RF Exposure Info

FCC ID: 2AC9N-144619

RF Exposure Info

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FCCID_4195419

                                                                              Shenzhen CTL Testing Technology Co., Ltd.
                                                                           Tel: +86-755-89486194 E-mail: ctl@ctl-lab.com



                       RF EXPOSURE REPORT
Report Reference No.:                           CTL1901176121-MPE

           Compiled by:                                        Happy Guo
( position+printed name+signature)                        (File administrators)

             Tested by:                                       Nice Nong
( position+printed name+signature)                          (Test Engineer)

           Approved by:                                         Ivan Xie
( position+printed name+signature)                             (Manager)


Product Name ............................ : wireless charging stand
Model/Type reference ................ : 144619-00
List Model(s) ............................... : 144619-01, 144619-02
PO No. ....................................... : 393465
Trade Mark .................................. : TYPO
FCC ID ....................................... : 2AC9N-144619
Applicant’s name ....................... : Cotton On USA Inc
Address of applicant ................. : 16511, Trojan Way, La Miranda, California 90638, United States

Test Firm ..................................... : Shenzhen CTL Testing Technology Co., Ltd.

                                                Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road,
Address of Test Firm ................. :
                                                Nanshan District, Shenzhen, China 518055
Test specification ....................... :
Standard ...................................... : FCC Rules Part 15.207,15.209, 15.215(c)
                                                  ANSI C63.10-2013
TRF Originator ............................. : Shenzhen CTL Testing Technology Co., Ltd.
Master TRF .................................. : Dated 2011-01
Date of Receipt ........................... : Jan. 18, 2019
Date of Test Date ........................ : Jan. 19, 2019–Jan. 28, 2019
Data of Issue............................... : Jan. 29, 2019
Result.......................................... : Pass
Shenzhen CTL Testing Technology Co., Ltd. All rights reserved.
This publication may be reproduced in whole or in part for non-commercial purposes as long as the
Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the
material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume
liability for damages resulting from the reader's interpretation of the reproduced material due to its
placement and context.


V1.0                                         Page 2 of 10                     Report No.: CTL1901176121-MPE



                                     TEST REPORT
                                                                                     Jan. 29, 2019
       Test Report No. :            CTL1901176121-WF
                                                                                     Date of issue


       Equipment under Test          :       wireless charging stand


       Model /Type                   :       144619-00


       Listed Models                 :       144619-01, 144619-02


       Applicant                     :       Cotton On USA Inc


       Address                       :       16511, Trojan Way, La Miranda, California 90638,
                                             United States


       Manufacturer                  :       Cotton On USA Inc


       Address                       :       16511, Trojan Way, La Miranda, California 90638,
                                             United States



                       Test result                                               Pass *
  *In the configuration tested, the EUT complied with the standards specified page 5.
   The test report merely corresponds to the test sample.
   It is not permitted to copy extracts of these test result without the written permission of the test laboratory.


V1.0                                  Page 3 of 10            Report No.: CTL1901176121-MPE


                                  ** Modified History **
  Revisions             Description          Issued Data       Report No.        Remark
 Version 1.0   Initial Test Report Release    2019-01-29   CTL1901176121-MPE     Tracy Qi


V1.0                                                                     Page 4 of 10                                         Report No.: CTL1901176121-MPE



                                                                        Table of Contents                                                                                        Page
1.     SUMMARY ............................................................................................................................................................... 5
     1.1.     TEST FACILITY .............................................................................................................................................................. 5
     1.2.     STATEMENT OF THE MEASUREMENT UNCERTAINTY............................................................................................................... 5
2.     GENERAL INFORMATION .......................................................................................................................................... 6
     2.1.     ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6
     2.2.     GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6
     2.3.     TEST EQUIPMENT ......................................................................................................................................................... 6
3.     TEST CONDITIONS AND RESULTS .............................................................................................................................. 7
     3.1.     APPLICABLE STANDARD.................................................................................................................................................. 7
     3.2.     LIMIT ......................................................................................................................................................................... 7
     3.3.     TEST SETUP ................................................................................................................................................................. 7
     3.4.     MEASUREMENT PROCEDURE .......................................................................................................................................... 8
     3.5.     TEST RESULT OF E AND H FIELD STRENGTH ........................................................................................................................ 8
     3.6.     EQUIPMENT APPROVAL CONSIDERATIONS ......................................................................................................................... 9
     3.7.     CONCLUSION ............................................................................................................................................................... 9
4.     TEST SETUP PHOTOS OF THE EUT ........................................................................................................................... 10


V1.0                                      Page 5 of 10                  Report No.: CTL1901176121-MPE


1. SUMMARY
1.1. Test Facility
1.1.1 Address of the test laboratory
Shenzhen CTL Testing Technology Co., Ltd.
Floor 1-A, Baisha Technology Park, No. 3011, Shahexi Road, Nanshan, Shenzhen 518055 China

The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.4:2014 and CISPR
16-1-4:2010 SVSWR requirement for radiated emission above 1GHz.

1.1.2   Laboratory accreditation
The test facility is recognized, certified, or accredited by the following organizations:
IC Registration No.: 9618B
The 3m alternate test site of Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been
registered by Certification and Engineer Bureau of Industry Canada for the performance of with
Registration No.: 9618B on November 13, 2013.
FCC-Registration No.: 399832
Shenzhen CTL Testing Technology Co., Ltd. EMC Laboratory has been registered and fully described
in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the
FCC is maintained in our files. Registration 399832, December 08, 2017.

1.2. Statement of the measurement uncertainty
The data and results referenced in this document are true and accurate. The reader is cautioned that
there may be errors within the calibration limits of the equipment and facilities. The measurement
uncertainty was calculated for all measurements listed in this test report acc. to CISPR 16 - 4
“Specification for radio disturbance and immunity measuring apparatus and methods – Part 4:
Uncertainty in EMC Measurements“ and is documented in the Shenzhen CTL Testing Technology Co.,
Ltd. quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of
devices similar to that tested may result in additional deviation. The manufacturer has the sole
responsibility of continued compliance of the device.

Hereafter the best measurement capability for CTL laboratory is reported:
                                                                    Measurement
                            Test                                                          Notes
                                                                      Uncertainty
                Transmitter power conducted                            ±0.57 dB            (1)
                 Transmitter power Radiated                            ±2.20 dB            (1)
        Conducted spurious emission 9KHz-40 GHz                        ±2.20 dB            (1)
                    Occupied Bandwidth                                 ±0.01ppm            (1)
               Radiated Emission 30~1000MHz                             ±4.10dB            (1)
               Radiated Emission Above 1GHz                             ±4.32dB            (1)
             Conducted Disturbance0.15~30MHz                            ±3.20dB            (1)
  (1) This uncertainty represents an expanded uncertainty expressed at approximately the 95%
      confidence level using a coverage factor of k=2.


V1.0                                       Page 6 of 10                Report No.: CTL1901176121-MPE


2. GENERAL INFORMATION
2.1. Environmental conditions
During the measurement the environmental conditions were within the listed ranges:
               Normal Temperature:                                         25°C
                 Relative Humidity:                                       55 %
                   Air Pressure:                                         101 kPa

2.2. General Description of EUT
Product Name:              wireless charging stand
Model/Type reference:      144619-00
Input Voltage:             DC 5V 2A
Rated power:               5W
Operation frequency:       110KHz~200KHz
Antenna type:              Coil antennas
Antenna gain:             0dBi
Note: For more details, please refer to the user’s manual of the EUT.

2.3. Test Equipment
                                                                         Calibrated     Calibrated
  Equipment        Manufacturer         Model             Serial no.
                                                                           date           until
E-Field Probe       HOLADAY             HI3637        00052130           2018.5.20      2019.5.19
H-Field Probe       HOLADAY             HI3637        00052130           2018.5.20      2019.5.19
The calibration interval was one year


V1.0                                    Page 7 of 10                Report No.: CTL1901176121-MPE


3. TEST CONDITIONS AND RESULTS
3.1. Applicable Standard
According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in
a manner that ensures that the public is not exposed to radio frequency energy level in excess of the
Commission’s guidelines.
According to §1.1310 and §2.1091 RF exposure is calculated.
According KDB 680106 D01 RF Exposure Wireless Charging App v03


3.2. Limit
Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure

   Frequency           Electric Field       Magnetic Field       Power Density       Averaging Time
  Range(MHz)           Strength(V/m)        Strength(A/m)          (mW/cm²)             (minute)
                             Limits for Occupational/Controlled Exposure
    0.3 – 3.0               614                  1.63               (100) *                 6
    3.0 – 30               1842/f               4.89/f              (900/f)*                6
    30 – 300                61.4                0.163                  1.0                  6
   300 – 1500                 /                    /                 f/300                  6
 1500 – 100,000               /                    /                    5                   6

Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure

   Frequency           Electric Field       Magnetic Field       Power Density       Averaging Time
  Range(MHz)           Strength(V/m)        Strength(A/m)          (mW/cm²)             (minute)
                             Limits for Occupational/Controlled Exposure
    0.3 – 3.0               614                  1.63               (100) *                 30
    3.0 – 30               824/f                2.19/f              (180/f)*                30
    30 – 300                27.5                0.073                  0.2                  30
   300 – 1500                 /                    /                 f/1500                 30
 1500 – 100,000               /                    /                   1.0                  30

F=frequency in MHz
*=Plane-wave equivalent power density

3.3. Test Setup




Note: A, B, C, D, E, F for six surfaces of the product.


V1.0                                      Page 8 of 10                    Report No.: CTL1901176121-MPE


3.4. Measurement Procedure
a) The RF exposure test was performed on 360 degree turn table in anechoic chamber.
b) The measurement probe was placed at test distance (10cm) which is between the edge of the
     charger and the geometric centre of probe.
c) The turn table was rotated 360d degree to search of highest strength.
d) The highest emission level was recorded and compared with limit as soon as measurement of
     each points (A, B, C, D, E) were completed.
e)     The EUT were measured according to the dictates of KDB 680106 D01 RF Exposure Wireless
     Charging App v03.

3.5. Test Result of E and H field Strength
E-Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT
                                                                                           FCC
                                      Measured E-Field Strength Values (V/m)                          FCC
                                                                                         E-Field
 Charging     Frequency                                                                             E-Field
                                                                                        Strength
  Battery       Range                                                                               Strength
                              Test        Test         Test        Test      Test          50%
   Level        (MHz)                                                                                Limits
                            Position A Position B Position C Position D Position E       Limits
                                                                                                     (V/m)
                                                                                          (V/m)
     1%         0.145        6.59        6.57        6.64         6.25           6.15      307.0          614.0

     50%        0.145        6.56        6.41        6.36         6.41           6.85      307.0          614.0

     99%        0.145        5.68        6.15        5.56         5.42           5.36      307.0          614.0

H-Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT
                                                                                          FCC
                                      Measured E-Field Strength Values (A/m)                          FCC
                                                                                        H-Field
 Charging     Frequency                                                                             H-Field
                                                                                        Strength
  Battery       Range                                                                              Strength
                              Test        Test         Test        Test      Test         50%
   Level        (MHz)                                                                               Limits
                            Position A Position B Position C Position D Position E       Limits
                                                                                                     (A/m)
                                                                                         (A/m)
     1%         0.145       0.352       0.347        0.115       0.256           0.232     0.815          1.63

     50%        0.145       0.322       0.259        0.157       0.244           0.229     0.815          1.63

     99%        0.145       0.254       0.228        0.136       0.211           0.214     0.815          1.63

H-Field Strength at 20cm from the top surface of the EUT
 Charging     Frequency Measured E-Field Strength Values
                                                               FCC H-Field Strength      FCC H-Field Strength
  Battery       Range                     (A/m)
                                                                 50% Limits (A/m)           Limits (A/m)
   Level        (MHz)                Test Position E
     1%         0.145                   0.212                            0.815                     1.63

     50%        0.145                   0.198                            0.815                     1.63

     99%        0.145                   0.187                            0.815                     1.63


V1.0                                    Page 9 of 10               Report No.: CTL1901176121-MPE



3.6. Equipment Approval Considerations
The EUT does comply with KDB 680106 D01 as follow table.
Requirements of KDB 680106 D01                 Yes / No    Description
                                                           The device operate in the frequency range
Power transfer frequency is less than 1 MHz      Yes
                                                           110KHz~200KHz
Output power from each primary coil is less                The maximum output power for each
                                                 Yes       primary coil is 5W.
than 15 watts
The transfer system includes only single
primary and secondary coils. This includes                 The transfer system includes two primary
charging systems that may have multiple                    coils and are able to detect and allow
                                                 Yes
primary coils and clients that are able to                 coupling only between individual pairs of
detect and allow coupling only between                     coils.
individual pairs of coils.
Client device is placed directly in contact                Client device is placed directly in contact
                                                 Yes
with the transmitter.                                      with the transmitter.
Mobile exposure conditions only (portable
exposure conditions are not covered by this      Yes       Mobile exposure conditions only
exclusion).
The aggregate H-field strengths at 15 cm                   The EUT H-field strengths at 15 cm
surrounding the device and 20 cm above                     surrounding the device and 20 cm above
the top surface from all simultaneous            Yes       the top surface from all simultaneous
transmitting coils are demonstrated to be                  transmitting coils are demonstrated to be
less than 50% of the MPE limit.                            less than 50% of the MPE limit.


3.7. Conclusion
The detected emissions with a distance of 15cm surrounding the device and 20 cm above the top
surface of the device are below the FCC E-Field Strength & H-Field Strength limits; and comply with
the requirements of FCC KDB 680106 D01.


V1.0                           Page 10 of 10               Report No.: CTL1901176121-MPE


4. Test Setup Photos of the EUT




            ********************** End of Report **********************



Document Created: 2019-03-05 10:22:20
Document Modified: 2019-03-05 10:22:20

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