SAR report pt 4 of 4

FCC ID: EHA-IM11

RF Exposure Info

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FCCID_2612692

Equipment ID: SAF Calibration Laboratory of Schweizerischer Kalibrierdienst Schmid & Partner Service suisse c‘étalonnage Engineering AG Sorvizio svizzero dtaratura Zeughausstrasse 43, 8004 Zurich, Switzerland Swiss Calibration Service Accredited by the Swiss Accreditation Service (SAS) .: SCS 108 The Swiss Accreditation Service is one of the signatories to the EA Multateral Agreementfor the recognition of calibration certificates Client Northwest EMC Certificate No: ES3—3246_Nov14 [CALIBRATION CERTIFICATE Object ES3DV3 — SN:3246 Calibration procedure(s) QA CAL—01.v9, QA CAL—12.49, QA CAL—23.v5, QA CAL—25.v6 Calibration procedure for dosimetric E—field probes | j Caltoration date: November7, 2014 This calibration certficate documents the traceabilly to natlonal standards, which realizethe physical units of measurements (8). | The measurements and the uncertainties with confidence probablity are given on the following pages and are part of the certiicate. All calibrations have been conducted in the closed laboratory faciff : environment temperature (22 + 3)°C and humnidity < 70%. Callbration Equipment used (M&TE critical for calibration) Primary Standards 10 Gal Date (Certficate No.) Scheduled Caltoration Power meter E44198 cBerzoser 08—Apr—14 (No. 217—01911) Apr—t5 Power sensor E4412A MyY41498087 03—Apr—14 (No. 217—01911) Apri5 Reference 3 dB Attenuator SN: S606d (Gc)_ 03—Apr—14 (No. 217—01915) Apr—t5 Reference 20 dB Attenuator SN: Se2r? (208) 03—Apr—14 (No. 217—01919) Aprt5 Reference 30 dB Attenuator SN: s5120 (306) 03—Apr.—14 (No. 217—01920) Apr—t5 Reference Probe ES3DV2 SN 3018 30—Dec—13 (No. ES3—3013_Dect3)_ Dec—14 DaE4 SN: 660 13—Dec—13 (No. DAE4—660_Dec13) Dec—14 Secondary Standards [M Check Date (in house) Scheduled Check RF generator HP 8648C Uss6q2U01700 4—Aug—99 (in house check Apr—13) In house chackApr—16 Network Analyzer HP 8753E Usar390585 18—00t—01 (in house cheok Oct—14) in house check: Oct—15 Name Function Signdture Callbrated by: Claudio Leubler Laboratory Technician Approved by: Kalja Pokovic Technical Manager /g’ ’5‘{ Issued: November 10, 2014 This calbration certficate shall not be reproduced except in full without written approval of the faboratory. Repatintite NMEQRRRRReU1 Page 1 of 11 6599

Calibration Laboratory of Schmid & Partner s Schweizerischer Kalibrierdienst Service suisse d'etalonnage Engineering AG c Servizio svizzero di taratura Zeughausstrasse 43, 8004 Zurich, Switzerland s Swiss Calibration Service Accred ited by the Swiss Accreditation Service (SAS) Accreditation No.: SCS 108 The Swiss Accreditation Service is one of the signatories to the EA Multilateral Agreement for the recognition of calibration certificates Glossary: TSL tissue simulating liquid NORMx,y,z sensitivity in free space ConvF sensitivity in TSL I NORMx,y,z DCP diode compression point CF crest factor (1 /duty_cycle) of the RF signal A, B, C, D modulation dependent linearization parameters Polarization cp cp rotation around probe axis Polarization S S rotation around an axis that is in the plane normal to probe axis (at measurement center), = i.e., S 0 is normal to probe axis Connector Angle information used in DASY system to align probe sensor X to the robot coordinate system 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) IEC 62209-1 , "Procedure to measure the Specific Absorption Rate (SAR) for hand-held devices used in close proximity to the ear (frequency range of 300 MHz to 3 GHz)", February 2005 Methods Applied and Interpretation of Parameters: • NORMx,y,z: Assessed for E-field polarization S = 0 (f :-;; 900 MHz in TEM-cell; f > 1800 MHz: R22 waveguide}. 2 NORMx,y,z are only intermediate values, i.e., the uncertainties of NORMx,y,z does not affect the E -field uncertainty inside TSL (see below ConvF). • = NORM(f)x,y,z NORMx,y,z * frequency_response (see Frequency Response Chart). This linearization is implemented in DASY 4 software versions later than 4.2. The uncertainty of the frequency response is included in the stated uncertainty of ConvF. • DCPx,y,z: DCP are numerical linearization parameters assessed based on the data of power sweep with CW signal (no uncertainty required) . DCP does not depend on frequency nor media. • PAR: PAR is the Peak to Average Ratio that is not calibrated but determined based on the signal characteristics • Ax,y,z; Bx,y,z; Cx,y,z; Dx,y,z; VRx,y,z: A, B, C, Dare numerical linearization parameters assessed based on the data of power sweep for specific modulation signal. The parameters do not depend on frequency nor media. VR is the maximum calibration range expressed in RMS voltage across the diode. • ConvF and Boundary Effect Parameters: Assessed in flat phantom using E-field (or Temperature Transfer Standard for f :-;; 800 MHz) and inside waveguide using analytical field distributions based on power measurements for f > 800 MHz. The same setups are used for assessment of the parameters applied for boundary compensation (alpha, depth} of which typical uncertainty values are given. These parameters are used in DASY4 software to improve probe accuracy close to the boundary. The sensitivity in TSL corresponds to NORMx,y,z * ConvF whereby the uncertainty corresponds to that given for ConvF. A frequency dependent ConvF is used in DASY version 4.4 and higher which allows extending the validity from± 50 MHz to± 100 MHz. • Spherical isotropy (30 deviation from isotropy) : in a field of low gradients realized using a flat phantom exposed by a patch antenna . • Sensor Offset: The sensor offset corresponds to the offset of virtual measurement center from the probe tip (on probe axis). No tolerance required . • Connector Angle: The angle is assessed using the information gained by determining the NORMx (no uncertainty required) . Report No. INMC0920 Certificate Rev 01 No: ES3-3246_Nov14 Page 2 of 11 66/99

ES3DV3 - SN :3246 November 7, 2014 Probe ES3DV3 SN:3246 Manufactured: May 5, 2009 Calibrated: November 7, 2014 Calibrated for DASY/EASY Systems (Note: non-compatible with DASY2 system!) Certificate No: ES3-3246_Nov14 Page 3 of 11 Report No. INMC0920 Rev 01 67/99

ES3DV3- SN:3246 November 7, 2014 DASY/EASY - Parameters of Probe: ES3DV3 - SN:3246 Basic Calibration Parameters Sensor X SensorY SensorZ Unc (k=2) Norm (uV/(V/m)'L)A 1.42 1.1 9 1.19 ± 10.1 % DCP (mV) 0 102.3 101.8 103.9 Modulation Calibration Parameters UID Communication System Name A B c D VR Uncc dB dByµV dB mV (k=2) 0 cw x 0.0 0.0 1.0 0.00 196.0 ±3.8 % y 0.0 0.0 1.0 207 .5 z 0.0 0.0 1.0 201.9 The reported uncertainty of measurement is stated as the standard uncertainty of measurement multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probability of approximately 95%. A The uncertainties of NormX,Y,Z do not affect the E 2-field uncertainty inside TSL (see Pages 5 and 6). 8 Numerical linearization parameter: uncertainty not required. E Uncertainty is determined using the max. deviation from linear response applying rectangular distribution and is expressed for the square of the field value. Report No. INMC0920 Rev 01 Certificate No: ES3-3246_Nov14 68/99 Page 4 of 11

ES3DV3- SN:3246 November 7, 2014 DASY/EASY - Parameters of Probe: ES3DV3 - SN:3246 Calibration Parameter Determined in Head Tissue Simulating Media Relative Conductivity Depth u Unct. f (MHz) c Permittivity F (S/m)F ConvF X ConvF Y ConvF Z AlphaG (mm) (k=2) 750 41 .9 0.89 6.40 6.40 6.40 0.31 1.89 ± 12.0 % 835 41 .5 0.90 6.20 6.20 6.20 0.35 1.75 ± 12.0 % 900 41.5 0.97 6.06 6.06 6.06 0.32 1.84 ± 12.0 % 1750 40.1 1.37 5.28 5.28 5.28 0.47 1.57 ± 12.0 % 1900 40.0 1.40 5.04 5.04 5.04 0.67 1.28 ± 12.0 % c Frequency validity above 300 MHz of± 100 MHz only applies for DASY v4.4 and higher (see Page 2) , else it is restricted to± 50 MHz. The uncertainty is the RSS of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band. Frequency validity below 300 MHz is± 10, 25, 40, 50 and 70 MHz for ConvF assessments at 30, 64, 128, 150 and 220 MHz respectively. Above 5 GHz frequency validity can be extended to ± 110 MHz. F At frequencies below 3 GHz, the validity of tissue parameters (r. and cr) can be relaxed to± 10% if liquid compensation formula is applied to measured SAR values. At frequencies above 3 GHz, the validity of tissue parameters (e and er) is restricted to ± 5%. The uncertainty is the RSS of the ConvF uncertainty for indicated target tissue parameters. G Alpha/Depth are determined during calibration . SPEAG warrants that the remain ing deviation due to the boundary effect after compensation is always less than ± 1% for frequencies below 3 GHz and below± 2% for frequencies between 3-6 GHz at any distance larger than half the probe tip diameter from the boundary. Report No. INMC0920 Certificate Rev 01 No: ES3-3246_Nov14 Page 5of11 69/99

ES3DV3- SN:3246 November 7, 2014 DASY/EASY - Parameters of Probe: ES3DV3 - SN:3246 Calibration Parameter Determined in Body Tissue Simulating Media Relative Conductivity Depth" Unct. f (MHz) c Permittivity F (S/m) F ConvF X ConvF Y ConvF Z AlphaG (mm) (k=2) 450 56.7 0.94 7.34 7.34 7.34 0.13 1.80 ± 13.3 % 750 55.5 0.96 6.17 6.17 6.17 0.63 1.29 ± 12.0 % 835 55.2 0.97 6.19 6.19 6.19 0.40 1.66 ± 12.0 % 900 55.0 1.05 6.07 6.07 6.07 0.63 1.28 ± 12.0 % 1750 53.4 1.49 4.97 4.97 4.97 0.43 1.75 ± 12.0 % 1900 53.3 1.52 4.70 4.70 4.70 0.44 1.59 ± 12.0 % c Frequency validity above 300 MHz of± 100 MHz only applies for DASY v4.4 and higher (see Page 2), else it is restricted to± 50 MHz. The uncertainty is the RSS of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band . Frequency validity below 300 MHz is± 10, 25, 40, 50 and 70 MHz for ConvF assessments at 30, 64, 128, 150 and 220 MHz respectively. Above 5 GHz frequency validity can be extended to± 11 O MHz. F At frequencies below 3 GHz, the validity of tissue parameters ( E and er) can be relaxed to ± 10% if liquid compensation fonmula is applied to measured SAR values. At frequencies above 3 GHz, the val idity of tissue parameters (E and er) is restricted to± 5% . The uncertainty is the RSS of the ConvF uncertainty for indicated target tissue parameters. G Alpha/Depth are determined during calibration . SPEAG warrants that the remaining deviation due to the boundary effect after compensation is always less than ± 1% for frequencies below 3 GHz and below± 2% for frequencies between 3-6 GHz at any distance larger than half the probe tip diameter from the boundary. Report No. INMC0920 Rev 01 70/99 Certificate No: ES3-3246_Nov14 Page 6 of 11

ES3DV3— SN:3246 November 7, 2014 Frequency Response of E—Field (TEM—Cell:fi110 EXX, Waveguide: R22) Frequency response (normalized) Uncertainty of Frequency Response of E—field: £ 6.3% (k=2) Regotintite NMERREREADL Page 7 of 11 lig

ES3DV3— SN:3248 November 7, 2014 Receiving Pattern (¢), 8 = 0° f=600 MHz,TEM £=1800 MHz,R22 RolT 10% GU%Z 1Bflf.de QS@HZ Uncertainty of Axial Isotropy Assessment: £ 0.5% (k=2) RepotnNt MNMCESRRERCDL Page 8 of 11 7299

ES3DV3— SN:3246 November 7, 2014 Dynamic Range f(SARneaqg) {TEM cell , fey= 1900 MHz) 10° 105 > & 1094 © 6 ® ® 5 && 104 102 102 107 10 10 10° 10° SAR [mWiem3] A3l Ce) not compensated compensated 2 1 § . 2. & 05 & § + ad 108 102 101 108 101 102 10° SAR [mW/oma] _*1 not compensated compensated Uncertainty of Linearity Assessment: £ 0.6% (k=2) Repotintite NMEDESRRACOL Page 9 of 11 7300

ES3DV3— SN:3246 November 7, 2014 Conversion Factor Assessment #3 f= 835 MHz,WGLS R9 (H_convF) 1 = 1900 MHz,WGLS R22 (H_convr) .»* x5.44y 8 sat mnghy sat mingy 3 /{ 4 3 a y .2 / / Wh, 19. ce i Deviation from Isotropy in Liquid Error (¢, 9), f= 900 MHz 410 —08 «06 «04 —02 oo o2 o4 o6 08 10 Uncertainty of Spherical Isotropy Assessment: £ 2.6% (k=2) Report No. eggnififia% Wo'\:flgsoa%%gfilow4 Page 10 of 11 7a99

ES3DV3- SN:3246 November 7, 2014 DASY/EASY - Parameters of Probe: ES3DV3 - SN:3246 Other Probe Parameters Sensor Arrangement Triangular Connector Angle (0 ) -7 Mechanical Surface Detection Mode enabled Optical Surface Detection Mode disabled Probe Overall Length 337 mm Probe Body Diameter 10 mm Tip Length 10 mm Tip Diameter 4mm Probe Tip to Sensor X Calibration Point 2mm Probe Tip to Sensor Y Calibration Point 2mm Probe Tip to Sensor Z Calibration Point 2mm Recommended Measurement Distance from Surface 3mm Report No. INMC0920 Certificate Rev 01 No: ES3-3246_Nov14 Page 11 of 11 75/99


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Document Modified: 2015-05-13 09:14:46
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