SAR Test Report Part 2

FCC ID: 2AS9T-SB52SW

RF Exposure Info

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Calibration r Laboratory of &Roa & . Sctweizeischor Kalitardanst Schmid & Partner ibsg Sarvce suiss talonnage Engineering AG 196A 5. seniseastmn im Zraghausstrasse 13 800¢ 2urich, Sutzrtand xflmg 5. swisscattration Servce Accrdtes ty ha Sss ecrustaon Servcn ($A9) secreataton io: SCS 0108 ‘Te Swiss Accreitnion Seric is one ofth ignatoies to the EA MoititertAgreementfor tha recogniton ofcabraton corticuton ciem ‘DT&C(Dymstes) ceniicuisnc: DOO0V2—10175.Jult8 CALIBRATION CERTIFICATE Oe D900V2 — SN:1d175 Calbraton pacedve(s) OA CAL—O.v10 Calbration procedure for dipole validation kits above 700 MHz Catbaton ce July 24, 2018 Ts caitaton certiatdocuments h mcnsoit torateralstandart, wich reatzn e ppicl uoi of measiremonts (5. Te measrument an ho uncariites vih confderc esnbae gven on th foowing pagesand ar pr o the contcare Alcalvatons have on condita n haclosnd adoatrfacliy: anvronment tenporsare 2a )C and humiiy «701. Caltraton Eumentused (MATE erteatocataton) Prinary Sundarts o« CalOie Conteat o) Senedded Caieaton Pover nNee sn romre oedpers i21rceeraceera Kie Pove se hm201 on toaaee otapets t 2rzzern) Koi Pove semhme291 on rams otazete ioarrezery Koere Aetonrce 20 t Atorcate sn sose 09 otzets io atzazsen Koi Typet menatch continadon |sncsorra/onier Ob—ete o. rrreese9 Apere Retenrce Pote Exaove surae trei7 (io. cr—roee.pectn Drers oaee sn cor 2sosr i. oazecot oatm cce Secontay Sundats o« crest Oe tntowse Scteduied tresk Pover mte Ervisiz8 e assraeores orocis ntomectesc 019 Intuse cce octin Poversemor hseeia sn usareseres oroci5nhowmecteOcet) inhouse chac Oc—t9 Pover somor hseata sn aroseatr Or0ets nhowecteskOce10 Inhousechecs Octn AF genemtonas suros sn roowe 18ints (n hoose cteck Oce19 Inhousechacc Oc—to Newotk Aralzer Agtet E2250A |SN: Userod0f77 ariarté (nhowsecteckOce) Inrousechecc Octto Name Furcion Spratve Catbatedb M Setz Lateratoy Techician 25‘7: & ; Apoonor wate Potovs Techca irager /@ Insuet suy 2, z018 Ts cairaton cottentshal no e repedueed excedtn ut wihout witen apornal o e aborton. Corifeate No: Deo0ve—tat75.Jute Page 1 ot8

Calibration Laboratory of . Seteizeriscter Kaitrercienst Schmid & Partner ( Seviensuisse ttalonnage Engineering AG Servio vizero ol taraten Zroghausstrasse 43, 6004 Zurich, utztand .. swiss CatteatonService Accredtadby e Suiss Accrectaton Sevice (GAS) Accredtation io: SCS 0108 ‘Te Swiss Accredtnion Soice is one ofth ignatoris to the EA Moitlterat Agroementforthe recognion of calratonconicutos Glossary: TSL tissue simulating liquid ConvF sensitivity in TSL / NORM xy,2 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) EC 62209—1, "Measurement procedure 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) 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 MHiz to 6 GHz)*, March 2010 d) KDB 865664, "SAR Measurement Requirements for 100 MHz to 6 GHz" Additional Documentation: e) DASY4/5 System Handbook Methods Applied and Interpretation of Parameters: * MeasurementConditions: Further details are available from the Validation Report at the end of the certficate. All figures stated in the certficate are vald 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 armsoriented parallel to the body axis. * Feed Point Impedance and Retun 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 Retun 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 measurement is stated as the standard uncertainty of measurement muliplled by the coverage factor k=2, which for a normal distribution corresponds to a coverage probabilly of approximately 96%. Ceriicate No: De00vz—1t75._Jute Page2ot

Measurement Conditions DASY system configuration, as far as not given on page 1. DASY Version DASY5 V52.10.1 Extrapolation Advanced Extrapolation Phantom Modular Flat Phantom Distance Dipole Center — TSL 15 mm with Spacer Zoom Scan Resolution dx, dy, dz =5 mm Frequency 900 MHz + 1 MHz Head TSL parameters The following parameters and calculations were applied. Temperature Permittivity Conductivity Nominal Head TSL parameters 22.0 °C 41.5 0.97 mho/m Measured Head TSL parameters (22.0 £0.2) °C 40.6 +6 % 0.95 mho/m + 6 % Head TSL temperature change during test <0.5 °C w««« SAR result with Head TSL SAR averaged over 1 cm‘ (1 g) of Head TSL Condition SAR measured 250 mW input power 2.65 Wikg SAR for nominal Head TSL parameters normalized to 1W 10.7 Wikg a 17.0 % (k=2) SAR averaged over 10 cm* (10 g) of Head TSL condition SAR measured 250 mW input power 1.69 Wikg SAR for nominal Head TSL parameters normalized to 1W 6.82 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 55.0 1.05 mho/m Measured Body TSL parameters (22.0 £0.2) °C 55.0 +6 % 1.01 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 2.69 W/kg SAR for nominal Body TSL parameters normalized to 1W 11.1 W/kg + 17.0 % (k=2) SAR averaged over 10 cm* (10 g) of Body TSL condition SAR measured 250 mW input power 1.75 Wikg SAR for nominal Body TSL parameters normalized to 1W 716 Wikg # 16.5 % (k=2) Certificate No: D900V2—1d175_Jul18 Page 3 of 8

Appendix (Additional assessments outside the scope of SCS 0108) Antenna Parameters with Head TSL Impedance, transformed to feed point 52.2 Q + 0.9 jQ Return Loss — 32.7 dB Antenna Parameters with Body TSL Impedance, transformed to feed point 47.0 Q — 2.7 jQ Return Loss —27.6 dB General Antenna Parameters and Design Electrical Delay (one direction) 1.410 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 order to 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 January 16, 2014 Certificate No: D900V2—1d175_Jul18 Page 4 of 8

DASY5 Validation Report for Head TSL Date: 24.07,2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 900 MHz; Type: D900V2; Serial: DO0OV2 — SN:1d175 Communication System: UID 0 — CW; Frequency: 900 MHz Medium parameters used: £=900 MHz; 0 = 0.95 S/m;e; = 40.6; p = 1000 kg/m® Phantom section Flat Section Measurement Standard: DASY5 (IEEE/TEC/ANST C63.19—2011) DASY52 Configuration: + Probe: EX3DVA — SN7349; ConvR®.71, 9.71, 9.71) @ 900 MHz; Calibrated: 30.12.2017 + Sensor—Surface: 1.4mm (Mechanical Surface Detection) + Electronics: DAE4 Sn601; Calibrated: 26.10.2017 + Phantom: Flat Phantom 4.9 (front); Type: QD 00LP49 AA; Serial: 1001 + DASY52 52.10.1(1476); SEMCAD X 14.6.11(7430) Dipole Calibration for Head Tissue/Pin=250 mW, d=15mm/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=Smm, dy=Smm. Reference Value = 64.70 V/m; Power Drift Peak SAR (extrapolated) = 4.02 Wikg SARCL g) =2.65 Wikg; SAR(1O g) = 1.69 Wikg Maximum value of SAR (measured) =3.56 Wikg Coriicate No: Dooove—1417s.Jutte Page S ore

Impedance Measurement Plot for Head TSL tie Vew Ghmal Srat Gibratin Trce wae Mater spten Wrdow tise 200000000 MHz 52185 0 180.02 pH 90480 m0 go. 000000 Mz 23154 mU 21.978° excsunoniage a — mestiie sue iroomore c> mt e > T200 fboooo 7ooue m t w coue i—= roso [= ) Pus — isso — om s sm ow A T\ < so hoO sn[cumacls nesieme — o maree Certfcate No: ooovz—10175.ur8 Page 6ot8

DASY5 Validation Report for Body TSL Date: 23.07.2018 Test Laboratory: SPEAG, Zurich, Switzerland DUT: Dipole 900 MHz; Type: D900Y2; Serial: DOOOV2 — SN:1d175 Communication System: UID 0 — CW; Frequency: 900 MHz Medium parameters used:f= 900 MHz; a= 1.01 S/m; e = 55; p = 1000 kg/m® Phantom section: Flat Section Measurement Standard: DASYS (IEEETEC/ANSI C63.19—2011) DASY52 Configuration: + Probe: EX3DY4 — SN7349; ConvBRQ9.43, 9.83, 9.83) @ 900 MHz; Calibrated: 30.12.2017 + Sensor—Surface: 1.4mm (Mechanical Surface Detection) + Electronics: DAE4 Sn601; Calibrated: 26.10.2017 + Phantom: Flat Phantom 4.9 (Back); Type: QD 00R P49 AA; Serial: 1005 + DASY52 52.10.1(1476); SEMCAD X 14.6.11(7439) Dipole Calibration for Body Tissue/Pin=250 mW, d=15mm/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=Smm, dy=Smm, d Reference Value=63.29 V/m; Power Drift Peak SAR (extrapolated) = 3.92 Wikg SAR(T g) =2.69 Wikg; SAR(IO g) = 1.75 Wike Maximum value of SAR (measured) =3.55 W/ke .50 dBWie Corlicate No: Deo0ve—16t75._Jute Page7 of8

Impedance Measurement Plot for Body TSL tie Vew Chamal Sneep Calraien Trace scae P spren Wiedon tsb 46 970 0 27015 0 41.948 mU 136 69 ° ue 1 uomore 900 90000 Mrie —2} 567 d€ cviauge in son rounnen T remoe Sm oin. SH cisor Avge200y uo. Coriicate No: D800vz—14175.Jute Page aot8

Page 31 of 38 Report No. OT-196-RWD-010 APPENDIX D: SAR TISSUE SPECIFICATIONS Measurement Procedure for Tissue verification: 1) The network analyzer and probe system were configured and calibrated. 2) The probe was immersed in the tissue. The tissue was placed in a nonmetallic container. Trapped air bubbles beneath the flange were minimized by placing the probe at a slight angle. 3) The complex admittance with respect to the probe aperture was measured. 4) The complex relative permittivity εr can be calculated from the below equation (Pournaropoulos and Misra): Table D-1 Composition of the Tissue Equivalent Matter Frequency (MHz) 900 Tissue Head Body Ingredients (% by weight) Bactericide 0.1 0.1 DGBE HEC 1 1 NaCl 1.45 0.94 Sucrose 57 44.9 Tween 20 Water 40.45 53.06 Table D-2 Recommended Tissue Dielectric Parameters EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 32 of 38 Report No. OT-196-RWD-010 Figure D-1 Liquid Height for Head & Body Position (SAM Twin Phantom) Figure D-2 Liquid Height for Body Position (ELI Phantom) EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

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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 Heas o. stacnuneasa |1soro o6iin 15 tnrowe cteck t 19 mayto Enscous wor oru18 in us cteck Map19 wayto Name Fueioo Catemsty Cisstaiie Uatemioy Tecmican Apoomany rempson Fienesimniger W 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 folows: (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 = (h) The OGP (open ended coaxia) is a cut off section of 50 Ohm transmission line, similar to the system described in [1, 2, 3, 5) used for contact measurement The materiais measured either by touching the probe to the surface of a soligelly or by immersing itnto a iquid media, The electromagnetic felds at he 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/MR! 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 Fio. 32 Methanal conductiviy deviation from target, 200 MHz — 10 itz 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 bevaten tom se t 3 P as ___ ns ZXr=_—meme_t~=s~= am ul Emssy on 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 beviton ton es i) 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 —tamwot —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

Page 34 of 38 Report No. OT-196-RWD-010 APPENDIX E: SAR SYSTEM VALIDATION Per FCC KDB Publication 865664 D02v01r02, SAR system validation status should be documented to confirm measurement accuracy. The SAR systems (including SAR probes, system components and software versions) used for this device were validated against its performance specifications prior to the SAR measurements. Reference dipoles were used with the required tissue-equivalent media for system validation, according to the procedures outlined in FCC KDB Publication 865664 D01v01r04 and IEEE 1528-2013. Since SAR probe calibrations are frequency dependent, each probe calibration point was validated at a frequency within the valid frequency range of the probe calibration point, using the system that normally operates with the probe for routine SAR measurements and according to the required tissue-equivalent media. A tabulated summary of the system validation status including the validation date(s), measurement frequencies, SAR probes and tissue dielectric parameters has been included. Table E-1 SAR System Validation Summary – 1g CW VALIDATION MOD. VALIDATION SAR Freq. Probe Probe Cal Cond. Perm. DUTY Date PROBE PROBE MOD. System (MHz) SN Point (σ) (εr) SENSITIVITY FACTO PAR LINEARITY ISOTROPY TYPE R 4 750 2019.03.04 3832 750 Head 0.898 42.449 Pass Pass Pass N/A N/A N/A 4 900 2019.03.09 3832 900 Head 0.972 42.118 Pass Pass Pass GMSK PASS N/A 4 1750 2019.03.06 3832 1750 Head 1.342 39.217 Pass Pass Pass N/A N/A N/A 4 1950 2019.03.07 3832 1950 Head 1.430 39.014 Pass Pass Pass GMSK Pass N/A 4 2450 2019.03.08 3832 2450 Head 1.825 38.782 Pass Pass Pass OFDM/TDD Pass N/A 4 900 2019.03.09 3832 900 Body 1.035 56.184 Pass Pass Pass GMSK PASS N/A 4 750 2019.03.04 3832 750 Body 0.969 53.451 Pass Pass Pass N/A N/A N/A 4 1750 2019.03.06 3832 1750 Body 1.454 53.515 Pass Pass Pass N/A N/A N/A 4 1950 2019.03.07 3832 1950 Body 1.518 51.796 Pass Pass Pass GMSK Pass N/A 4 2450 2019.03.08 3832 2450 Body 2.043 51.130 Pass Pass Pass OFDM/TDD Pass N/A Note: Wile the probes have been calibrated for both CW and modulated signals, all measurements were performed using communication systems calibrated for CW signals only. Modulations in the table above represent test configurations for which the measurement system has been validated per FCC KDB Publication 865664 D01v01r04 for scenarios when CW probe calibrations are used with other signal types. SAR systems were validated for modulated signals with a periodic duty cycle, such as GMSK, or with a high peak to average ratio (> 5 dB), such as OFDM according to FCC KDB Publication 865664 D01v01r04. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)


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