Test Report

FCC ID: ZBCAC47CM1

Test Report

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FCCID_4151583

                                  SGS-CSTC Standards Technical Services Co., Ltd.
                                  Shenzhen Branch

                                                                     Report No.: SZEM181200007601
                                                                     Page:        1 of 19




                                       TEST REPORT
Application No.:               SZEM1812000076CR
Applicant:                     SHENZHEN DNS INDUSTRIES CO., LTD
Address of Applicant:          23/F Building A, Shenzhen International Innovation Centre, No. 1006
                               Shennan Road, Futian, Shenzhen, China
Manufacturer:                  SHENZHEN DNS INDUSTRIES CO., LTD
Address of Manufacturer:       23/F Building A, Shenzhen International Innovation Centre, No. 1006
                               Shennan Road, Futian, Shenzhen, China
Factory:                       HUIZHOU D&S CABLE CO., LTD.
Address of Factory:            Longjin Dongjiang Industry Zone Shuikou, Huicheng, Huizhou, Guangdong,
                               China
Equipment Under Test (EUT):
EUT Name:                      Wireless Charger
Model No.:                     AC47CM1, AC47CM2 ♣
♣                              Please refer to section 2 of this report which indicates which model was
                               actually tested and which were electrically identical.
Trade mark:                    DNS, NOVOO, omars, mbest
FCC ID:                        ZBCAC47CM1
Standard(s) :                  47 CFR Part 18
Date of Receipt:               2018-12-19
Date of Test:                  2018-12-21 to 2018-12-29
Date of Issue:                 2019-01-03
Test Result:                   Pass*
* In the configuration tested, the EUT complied with the standards specified above.




             Keny Xu
       EMC Laboratory Manager


                           SGS-CSTC Standards Technical Services Co., Ltd.
                           Shenzhen Branch
                                                            Report No.: SZEM181200007601
                                                            Page:       2 of 19



                                        Revision Record
     Version       Chapter              Date                   Modifier       Remark

     01                              2019-01-03                               Original




Authorized for issue by:




                             Peter Geng /Project Engineer




                             Eric Fu /Reviewer


                               SGS-CSTC Standards Technical Services Co., Ltd.
                               Shenzhen Branch
                                                                   Report No.: SZEM181200007601
                                                                   Page:       3 of 19



2   Test Summary
    Radio Spectrum Matter Part
              Item               Standard               Method               Requirement           Result
         Conducted
                              47 CFR Part 18           FCC MP-5               Part 18.307           Pass
         disturbance
     Radiated emission        47 CFR Part 18           FCC MP-5               Part 18.305           Pass


    Remark:
    Model No.: AC47CM1, AC47CM2
    Only the model AC47CM1 was tested fully, and the model AC47CM2 was performed the Radiated
    emission for discrepancy, since the electrical circuit design, layout, components used, internal wiring
    and functions were identical for the above models, with only difference on model No, overvoltage
    protection circuit, details see below:
                                  Overvoltage protection circuit
           Model No.
                                          used or not

           AC47CM1                             No

           AC47CM2                             Yes


                                              SGS-CSTC Standards Technical Services Co., Ltd.
                                              Shenzhen Branch
                                                                                                    Report No.: SZEM181200007601
                                                                                                    Page:       4 of 19


3         Contents
                                                                                                                                                          Page
1      COVER PAGE ............................................................................................................................................1

2      TEST SUMMARY .......................................................................................................................................3

3      CONTENTS ................................................................................................................................................4

4      GENERAL INFORMATION ........................................................................................................................5
    4.1        DETAILS OF E.U.T. ...............................................................................................................................5
    4.2        DESCRIPTION OF SUPPORT UNITS .........................................................................................................5
    4.3        MEASUREMENT UNCERTAINTY ..............................................................................................................5
    4.4        TEST LOCATION....................................................................................................................................6
    4.5        TEST FACILITY......................................................................................................................................6
    4.6        DEVIATION FROM STANDARDS ...............................................................................................................6
    4.7        ABNORMALITIES FROM STANDARD CONDITIONS .....................................................................................6
5      EQUIPMENT LIST ......................................................................................................................................7

6      RADIO SPECTRUM MATTER TEST RESULTS .......................................................................................8
    6.1     CONDUCTED DISTURBANCE ...................................................................................................................8
       6.1.1 E.U.T. Operation ............................................................................................................................8
       6.1.2 Test Setup Diagram .......................................................................................................................8
       6.1.3 Measurement Procedure and Data...............................................................................................9
    6.2     RADIATED EMISSION ...........................................................................................................................12
       6.2.1 E.U.T. Operation ..........................................................................................................................13
       6.2.2 Test Setup Diagram .....................................................................................................................13
       6.2.3 Measurement Procedure and Data.............................................................................................14
7      PHOTOGRAPHS ......................................................................................................................................19
    7.1        TEST SETUP PHOTOS. ........................................................................................................................19
    7.2        EUT CONSTRUCTIONAL DETAILS (EUT PHOTOS).................................................................................19


                             SGS-CSTC Standards Technical Services Co., Ltd.
                             Shenzhen Branch
                                                                 Report No.: SZEM181200007601
                                                                 Page:       5 of 19


4   General Information
4.1 Details of E.U.T.
    Power supply:            Input: DC 5V/2A
                             Output: DC 5V/1A (5W Max.)
    Antenna Type:            Inductive Loop Coil Antenna
    Modulation Type:         Load Modulation
    Operation Frequency:     107.37kHz to 179.49kHz
    Remark:                  This device has been tested the worst status of full load and the device has
                             been tested with load at zero charge, intermediate charge, and full charge.


4.2 Description of Support Units

    Description                    Manufacturer                 Model No.                 Serial No.
    AC/DC adapter           UGREEN (provided by client)           CD122                       20839
    iPhone 8                           Apple                      A1863              F4GVQ656JC6D
    Micro USB Cable                   PHILIPS                   SWR2101             REF. No.SEA0700


4.3 Measurement Uncertainty

      No.                           Item                              Measurement Uncertainty
       1                      Radio Frequency                                 ± 7.25 x 10-8
       2                         Duty cycle                                     ± 0.37%
       3                    Occupied Bandwidth                                    ± 3%
       4                    RF conducted power                                  ± 0.75dB
       5                      RF power density                                  ± 2.84dB
       6               Conducted Spurious emissions                             ± 0.75dB
                                                                          ± 4.5dB (below 1GHz)
       7                     RF Radiated power
                                                                          ± 4.8dB (above 1GHz)
                                                                          ± 4.5dB (Below 1GHz)
       8               Radiated Spurious emission test
                                                                         ± 4.8dB (Above 1GHz)
       9                      Temperature test                                   ± 1°C
       10                       Humidity test                                     ± 3%
       11                     Supply voltages                                    ± 1.5%
       12                           Time                                          ± 3%


                                SGS-CSTC Standards Technical Services Co., Ltd.
                                Shenzhen Branch
                                                                      Report No.: SZEM181200007601
                                                                      Page:       6 of 19


4.4 Test Location
     All tests were performed at:
     SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen Branch
     No. 1 Workshop, M-10, Middle Section, Science & Technology Park, Shenzhen, Guangdong, China.
     518057.
     Tel: +86 755 2601 2053          Fax: +86 755 2671 0594
     No tests were sub-contracted.

4.5 Test Facility
     The test facility is recognized, certified, or accredited by the following organizations:
     • CNAS (No. CNAS L2929)
     CNAS has accredited SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch EMC
     Lab to ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration
     Laboratories (CNAS-CL01 Accreditation Criteria for the Competence of Testing and Calibration
     Laboratories) for the competence in the field of testing.
     • A2LA (Certificate No. 3816.01)
     SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the
     American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01.
     • VCCI
     The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz,
     Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port
     Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have
     been registered in accordance with the Regulations for Voluntary Control Measures with Registration
     No.: G-20026, R-14188, C-12383 and T-11153 respectively.
     • FCC –Designation Number: CN1178
     SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized
     as an accredited testing laboratory.
     Designation Number: CN1178. Test Firm Registration Number: 406779.
     • Innovation, Science and Economic Development Canada
     SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized
     by ISED as an accredited testing laboratory.
     CAB identifier: CN0006.
     IC#: 4620C.
4.6 Deviation from Standards
     None
4.7 Abnormalities from Standard Conditions
     None


                               SGS-CSTC Standards Technical Services Co., Ltd.
                               Shenzhen Branch
                                                                 Report No.: SZEM181200007601
                                                                 Page:       7 of 19



5      Equipment List
Conducted disturbance
        Equipment           Manufacturer         Model No      Inventory No    Cal Date    Cal Due Date
      Shielding Room      ChangZhou ZhongYu       GB-88        SEM001-06      2017-05-10    2020-05-09
Measurement Software            AUDIX          e3 V5.4.1221d       N/A           N/A           N/A
       Coaxial Cable             SGS               N/A         SEM024-01      2018-07-12    2019-07-11
           LISN            Rohde & Schwarz       ENV216        SEM007-01      2018-09-25    2019-09-24
           LISN            ETS-LINDGREN           3816/2       SEM007-02      2018-04-02    2019-04-01
     EMI Test Receiver     Rohde & Schwarz         ESCI        SEM004-02      2018-04-02    2019-04-01


Radiated emission
        Equipment           Manufacturer         Model No      Inventory No    Cal Date    Cal Due Date
    10m Semi-Anechoic
                               SAEMC            FSAC1018       SEM001-03      2018-03-31    2021-03-30
        Chamber
                                               e3 V8.2014-6-
Measurement Software            AUDIX                              N/A           N/A           N/A
                                                    27
       Coaxial Cable             SGS               N/A         SEM029-01      2018-07-12    2019-07-11
     EMI Test Receiver
                           Rohde & Schwarz         ESR         SEM004-03      2018-04-02    2019-04-01
       (9kHz-7GHz)
   Trilog-Broadband
                             Schwarzbeck        VULB9168       SEM003-18      2016-01-26    2019-01-25
Antenna(25MHz-2GHz)
                          Sonoma Instrument
       Pre-amplifier                               310N        SEM005-04      2018-04-13    2019-04-12
                                Co
    Active Loop Antenna      ETS-Lindgren          6502        SEM003-08      2017-08-22    2020-08-21


General used equipment
        Equipment           Manufacturer         Model No      Inventory No    Cal Date    Cal Due Date
                               Shanghai
Humidity/ Temperature
                             Meteorological       ZJ1-2B       SEM002-03      2018-09-27    2019-09-26
      Indicator
                            Industry Factory
                               Shanghai
Humidity/ Temperature
                             Meteorological       ZJ1-2B       SEM002-04      2018-09-27    2019-09-26
      Indicator
                            Industry Factory
Humidity/ Temperature
                                Mingle             N/A         SEM002-08      2018-09-27    2019-09-26
      Indicator
                              Changchun
        Barometer            Meteorological       DYM3         SEM002-01      2018-04-08    2019-04-07
                            Industry Factory


                            SGS-CSTC Standards Technical Services Co., Ltd.
                            Shenzhen Branch
                                                            Report No.: SZEM181200007601
                                                            Page:       8 of 19



6    Radio Spectrum Matter Test Results
6.1 Conducted disturbance
     Test Requirement       Part 18.307
     Test Method:           FCC MP-5
     Limit:




6.1.1 E.U.T. Operation
      Operating Environment:
      Temperature:      21.9 °C       Humidity: 67.4 % RH       Atmospheric Pressure: 1020   mbar
      Test mode         a:Charge mode_Keep the EUT charging(5W)
6.1.2 Test Setup Diagram


                             SGS-CSTC Standards Technical Services Co., Ltd.
                             Shenzhen Branch
                                                                Report No.: SZEM181200007601
                                                                Page:       9 of 19



6.1.3 Measurement Procedure and Data
      Test Procedure:     1) The mains terminal disturbance voltage test was conducted in a shielded
                             room.
                            2) The EUT was connected to AC power source through a LISN 1 (Line
                               Impedance Stabilization Network) which provides a 50Ω/50µH + 5Ω linear
                               impedance. The power cables of all other units of the EUT were
                               connected to a second LISN 2, which was bonded to the ground
                               reference plane in the same way as the LISN 1 for the unit being
                               measured. A multiple socket outlet strip was used to connect multiple
                               power cables to a single LISN provided the rating of the LISN was not
                               exceeded.
                            3) The tabletop EUT was placed upon a non-metallic table 0.8m above the
                               ground reference plane. And for floor-standing arrangement, the EUT was
                               placed on the horizontal ground reference plane,
                            4) The test was performed with a vertical ground reference plane. The rear
                               of the EUT shall be 0.4 m from the vertical ground reference plane. The
                               vertical ground reference plane was bonded to the horizontal ground
                               reference plane. The LISN 1 was placed 0.8 m from the boundary of the
                               unit under test and bonded to a ground reference plane for LISNs
                               mounted on top of the ground reference plane. This distance was
                               between the closest points of the LISN 1 and the EUT. All other units of
                               the EUT and associated equipment was at least 0.8 m from the LISN 2.
                            5) In order to find the maximum emission, the relative positions of
                               equipment and all of the interface cables must be changed on
                               conducted measurement.


                          SGS-CSTC Standards Technical Services Co., Ltd.
                          Shenzhen Branch
                                                Report No.: SZEM181200007601
                                                Page:       10 of 19



Mode: a; Line:Live Line


                             SGS-CSTC Standards Technical Services Co., Ltd.
                             Shenzhen Branch
                                                   Report No.: SZEM181200007601
                                                   Page:       11 of 19

Mode: a; Line:Neutral Line


                                   SGS-CSTC Standards Technical Services Co., Ltd.
                                   Shenzhen Branch
                                                                    Report No.: SZEM181200007601
                                                                    Page:       12 of 19



6.2 Radiated emission
         Test Requirement      Part 18.305
         Test Method:          FCC MP-5
         Measurement Distance: 3m
         Limit:




1Fieldstrength may not exceed 10 µV/m at 1600 meters. Consumer equipment operating below 1000 MHz is
not permitted the increase in field strength otherwise permitted here for power over 500 watts.
2Reduced     to the greatest extent possible.
3Field  strength may not exceed 10 µV/m at 1600 meters. Consumer equipment is not permitted the increase
in field strength otherwise permitted here for over 500 watts.
4Induction cooking ranges manufactured prior to February 1, 1980, shall be subject to the field strength limits
for miscellaneous ISM equipment.


                            SGS-CSTC Standards Technical Services Co., Ltd.
                            Shenzhen Branch
                                                            Report No.: SZEM181200007601
                                                            Page:       13 of 19




6.2.1 E.U.T. Operation
      Operating Environment:
      Temperature:      25 °C         Humidity: 51 % RH         Atmospheric Pressure: 1020   mbar
      Test mode         a:Charge mode_Keep the EUT charging(5W)
6.2.2 Test Setup Diagram


                             SGS-CSTC Standards Technical Services Co., Ltd.
                             Shenzhen Branch
                                                                Report No.: SZEM181200007601
                                                                Page:       14 of 19



6.2.3 Measurement Procedure and Data
      Test Procedure:   a. The EUT was placed on the top of a rotating table 0.8 meters above the
                           ground at a 10 meter semi-anechoic chamber(30MHz-1000MHz) and 10
                           meter semi-anechoic chamber(9kHz-30MHz). The table was rotated 360
                           degrees to determine the position of the highest radiation.
                        b. The EUT was set 10 meters(30MHz-1000MHz) and 10 meter (9kHz-
                           30MHz) away from the interference-receiving antenna, which was mounted
                           on the top of a variable-height antenna tower.
                        c.   Above 30MHz: The Analyzer/Receiver scanned from 30MHz to
                             1000MHz.The antenna height is varied from one meter to four meters
                             above the ground to determine the maximum value of the field strength.
                             Both horizontal and vertical polarizations of the antenna are set to make the
                             measurement.
                        d. Below 30MHz: The Analyzer/Receiver scanned from 9kHz to 30MHz.The
                           antenna height is 2 meters above the ground to determine the maximum
                           value of the field strength.
                        e. For each suspected emission, the EUT was arranged to its worst case and
                           then the antenna was tuned to heights from 1 meter to 4 meters (for the test
                           frequency of below 30MHz, the antenna was tuned to heights 2 meter) and
                           the rotatable table was turned from 0 degrees to 360 degrees to find the
                           maximum reading.
                        f.   The test-receiver system was set to Peak Detect Function and Specified
                             Bandwidth with Maximum Hold Mode.
                        g. If the emission level of the EUT in peak mode was 10dB lower than the limit
                           specified, then testing could be stopped and the peak values of the EUT
                           would be reported. Otherwise the emissions that did not have 10dB margin
                           would be re-tested one by one using peak, quasi-peak or average method
                           as specified and then reported in a data sheet.
                        h. Repeat above procedures until all frequencies measured was complete.
                        i.   Measurement Requirement:
                        1)This product belongs to non-ISM equipment, the field strength limit is 15uV/m
                        at 300 meter distance.
                        2)Limit: 20log(15uV/m) +20log (300/3) =23.52+40=63.52dBuV/m at 3 meters
                        distance


                          SGS-CSTC Standards Technical Services Co., Ltd.
                          Shenzhen Branch
                                                Report No.: SZEM181200007601
                                                Page:       15 of 19

Test Model No.: AC47CM1
9kHz-150kHz


               SGS-CSTC Standards Technical Services Co., Ltd.
               Shenzhen Branch
                                     Report No.: SZEM181200007601
                                     Page:       16 of 19



150kHz-30MHz


                          SGS-CSTC Standards Technical Services Co., Ltd.
                          Shenzhen Branch
                                                Report No.: SZEM181200007601
                                                Page:       17 of 19

Test Model No.: AC47CM2
9kHz-150kHz


               SGS-CSTC Standards Technical Services Co., Ltd.
               Shenzhen Branch
                                     Report No.: SZEM181200007601
                                     Page:       18 of 19

150kHz-30MHz


                              SGS-CSTC Standards Technical Services Co., Ltd.
                              Shenzhen Branch
                                                                     Report No.: SZEM181200007601
                                                                     Page:       19 of 19




7   Photographs
7.1 Test Setup Photos.
    Refer to setup photos.

7.2 EUT Constructional Details (EUT Photos)
    Refer to external and internal photos.


                                             - End of the Report -



Document Created: 2019-01-29 01:43:39
Document Modified: 2019-01-29 01:43:39

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