Test Report

FCC ID: 2AFZZC3KH

Test Report

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FCCID_4442322

EMC TEST REPORT Applicant Xiaomi Communications Co., Ltd. FCC ID 2AFZZC3KH Product Mobile Phone Brand Redmi Model M1908C3KH Report No. R1907A0380-E1 Issue Date August 20, 2019 TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in FCC Code CFR47 Part15B (2018)/ ANSI C63.4 (2014). The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Performed by: Wei Liu/ Manager Approved by: Guangchang Fan/ Director TA Technology (Shanghai) Co., Ltd. No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China TEL: +86‐021‐50791141/2/3 FAX: +86‐021‐50791141/2/3‐8000

EMC Test Report Report No.: R1907A0380-E1 Table of Contents 1 Test Laboratory............................................................................................................................... 4 1.1 Notes of the Test Report ......................................................................................................... 4 1.2 Test facility .............................................................................................................................. 4 1.3 Testing Location ...................................................................................................................... 5 2 General Description of Equipment under Test ................................................................................ 6 2.1 Client Information .................................................................................................................... 6 2.2 General information ................................................................................................................. 6 2.3 Applied Standards ................................................................................................................... 8 2.4 Test Mode................................................................................................................................ 9 3 Test Case Results ........................................................................................................................ 10 3.1 Radiated Emission ................................................................................................................ 10 3.2 Conducted Emission ............................................................................................................. 16 4 Main Test Instrument .................................................................................................................... 20 TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 2 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 Summary of measurement results Number Test Case Clause in FCC Rules Conclusion 1 Radiated Emission FCC Part15.109, ANSI C63.4-2014 PASS 2 Conducted Emission FCC Part15.107, ANSI C63.4-2014 PASS Test Date: July 22, 2019~ August 12, 2019 TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 3 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 1 Test Laboratory 1.1 Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA technology (shanghai) co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2 Test facility FCC (Designation number: CN1179, Test Firm Registration Number: 446626) TA Technology (Shanghai) Co., Ltd. has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. IC (recognition number is 8510A) TA Technology (Shanghai) Co., Ltd. has been listed by industry Canada to perform electromagnetic emission measurement. VCCI (recognition number is C-4595, T-2154, R-4113, G-10766) TA Technology (Shanghai) Co., Ltd. has been listed by industry Japan to perform electromagnetic emission measurement. A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement. TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 4 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 1.3 Testing Location Company: TA Technology (Shanghai) Co., Ltd. Address: No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China City: Shanghai Post code: 201201 Country: P. R. China Contact: Xu Kai Telephone: +86-021-50791141/2/3 Fax: +86-021-50791141/2/3-8000 Website: http://www.ta-shanghai.com E-mail: xukai@ta-shanghai.com TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 5 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 2 General Description of Equipment under Test 2.1 Client Information Applicant Xiaomi Communications Co., Ltd. The Rainbow City of China Resources,NO.68,Qinghe Middle Applicant address Street,Haidian District,Beijing,China Manufacturer Xiaomi Communications Co., Ltd. The Rainbow City of China Resources,NO.68,Qinghe Middle Manufacturer address Street,Haidian District,Beijing,China 2.2 General information EUT Description Device Type: Portable Device Model: M1908C3KH IMEI 1:867195040008872 IMEI: IMEI 2: 867195040008880 HW Version: P2 SW Version: MIUI 10 Antenna Type: PIFA Antenna Band Tx (MHz) Rx (MHz) GSM 850 824 ~ 849 869 ~ 894 GSM 1900 1850 ~ 1910 1930 ~ 1990 WCDMA Band II 1850 ~ 1910 1930 ~ 1990 WCDMA Band IV 1710 ~ 1755 2110 ~ 2155 WCDMA Band V 824 ~ 849 869 ~ 894 Frequency: LTE Band 2 1850 ~ 1910 1930 ~ 1990 LTE Band 4 1710 ~ 1755 2110 ~ 2155 LTE Band 5 824 ~ 849 869 ~ 894 LTE Band 7 2500 ~ 2570 2620 ~ 2690 LTE Band 38 2570 ~ 2620 2570 ~ 2620 Bluetooth: 2402 ~ 2480 2402 ~ 2480 WIFI 2.4G: 2412 ~ 2462 2412 ~ 2462 GSM: GMSK GPRS: GMSK Modulation: EGPRS: GMSK/8PSK WCDMA RMC: QPSK TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 6 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 HSDPA: QPSK HSUPA: QPSK DC-HSDPA:64QAM LTE: QPSK / 16QAM/ 64QAM Bluetooth: GFSK, π/4-DQPSK, 8-DPSK Bluetooth v4.2 LE: GFSK WLAN 802.11b: DSSS WLAN 802.11g/n: OFDM EUT Accessory Manufacturer: Jiangsu Chenyang Electron Co., Ltd. Adapter Model: MDY-09-EQ Manufacturer: Sunwoda Electronic Co.,LTD Battery Model: BN51 Manufacturer: LUXSHARE Precision Industry Co., Ltd. USB Cable 1 Model: L23312 100cm Cable, Shielded Manufacturer: SU ZHOU KELI SCIENCE&TECHNOLOGY DEVELOPMENT CO.,LTD USB Cable 2 Model: K23312 100cm Cable, Shielded Auxiliary test equipment PC Manufacturer: Microsoft Corporation PC Model: L20170076 Note: The information of the EUT is declared by the manufacturer. Item Configure 1 Configure 2 Software The same The same Hardware The same The same Flash 2+16 2+32 Other The same The same Note: Customer declaration, two configures is the same, except for flash. There are more than one Configure, each one should be applied throughout the compliance test respectively, however, only the worst case (Configure 2) will be recorded in this report. TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 7 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 2.3 Applied Standards According to the specifications of the manufacturer, it must comply with the requirements of the following standards: Test standards FCC Code CFR47 Part15B (2018) ANSI C63.4 (2014) TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 8 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 2.4 Test Mode Test Mode for RE Mode 1: USB Copy(EUT with PC) + USB cable + earphone + rear camera On + MP3 +Idle Mode 2: USB Copy(EUT with PC) + USB cable + earphone +front camera On + MP3 +Idle Mode 3: Adapter +USB cable+ earphone + front camera On +Idle Mode4: Adapter +USB cable + earphone + rear camera On +Idle Mode 5: Adapter + USB cable+ earphone + Mp3 +Idle Mode 6: Adapter + USB cable+ earphone +play video+ Idle Mode 7: Adapter + USB cable + earphone + FM(98MHz) Mode 8: Front camera On +earphone + Idle Mode 9: Rear camera On + earphone + Idle Mode 10: Earphone+MP3+Idle Mode 11: Earphone +Play video+ Idle During the test, the preliminary test was performed in all modes with all adapters, USB and batteries, mode 1 with USB cable 2 is selected as the worst condition. The test data of the worst-case condition was recorded in this report. Test Mode for CE Mode 1: USB Copy(EUT with PC) + USB cable + earphone + rear camera On + MP3 +Idle Mode 2: USB Copy(EUT with PC) + USB cable + earphone +front camera On + MP3 +Idle Mode 3: Adapter +USB cable+ earphone + front camera On +Idle Mode4: Adapter +USB cable + earphone + rear camera On +Idle Mode 5: Adapter + USB cable+ earphone + Mp3 +Idle Mode 6: Adapter + USB cable+ earphone +play video+ Idle Mode 7: Adapter + USB cable + earphone + FM(98MHz) During the test, the preliminary test was performed in all modes with all adapters, USB and batteries, mode 1 with USB cable 2 is selected as the worst condition. The test data of the worst-case condition was recorded in this report. TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 9 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 3 Test Case Results 3.1 Radiated Emission Ambient condition Temperature Relative humidity Pressure 24°C~26°C 45%~50% 102.5kPa Methods of Measurement The EUT is placed on a non-metallic table 0.8m above the horizontal metal reference ground plane. The distance between EUT and receive antenna should be 3 meters. During the test, the EUT was operating in its typical mode. The test method is according to ANSI C63.4-2014. Sweep the whole frequency band through the range from 30MHz to the 5th harmonic of the carrier. During the test, the height of receive antenna shall be moved from 1 to 4 meters, and the antenna shall be performed under horizontal and vertical polarization. The turn table shall be rotated from 0 to 360 degrees for detecting the maximum of radiated signal level. The data of cable loss and antenna factor has been calibrated in full testing frequency range before the testing. During the test, the EUT is worked at maximum output power. Set the spectrum analyzer in the following: Below 1GHz: RBW=100 kHz / VBW=300 kHz / Sweep=AUTO Above 1GHz: (a) PEAK: RBW=1MHz / VBW=3MHz/ Sweep=AUTO (b) AVERAGE: RBW=1MHz / VBW=3MHz / Sweep=AUTO The radiated emission was measured in the following position: EUT stand-up position (Z axis), lie-down position (X, Y axis). The worst emission was found in lie-down position (X axis) and the worst case was recorded. During the test, EUT is connected to a laptop via a USB cable in the case of Transfer Data mode. The EUT is used as the peripheral equipment of the PC. The data is transferred from EUT to PC. TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 10 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 Test Setup Below 1GHz Above 1GHz Note: Area side:2.4mX3.6m Antenna Tower meets ANSI C63.4 requirements for measurements above 1 GHz by keeping the antenna aimed at the EUT during the antenna’s ascent/ descent along the antenna mast. TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 11 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 Limits Frequency Field Strength Detector (MHz) (dBμV/m) 30 -88 40.0 Quasi-peak 88-216 43.5 Quasi-peak 216 – 960 46.0 Quasi-peak 960-1000 54.0 Quasi-peak 1000-5th harmonic of the highest 54 Average frequency or 40GHz,which is lower 74 Peak Measurement Uncertainty The assessed measurement uncertainty to ensure 95% confidence level for the normal distribution is with the coverage factor k = 1.96. Frequency Uncertainty 30MHz~200MHz 4.02 dB 200MHz~1000MHz 3.28 dB 1GHz~18GHz 3.70 dB 18GHz~26.5GHz 5.78 dB 26.5GHz~40GHz 5.82 dB TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 12 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 Test Results Sweep the whole frequency band through the range from 30MHz to the 5th harmonic of the carrier, the Emissions in the frequency band 18GHz- 40GHz is more than 20dB below the limit are not reported. The following graphs display the maximum values of horizontal and vertical by software. For above 1GHz, Blue trace uses the peak detection, Green trace uses the average detection. 80 70 60 FCC RE QP 50 Level in dBμV/ 40 30 20 10 0 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz Radiated Emission from 30MHz to 1GHz Frequency Quasi-Peak Height Azimuth Correct Margin Limit Polarization (MHz) (dBuV/m) (cm) (deg) Factor (dB) (dB) (dBuV/m) 33.158750 15.8 100.0 V 306.0 15.6 24.2 40.0 134.557500 18.6 175.0 H 59.0 10.0 24.9 43.5 157.230000 27.6 189.0 H 250.0 10.0 15.9 43.5 190.453750 24.9 100.0 H 300.0 11.5 18.6 43.5 222.867500 24.4 114.0 H 289.0 12.9 21.6 46.0 261.790000 25.5 100.0 H 267.0 14.3 20.5 46.0 Remark: 1. Correction Factor = Antenna factor+ Insertion loss(cable loss+amplifier gain) 2. Margin = Limit – Quasi-Peak TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 13 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 120 100 80 FCC RE PK Level in dBμV/ 60 FCC RE AV 40 20 0 1000 1500 2000 2500 3000 Frequency in MHz Radiated Emission from 1GHz to 3GHz Peak Height Azimuth Correct Margin Limit Frequency Polarization (dBuV/m) (cm) (deg) Factor (dB) (dB) (dBuV/m) (MHz) 1193.000000 35.1 200.0 H 181.0 -11.2 38.9 74.0 1403.500000 35.5 100.0 H 18.0 -10.7 38.5 74.0 1660.000000 36.6 100.0 V 197.0 -9.8 37.4 74.0 1924.750000 37.4 200.0 H 325.0 -9.0 36.6 74.0 2461.500000 39.0 200.0 H 283.0 -6.6 35.0 74.0 2973.250000 40.3 100.0 H 189.0 -5.3 33.7 74.0 Frequency Average Height Azimuth Correct Margin Limit Polarization (MHz) (dBuV/m) (cm) (deg) Factor (dB) (dB) (dBuV/m) 1175.500000 23.6 200.0 V 98.0 -11.3 30.4 54.0 1304.250000 23.7 200.0 H 356.0 -11.0 30.3 54.0 1714.250000 24.7 200.0 V 145.0 -9.6 29.3 54.0 1766.500000 27.1 100.0 V 330.0 -9.5 26.9 54.0 2478.500000 27.7 200.0 H 0.0 -6.5 26.3 54.0 2807.000000 28.8 200.0 V 325.0 -5.7 25.2 54.0 TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 14 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 120 100 80 FCC RE PK Level in dBμV/ 60 FCC RE AV 40 20 0 3G 5G 6 7 8 9 10G 18G Frequency in Hz Radiated Emission from 3GHz to 18GHz Frequency Peak Height Azimuth Correct Margin Limit Polarization (MHz) (dBuV/m) (cm) (deg) Factor (dB) (dB) (dBuV/m) 3283.125000 39.9 200.0 H 358.0 -4.5 34.1 74.0 4005.000000 41.9 100.0 V 350.0 -2.7 32.1 74.0 5323.125000 45.7 200.0 V 108.0 0.6 28.3 74.0 6116.250000 46.4 100.0 V 358.0 2.6 27.6 74.0 7218.750000 49.4 200.0 H 168.0 5.6 24.6 74.0 9851.250000 53.6 200.0 V 19.0 12.0 20.4 74.0 Frequency Average Height Azimuth Correct Margin Limit Polarization (MHz) (dBuV/m) (cm) (deg) Factor (dB) (dB) (dBuV/m) 3300.000000 29.1 100.0 V 281.0 -4.5 24.9 54.0 4023.750000 30.9 100.0 H 145.0 -2.6 23.1 54.0 4565.625000 31.2 100.0 V 0.0 -1.1 22.8 54.0 5413.125000 33.8 200.0 H 224.0 1.0 20.2 54.0 7275.000000 38.2 200.0 H 168.0 5.6 15.8 54.0 9735.000000 42.4 100.0 V 0.0 12.0 11.6 54.0 TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 15 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 3.2 Conducted Emission Ambient condition Temperature Relative humidity Pressure 24°C ~26°C 50%~55% 102.5kPa Methods of Measurement The EUT is placed on a non-metallic table of 80cm height above the horizontal metal reference ground plane. During the test, the EUT was operating in its typical mode. The test method is according to ANSI C63.4-2014. Connect the AC power line of the EUT to the L.I.S.N. Use EMI receiver to detect the average and Quasi-peak value. RBW is set to 9 kHz, VBW is set to 30kHz. The measurement result should include both L line and N line. During the test, EUT is connected to a laptop via a USB cable in the case of Transfer Data mode. The EUT is used as the peripheral equipment of the PC. The data is transferred from EUT to PC. Test Setup Note: Power Supply is AC Power source and it is used to change the voltage 120V/60Hz. Limits Frequency Conducted Limits(dBμV) (MHz) Quasi-peak Average * * 0.15 - 0.5 66 to 56 56 to 46 0.5 - 5 56 46 5 - 30 60 50 *: Decreases with the logarithm of the frequency. Measurement Uncertainty The assessed measurement uncertainty to ensure 95% confidence level for the normal distribution is TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 16 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.


EMC Test Report Report No.: R1907A0380-E1 Test Results Following plots, Blue trace uses the peak detection; Green trace uses the average detection. Meas. Frequency QuasiPeak Average Limit Margin Bandwidth Corr. Time Line Filter (MHz) (dBµV) (dBµV) (dBµV) (dB) (kHz) (dB) (ms) 0.16 52.51 --- 65.40 12.89 1000.0 9.000 L1 ON 19.13 0.19 --- 27.81 54.21 26.40 1000.0 9.000 L1 ON 19.17 0.36 42.92 --- 58.64 15.72 1000.0 9.000 L1 ON 19.19 0.62 --- 19.81 46.00 26.19 1000.0 9.000 L1 ON 19.27 0.91 22.93 --- 56.00 33.07 1000.0 9.000 L1 ON 19.24 0.98 --- 16.89 46.00 29.11 1000.0 9.000 L1 ON 19.24 3.39 --- 16.35 46.00 29.65 1000.0 9.000 L1 ON 19.05 4.79 22.67 --- 56.00 33.33 1000.0 9.000 L1 ON 19.07 10.05 23.52 --- 60.00 36.48 1000.0 9.000 L1 ON 19.41 11.35 --- 17.43 50.00 32.57 1000.0 9.000 L1 ON 19.37 15.02 27.61 --- 60.00 32.39 1000.0 9.000 L1 ON 19.51 15.44 --- 19.43 50.00 30.57 1000.0 9.000 L1 ON 19.45 Remark: Correct factor=cable loss + LISN factor L line Conducted Emission from 150 KHz to 30 MHz TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 18 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 Meas. Frequency QuasiPeak Average Limit Margin Bandwidth Corr. Time Line Filter (MHz) (dBµV) (dBµV) (dBµV) (dB) (kHz) (dB) (ms) 0.16 50.88 --- 65.40 14.52 1000.0 9.000 N ON 19.15 0.19 --- 30.05 54.21 24.16 1000.0 9.000 N ON 19.18 0.37 42.38 --- 58.59 16.21 1000.0 9.000 N ON 19.19 0.62 --- 26.31 46.00 19.69 1000.0 9.000 N ON 19.27 0.99 --- 22.21 46.00 23.79 1000.0 9.000 N ON 19.24 1.00 28.12 --- 56.00 27.88 1000.0 9.000 N ON 19.24 2.25 26.93 --- 56.00 29.07 1000.0 9.000 N ON 19.06 4.65 --- 21.30 46.00 24.70 1000.0 9.000 N ON 19.10 5.82 --- 19.84 50.00 30.16 1000.0 9.000 N ON 19.10 9.79 25.97 --- 60.00 34.03 1000.0 9.000 N ON 19.39 15.80 --- 22.14 50.00 27.86 1000.0 9.000 N ON 19.37 15.83 30.72 --- 60.00 29.28 1000.0 9.000 N ON 19.37 Remark: Correct factor=cable loss + LISN factor N line Conducted Emission from 150 KHz to 30 MHz TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 19 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.

EMC Test Report Report No.: R1907A0380-E1 4 Main Test Instrument Serial Calibration Expiration Name Manufacturer Type Number Date Time Spectrum 15195-01- R&S FSV40 2019-05-19 2020-05-18 Analyzer 00 EMI Test R&S ESCI 100948 2019-05-19 2020-05-18 Receiver Trilog Antenna SCHWARZBECK VULB 9163 9163-201 2017-11-18 2019-11-17 Horn Antenna R&S HF907 100126 2018-07-07 2020-07-06 Standard Gain ETS-Lindgren 3160-09 00102643 2018-06-20 2020-06-19 Horn EMI Test R&S ESR 101667 2019-05-19 2020-05-18 Receiver LISN R&S ENV216 101171 2016-12-16 2019-12-15 Bore Sight ETS 2171B 00058752 / / Antenna mast Test software EMC32 R&S 9.26.0 / / *****END OF REPORT ***** TA Technology (Shanghai) Co., Ltd. TA-MB-06-001E Page 20 of 20 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd.


Document Created: 2019-09-12 19:48:13
Document Modified: 2019-09-12 19:48:13
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