Test Report

FCC ID: VYY-1662

Test Report

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FCCID_3811339

TEST REPORT Reference No..................... : WTN18S03106230W FCC ID.............................. : VYY-1662 Applicant.......................... : Ningbo Dooya Mechanic & Electronic Technology Co.,Ltd. NO.168 shengguang road Luotuo street Zhenhai district Ningbo， Address............................ : P.R.China Manufacturer.................... : Ningbo Dooya Mechanic & Electronic Technology Co.,Ltd. NO.168 shengguang road Luotuo street Zhenhai district Ningbo， Address ................... : P.R.China Product Name.................... : Transmitter Model No. .................... : DC1662G, DC1662 Standards......................... : FCC CFR47 Part 15 Section 15.231: 2017 Date of Receipt sample.... : 2018-03-26 Date of Test...................... : 2018-03-27-2018-03-30 Date of Issue.................... : 2018-04-02 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: Jack Wen /Test Engineer Philo Zhong / Manager Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn Page 1 of 20

Reference No.: WTN18S03106230W Page 2 of 20 1 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) of USA, 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), IC(Industry 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. ElectroMagnetic 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.: WTN18S03106230W Page 3 of 20 1.1 Test Facility A. Accreditations for Conformity Assessment (International) Country/Region Accreditation Body Scope Note USA FCC ID \ DOC \ VOC 1 Canada IC ID \ VOC 2 Japan MIC-T \ MIC-R - A2LA Europe EMCD \ RED - (Certificate No.: 4243.01) Taiwan NCC - Hong Kong OFCA - Australia RCM - India WPC - Thailand International Services NTC - Singapore IDA - Note: 1. FCC Designation No.: CN1201. Test Firm Registration No.: 523476. 2. IC Canada Registration No.: 7760A 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.: WTN18S03106230W Page 4 of 20 2 Contents Page 1 COVER PAGE ...................................................................................................................................... 1 1 LABORATORIES INTRODUCTION ............................................................................................................ 2 1.1 TEST FACILITY ....................................................................................................................................... 3 2 CONTENTS ....................................................................................................................................................... 4 3 REVISION HISTORY ....................................................................................................................................... 5 4 TEST SUMMARY ............................................................................................................................................. 6 5 GENERAL INFORMATION ............................................................................................................................. 7 5.1 GENERAL DESCRIPTION OF E.U.T........................................................................................................ 7 5.2 DETAILS OF E.U.T. ................................................................................................................................ 7 5.3 TEST MODE ........................................................................................................................................... 7 6 EQUIPMENT USED DURING TEST ............................................................................................................. 8 6.1 EQUIPMENTS LIST ................................................................................................................................. 8 6.2 MEASUREMENT UNCERTAINTY.............................................................................................................. 9 6.3 TEST EQUIPMENT CALIBRATION ........................................................................................................... 9 7 RADIATED SPURIOUS EMISSIONS .......................................................................................................... 10 7.1 EUT OPERATION ................................................................................................................................. 10 7.2 TEST SETUP ........................................................................................................................................ 11 7.3 SPECTRUM ANALYZER SETUP ............................................................................................................ 12 7.4 TEST PROCEDURE............................................................................................................................... 13 7.5 SUMMARY OF TEST RESULTS ............................................................................................................. 14 8 PERIODIC OPERATION ............................................................................................................................... 15 9 EMISSION BANDWIDTH .............................................................................................................................. 18 9.1 TEST PROCEDURE............................................................................................................................... 18 9.2 TEST RESULT ...................................................................................................................................... 18 10 ANTENNA REQUIREMENT ......................................................................................................................... 19 11 PHOTOGRAPHS – MODEL DC1662G ....................................................................................................... 20 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 5 of 20 3 Revision History Date of Date of Test report # Receipt Date of Test Purpose Comment Approved Issue sample 2018-03-27 to WTN18S03106230W 2018-03-26 2018-04-02 Original - Valid 2018-03-30 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 6 of 20 4 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 (Exposure of Humans to RF Fields) Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 7 of 20 5 General Information 5.1 General Description of E.U.T. Product Name : Transmitter Model No. : DC1662G, DC1662 : Only the model names are different, the model: DC1662G is the Model Difference tested sample. Hardware version : V1.0 Software version : V1.0 Type of Modulation : FSK Frequency Range : 433.92 MHz The Lowest Oscillator : 433.92MHz Antenna installation : PCB Printed Antenna 5.2 Details of E.U.T. Technical Data : DC 3V by CR2450 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 Lower channel Middle channel Upper channel Transmitting / 433.92MHz / Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 8 of 20 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 EMC Analyzer Agilent E7405A MY45114943 Sep.15,2017 Sep.14,2018 2 Active Loop Antenna Beijing Dazhi ZN30900A - Sep.15,2017 Sep.14,2018 Trilog Broadband 3 SCHWARZBECK VULB9163 336 Apr.19,2017 Apr.18,2018 Antenna Coaxial Cable 4 Top TYPE16(13M) - Sep.15,2017 Sep.14,2018 (below 1GHz) Broad-band Horn 5 SCHWARZBECK BBHA 9120 D 667 Apr.19,2017 Apr.18,2018 Antenna Broad-band Horn 6 SCHWARZBECK BBHA 9170 335 Apr.19,2017 Apr.18,2018 Antenna Broadband COMPLIANCE 7 PAP-1G18 2004 Mar.17,2018 Mar.16,2019 Preamplifier DIRECTION Coaxial Cable 8 Top 1GHz-25GHz EW02014-7 Apr.10,2017 Apr.09,2018 (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 Apr.13, 2017 Apr.12, 2018 Trilog Broadband 2 SCHWARZBECK VULB9160 9160-3325 Apr.09, 2017 Apr.08, 2018 Antenna Compliance 3 Amplifier pirection PAP-0203 22024 Sep.15,2017 Sep.14,2018 systems inc 4 Cable HUBER+SUHNER CBL2 525178 Apr.13, 2017 Apr.12, 2018 RF Conducted Testing Last Calibration Item Equipment Manufacturer Model No. Serial No. Calibration Due Date Date EMC Analyzer 1. Agilent E7405A MY45114943 Sep.15,2017 Sep.14,2018 (9k~26.5GHz) Spectrum Analyzer 2. R&S FSL6 100959 Sep.12, 2017 Sep.11, 2018 (9k-6GHz) Signal Analyzer 3. Agilent N9010A MY50520207 Apr.29, 2017 Apr.28, 2018 (9k~26.5GHz) Coaxial Cable 4. / / / Sep.12,2017 Sep.11,2018 (10Hz-30GHz) 5. Antenna Connector* / / / Sep.12,2017 Sep.11,2018 ”*”: The temporary antenna connector is soldered on the PCB board in order to perform conducted tests Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 9 of 20 and this temporary antenna connector is listed in the equipment list. 6.2 Measurement Uncertainty Test Item Frequency Range Uncertainty Note Conducted Emissions 150kHz~30MHz ±3.64dB (1) Radiated Spurious 30MHz~1000MHz ±5.03dB (1) Emissions 1000M~5000MHz ± 5.47 dB (1) (1)This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of 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.: WTN18S03106230W Page 10 of 20 7 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 7.1 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.: WTN18S03106230W Page 11 of 20 7.2 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.: WTN18S03106230W Page 12 of 20 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 7.3 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.: WTN18S03106230W Page 13 of 20 7.4 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.: WTN18S03106230W Page 14 of 20 7.5 Summary of Test Results Test Frequency : 30MHz ~ 5GHz 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 84.89 336 1.1 H -7.31 77.58 100.82 -23.24 433.92 86.22 28 1.4 V -7.31 78.91 100.82 -21.91 867.84 55.78 344 1.9 H 0.04 55.82 80.82 -25.00 867.84 53.91 158 1.7 V 0.04 53.95 80.82 -26.87 1816.80 56.47 139 1.7 H -14.38 40.09 74.00 -33.91 1816.80 53.73 355 1.3 V -14.38 37.35 74.00 -36.65 2725.20 56.64 38 2.0 H -12.87 41.77 74.00 -32.23 2725.20 57.99 256 1.3 V -12.87 43.12 74.00 -30.88 AV = Peak +20Log10(duty cycle) =PK+(-7.52) [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 77.58 H -7.52 70.06 80.82 -10.76 433.92 78.91 V -7.52 71.39 80.82 -9.43 867.84 55.82 H -7.52 48.30 60.82 -12.52 867.84 53.95 V -7.52 46.43 60.82 -14.39 1816.80 40.09 H -7.52 32.57 54.00 -21.43 1816.80 37.35 V -7.52 29.83 54.00 -24.17 2725.20 41.77 H -7.52 34.25 54.00 -19.75 2725.20 43.12 V -7.52 35.60 54.00 -18.40 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 15 of 20 8 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) 4.81+0.33*21+0.69*19=24.85 Length of a complete transmission period(ms) 59.08 Duty Cycle(%) 42.06 Duty Cycle Correction Factor(dB) -7.52 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 when the radiated emission limits are expressed in terms of the average value of the emission, and pulsed operation is employed, the measurement field strength shall be determined by averaging over one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1 seconds. Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 16 of 20 Pulse 1 Pulse 2 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 17 of 20 Pulse 3 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.: WTN18S03106230W Page 18 of 20 9 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. 9.1 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 30kHz RBW and 100kHz VBW. The 20 dB bandwidth was recorded. 9.2 Test Result Frequency 20 dB Bandwidth Limit Result (MHz) Emission(KHz) (KHz) 433.92 126.70 1084.80 Pass Limit=Center Frequency*0.25% Test Plot Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 19 of 20 10 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. The use of a permanently attached antenna to the intentional radiator shall be considered sufficient to comply with the provisions of this section. This product use a PCB printed antenna, it only apply to this model, fulfill the requirement of this section. ANT Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

Reference No.: WTN18S03106230W Page 20 of 20 11 Photographs – Model DC1662G Please refer to the file Please refer to the file “DC1662G_Tsup Photos”, “DC1662G_Ext Photos” and “DC1662G_Int Photos” . ======End of Report====== Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn


Document Created: 2018-04-10 13:15:52
Document Modified: 2018-04-10 13:15:52
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