Power Density

FCC ID: IHDT56XL1

RF Exposure Info

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FCCID_4364265

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B RF EXPOSURE EVALUATION REPORT FCC ID : IHDT56XL1 Equipment : Mobile 5G MOD Brand Name : Motorola Applicant : Motorola Mobility LLC 222 W,Merchandise Mart Plaza, Chicago IL 60654 USA Manufacturer : Motorola Mobility LLC 222 W,Merchandise Mart Plaza, Chicago IL 60654 USA Standard : FCC 47 CFR Part 2 (2.1093) We, SPORTON INTERNATIONAL INC have been evaluated in accordance with 47 CFR Part 2.1093 for the device and pass the limit. The test results in this variant report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. EMC & Wireless Communications Laboratory, the test report shall not be reproduced except in full. Approved by: Cona Huang / Deputy Manager SPORTON INTERNATIONAL INC. EMC & Wireless Communications Laboratory No. 52, Huaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan (R.O.C.) TEL : 886-3-327-3456 Page 1 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B Table of Contents 1. Summary ........................................................................................................................................................................ 4 2. Guidance Applied .......................................................................................................................................................... 4 3. Equipment Under Test (EUT) Information ................................................................................................................... 5 3.1 General Information ............................................................................................................................................... 5 4. RF Exposure Limits....................................................................................................................................................... 6 4.1 Uncontrolled Environment ...................................................................................................................................... 6 4.2 Controlled Environment.......................................................................................................................................... 6 5. System Description and Setup .................................................................................................................................... 7 5.1 EUmmWave Probe / E-Field 5G Probe .................................................................................................................. 8 5.2 Data Acquisition Electronics (DAE) ........................................................................................................................ 9 5.3 Scan configuration ................................................................................................................................................. 9 6. Test Equipment List .....................................................................................................................................................10 7. System Verification Source .........................................................................................................................................10 8. Power Density System Verification ............................................................................................................................11 9. System Verification Results ........................................................................................................................................11 10. Power Density Measurement Evaluation .................................................................................................................12 10.1 Computation of the Electric Field Polarization Ellipse .........................................................................................13 10.2 Total Field and Power Flux Density Reconstruction ............................................................................................13 11. RF Exposure Evaluation Results ..............................................................................................................................14 12. Simultaneous Transmission Analysis ......................................................................................................................15 13. Uncertainty Assessment ...........................................................................................................................................16 14. References ..................................................................................................................................................................17 Appendix A. Plots of System Performance Check Appendix B. Plots of Power Density Measurement Appendix C. DASY Calibration Certificate Appendix D. Simultaneous Transmission analysis Appendix E. Antenna Location & Test Setup Photos TEL : 886-3-327-3456 Page 2 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B History of this test report Report No. Version Description Issued Date FA890514-05B 01 Initial issue of report Jul. 09, 2019 TEL : 886-3-327-3456 Page 3 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

seortrow cas. _RF EXPOSURE EVALUATION REPORT Report No. : FA890514—05B 1. Summary The maximum measured average power density found during testing for Motorola Mobility LLC, Mobile 5G MOD, are as follows. n Simultaneous transmission with db oes other transmitters Highest Total Power Density, Wireless mode averaging over Fioug uino y Summation of Exposure Ratio (mW/cmZ) (mW/cm") 5GNR n261 2. Guidance Applied The Power Density testing specification, method, and procedure for this device is in accordance with the following standards: FCC 47 CFR Part 2.1091 FCC 47 CFR Part 2.1093 FCC KDB 865664 D02 SAR Reporting v01r02 FCC KDB 447498 DO1 General RF Exposure Guidance v06 FCC KDB 648474 D04 SAR Evaluation Considerations for Wireless Handsets v01r08 TCBC workshop notes IEC Draft TR 63170 TEL : 886—3—327—3456 Page 4of 17 FAX : 886—3—328—4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 3. Equipment Under Test (EUT) Information 3.1 General Information Product Feature & Specification Equipment Name Mobile 5G MOD Brand Name Motorola FCC ID IHDT56XL1 HW Version DVT2 SW Version PPZ29.67 EUT Stage Identical Prototype LTE LTE Band 2: 1850.7 MHz ~ 1909.3 MHz LTE Band 4: 1710.7 MHz ~ 1754.3 MHz Wireless Technology and Frequency LTE Band 5: 824.7 MHz ~ 848.3 MHz Range LTE Band 13: 779.5 MHz ~ 784.5 MHz LTE Band 66: 1710.7 MHz ~ 1779.3 MHz LTE Band 48: 3552.5 MHz ~ 3697.5 MHz Modulation LTE: QPSK, 16QAM, 64QAM 5GNR Wireless Technology and Frequency 5G NR n260: 37GHz~40GHz Range 5G NR n261: 27.5GHz~28.35GHz Modulation QPSK, 16QAM, and 64QAM for CP-OFDM Supported Channel Bandwidth 50MHz/100MHz Maximum Number of contiguous CC 4CC Maximum Aggregated Bandwidth 400MHz Max. Uplink Transmission Duty Cycle 100% Supports dual-polarization MIMO (2 × 2 uplink (UL) and 2 × 2 downlink (DL)) Antenna Information This device has 4 antenna array modules, only one module can be turned on and transmits at a time. 5GNR Operation Non-Standalone (NSA) Mode DC_2_n260, DC_4_n260, DC_5_n260, DC_13_n260, DC_66_n260 EN-DC combination DC_2_n261, DC_4_n261, DC_5_n261, DC_13_n261, DC_66_n261 Remark: 1. The MOD is snapped onto the smartphone IHDT56WB1, and supports multiple antenna transmission, therefore need to consider simultaneous transmission analysis for SAR and PD, the WWAN and WLAN SAR test results were referring to the report of FCC ID: IHDT56WB1 (Sporton SAR Report No. FA733129-02). Power density is evaluated with the MOD attached on the phone. 2. The 5G NR n260 and n261 power density of Mobile 5G MOD has full evaluation in original filing, FCC ID: IHDT56XL1 Sporton Report No.: FA890514B for 5G NR n261, Sporton Report No.: FA890514-01 for 5G NR n260, in this report only spot check each worst case array module to show compliance. 3. For 5G n261/n260 operation, the device has 4 array modules and only one will transmit at a time. The device has implements the sensor to detect the human proximity, once the sensor detects and is triggered, the associated antenna array module will disable the transmission and switch to one of the other 3 array module. Detailed illustration of the sensor implementation is in the operation description. 4. For front facing array module (Array Module 2), when earpiece signal from phone indicates operation at head, this array module would be disabled, therefore head exposure condition evaluation is not required. Reviewed by: Eric Huang Report Producer: Wan Liu TEL : 886-3-327-3456 Page 5 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 4. RF Exposure Limits 4.1 Uncontrolled Environment Uncontrolled Environments are defined as locations where there is the exposure of individuals who have no knowledge or control of their exposure. The general population/uncontrolled exposure limits are applicable to situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment may not be made fully aware of the potential for exposure or cannot exercise control over their exposure. Members of the general public would come under this category when exposure is not employment-related; for example, in the case of a wireless transmitter that exposes persons in its vicinity. 4.2 Controlled Environment Controlled Environments are defined as locations where there is exposure that may be incurred by persons who are aware of the potential for exposure, (i.e. as a result of employment or occupation). In general, occupational/controlled exposure limits are applicable to situations in which persons are exposed as a consequence of their employment, who have been made fully aware of the potential for exposure and can exercise control over their exposure. The exposure category is also applicable when the exposure is of a transient nature due to incidental passage through a location where the exposure levels may be higher than the general population/uncontrolled limits, but the exposed person is fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. The criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure above 6GHz to radio frequency (RF) radiation as specified in §1.1310. 2 General Population Basic restriction for power density for frequencies between 1.5GHz and 100 GHz is 1.0 mW/cm = 10 2 W/m Table 1 TEL : 886-3-327-3456 Page 6 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 5. System Description and Setup The system to be used for the near field power density measurement  SPEAG DASY6 system  SPEAG cDASY6 5G module software  EUmmWVx probe  5G Phantom cover TEL : 886-3-327-3456 Page 7 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 5.1 EUmmWave Probe / E-Field 5G Probe The probe design allows measurements at distances as small as 2 mm from the sensors to the surface of the device under test (DUT). The typical sensor to probe tip distance is 1.5 mm. Frequency 750 MHz – 110 GHz Probe Overall Length 320 mm Probe Body Diameter 8.0 mm Tip Length 23.0 mm Tip Diameter 8.0 mm Probe’s two dipoles length 0.9 mm – Diode loaded Dynamic Range < 20 V/m - 10000 V/m with PRE-10 (min < 50 V/m - 3000 V/m) Position Precision < 0.2 mm Distance between diode sensors and 1.5 mm probe’s tip Minimum Mechanical separation 0.5 mm between probe tip and a Surface E-field measurements of 5G devices and other mm-wave transmitters Applications operating above 10GHz in < 2 mm distance from device (free-space) Power density, H-field and far-field analysis using total field reconstruction. Compatibility cDASY6 + 5G-Module SW1.0 and higher TEL : 886-3-327-3456 Page 8 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

seonron cas. _RF EXPOSURE EVALUATION REPORT Report No. : FA890514—05B 5.2 Data Acquisition Electronics (DAE) The data acquisition electronics (DAE) consists of a highly sensitive electrometer—grade preamplifier with auto—zeroing, a channel and gain—switching multiplexer, a fast 16 bit AD—converter and a command decoder and control logic unit. Transmission to the measurement server is accomplished through an optical downlink for data and status information as well as an optical uplink for commands and the clock. The input impedance of the DAE is 200 MOhm; the inputs are symmetrical and floating. Common mode rejection is above 80 dB. 5.3 Scan configuration Fine—resolution scans on 2 different planes are performed to reconstruct the E— and H—fields as well as the power density; the z—distance between the 2 planes is set to ¥ /4. The (x, y) grid step is also set 2 /4, the grid extent is set to sufficiently large to identify the field pattern and the peak. TEL : 886—3—327—3456 Page 9of 17 FAX : 886—3—328—4978 Issued Date ; Jul. 09, 2019 Form version: 180516

seortrow cas. _RF EXPOSURE EVALUATION REPORT Report No. : FA890514—05B 6. Test Equipment List SPEAG 5G Verification Source 30 GHz 1007 Apr. 24, 2019 Apr. 23, 2020 SPEAG EUmmWV Probe Tip Protection EUmmWV3 9413 Feb. 13, 2019 Feb. 12, 2020 SPEAG Data Acquisition Electronics DAE4 853 Jul. 24, 2018 Jul. 23, 2019 TESTO Hygro meter 608—H1 34913631 Aug. 27, 2018 Aug. 26, 2019 Rohde & Schwarz Spectrum Analyzer FSV40 101408 Jul. 30, 2018 Jul. 29, 2019 Custom Microwave Standard Horn antenna M15RH V91113—A NCR NCR 7. System Verification Source The System Verification sources at 30 GHz and above comprise horn—antennas and very stable signal generators. Model Ka—band horn antenna Calibrated frequency: 30 GHz at 10mm from the case surface Frequency accuracy + 100 MHz E—tield polarization linear Harmonics —20 dBc Total radiated power 14 dBm Power stability 0.05 dB Power consumption 5W Size 00 x 100 x 100 mm Weight 1 kg TEL : 886—3—327—3456 Page 10 of 17 FAX : 886—3—328—4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 8. Power Density System Verification The system performance check verifies that the system operates within its specifications. The EUT is replaced by a calibrated source, the same spatial resolution, measurement region and the test separation used in the calibration was applied to system check. Through visual inspection into the measured power density distribution, both spatially (shape) and numerically (level) have no noticeable difference. The measured results should be within 10% of the calibrated targets. Settings for measurement of verification sources Verification Setup photo 9. System Verification Results 5G Measured Targeted Frequency Probe DAE Distance Deviation Date Verification 4 cm² 4 cm² (GHz) S/N S/N (mm) (%) Source (W/m²) (W/m²) 2019/6/5 30GHz 30GHz-1007 9413 853 10 38.1 37.9 0.53 TEL : 886-3-327-3456 Page 11 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 10. Power Density Measurement Evaluation 1. The 5G NR n260 / n261 signal under testing was configured by test Qualcomm software, and the test tool can be used and set the relevant 5G radio parameters (e.g. TX carrier, polarization, band, channel, bandwidth and output power etc.) 2. The device was configured to transmit maximum power and at 100% duty cycle, for each RB configuration/modulation/bandwidth/channel to be tested 3. Since the device Supports dual-polarization MIMO (2 × 2 uplink (UL) and 2 × 2 downlink (DL)), therefore the device under test was configured beam pair testing at a time. 4. According to manufacturer simulation test results for different antenna modules and exposure planes, limited worst cases were selected for power density measurement. 5. According to TCBC Workshop in October 2018, 4 cm2 averaging area may now be considered. 6. The power density test separation distance and test conditions were confirmed by FCC in the lab KDB inquiry. The device implements the sensor detection, so that for some device orientations the PD test at default test separation was skipped and PD was tested at larger distance which represents the sensor detection range 7. Above 6 GHz, Maximum Permissible Exposure (MPE) limits apply to portable exposure conditions according to 47 CFR §2.1093. TEL : 886-3-327-3456 Page 12 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 10.1 Computation of the Electric Field Polarization Ellipse For the numerical description of an arbitrarily oriented ellipse in three-dimensional space, five parameters are needed: the semi-major axis (a), the semi-minor axis (b), two angles describing the orientation of the normal vector of the ellipse (∅, θ), and one angle describing the tilt of the semi-major axis (ψ). For the two extreme cases, i.e., circular and linear polarizations, three parameters only (a, ∅ and θ) are sufficient for the description of the incident field. Illustration of the angles used for the numerical description of the sensor and the orientation of an ellipse in 3-D space. For the reconstruction of the ellipse parameters from measured data, the problem can be reformulated as a nonlinear search problem. The semi-major and semi-minor axes of an elliptical field can be expressed as functions of the three angles (∅, θ and ψ). The parameters can be uniquely determined towards minimizing the error based on least-squares for the given set of angles and the measured data. In this way, the number of free parameters is reduced from five to three, which means that at least three sensor readings are necessary to gain sufficient information for the reconstruction of the ellipse parameters. However, to suppress the noise and increase the reconstruction accuracy, it is desirable that the system of equations be over determined. The solution to use a probe consisting of two sensors angled by r1 and r2 toward the probe axis and to perform measurements at three angular positions of the probe, i.e., at β1, β2 and β3, results in over-determinations by a factor of two. If there is a need for more information or increased accuracy, more rotation angles can be added. The reconstruction of the ellipse parameters can be separated into linear and non-linear parts that are best solved by the Givens algorithm combined with a downhill simplex algorithm. To minimize the mutual coupling, sensor angles are set with a shift of 90 degree (r2 = r1 + 90 degree), and to simplify, the first rotation angle of the probe (β1) can be set to 0 degree 10.2 Total Field and Power Flux Density Reconstruction Computation of the power density in general requires knowledge of the electric and magnetic field amplitudes and phases in the plane of incidence. Reconstruction of these quantities from pseudo-vector E-field measurements is feasible, as they are constrained by Maxwell's equations. SPEAG have developed a reconstruction approach based on the Gerchberg-Saxton algorithm, which benefits from the availability of the E-field polarization ellipse information obtained with the EUmmWV2 probe. The average of the reconstructed power density is evaluated over a circular area in each measurement plane. Two average power density values can be computed, the average total power density and the average incident power density, and the average total power density is used to determine compliance. The software post-processing reports to values, “S avg tot” and “S avg inc”. “S avg tot” represents average total power density (all three xyz components included), and “S avg inc” represents average normal power density. The average total power density “S avg tot” is reported to determine the device compliance. TEL : 886-3-327-3456 Page 13 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 11. RF Exposure Evaluation Results 1. The 5G NR n260 and n261 power density of Mobile 5G MOD has full evaluation in original filing, FCC ID: IHDT56XL1 Sporton Report No.: FA890514B for 5G NR n261, Sporton Report No.: FA890514-01 for 5G NR n260, in this report only spot check each worst case array module to show compliance. 2. 2 mm “Test separation” means 0.5 mm between probe-housing tip and DUT, with 1.5 mm from probe-housing tip to center of sensing elements. <5G NR n261> Measured Measured 4cm^2 4cm^2 Measured Measured Plot carrier antenna Exposure Test Average Average bandwidth Frequency RB allocation modulation E peak H peak No. aggregation module Conditions separation Normal Total (V/m) (V/m) PD PD (W/m^2) (W/m^2) 1 100 MHz 1cc Module 2 27.55 Top Side 5 mm 32RB_0 offset QPSK, CP-OFDM 106 0.22 2.37 2.79 50 MHz 1cc Module 3 27.925 Top Side 5 mm 16RB_0 offset QPSK, CP-OFDM 44.1 0.109 2.27 2.4 100 MHz 1cc Module 0 27.925 Left Side 70 mm 66RB_0 offset QPSK, CP-OFDM 27.5 0.072 1.62 1.65 100 MHz 1cc Module 1 27.55 Right Side 70 mm 32RB_0 offset QPSK, CP-OFDM 24.2 0.067 1.01 1.07 <5G NR n260> Measured Measured 4cm^2 4cm^2 Measured Measured Plot carrier antenna Exposure Test Average Average bandwidth Frequency RB allocation modulation E peak H peak No. aggregation module Conditions separation Normal Total (V/m) (V/m) PD PD (W/m^2) (W/m^2) 100 MHz 1cc Module 0 38.5 Back Surface 5 mm 32RB_0 offset QPSK, CP-OFDM 69.4 0.168 1.62 1.89 100 MHz 1cc Module 1 38.5 Back Surface 5 mm 66RB_0 offset QPSK, CP-OFDM 93.5 0.228 1.29 1.57 2 100 MHz 1cc Module 2 38.5 Top Side 5 mm 32RB_0 offset QPSK, CP-OFDM 84.7 0.172 3.05 3.39 100 MHz 1cc Module 3 37.05 Top Side 5 mm 1RB_0 offset QPSK, CP-OFDM 25.2 0.066 0.874 0.9 TEL : 886-3-327-3456 Page 14 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516

seortrow cas. _RF EXPOSURE EVALUATION REPORT Report No. : FA890514—05B 12. Simultaneous Transmission Analysis Mod WWAN LTE Bands+5GNR n261 Phone WLAN 2.4GHz/SGHz+Mod LTE Bands + 5GNR n261 Phone WWAN LTE bands+ phone WLAN 2.4GHz/S5GHz+ Mod LTE Bands + SGNR n261 Phone WWAN CDMA bands+ phone WLAN 2.4GHz/5GHz+ Mod LTE Bands + 5GNR n261 Mod WWAN LTE Bands+5GNR n260 Phone WLAN 2.4GHz/5GHz+Mod LTE Bands + 5GNR n260 Phone WWAN LTE bands+ phone WLAN 2.4GHz/S5GHz+ Mod LTE Bands + SGNR n260 Phone WWAN CDMA bands+ phone WLAN 2.4GHz/SGHz+ Mod LTE Bands + 5SGNR n260 General Note: 1. The WWAN / WLAN and Bluetooth SAR test results of Mobile phone and Mobile 5G MOD were referring the report of FCC ID: IHDTSGXL1 (Sporton SAR Report No. FA890514A) for Mobile 5G MOD, and Mobile phone report of FCC ID: IHDTSBWB1 (Sporton SAR Report No. FA733129—02) to be used for simultaneous transmission analysis. 2. The Power density results of n260 and n261 were referring the report of FCC ID: IHDTSGXL1 (Sporton SAR Report No. FA8905148 for n261 and FAB890514—01 for n260) to be used for simultaneous transmission analysis. 3. Considering 5G NR n261 / n260 with WWAN / WLAN and Bluetooth can transmit simultaneously, the basic restrictions are on SAR and power density, and summation of these quantities should follow below formula and the simultaneous transmission analysis was following below step and the detail analysis refer to appendix D: i) Use the standalone SAR according original report to collocate with 5G NR n261 power density at each exposure positions, if the result < 1, additional analysis is not necessary. ii) If this ratio is larger than 1, use surface single point SAR measurements and treat as 1—gram measurements with 1.6 W/kg as the limit. Use these measurement for the point by point summation and confirm the ratio summation does not exceed 1 The [ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune—up tolerance) / 1.6 W/kg] + [> of MPE ratios] is s 1.0. Test Engineer : Aaron Chen, Tom Jiang, Thomas Wang, Kurt Liu and Nick Yu TEL : 886—3—327—3456 Page 15 of 17 FAX : 886—3—328—4978 Issued Date : Jul. 09, 2019 Form version: 180516

seortrow cas. _RF EXPOSURE EVALUATION REPORT Report No. : FA890514—05B 13. Uncertainty Assessment The budgetis valid for evaluation distances > A/21. For specific tests and configurations, the Uncertainty could be considerably smaller. Probe Calibration I|1|1|1|1|1|1|z|1|m|m|m|z 8 Hemispherical Isotropy 8| Linearity 8| System Detection Limits 8]}8]} Modulation Response Readout Electronics 8|81 Response Time Integration Time 81818181 RF Ambient Noise RF Ambient Reflections Probe Positioner Probe Positioning 818| Savg Reconstruction Power Drift Input Power TEL : 886—3—327—3456 Page 16 of 17 FAX : 886—3—328—4978 Issued Date : Jul. 09, 2019 Form version: 180516

RF EXPOSURE EVALUATION REPORT Report No. : FA890514-05B 14. References [1] FCC 47 CFR Part 2 “Frequency Allocations and Radio Treaty Matters; General Rules and Regulations” [2] FCC KDB 447498 D01 v06, “Mobile and Portable Device RF Exposure Procedures and Equipment Authorization Policies”, Oct 2015 [3] FCC KDB 865664 D02 v01r02, “RF Exposure Compliance Reporting and Documentation Considerations” Oct 2015. [4] FCC KDB 648474 D04 v01r03, “SAR Evaluation Considerations for Wireless Handsets”, Oct 2015. TEL : 886-3-327-3456 Page 17 of 17 FAX : 886-3-328-4978 Issued Date : Jul. 09, 2019 Form version: 180516


Document Created: 2019-07-09 19:23:09
Document Modified: 2019-07-09 19:23:09
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