RF Exposure Info

FCC ID: 2AR9QLW02-MW02

RF Exposure Info

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                                            SGS-CSTC Standards Technical Services Co., Ltd.
                                            Shanghai Branch
                                                                                             Report No.: C190102R01-RPB2
                                                                                             Page:             1 of 8


  1       Cover Page
                                   RF Exposure REPORT
  Application No.:                         C190102R01
  FCC ID:                                  2AR9QLW02-MW02
  IC:                                      24923-LW2MW2
  Applicant:                               Noerden(Shanghai)Information Technology Co.,Ltd

  Address of Applicant:                    Room 3311, No.1468 West Nanjing Road, Jing’an District, Shanghai,
                                           P.R.C.
  Manufacturer:                            Noerden(Shanghai)Information Technology Co.,Ltd

  Address of Manufacturer:                 Room 3311, No.1468 West Nanjing Road, Jing’an District, Shanghai,
                                           P.R.C.
  Factory:                                 Noerden(Shanghai)Information Technology Co.,Ltd

  Address of Factory:                      Room 3311, No.1468 West Nanjing Road, Jing’an District, Shanghai,
                                           P.R.C.
  Equipment Under Test (EUT):
  EUT Name:                                NOERDEN Smart Watch
  Model No.(EUT):                          LIFE2
  Series Model:                            LIFE2+ , MATE2, MATE2+
  Standards:                               FCC Rules 47 CFR §2.1093
                                           KDB 447498 D01 General RF Exposure Guidance v06
                                           RSS-102 Issue 5 (March 2015)
  Date of Receipt:                         2019-01-02
  Date of Test:                            2019-01-04 and 2019-02-25
  Date of Issue:                           2019-03-04
  Test Result:                             Pass*

  *In the configuration tested, the EUT detailed in this report complied with the standards specified above.




                   Eric Lin
               EMC Lab Manager
The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report.
If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new
system complies with all relevant standards. Any mention of SGS International Electrical Approvals or testing done by SGS
International Electrical Approvals in connection with, distribution or use of the product described in this report must be approved by
SGS International Electrical Approvals in writing.


                  SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                  Branch
                                                       Report No.: C190102R01-RPB2
                                                       Page:       2 of 8




                                          Revision Record
   Version           Description                     Date                   Remark

      00                   Original               2019-03-04                  /




Authorized for issue by:




                                      Ken Yao / Project Engineer




                                      Eric Lin /Reviewer


                                     SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                                     Branch
                                                                                               Report No.: C190102R01-RPB2
                                                                                               Page:                  3 of 8




2         Contents
                                                                                                                                                                  Page
1     COVER PAGE................................................................................................................................................. 1
2     CONTENTS ..................................................................................................................................................... 3
3     GENERAL INFORMATION ......................................................................................................................... 4
    3.1    GENERAL DESCRIPTION OF E.U.T.................................................................................................................. 4
    3.2    DETAILS OF E.U.T. ........................................................................................................................................ 4
    3.3    TEST LOCATION ............................................................................................................................................. 5
    3.4    TEST FACILITY............................................................................................................................................... 5
4     TEST STANDARDS AND LIMITS .............................................................................................................. 6
    4.1    FCC RADIOFREQUENCY RADIATION EXPOSURE LIMITS.................................................................................. 6
    4.2    IC RADIOFREQUENCY RADIATION EXPOSURE LIMITS ..................................................................................... 7
5     MEASUREMENT AND CALCULATION ................................................................................................... 8
    5.1    MAXIMUM TRANSMIT POWER ........................................................................................................................ 8
    5.2    RF EXPOSURE CALCULATION ........................................................................................................................ 8


                       SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                       Branch
                                                  Report No.: C190102R01-RPB2
                                                  Page:     4 of 8




3    General Information

3.1 General Description of E.U.T.
    Power supply:            3.0 VDC
                             button cell
    Test voltage:            3.0 VDC
    Cable:                   N/A

3.2 Details of E.U.T.
     Antenna Gain            0.98dBi
     Antenna Type            FPC Antenna
     Channel Spacing         2MHz
     Modulation Type         GFSK
     Number of Channels      40
     Operation Frequency     2402MHz to 2480MHz


                      SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                      Branch
                                                            Report No.: C190102R01-RPB2
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3.3 Test Location
    All measurement facilities used to collect the measurement data are located at
    No.10 Weiye Rd, Innovation park, Eco&Tec, Development Zone, Kunshan City, Jiangsu, China.
    No tests were sub-contracted.


3.4 Test Facility
     The test facility is recognized, certified, or accredited by the following organizations:
     • CNAS (No. CNAS L4354)
     CNAS has accredited Compliance Certification Services (Kunshan) Inc. 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. 2541.01)
     Compliance Certification Services (Kunshan) Inc. is accredited by the American Association for
     Laboratory Accreditation (A2LA). Certificate No. 2541.01.
     • FCC –Designation Number: CN1172
     Compliance Certification Services Inc. has been recognized as an accredited testing laboratory.
     Designation Number: CN1172. Test Firm Registration Number: 995260.
     • Industry Canada (IC) – IC Assigned Code: 2324E
      The 10m and 3m Semi-anechoic chamber of Compliance Certification Services (Kunshan) Inc. has
      been registered by Certification and Engineering Bureau of Industry Canada for radio equipment
      testing with Registration No.: 2324E-1 for 10m chamber, 2324E-2 for 3m chamber.
     • VCCI (Member No.: 1938)
    The 3m and 10m Semi-anechoic chamber and Shielded Room of Compliance Certification Services
    (Kunshan) Inc. has been registered in accordance with the Regulations for Voluntary Control
    Measures with Registration No.: R-1600, C-1707, T-1499, G-216 respectively.


                        SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                        Branch
                                                              Report No.: C190102R01-RPB2
                                                              Page:       6 of 8




4     Test Standards and Limits

4.1 FCC Radiofrequency radiation exposure limits
    The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances
    ≤ 50 mm are determined by:
    [(max power of channel)/(min test separation distance)]*[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-
    g extremity SAR, where
    • f(GHz) is the RF channel transmit frequency in GHz
    • Power and distance are rounded to the nearest mW and mm
    • The result is rounded to one decimal place for comparison
    • 3.0 and 7.5 are referred to as the numeric thresholds
    The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm, and
    for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation
    distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test
    exclusion.
    For 2.4G band device, the limit of worse case is

    Pmax≤7.5*Dmin)/ f =7.5*5/   2.480   =23.810mW


                           SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                           Branch
                                                             Report No.: C190102R01-RPB2
                                                             Page:       7 of 8




4.2 IC Radiofrequency radiation exposure limits
According to RSS-102 section 2.5.1, SAR evaluation is required if the separation distance between the
user and/or bystander and the antenna and/or radiating element of the device is less than or equal to 20
cm, except when the device operates at or below the applicable output power level (adjusted for tune-
up tolerance) for the specified separation distance
 MHz        5        10       15      20       25       30       35       40       45       50       mm
 ≤300      71        101      132    162      193      223       254      284      315      345
  450      52        70       88     106      123      141       159      177      195      213
  835      17        30       42      55       67       80       92       105      117      130
 1900       7        10       18      34       60       99       153      225      316      431      mW
 2450       4         7       15      30       52       83       123      173      235      309
 3500       2         6       16      32       55       86       124      170      225      290
 5800       1         6       15      27       41       56       71       85       97       106

     Output power level shall be the higher of the maximum conducted or equivalent isotropically
radiated power (e.i.r.p.) source-based, time-averaged output power. For controlled use devices where
the 8 W/kg for 1 gram of tissue applies, the exemption limits for routine evaluation are multiplied by a
factor of 5. For limb-worn devices where the 10 gram value applies, the exemption limits for routine
evaluation in Table 1 are multiplied by a factor of 2.5. If the operating frequency of the device is
between two frequencies located in Table 1, linear interpolation shall be applied for the applicable
separation distance. For test separation distance less than 5 mm, the exemption limits for a separation
distance of 5 mm can be applied to determine if a routine evaluation is required.
    The practical use condition for this device is as a limb-worn accessories. So the applicable limit is
10-g extremity SAR
    For 2.4G band device, the limit is Pmax≤2.5*4=10mW


                          SGS-CSTC Standards Technical Services Co., Ltd. Shanghai
                          Branch
                                                              Report No.: C190102R01-RPB2
                                                              Page:          8 of 8




5      Measurement and Calculation
5.1 Maximum transmit power
 The Power Data is based on the RF Test Report C190102R01-RPB1.
 Test Data:
PEAK POWER

    Test Mode   Test channel    Freq. [MHz]    Power[dBm]       Power[mW]

       BLE           00               2402          9.94              9.86
       BLE           19               2440          9.64              9.20

    BLE              39               2480          8.64              7.31
AVG POWER
                                                                                      e.i.r.p.   e.i.r.p.
 Test mode      Test channel   Freq. [MHz]     Power[dBm]       Power[mW]
                                                                                      [dBm]      [mW]
      BLE            00            2402            2.23               1.67             3.21      2.09
      BLE            19            2440            1.80               1.51             2.78      1.90
      BLE            39            2480            0.66               1.16             1.64      1.46




5.2 RF Exposure Calculation
 The Max Conducted Output Power is 9.86mW. The best case gain of the antenna is 0.98dBi. 0.98dBi
 logarithmic terms convert to numeric result is nearly 1.25

 For FCC

 Max Output Power = 1.67mW<23.81mW

 For IC

 Max e.i.r.p. = 2.09mW<10.00mW

 So the SAR report is not required.


                                        --End of the Report--



Document Created: 2019-05-16 22:12:27
Document Modified: 2019-05-16 22:12:27

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