Test Report

FCC ID: 2ADYY-KB8

Test Report

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FCCID_4193957

FCC PART 15B, CLASS B TEST REPORT For TECNO MOBILE LIMITED ROOM 604 6/F SOUTH TOWER WORLD FINANCE CTR HARBOUR CITY 17 CANTON ROAD TST KL, Hong Kong FCC ID: 2ADYY-KB8 Report Type: Product Type: Original Report Mobile phone Report Number: RSZ190123005-00A Report Date: 2019-03-06 Rocky Kang Reviewed By: RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*”.

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A TABLE OF CONTENTS GENERAL INFORMATION .......................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .....................................................................................3 OBJECTIVE ...................................................................................................................................................................3 RELATED SUBMITTAL(S)/GRANT(S) .............................................................................................................................3 TEST METHODOLOGY ..................................................................................................................................................3 MEASUREMENT UNCERTAINTY ....................................................................................................................................4 TEST FACILITY .............................................................................................................................................................4 SYSTEM TEST CONFIGURATION ..........................................................................................................................5 DESCRIPTION OF TEST CONFIGURATION ......................................................................................................................5 EUT EXERCISE SOFTWARE ..........................................................................................................................................5 SPECIAL ACCESSORIES .................................................................................................................................................5 EQUIPMENT MODIFICATIONS .......................................................................................................................................5 SUPPORT EQUIPMENT LIST AND DETAILS ....................................................................................................................5 EXTERNAL I/O CABLE..................................................................................................................................................6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................6 SUMMARY OF TEST RESULTS ...............................................................................................................................7 TEST EQUIPMENT LIST ...........................................................................................................................................8 FCC §15.107 – AC LINE CONDUCTED EMISSIONS .............................................................................................9 APPLICABLE STANDARD ..............................................................................................................................................9 EUT SETUP ..................................................................................................................................................................9 EMI TEST RECEIVER SETUP .........................................................................................................................................9 TEST PROCEDURE ........................................................................................................................................................9 CORRECTED FACTOR & MARGIN CALCULATION .......................................................................................................10 TEST RESULTS SUMMARY ..........................................................................................................................................10 TEST DATA ................................................................................................................................................................10 FCC §15.109 - RADIATED SPURIOUS EMISSIONS ............................................................................................13 APPLICABLE STANDARD ............................................................................................................................................13 EUT SETUP ................................................................................................................................................................13 EMI TEST RECEIVER SETUP .......................................................................................................................................14 TEST PROCEDURE ......................................................................................................................................................14 CORRECTED AMPLITUDE & MARGIN CALCULATION .................................................................................................14 TEST RESULTS SUMMARY ..........................................................................................................................................14 TEST DATA ................................................................................................................................................................15 FCC Part 15B, Class B Page 2 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A GENERAL INFORMATION Product Description for Equipment under Test (EUT) Product Mobile phone Tested Model KB8 Voltage Range DC 3.8 V from battery or DC 5.0V from adapter Measure 155 mm (L) * 75 mm (W) * 8 mm (H) Highest operating frequency 2690 MHz Date of Test Jan 29, 2019~ Feb.06, 2019 Sample serial number 190123005 Received date 2019-01-23 Sample/EUT Status Good condition Model: CU-52JT Adapter information Input: AC 100-240V, 50/60Hz, 200mA Output: DC 5.0V, 1.2A Objective This test report is prepared on behalf of TECNO MOBILE LIMITED in accordance with Part 2-Subpart J, Part 15-Subparts A, B of the Federal Communication Commissions rules. The objective of the manufacturer is to determine the compliance of the EUT with FCC Part 15 B. Related Submittal(s)/Grant(s) FCC Part 15.247 DSS&DTS and FCC Part 22H&24E&27 PCE submissions with FCC ID: 2ADYY-KB8. Test Methodology All measurements contained in this report were conducted with ANSI C63.4-2014, American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the range of 9 kHz to 40 GHz. All emissions measurement was performed at Bay Area Compliance Laboratories Corp. (Shenzhen). The radiated testing was performed at an antenna-to-EUT distance of 3 meters. FCC Part 15B, Class B Page 3 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A Measurement Uncertainty Parameter uncertainty Conducted Emissions ±1.95dB Radiated Below 1GHz ±4.75dB Emissions Above 1GHz ±4.88dB Note: Otherwise required by the applicant or Product Regulations, Decision Rule in this report did not consider the uncertainty. Test Facility The Test site used by Bay Area Compliance Laboratories Corp. (Shenzhen) to collect test data is located on the 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China. The test site has been approved by the FCC under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No.: 342867, the FCC Designation No.: CN1221. The test site has been registered with ISED Canada under ISED Canada Registration Number 3062B. FCC Part 15B, Class B Page 4 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A SYSTEM TEST CONFIGURATION Description of Test Configuration The system was configured for testing in a manufacturer testing fashion. EUT operation mode: Downloading (data transfer with computer) EUT Exercise Software “BurnIn test v5.3” exercise software was used. Special Accessories No special accessory. Equipment Modifications No modification was made to the EUT tested. Support Equipment List and Details Manufacturer Description Model Serial Number DELL Host PC DCSCSF 127BP2X DELL Monitor TFT1560PS ALA560806C160409 Microsoft Keyboard 1406 0200706128743 DELL Mouse MOC5UO G1900NKD SAST Modem AEM-2100 0293 Kingston Micro SD card 1 GB 201 FCC Part 15B, Class B Page 5 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A External I/O Cable Cable Description Length (m) From/Port To Un-Shielding Detachable USB Cable 1.5 Host PC Mouse Shielding Detachable Serial Cable 1.2 Host PC Modem Shielding Detachable K/B Cable With 1.5 Host PC Keyboard Magnet Ring Shielding Detachable VGA Cable 1.5 Host PC LCD Monitor Un-Shielding Detachable USB Cable 1.0 EUT Host PC With Ferrite Core Un-shielding Detachable Earphone Cable 1.2 EUT Earphone Block Diagram of Test Setup For conducted emission: Modem Adapter LISN 2 LISN 1 Modem Monitor PC EUT 10cm 10cm 10cm Micro SD Earphone card 1.0 meter Non-Conductive Table 80 cm above Ground Plane Keyboard Mouse 10cm 1.5 meters FCC Part 15B, Class B Page 6 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A SUMMARY OF TEST RESULTS FCC Rules Description of Test Results §15.107 AC Line Conducted Emissions Compliance §15.109 Radiated Spurious Emissions Compliance FCC Part 15B, Class B Page 7 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A TEST EQUIPMENT LIST Serial Calibration Calibration Manufacturer Description Model Number Date Due Date AC Line Conducted Emission Test Rohde & Schwarz EMI Test Receiver ESCS30 100176 2018-07-11 2019-07-11 3560.6650.12- Rohde & Schwarz LISN ENV216 2018-12-21 2019-12-21 101613-Yb Rohde & Schwarz Transient Limiter ESH3Z2 DE25985 2018-11-12 2019-11-12 Rohde & Schwarz CE Test software EMC 32 V8.53.0 NCR NCR Conducted Emission UF A210B-1- Unknown 78652 2018-11-12 2019-11-12 Cable 0720-504504 Radiated Emission Test A.H.System Horn Antenna SAS-200/571 135 2018-09-01 2021-08-31 Rohde & Schwarz Signal Analyzer FSEM 845987/005 2018-06-23 2019-06-23 Sunol Sciences Broadband Antenna JB1 A040904-1 2017-12-22 2020-12-21 COM-POWER Pre-amplifier PA-122 181919 2018-11-12 2019-11-12 Sonoma instrument Amplifier 310N 186238 2018-11-12 2019-11-12 Rohde & Schwarz EMI Test Receiver ESCI 101120 2019-01-11 2020-01-11 Ducommun UFA147A- MFR64639 RF Cable 2018-07-11 2021-07-10 technologies 2362-100100 231029-003 Ducommun RF Cable 104PEA 218124002 2018-11-12 2019-11-12 technologies Ducommun RF Cable RG-214 1 2018-11-19 2019-05-21 technologies Ducommun RF Cable RG-214 2 2018-11-12 2019-11-12 technologies * Statement of Traceability: Bay Area Compliance Laboratories Corp. (Shenzhen) attests that all calibrations have been performed in accordance to requirements that traceable to National Primary Standards and International System of Units (SI). FCC Part 15B, Class B Page 8 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A FCC §15.107 – AC LINE CONDUCTED EMISSIONS Applicable Standard According to FCC §15.107 EUT Setup The measurement procedure of EUT setup is according with per ANSI C63.4-2014. The related limit was specified in FCC Part 15.107 Class B. The spacing between the peripherals was 10 cm. EMI Test Receiver Setup The EMI test receiver was set to investigate the spectrum from 150 kHz to 30 MHz. During the conducted emission test, the EMI test receiver was set with the following configurations: Frequency Range IF B/W 150 kHz – 30 MHz 9 kHz Test Procedure During the conducted emission test, the host PC was connected to the first LISN and the other relevant equipments were conncected to the second LISN. Maximizing procedure was performed on the six (6) highest emissions of the EUT. All data was recorded in the Quasi-peak and average detection mode. FCC Part 15B, Class B Page 9 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A Corrected Factor & Margin Calculation The Corrected factor is calculated by adding LISN/ISN VDF (Voltage Division Factor), Cable Loss and Transient Limiter Attenuation. The basic equation is as follows: Correction Factor = LISN VDF + Cable Loss + Transient Limiter Attenuation The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of 7 dB means the emission is 7 dB below the limit. The equation for margin calculation is as follows: Margin = Limit – Corrected Amplitude Test Results Summary According to the recorded data in following table, the EUT complied with the FCC Part 15.107, Refer to CISPR16-4-2:2011 and CISPR 16-4-1:2009, the measured level is in compliance with the limit if Lm + U(Lm) ≤ Llim + Ucispr In BACL., U(Lm) is less than Ucispr, if Lm is less than Llim, it implies that the EUT complies with the limit. Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 56 % ATM Pressure: 101.0 kPa The testing was performed by Haiguo Li on 2019-01-30. FCC Part 15B, Class B Page 10 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A EUT Operation Mode: Downloading AC 120V/60 Hz, Line 90 80 70 QP 60 Level in dBμ AV 50 40 30 20 10 0 150k 300 400 500 800 1M 2M 3M 4M 5M 6 8 10M 20M 30M Frequency in Hz Corrected Correction Frequency Limit Margin Detector Amplitude Factor (MHz) (dBμV) (dB) (PK/Ave./QP) (dBμV) (dB) 0.286500 41.8 19.8 60.6 18.8 QP 0.305470 43.4 19.8 60.1 16.7 QP 0.321170 42.3 19.8 59.7 17.4 QP 16.068250 41.3 20.2 60.0 18.7 QP 16.463650 43.5 20.2 60.0 16.5 QP 17.472410 40.8 20.2 60.0 19.2 QP 0.286500 35.6 19.8 50.6 15 Ave. 0.305470 37.6 19.8 50.1 12.5 Ave. 0.321170 36.8 19.8 49.7 12.9 Ave. 16.068250 34.1 20.2 50.0 15.9 Ave. 16.463650 33.7 20.2 50.0 16.3 Ave. 17.472410 30.5 20.2 50.0 19.5 Ave. FCC Part 15B, Class B Page 11 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A AC 120V/60 Hz, Neutral 90 80 70 QP 60 Level in dBμ AV 50 40 30 20 10 0 150k 300 400 500 800 1M 2M 3M 4M 5M 6 8 10M 20M 30M Frequency in Hz Corrected Correction Frequency Limit Margin Detector Amplitude Factor (MHz) (dBμV) (dB) (PK/Ave./QP) (dBμV) (dB) 0.297470 43.4 19.8 60.3 16.9 QP 0.321110 42.3 19.7 59.7 17.4 QP 0.352690 40.6 19.7 58.9 18.3 QP 15.988910 41.7 20.2 60.0 18.3 QP 16.345090 43.6 20.2 60.0 16.4 QP 17.512830 40.9 20.2 60.0 19.1 QP 0.297470 37.2 19.8 50.3 13.1 Ave. 0.321110 37.6 19.7 49.7 12.1 Ave. 0.352690 33.4 19.7 48.9 15.5 Ave. 15.988910 32.6 20.2 50.0 17.4 Ave. 16.345090 34.2 20.2 50.0 15.8 Ave. 17.512830 30.4 20.2 50.0 19.6 Ave. Note: 1) Correction Factor =LISN VDF (Voltage Division Factor) + Cable Loss + Transient Limiter Attenuation 2) Corrected Amplitude = Reading + Correction Factor 3) Margin = Limit – Corrected Amplitude FCC Part 15B, Class B Page 12 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A FCC §15.109 - RADIATED SPURIOUS EMISSIONS Applicable Standard FCC §15.109 EUT Setup Below 1GHz: Above 1GHz: 1m or The radiated emission tests were performed in the 3 meters chamber test site, using the setup accordance with the ANSI C63.4-2014. The specification used was the FCC Part 15.109 Class B limits. FCC Part 15B, Class B Page 13 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle. The spacing between the peripherals was 10 cm. EMI Test Receiver Setup The system was investigated from 30 MHz to 13.5 GHz. During the radiated emission test, the EMI test receiver was set with the following configurations: Frequency Range RBW Video B/W IF B/W Measurment 30 MHz – 1000 MHz 100 kHz 300 kHz 120 kHz QP 1MHz 3 MHz / PK Above 1 GHz 1MHz 10 Hz / Ave. Test Procedure Maximizing procedure was performed on the highest emissions to ensure that the EUT complied with all installation combinations. All data was recorded in the Quasi-peak detector mode from 30 MHz to 1 GHz and PK and average detector modes for frequencies above 1 GHz. Corrected Amplitude & Margin Calculation The Corrected Amplitude is calculated by adding the Antenna Factor and Cable Loss, and subtracting the Amplifier Gain from the Meter Reading. The basic equation is as follows: Corrected Amplitude = Meter Reading + Antenna Factor + Cable Loss - Amplifier Gain The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of 7 dB means the emission is 7 dB below the limit. The equation for margin calculation is as follows: Margin = Limit – Corrected Amplitude Test Results Summary According to the data in the following table, the EUT complied with the FCC §15.109 Class B, Refer to CISPR16-4-2:2011 and CISPR 16-4-1:2009, the measured level is in compliance with the limit if Lm + U(Lm) ≤ Llim + Ucispr In BACL, U(Lm) is less than Ucispr, if Lm is less than Llim, it implies that the EUT complies with the limit. FCC Part 15B, Class B Page 14 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 56 % ATM Pressure: 101.0 kPa The testing was performed by Tracy Hu on 2019-01-29 and 2019-03-06. EUT Operation Mode: Downloading FCC Part 15B, Class B Page 15 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A 30 MHz~1 GHz: 80 70 60 FCC Part 15 Class B Electric Field Strength QP-3m 50 Level in dB¦ÌV/ 40 30 20 10 0 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz Corrected Antenna Turntable Correction Frequency Antenna Limit Margin Amplitude height position Factor (MHz) Polarity (dBμV/m) (dB) (dBμV/m) (cm) (degree) (dB/m) 33.392750 25.05 138.0 V 71.0 -9.6 40.00 14.95 37.787250 27.35 102.0 V 340.0 -12.4 40.00 12.65 62.241375 24.98 194.0 V 94.0 -20.3 40.00 15.02 81.064000 25.35 141.0 V 269.0 -19.9 40.00 14.65 174.154375 31.88 217.0 H 284.0 -15.1 43.50 11.62 301.760625 34.72 106.0 V 16.0 -10.6 46.00 11.28 FCC Part 15B, Class B Page 16 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A 1 GHz – 13.5 GHz: Receiver Rx Antenna Corrected Corrected FCC Part 15B Frequency Turntable Factor Amplitude (MHz) Reading Degree Height Polar PK/QP/Ave. (dB/m) (dBuV/m) Limit Margin (dBμV) (m) (H / V) (dBuV/m) (dB) 1689.00 40.36 PK 85 2.4 H -1.87 38.49 74 35.51 1689.00 27.90 Ave. 85 2.4 H -1.87 26.03 54 27.97 1689.00 40.26 PK 60 1.9 V -1.87 38.39 74 35.61 1689.00 27.84 Ave. 60 1.9 V -1.87 25.97 54 28.03 2963.90 41.70 PK 268 2.2 H 2.31 44.01 74 29.99 2963.90 28.20 Ave. 268 2.2 H 2.31 30.51 54 23.49 2963.90 41.36 PK 52 2.3 V 2.31 43.67 74 30.33 2963.90 28.07 Ave. 52 2.3 V 2.31 30.38 54 23.62 Note: 1) Correction Factor=Antenna factor (RX) + cable loss – amplifier factor 2) Corrected Amplitude = Correction Factor + Reading 3) Margin = Limit - Corrected Amplitude FCC Part 15B, Class B Page 17 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A Pre-scan for peak Horizontal – Peak (1-13.5 GHz) Vertical - Peak (1-13.5 GHz) FCC Part 15B, Class B Page 18 of 19

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190123005-00A Horizontal – Average Vertical – Average ***** END OF REPORT ***** FCC Part 15B, Class B Page 19 of 19


Document Created: 2019-03-06 20:59:06
Document Modified: 2019-03-06 20:59:06
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