Test Report 433M

FCC ID: 2AAV8VP-K

Test Report

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FCCID_4210279

TEST REPORT Reference No..................... : WTS18S10126788-2W FCC ID.............................. : 2AAV8VP-K Applicant.......................... : SHENZHEN QIAOHUA INDUSTRIES LIMITED Room 301, No.building, Qiaohua Industrial Park, Luotian forestry Address............................ : center, Yanchuan, Yanluo town, Bao An, Shenzhen, China Manufacturer.................... : The same as above Address............................ : The same as above Product Name.................. : Video Doorbell Model(s). : VP-K, VP-K1, VP-K2, VP-W1, VP-W1 Brand Name : QUHWA Standards......................... : FCC CFR47 Part 15 Section 15.231: 2016 Date of Receipt sample.... : 2018-10-22 Date of Test...................... : 2018-10-23 to 2018-11-14 Date of Issue.................... : 2018-11-15 Test Result....................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Services (Shenzhen) Co., Ltd. Address: 1/F., Fukangtai Building, West Baima Road, Songgang Street, Baoan District, Shenzhen, Guangdong, China Tel :+86-755-83551033 Fax:+86-755-83552400 Compiled by: Approved by: Ford Wang /Test Engineer Philo Zhong / Manager Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn Page 1 of 21

Reference No.: WTS18S10126788-2W Page 2 of 21 2 Laboratories Introduction Waltek Services (Shenzhen) Co., Ltd is a professional third-party testing and certification laboratory with multi-year product testing and certification experience, established strictly in accordance with ISO/IEC 17025 requirements, and accredited by ILAC (International Laboratory Accreditation Cooperation) member. A2LA (American Association for Laboratory Accreditation, the certification number is 4243.01) of USA, CNAS (China National Accreditation Service for Conformity Assessment, the registration number is L3110) of China. Meanwhile, Waltek has got recognition as registration and accreditation laboratory from EMSD (Electrical and Mechanical Services Department), and American Energy star, FCC (The Federal Communications Commission), CEC (California energy efficiency), ISED (Innovation, Science and Economic Development Canada). It’s the strategic partner and data recognition laboratory of international authoritative organizations, such as Intertek (ETL-SEMKO), TÜV Rheinland, TÜV SÜD, etc. Waltek Services (Shenzhen) Co., Ltd is one of the largest and the most comprehensive third party testing laboratory in China. Our test capability covered four large fields: safety test. Electro Magnetic Compatibility (EMC), and energy performance, wireless radio. As a professional, comprehensive, justice international test organization, we still keep the scientific and rigorous work attitude to help each client satisfy the international standards and assist their product enter into globe market smoothly. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 3 of 21 Test Facility: A. Accreditations for Conformity Assessment (International) Country/Region Scope Covered By Scope Note USA FCC ID \ DOC \ VOC 1 Canada IC ID \ VOC 2 Japan MIC-T \ MIC-R - Europe EMCD \ RED - Taiwan NCC - ISO/IEC 17025 Hong Kong OFCA - Australia RCM - India WPC - Thailand NTC - Singapore IDA - Note: 1. FCC Designation No.: CN1201. Test Firm Registration No.: 523476. 2. ISED CAB identifier: CN0013 B. TCBs and Notify Bodies Recognized Testing Laboratory. Recognized Testing Laboratory of … Notify body number TUV Rheinland Intertek Optional. TUV SUD SGS Phoenix Testlab GmbH 0700 Element Materials Technology Warwick Ltd 0891 Timco Engineering, Inc. 1177 Eurofins Product Service GmbH 0681 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 4 of 21 3 Contents Page 1 COVER PAGE ......................................................................................................................................1 2 LABORATORIES INTRODUCTION .............................................................................................................. 2 3 CONTENTS ....................................................................................................................................................... 4 4 REVISION HISTORY ....................................................................................................................................... 5 5 GENERAL INFORMATION ............................................................................................................................. 6 5.1 GENERAL DESCRIPTION OF E.U.T........................................................................................................ 6 5.2 DETAILS OF E.U.T. ................................................................................................................................ 6 5.3 TEST MODE ........................................................................................................................................... 6 6 EQUIPMENT USED DURING TEST ............................................................................................................. 7 6.1 EQUIPMENTS LIST ................................................................................................................................. 7 6.2 MEASUREMENT UNCERTAINTY.............................................................................................................. 8 6.3 TEST EQUIPMENT CALIBRATION ........................................................................................................... 8 7 TEST SUMMARY ............................................................................................................................................. 9 8 RADIATED SPURIOUS EMISSIONS .......................................................................................................... 10 8.1 EUT OPERATION ................................................................................................................................. 10 8.2 TEST SETUP ........................................................................................................................................ 11 8.3 SPECTRUM ANALYZER SETUP ............................................................................................................ 12 8.4 TEST PROCEDURE ............................................................................................................................... 13 8.5 SUMMARY OF TEST RESULTS ............................................................................................................. 14 9 PERIODIC OPERATION ............................................................................................................................... 15 10 EMISSION BANDWIDTH .............................................................................................................................. 18 10.1 TEST PROCEDURE ............................................................................................................................... 18 10.2 TEST RESULT ...................................................................................................................................... 18 11 ANTENNA REQUIREMENT ......................................................................................................................... 19 12 PHOTOGRAPHS – MODEL VP-K TEST SETUP ..................................................................................... 20 12.1 PHOTOGRAPH – RADIATION SPURIOUS EMISSION TEST SETUP ........................................................ 20 13 PHOTOGRAPHS OF TEST SETUP AND EUT. ........................................................................................ 21 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 5 of 21 4 Revision History Date of Date of Date of Approve Test report No. Receipt Purpose Comment Test Issue d sample 2018-10-23 WTS18S10126788 2018-10-22 to 2018-11- 2018-11-15 original - Valid -2W 14 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 6 of 21 5 General Information 5.1 General Description of E.U.T. Product Name: Video Doorbell Model No.: VP-K, VP-K1, VP-K2, VP-W1, VP-W1 Model Difference: Only different for the model names. Type of Modulation: ASK Frequency Range: 433.92 MHz The Lowest Oscillator: 433.92 MHz Antenna installation: Integrated Antenna 5.2 Details of E.U.T. Ratings: DC 9V/1A～24V/0.5A AC 8V/1A～16V/1A 5.3 Test Mode All test mode(s) and condition(s) mentioned were considered and evaluated respectively by performing full tests, the worst data were recorded and reported. Test mode channel Transmitting 433.92MHz Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 7 of 21 6 Equipment Used during Test 6.1 Equipments List 3m Semi-anechoic Chamber for Radiation Emissions Test site 1# Last Calibration Item Equipment Manufacturer Model No. Serial No. Calibration Due Date Date 1 Spectrum Analyzer R&S FSP 100091 2018-04-29 2019-04-28 2 Amplifier Agilent 8447D 2944A10178 2018-04-09 2019-04-08 3 Active Loop Antenna Beijing Dazhi ZN30900A 0703 2018-04-09 2019-04-08 Trilog Broadband 4 SCHWARZBECK VULB9163 336 2018-09-12 2019-09-11 Antenna Coaxial Cable 5 Top TYPE16(13M) - 2018-04-09 2019-04-08 (below 1GHz) Broad-band Horn 6 SCHWARZBECK BBHA 9120 D 667 2018-04-09 2019-04-08 Antenna Broadband COMPLIANCE 7 PAP-1G18 2004 2018-04-13 2019-04-12 Preamplifier DIRECTION Coaxial Cable 8 Top 1GHz-18GHz EW02014-7 2018-04-13 2019-04-12 (above 1GHz) 3m Semi-anechoic Chamber for Radiation Emissions Test site 2# Last Calibration Item Equipment Manufacturer Model No. Serial No Calibration Due Date Date 1 Test Receiver R&S ESCI 101296 2018-04-13 2019-04-12 Trilog Broadband 2 SCHWARZBECK VULB9160 9160-3325 2018-04-09 2019-04-08 Antenna 3 Amplifier ANRITSU MH648A M43381 2018-04-13 2019-04-12 4 Cable HUBER+SUHNER CBL2 525178 2018-04-13 2019-04-12 RF Conducted Testing Last Calibration Item Equipment Manufacturer Model No. Serial No. Calibration Due Date Date EMC Analyzer 1. Agilent E7405A MY45114943 2018-09-12 2019-09-11 (9k~26.5GHz) Spectrum Analyzer 2. R&S FSL6 100959 2018-09-12 2019-09-11 (9k-6GHz) Signal Analyzer 3. Agilent N9010A MY50520207 2018-09-12 2019-09-11 (9k~26.5GHz) Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 8 of 21 6.2 Measurement Uncertainty Parameter Uncertainty Conducted Emission ± 3.64 dB(AC mains 150KHz~30MHz) ± 5.08 dB (Bilog antenna 30M~1000MHz) Radiated Spurious Emissions ± 5.47 dB (Horn antenna 1000M~25000MHz) Radio Frequency ± 1 x 10-7Hz RF Power ± 0.42 dB RF Power Density ± 0.7dB Conducted Spurious Emissions ± 2.76 dB (9kHz~26500MHz) Confidence interval：95%. Confidence factor:k=2 6.3 Test Equipment Calibration All the test equipments used are valid and calibrated by CEPREI Certification Body that address is No.110 Dongguan Zhuang RD. Guangzhou, P.R.China. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 9 of 21 7 Test Summary Test Items Test Requirement Result 15.205(a) Radiated Spurious Emissions 15.209 PASS 15.231(a) Periodic Operation 15.231(a) PASS Emission Bandwidth 15.231(c) PASS Antenna Requirement 15.203 PASS Maximum Permissible Exposure 1.1307(b)(1) PASS Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 10 of 21 8 Radiated Spurious Emissions Test Requirement: FCC Part15 Paragraph 15.231(a) Test Method: ANSI C63.10:2013 Test Result: PASS Measurement Distance: 3m Limit: Field Strength Field Strength Fundamental Field Strength Field Strength of Spurious of Spurious Frequency of Fundamental of Fundamental Emission Emission (MHz) (uV/m) (dBuV/m) (uV/m) (dBuV/m) 44.66-40.70 2250 67 225 47 70-130 1250 62 125 42 130-174 1250 to 3750 62 to 71.48 125 to 375 42 to 51.48 174-260 3750 71.48 375 51.48 260-470 3750 to 12500 71.48 to 81.94 375 to 1250 51.48 to 61.94 Above 470 12500 81.94 1250 61.94 aa** linear interpolations 8.1 EUT Operation Operating Environment : Temperature: 23.5 °C Humidity: 51.1 % RH Atmospheric Pressure: 101.2kPa EUT Operation : The test was performed in transmitting mode, the test data were shown in the report. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 11 of 21 8.2 Test Setup The radiated emission tests were performed in the 3m Semi- Anechoic Chamber test site, using the setup accordance with the ANSI C63.10. The test setup for emission measurement below 30MHz. Semi-anechoic 3m Chamber Turn Table From 0°to 360° 3m EUT Turn Table 0.8m PC Spectrum AMP Combining System Analyzer Network The test setup for emission measurement from 30 MHz to 1 GHz. Semi-anechoic 3m Chamber Antenna Elevation Varies From 1 to 4 m Turn Table From 0°to 360° 3m EUT 0.8m Turn Table PC Spectrum AMP Combining System Analyzer Network Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 12 of 21 The test setup for emission measurement above 1 GHz. Anechoic 3m Chamber Antenna Elevation Varies From 1 to 4 m Turn Table From 0°to 360° 3m EUT 1.5m Turn Table Absorbers PC Spectrum AMP Combining System Analyzer Network 8.3 Spectrum Analyzer Setup Below 30MHz Sweep Speed .............................................. Auto IF Bandwidth ................................................ 10kHz Video Bandwidth.......................................... 10kHz Resolution Bandwidth.................................. 10kHz 30MHz ~ 1GHz Sweep Speed .............................................. Auto Detector ..................................................... PK Resolution Bandwidth .................................. 100kHz Video Bandwidth.......................................... 300kHz Above 1GHz Sweep Speed .............................................. Auto Detector ..................................................... PK Resolution Bandwidth .................................. 1MHz Video Bandwidth.......................................... 3MHz Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 13 of 21 8.4 Test Procedure 1. The EUT is placed on a turntable. For below 1GHz, the EUT is 0.8m above ground plane; For above1GHz, the EUT is 1.5m above ground plane. 2. The turntable shall be rotated for 360 degrees to determine the position of maximum emission level. 3. EUT is set 3m away from the receiving antenna, which is moved from 1m to 4m to find out the maximum emissions. The spectrum was investigated from the lowest radio frequency signal generated in the device, without going below 9 kHz, up to the tenth harmonic of the highest fundamental frequency or to 40 GHz, whichever is lower. 4. Maximum procedure was performed on the six highest emissions to ensure EUT compliance. 5. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. 6. Repeat above procedures until the measurements for all frequencies are complete. 7. The radiation measurements are tested under 3-axes(X, Y, Z) position(X denotes lying on the table, Y denotes side stand and Z denotes vertical stand), After pre-test, It was found that the worse radiation emission was get at the X position. So the data shown was the X position only. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 14 of 21 8.5 Summary of Test Results Test Frequency: 30MHz ~ 6GHz High channel: 433.92MHz FCC Part Receiver Turn RX Antenna Corrected Corrected 15.231/15.209/205 Frequency Reading table Factor Amplitude (PK) Angle Height Polar Limit Margin (PK) (dBμV/ (MHz) (dBμV) Degree (m) (H/V) (dB/m) (dBμV/m) (dB) m) 433.92 55.47 124 1.2 H -10.44 45.03 100.83 -55.80 433.92 72.33 146 1.8 V -10.44 61.89 100.83 -38.94 867.84 42.64 95 1.1 H 2.46 45.10 80.83 -35.73 867.84 50.73 252 1.9 V 2.46 53.19 80.83 -27.64 2135.00 50.32 171 1.4 H -14.76 35.56 74.00 -38.44 2135.00 44.89 169 1.3 V -14.76 30.13 74.00 -43.87 5850.00 42.42 55 1.1 H -2.09 40.33 74.00 -33.67 5850.00 48.73 203 1.7 V -2.09 46.64 74.00 -27.36 AV = Peak +20Log10(duty cycle) =PK+(-9.29) [refer to section 8 for more detail] FCC Part 15.231/209/205 RX Duty cycle Calculated Frequency PK Antenna Factor AV Limit Margin Polar (MHz) (dBμV/m) (H/V) (dB) (dBμV/m) (dBμV/m) (dB) 433.92 45.03 H -9.29 35.74 80.83 -45.09 433.92 61.89 V -9.29 52.6 80.83 -28.23 867.84 45.10 H -9.29 35.81 60.83 -25.02 867.84 53.19 V -9.29 43.9 60.83 -16.93 2135.00 35.56 H -9.29 26.27 54.00 -27.73 2135.00 30.13 V -9.29 20.84 54.00 -33.16 5850.00 40.33 H -9.29 31.04 54.00 -22.96 5850.00 46.64 V -9.29 37.35 54.00 -16.65 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 15 of 21 9 Periodic Operation The duty cycle was determined by the following equation: To calculate the actual field intensity, The duty cycle correction factor in decibel is needed for later use and can be obtained from following conversion Duty Cycle(%)=Total On interval in a complete pulse train/ Length of a complete pulse train * % Duty Cycle Correction Factor(dB)=20 * Log10(Duty Cycle(%)) Total transmission time(ms) 1.32*12+0.32*13=20 Length of a complete transmission period(ms) 58.28 Duty Cycle(%) 34.32 Duty Cycle Correction Factor(dB) -9.29 Refer to the duty cycle plot (as below),This device meets the FCC requirement. Length of a complete pulse train: Remark: FCC part15.35(c) required that a complete pulse train is more than 0.1 seconds, the measured field strength shall be determined from the average absolute voltage during a 0.1 second interval during which the field strength is at its maximum value. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 16 of 21 Pulse 1 Pulse 2 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 17 of 21 FCC Part15.231(a)(1) A manually operated transmitter shall employ a switch that will automatically deactivate the transmitter within not more than 5 seconds of being released. (2)A transmitter activated automatically shall cease transmission within 5 seconds after activation. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 18 of 21 10 Emission Bandwidth Test Requirement: FCC Part15.231(c) Test Method: FCC Part15.231(c) Limit The bandwidth of the emission shall be no wider than 0.25% of the center frequency for devices operating above 70 MHz and below 900 MHz. For devices operating above 900 MHz, the emission shall be no wider than 0.5% of the center frequency. 10.1 Test Procedure 1. The transmitter output (antenna port) was connected to the spectrum analyzer.EUT and its simulators are placed on a table, let EUT working in test mode, then test it. 2. The bandwidth of the fundamental frequency was measure by spectrum analyser with 1kHz RBW and 3kHz VBW. The 20 dB bandwidth was recorded. 10.2 Test Result Frequency 20dB Bandwidth Limit Result (MHz) Emission(KHz) (KHz) 433.92 52.69 1084.80 Compliance Limit=Center Frequency*0.25% Test Plot Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 19 of 21 11 Antenna Requirement According to the FCC Part 15 Paragraph 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. This product has an integrated antenna fulfill the requirement of this section. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 20 of 21 12 Photographs – Model VP-K Test Setup 12.1 Photograph – Radiation Spurious Emission Test Setup From 30MHz to 1GHz From 1GHz to 6GHz Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTS18S10126788-2W Page 21 of 21 13 Photographs of test setup and EUT. Note: Please refer to appendix: WTS18S10126788W_Photo. ======End of Report====== Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn


Document Created: 2019-03-25 21:46:56
Document Modified: 2019-03-25 21:46:56
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