950 MH; Type: D1950V3; Serial: D1950V3 — SN:1156 Communication System: UID 0 — CW; Frequency: 1950 MHz Mediumparameters used: f= 1950 MHz; & = 1.5 S/m; e, = 54.2; p = 1000 ke/m} Phantomsection: Flat Section Measurement Standard: DASYS (IEEEAEC/ANSI C63,19—2011) DASY52 Configuration: * Probe: EX3DV4 — SN7349; ConvF(8.29, 8.29, 8.29) @ 1950 MHz: Calibrated: 30.12.2017 Sensor—Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn601; Calibrated: 26.10.2017 Phantom: Flat Phantom5.0 (back); Type: QD 000 PSO AA; Serial: 1002 DASY52 52.10.1(1476); SEMCAD X 14.6.11(7430) Dipole Calibration for Body Tissue/Pin=250 mWd=10mm/Zcom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=Smm, de=5mm Reference Value 104.2 V/m; Power Drift =—0.09 dB Peak SAR (extrapolated) = 17.1 W/ke SARCI g) =9.78 W/kg: SAR(1O g) = 5.16 We Maximum value of SAR (measured) = 14.6 Whkg « (aw an [iem \am 0 dB = 14.6 Wikg= 11.64 dBWikg Ceriicate No: D19sova—1158.Jute Page 7 ot8

Impedance Measurement Plot for Body TSL tle Uew Chamel Serep Calatin Dace Scale Myier Sptem Wndow tb 1950000 GHz 62 188 pF —13124 0 1950000 GHz 60 768 mU 165 98 ° ontang» is i1 nom on — w a s one 1 50000 Oiiz 2p 520 06 in meeim ure ~— To cmmave Sime oi crro Arge20Ddy Ceriicate No: Dr9sova—1156_Juite Pageot

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Calibration Laboratory of g. Senizeiscnar Kaitrintanst Schmid & Partner g Servce suise tiomane Engineering AG Senvilo szzereataaurs itogpiossvanse i3 8004 tarch, Setariang . suiesCattraton Senice Accstes t ne Suss Accusaton Sevce ($A8) Aceredtatono: SCS 0108 Te Swise Accrostatn Sarvice in oneofthe mutiairt Agroamontforha recognttonofcatbraton crifentes ce« ‘Onétech (Dymstec) Ciifeaiene: OCP—DAK3.5—1140_Novt8 |CALIBRATION CERTIFICATE ons biicas=sN:ta0 Catnatonpccessen) oxcacease Caltbration of dielectrc parameter probes. Catraton se November 20; 2018 Th cattatn cnfet documens n tacensy t ratons stcis unc eaie e phyuca unds o memzemens 30 Te meassemensant ho uncetes ui cortderce prooaat are en on h olowng sagesand m pao e cotfcae Adcaltators rav boncontutn it lcsn wllcity anvroement lenporare 2 3 and rumity «701. Cateaton Eavement es (MATE ertcito caitaton Pamay Surgue _jo# woue a_ _] oc oas megrien su e soais ocrowas iecarn | Seconday Sudats |o« | ares oae inteuse | sernsues creck Rovse & Scmare 2067 Tom 16in—18 (nowme e in19 ns Dota memeneerorimow |avis mhumers oneasewoyte napte wevarei s o te saco stomnss ot18 etie cpenes cneck M19 worto Hess teve, resuie mosteo o6At8 in rome cvec vay19 |nrts 0 t mt Nacissuson ty ears sznrszeo j18 tn rse crecs ty10 napts 008 not tacisoutn noust i 18 t ho ctec y0 Mayo Hea o. stacnuneasa |1soro o6ain 18 trumecrece uy 1 d Enscrnus wori otu18 in uw check M19 wayto Name Fueioo Catemsty Cisstamie Uateminy Tecmisan Apoominy rampsoe Teivilcaitirager M hint Noventer2,2018 Ti uio contea shtno se mpatient mcetn l ibout ie acpove o he avontoy Cenate No: 0CP.OAG $—1140.Novte Page 1 ot 13

Calibration f Laboratory of . Sevvoizenscher Kaiientont Schmid & Partner . Seniceminsecttinonage Engineering AG Servio sviezeri arsurs (eogniussvasse 43, 8004 2urch, Sutriand .. Sviss CatbratenSerice Actestedby e Suss Accrustton Srvce (BA8) Accrestaion to: SCS 0108 ‘he Swias Accrestaton Servie i one ofthesigatores t h EA MastaneasAgreoment for h ecogntion o cattraton cericaten References [1] 1€EE Sid 1820—2013,"EEE Recommended Practice for Determining the Peak Spatia—Averaged Specific Absorption Rate (SAR)in the Human Head from Wireless Communications Devices: Measurement Techniques®, June 2013 [2] 120C 62200—1, Measurement procedure for the assessment of Speciic Absorption Rate (SAR) from hand—held and body—mounted devices used next to the ear (freguency range of 300 Niz to 6 GHz), Juy 2016 (3] 12C 62209—2 Ed.1, "Human Exposure to Racio Frequency Fields from Handheld and Body—Mounted Wireless Communication Devices — Human models, Instrumentation, and Procedures Part 2: Procedure to determine the speciic absorption rate (SAR) for moble wreless communication devices used in close proximily tothe human body (requency range of 30 MHz to 6 GHHz)®, March 2010 4) A. P. Gregory and R. N. Clarke, "NPL Report MAT 23°, January 2012 Tables ofthe Complex Permitiity of Dielectric Reference Liquids at Frequencies up to 5 GHz (5] DAK Professional Handbook, SPEAG, September 2018 (6] A. Toropainen et al, Method for accurate measurement of complex permitly of tissue equivalent Hiquids*,Electronics Letters 36 (1) 2000 pp32—34 [7) J. Hiland, "Simple sensor systom for measuring the dielectrc properties of salne solutions*, Meas: Sei. Technol. 8 pp901—910 (1997) (8] K. Nortemann, J. Hiland and U. Kaatze, "Dielectic Properties of Aqueous NaCSolutions at Microwave Frequencies",J. Phys. Chem. A 101 pp6864—0009 (1997) [8] R. Buchner, G. T. Hefter and Peter M. May, "Dielectrc Relaxation of Aqueous NC Solutions",J Phys. Chem. A 103 (1) (1999) Description of the dielectric probe Dielectic probes are used to measure the dielectic parameters of tssue simulating media in a wide frequency range. The complex permitiviy a,‘= (¢/ee)— (eee) is determined from the S parameters measured with a vector network analyzer (VNA) with software specifc to the probe type. The parameters of nterest e.9.in standards [1,2, 3] and for other applications are presented are calculated as follows: (Relative) permitiviy c(real part of c‘= (¢/es) — (eTcs) where «o = 8.854 pFim is the permitty in free space) Conductiviy 0 = 2 m f¢" oo Loss Tangent = (th) The OGP (open ended coaxiais a cut off section of 50 Ohm transmission iine, similar to the system described in [1, 2, 3, Sused for contact measurement The materiais measured either by touching the probe to the surface of a sold/gelly or by immersing itinto a liquid media, The electromagnetic felds at the probe end fringe io the material to be measured, and its parameters are determined from the change of the S1: parameters. Wih larger diameter of the dielectris, the probe can be used down to lower frequencies. The flange surrounding the active area shapes the near feld similarto a sem—infnite geomety and is inserted fuly into the measured lossy lquid. Cenfcate No: 0CP.OAKG $—1140.Novte Page2ot 13

The probe is connected with a phase and amplitude stable cable to a VNA which is then calibrated with Open, Short and a Liquid with well—known parameters. All parts in the setup influencing the amplitude and phase of the signal are important and shall remain stable. Handling of the item Before usage, the active probe area has to be cleaned from any material residuals potentially contaminating the reference standards. The metal and dielectric surface must be protected to keep the precision of the critical mechanical dimensions. The connector and cable quality are critical; any movements between calibration and measurement shall be avoided. The temperature must be stable and must not differ from the material temperature. Methods Applied and Interpretation of Parameters The calibration of the dielectric probe system is done in the steps described below for the desired frequency range and calibration package (SAR/MRI! liquids, Semi—solid/solid material). Because the standard calibration in step 3 is critical for the results in steps 4 to 8, the sequence 3 to 8 is repeated 3 times. As a result, the result from these 3 sets is represented. 1. Configuration and mechanical / optical status. 2. Measurement resolution is 5 MHz from 10 to 300 MHz, 50 MHz from 300 to 6000 MHz and 250 MHz from 6 to 20 GHz. 3. Standard calibration uses Air / Short / Liquid. 1 liter liquid quantity is used to reduce the influence the reflections. The liquid type is selected depending on the lowest frequency and probe diameter: DAK—1.2, DAK—3.5, Agilent OCP: de—ionized water (approx. 22 °C) DAK—12: saline solution with static conductivity 1 S/m (approx. 22 °C) NPL OCP: pure ethanol (approx. 22 °C) 4. The cable used in the setup stays in a fixed position, i.e. the probe is fixed and measuring from the top in an angle of typ. 20° from the vertical axis. For DAK and Agilent probes, the refresh function (air standard) is used previous to the individual measurements in order to compensate for possible deviations from cable movements. After insertion of the probe into a liquid, the possible air bubbles are removed from the active surface. 5.. Measurement of multiple shorts if not already available from the calibration in the previous step (NPL). Evaluation of the deviation from the previous calibration short with graphical representation of the complex quantities and magnitude over the frequency range. Probe specific short is used. This assessment shows ability to define a short circuit at the end of the probe for the VNA calibration in the setup which is essential at high frequencies and depends on the probe surface quality. 6. Measurement of validation liquids in a quantity of 1 liter at well defined temperature. Evaluation of the deviations from the target. The targets base on traceable data from reference sources. The deviation of the measurementis graphically presented for permittivity and conductivity (for lossy liquids) or loss tangent(for low losses at low frequencies). 7. Measurement of lossy liquids in a quantity of 1 liter at well defined temperature. Head tissue simulating liquid or saline solution with 0.5 S/m static conductivity are representative. The target data base on traceable data from reference sources or from multiple measurements with precision reference probes or different evaluations such as transmission line or slotted line methods. Evaluation of the deviation from the target and graphical representation for permittivity and conductivity over the frequency range 8. Semi—solid / solid material calibration: Measurements of an elastic lossy broadband semi—solid gel with parameters close to the head tissue target. Measurements of a planar very low loss solid microwave—substrate. The average of 4 measurements of the same sample at different location is shown as a single result. The deviation of the permittivity and conductivity from the reference data is evaluated. Measurements of a planar very low loss solid microwave—substrate. The average of 4 measurements of the same sample at different location is shown as a single result. The relative deviation of the permittivity and the absolute deviation of the loss tangent is evaluated. The targets base on multiple measurements (on the same material batch at identical temperature) on convex and planar surfaces with precision reference OCP. Certificate No: OCP—DAK3.5—1140_Nov18 Page 3 of 13

The measurement on semi—solid / solid materials is sensitive to the quality and planarity of the probe contact area, such as air gaps due to imperfect probes (resulting lower permittivity values). Table for the probe uncertainty: The uncertainty of the probe depending on probe type, size, material parameter range and frequency is given in a table. It represents the best measurement capability of the specific probe but does not include the material (deviation from the target values). 10. Appendix with detailed results of all measurements with the uncertainties for the specific measurement. In addition to the probe uncertainty (see above), it includes the uncertainty of the reference material used for the measurement. A set of results from independent calibrations represents the capability of the setup and the lossy materials used, including the precision of the measured material and the influence of temperature deviations. Temperature and operator influence was minimized and gives a good indication of the achievable repeatability of a measurement. 11. Summary assessment of the measured deviations and detailed comments if not typical for the probe type. Dielectric probe identification and configuration data Item description Probe type OCP Open—ended coaxial probe Probe name SPEAG Dielectric Assessment Kit DAK—3.5 Type No SM DAK 040 CA Serial No 1140 Description Open—ended coaxial probe with flange Flange diameter: 19.0 mm Dielectric diameter: 3.5 mm Material: stainless steel Connector 1 PC 3.5 pos. Software version DAK Measurement Solver 2.4.1.144 Calibration Type: Air / short / water (set to measured water temp.) Probe type: "DAK3.5" (software setting) Further settings VNA bandwidth setting: 50 Hz SCS 0108 Accessories used for customer probe calibration Cable Huber & Suhner Sucoflex 404, SN: 4361, length 1 m, PC3.5 neg. — PC3.5 neg. Short DAK—3.5 shorting block, type SM DAK 200 BA Contact area covered with cleaned Cu stripe Additional items used during measurements Adapter 1 PC3.5 pos. — PC1.85 (VNA side) Adapter 2 PC3.5 pos. — PC3.5 neg. (probe side) Notes Before the calibration, the connectors of the probe and cable were inspected and cleaned. Probe visual inspection: according to requirements Short inspection: according to the requirements Certificate No: OCP—DAK3.5—1140_Nov18 Page 4 of 13

Probe Uncertainty The following tables provide material and frequency specific uncertainties (k=2) for the dielectric probe. The values in the tables represent the measurement capability for the probe when measuring a material in the indicated parameter range. They include all uncertainties of e probe system possible systematic errors due to the design o calibration e temperature differences during the calibration and measurements, as described, e VNA noise Apart from the material used for the calibration (de—ionized water), material uncertainties of the reference materials used during the measurement in Appendix A are not included in these tables. DAK—3.5 Permittivity range Frequency range (sigma / LT range) Une. (k=2) 1—15 10 MHz — 20 MHz 20 MHz — 200 MHz ——— 200 MHz — 3 GHz LT <0.41 2.0% 3 GHz — 6 GHz LT <0.1 2.0% 6 GHz — 20 GHz LT <0.1 2.1% 10 — 40 10 MHz — 20 MHz 20 MHz — 200 MHz ——— 200 MHz — 3 GHz sigma : 1 — 10 S/m 1.8% 3 GHz — 6 GHz sigma : 1 — 10 S/m 2.3% 6 GHz — 20 GHz sigma > 10 S/m 3.4% 35— 100 10 MHz — 20 MHz 20 MHz — 200 MHz 200 MHz — 3 GHz sigma : 1 — 10 S/m 1.7% 3 GHz — 6 GHz sigma : 1 — 10 S/m 1.9% 6 GHz — 20 GHz sigma > 10 S/m 2.4% Conductivity range (S/m) Frequency range (epsilon / LT range) Unc. (k=2) 1—10 10 MHz — 20 MHz 20 MHz — 200 MHz ——— 200 MHz — 3 GHz eps : 35 — 100 2.1% 3 GHz — 6 GHz eps : 35 — 100 3.0% 6 GHz — 20 GHz eps : 10 — 40 3.0% Loss tangent range Frequency range (epsilon / LT range) Une. (k=2) <0.1 10 MHz — 20 MHz ——— 20 MHz — 200 MHz 200 MHz — 3 GHz eps : 1—15 0.03 3 GHz — 6 GHz eps : 1 — 15 0.03 6 GHz — 20 GHz eps : 1 — 15 0.03 Certificate No: OCP—DAK3.5—1140_Nov18 Page 5 of 13

Calibration Results Uncertainty limits (k=2) for the material measurements in the figures of Appendix A are represented with red dashed lines. These uncertainties contain — in addition to probe uncertainty — the uncertainty of the material target parameter determination. The measurements show the results obtained from independent calibrations for the same material. The differences between the individual measurement curves give therefore an indication for the obtainable repeatability and shall lie within the uncertainties stated in the tables. Materials for DAK—3.5 calibration: Appendix A with curves for Methanol, HBBL, and 0.05 mol/L. NaCl solution (200 MHz — 6 GHz, optional 20 GHz), HS gel and low loss solid substrate are optional. Certificate No: OCP—DAK3.5—1140_Nov18 Page 6 of 13

Appendix A: Detailed Results (additional assessments outside the scope of SCS0108) A1 Probe appearance and calibration sequence A.1.1 Appearance The OCP appearance is fully according to the expectations: = the flange surface is intact A.1.2 Calibration sequence The following sequence was repeated 3 times in the low frequency range from 200 — 300 MHz in 5 MHz steps and in the high frequency range from 300 to 6000 MHz in 50 MHz steps, and from 6 GHz to 20 GHz in 250 MHz steps. = Air «_ Short 1 short, then immediate verification with a second short (with eventual repetition) = Water De—ionized water, temperature measured and set in the software (for DAK—12 0.1 mol/L saline solution, temperature measured and set in the software) «_ Methanol Pure methanol, temperature measured and set in the software «_ Liquids Measurement of further liquids (e.g. Head tissue simulating liquid and 0.05 mol/l saline) * Cleaning Probe washed with water and isopropanol at the end of the sequence. «_ Shorts 4 additional separate short measurements to determine the deviation from the original * Refresh Refresh with Air = Solid 4 separate solid low loss planar substrate measurements to determine one average (optional) * Semisolid 4 separate head gel measurements on fresh intact surface to determine one average (optional) = Cleaning Probe washed with water and isopropanol at the end of the sequence Evaluation of the additional shorts from the calibrated (ideal) short point at the left edge of the Smith Chart, represented as magnitude over the frequency range (fig. 2.1.x) and in polar representation (fig. 2.2.%). Evaluation of the Liquid measurements and representation of the permittivity and conductivity deviation from their reference data at the measurement temperature. The results of each of the 3 calibrations is shown in the appendix for each material (fig. 3ff) in black, red, blue. The red dashed line shows the uncertainty of the reference material parameter determination. Evaluation of the Semisolid measurements (optional) by representing the 3 average deviations (each resulting from the 4 separate measurements per set), equivalent to the liquid measurement. Representation of the permittivity and conductivity deviation from their reference data at the nominal temperature. Evaluation of the Solid measurements (optional) by representing the 3 average deviations (each resulting from the 4 separate measurements per set), equivalent to the liquid measurement. Representation of the permittivity deviation from their reference data and the loss tangent at the nominal temperature. Certificate No: OCP—DAK3.5—1140_Nov18 Page 7 of 13

A2— Short residual magnitudes Affer each ofthe 3 caltrations with a single short (as per the DAK software), 4 addiional separate, short measurements were performed aftethe liquid measurements and evaluated from the 11 data. The residuals in the graphs represent the deviation from the ideal short pointon the polar representation on the VNA screen. Fig. 210 Magnitude ofthe residual ofthe shorts, 200 MHz —— 20 GHiz, ater calioation a) pl—Ipledelalcladalnhal 1 Fig. 2 19 Magnitude of the residual of the shorts, 200 MHz —— 20 GHiz, ater caltoration b) pr|ocpec———<———<——— Fig. 2.1© Magnitude of the residual of the shorts, 200 MHz—— 20 GHz, ater calloration c) Certfcate No: OCP.DaK3 1140Novt Page e of 10

Fig. 2.20—c Complex representation of the residuals ofthe shorts, 200 MHiz 20 GHz, after caibrations a)—b) in the top and c)i the bottom All shorts have good qualty. Some minor deviations might be visible from contact quality (eft — ight) Certca No: 0CP.OA@5—1140.Norte Page aot 19

A3 Methano! Methanol (99.9% pure) was measured at a temperature of 22 +/ 2 °C. The liquid temperature was stabilized within 0.05 °C of the desied temperature. Deviations are presented relative tothe nominal material parameters atthis temperature, calculated from NPL data for this temperature. For the measurements the Noise Fiter was activated in the software Pemasuayseruton am | ans! Frosens on Fi.3.1 Methanol permitiviy deviaton from target, 200 Hz — 10 GHz Contvctay cevatn Ensoi Fig. 32 Methanol conductivity deviation from target, 200 Hz — 10 GHz Note: Conductity erfor can be high at low frequencies due to the low absolute conductvity values. Certcate No: 0CP.OAG 5—1140.Novte Page 10of 13

AA Head Tissue Broadband head simulating lquid was measured at a temperature of 22 +/ 2 °C. The liquid temperature was stabilzed within 0.05 °C of he desied temperature. Deviations are presented relative to the reference data for this materia. Those parameters have been evaluated from multile measurements on the used bath with precision reference OCP and further methods. For the measurements the Noise Fiter was activated in the software. Pemitayserutcn w «on | Bevatontom uon t 3 2 # I 1 > I I ) am | am! tomene on Fig. 41 HBBL permitity deviation from target, 200 Mz — 20 GHHz Contvetiy sevaten wos beratortonunetts 5 am ars Franey ons Fig. 42 HBBL conductiity deviation from target, 200 MHz — 20 GHz Certicate No: 0CP.OAa—1140.Novtd Page 11 o 12

AS— 0.05 moll. NaCisolution 0.05 molL. NaC/ water solution has a static conductviy of 0.5 S/m, simiarto MRI HCL (Kigh Conductviy Liquic). t was measured ata temperature of 22 +/2 °G. The lquid temperature was stabiized within 0.05 °C of the desired temperature. Devitions are presented relative to the reference data forths material These parameters have been derived from the theoretical model according to [7], matched to the measurements from reference probes and other sources A quantly of 1 lter was used for the measurement. For the measurements the Noise Fiter was actvated in the sottware. remasnaysevnton ce uw n s am ans Prsaney ons Fig. 51 0.05 mo¥L. solution permitiviy devition from target, 200 MHz — 20 GHz: Contectryserutcn 3 605 bevitontontunett) 5 ans| | Frosensy on Fig. 52 0.05 mo¥L. soltion conductiviy deviation from target, 200 MHz — 20 GHz: Ceriteate No: OcP.oaa s—1140.Novte Page 120f 13

Appendix B: Nominal parameters of reference materials used for calibration (additional assessments outside the scope of SCS0108) remiityofretrence natetas w m w —ietinot —ttwel m —* w —suire i ~m $# —res * —Muice i0 _ —siwate soca a @0b )o# o# uo oa on on Ieqserrtoud Fig.B.1 Permittvity of reference materials w Eontuatyotrtemncemteras # _1 —nettio £ —atwra #» w ii —Suize gzn ~ —res i0 —te ~sumare o s a @0 +0 ) w n w ce ow n hqureston Fig. B2 Conductiviy of reference materials i0 ton Tarsrtotreurncemateras —wetina —treo —ware —Sine $i Cz m un —re —ince —simite snn s a a 0@ r) on on ooa ow on oa Iossney o) Fig. B3 Loss tangent ofreference materials Cerifate No: OCP.OaKa —t140.Novte Page 13of 13

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