RF Exposure Info

FCC ID: 2ARZU-AB204YT

RF Exposure Info

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FCCID_4508233

                                  Shenzhen Huaxia Testing Technology Co., Ltd
                                  1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District,
                                  Shenzhen, China
                                  Telephone:     +86-755-26648640
                                  Fax:           +86-755-26648637                  Report Template Version: V04
                                  Website:       www.cqa-cert.com                  Report Template Revision Date: 2018-07-06



                RF Exposure Evaluation Report

Report No. :                      CQASZ20191001055E-03
Applicant:                        Dongguan OSM Technologies Co., Ltd
Address of Applicant:             1 to 6 / F, Building A, Longdi Industrial Park, No. 6 Tiansha Road, Keyuan City,
                                  Tangxia Town, Dong guan City
Equipment Under Test (EUT):
EUT Name:                         Phantom handle multi-function bracket
Model No.:                        Oth-AB204, Oth-AB204YT, Oth-AB204DY, Oth-AB203, Oth-AB203YT,
                                  Oth-AB203DY, SS101, SNAP-X10, M801, JH402, ATSS025
Test Model No.:                   Oth-AB204YT
Brand Name:                       SEAJIC
FCC ID:                           2ARZU-AB204YT
Standards:                        47 CFR Part 1.1307
                                  47 CFR Part 1.1310
                                  KDB447498D01 General RF Exposure Guidance v06

Date of Receipt:                  2019-10-25
Date of Test:                     2019-10-25 to 2019-10-31
Date of Issue:                    2019-10-31
Test Result :                     PASS*
*In the configuration tested, the EUT complied with the standards specified above




Tested By:
                                                (Tom chen)


Reviewed By:
                                               (Sheek Luo)


Approved By:
                                                 ( Jack Ai)




The test report is effective only with both signature and specialized stamp, The result(s) shown in this report refer only to

the sample(s) tested. Without written approval of CQA, this report can’t be reproduced except in full.


                                    Shenzhen Huaxia Testing Technology Co., Ltd
                                                     Report No.: CQASZ20191001055E-03


1   Version
                            Revision History Of Report

          Report No.          Version        Description           Issue Date
     CQASZ20191001055E-03      Rev.01        Initial report       2019-10-31




                              Page:2 of 8


                                                                                  Shenzhen Huaxia Testing Technology Co., Ltd
                                                                                                                     Report No.: CQASZ20191001055E-03



2         Contents
                                                                                                                                                                          Page
1       VERSION...................................................................................................................................................................... 2

2       CONTENTS.................................................................................................................................................................. 3

3       GENERAL INFORMATION........................................................................................................................................4
    3.1     CLIENT INFORMATION................................................................................................................................................ 4
    3.2     GENERAL DESCRIPTION OF EUT................................................................................................................................ 4
    3.3     GENERAL DESCRIPTION OF BLE................................................................................................................................ 4
    3.4     GENERAL DESCRIPTION OF 2.4G................................................................................................................................4
4       SAR EVALUATION.....................................................................................................................................................6
    4.1 RF EXPOSURE COMPLIANCE REQUIREMENT.............................................................................................................. 6
       4.1.1 Standard Requirement..................................................................................................................................6
       4.1.2 Limits................................................................................................................................................................6
       4.1.3 EUT RF Exposure..........................................................................................................................................7




                                                                      Page:3 of 8


                                               Shenzhen Huaxia Testing Technology Co., Ltd
                                                                     Report No.: CQASZ20191001055E-03



3    General Information
3.1 Client Information
     Applicant:                 Dongguan OSM Technologies Co., Ltd
     Address of Applicant:      1 to 6 / F, Building A, Longdi Industrial Park, No. 6 Tiansha Road, Keyuan
                                City, Tangxia Town, Dong guan City
     Manufacturer:              Dongguan OSM Technologies Co., Ltd
     Address of Manufacturer:   1 to 6 / F, Building A, Longdi Industrial Park, No. 6 Tiansha Road, Keyuan
                                City, Tangxia Town, Dong guan City

3.2 General Description of EUT
     Product Name:              Phantom handle multi-function bracket
     Model No.:                 Oth-AB204, Oth-AB204YT, Oth-AB204DY, Oth-AB203, Oth-AB203YT,
                                Oth-AB203DY, SS101, SNAP-X10, M801, JH402, ATSS025
     Test Model No.:            Oth-AB204YT
     Trade Mark:                SEAJIC
    Hardware Version:           V2.0
    Software Version:           V2.0
    Product Type:                    Mobile        Portable       Fix Location
    Power Supply:               lithium battery:DC3.7V, Charge by DC5.0V

3.3 General Description of BLE
    Operation Frequency:        2402MHz~2480MHz
    Bluetooth Version:          V4.2
    Modulation Type:            GFSK
    Transfer Rate:              1Mbps
    Number of Channel:          40
    Test Software of EUT:       BK32xx RF Test – V1.8.2_en (manufacturer declare )
    Antenna Type:               PCB antenna
    Antenna Gain:               0dBi

3.4 General Description of 2.4G
    Operation Frequency:        2416 MHz ~ 2467MHz
    Modulation Type:            GFSK
    Number of Channels:         52 (declared by the client)
    Test Software of EUT:       RF test (manufacturer declare )
     Antenna Type:              Integral antenna
    Antenna Gain:               0dBi

Model No.: Oth-AB204, Oth-AB204YT, Oth-AB204DY, Oth-AB203, Oth-AB203YT, Oth-AB203DY, SS101,
SNAP-X10, M801, JH402, ATSS025



                                         Page:4 of 8


                                                 Shenzhen Huaxia Testing Technology Co., Ltd
                                                                      Report No.: CQASZ20191001055E-03


Only the model Oth-AB204YT was tested, There are identical on circuitry design, PCB layout, electrical
components used, internal wiring and functions with the model/item No. Oth-AB204YT , only different on the
shape and technology of plastic shell, There are same from the electronic part, function; and schematic
diagram.




                                          Page:5 of 8


                                                Shenzhen Huaxia Testing Technology Co., Ltd
                                                                     Report No.: CQASZ20191001055E-03



4    SAR Evaluation
4.1 RF Exposure Compliance Requirement
4.1.1 Standard Requirement
     According to KDB447498D01 General RF Exposure Guidance v06
     4.3.1. Standalone SAR test exclusion considerations
           Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head
     or body and 10-g extremity SAR evaluation for general population exposure conditions, by
     measurement or numerical simulation, is not required when the corresponding SAR Exclusion
     Threshold condition, listed below, is satisfied.
4.1.2 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, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·
     [√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 before calculation17
        The result is rounded to one decimal place for comparison
     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 is applied to determine SAR test exclusion




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                                                 Shenzhen Huaxia Testing Technology Co., Ltd
                                                                       Report No.: CQASZ20191001055E-03




4.1.3 EUT RF Exposure
1) For BLE
Measurement Data
                                               GFSK mode
                                                       Tune up tolerance           Maximum tune-up Power
       Test channel              Peak Output Power
                                      (dBm)                      (dBm)                (dBm)         (mW)

    Lowest(2402MHz)                    1.58                      1.0±1                   2.0        1.585
     Middle(2440MHz)                   0.91                       0±1                    1.0        1.259
    Highest(2480MHz)                   1.31                      0.5±1                   1.5        1.413

  Worst case: GFSK
                   Maximum Peak                        Maximum tune-
                                        Tune up
                       Conducted                            up Power        Calculated         Exclusion
     Channel                            tolerance
                      Output Power                                            value            threshold
                                         (dBm)         (dBm)     (mW)
                         (dBm)
      Lowest
                          1.58           1.0±1          2.0      1.585        0.491
    (2402MHz)
      Middle
                                                                                                  3.0
    (2440MHz)             0.91            0±1           1.0      1.259        0.393

     Highest
    (2480MHz)             1.31           0.5±1          1.5      1.413        0.445

  Conclusion: the calculated value ≤3.0, SAR is exempted.

Remark: The Max Conducted Peak Output Power data refer to report Report No.: CQASZ20191001055E-01




                                         Page:7 of 8


                                                       Shenzhen Huaxia Testing Technology Co., Ltd
                                                                            Report No.: CQASZ20191001055E-03


2) For 2.4G
        eirp = pt x gt = (E x d)2/30
        where:
        pt = transmitter output power in watts,
        gt = numeric gain of the transmitting antenna (unitless),
        E = electric field strength in V/m, ---10((dBμV/m)/20)/106 ,
        d = measurement distance in meters (m)---3m,
        So pt = (E x d)2/30 / gt


        The worst case (refer to report CQASZ20191001055E-02) is below:


                                            Antenna polarization: Horizontal
               Frequency (MHz)                            Level (dBuV/m)                    Polarization
                      2467                                         100.21                      Peak
                      2467                                         96.92                      Average


                                             Antenna polarization: Vertical
               Frequency (MHz)                           Level (dBuV/m)                     Polarization
                      2467                                         99.65                       Peak
                      2467                                         95.97                      Average


        For 2467MHz wireless:
        Field strength = 100.21dBμV/m @3m
        Ant. gain 0dBi; so Ant numeric gain=1.0
        So pt={[10(100.21/20)/106x3]2/30 /1.0}x1000mW =3.149mW
        So (3.149mW/5mm)x √2.467GHz = 0.989,


        0.989<3.0 for 1-g SAR


        So the SAR report is not required.




                                               Page:8 of 8



Document Created: 2019-11-05 11:26:26
Document Modified: 2019-11-05 11:26:26

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