RF Exposure Info

FCC ID: YQ6-A20TXX01

RF Exposure Info

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FCCID_3565877

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

No. 1 Workshop, M-10, Middle section, Science & Technology Park,
Shenzhen, Guangdong, China 518057
Telephone:            +86 (0) 755 2601 2053                                                                                     Report No.: SZEM170600652103
Fax:                  +86 (0) 755 2671 0594
                                                                                                                                Page:        1 of 7
Email:                ee.shenzhen@sgs.com

1          Cover page


                   RF Exposure Evaluation Report
Application No.:                                           SZEM1706006521CR
Applicant:                                                 Logitech Far East Ltd
Address of Applicant:                                      No. 2, Creation Road IV Science-Based Industrial Park Hsin-Chu Taiwan
Manufacturer:                                              Logitech Far East Ltd
Address of Manufacturer:                                   No. 2, Creation Road IV Science-Based Industrial Park Hsin-Chu Taiwan
EUT Name:                                                  A20 Wireless Headset
Model No.:                                                 A20TXX01
Trade mark:                                                ASTRO



FCC ID:                                                    YQ6-A20TXX01
Standards:                                                 47 CFR Part 1.1307 (2016)
                                                           47 CFR Part 1.1310 (2016)
Date of Receipt:                                           2017-06-28
Date of Test:                                              2017-07-09 to 2017-07-12
Date of Issue:                                             2017-07-21
Test Result :                                               PASS*
*        In the configuration tested, the EUT complied with the standards specified above.




Authorized Signature:




     Jack Zhang
EMC Laboratory 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.
This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights
and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification
of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the
sample(s) tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       2 of 7

2 Version

                                                                                        Revision Record
                 Version                    Chapter                                          Date                                        Modifier                               Remark

                01                                                                    2017-07-21                                                                                Original




         Authorized for issue by:




                                                                      Benson Wang /Project Engineer




                                                                      Eric Fu /Reviewer




This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       3 of 7

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

2         VERSION .....................................................................................................................................................................2

3         CONTENTS .................................................................................................................................................................3

4         GENERAL DESCRIPTION OF EUT ........................................................................................................................4
     4.1       TEST LOCATION .........................................................................................................................................................5
     4.2       TEST FACILITY ...........................................................................................................................................................5
     4.3       DEVIATION FROM STANDARDS...................................................................................................................................5
     4.4       ABNORMALITIES FROM STANDARD CONDITIONS .......................................................................................................5
     4.5       OTHER INFORMATION REQUESTED BY THE CUSTOMER .............................................................................................5
5         RF EXPOSURE EVALUATION ................................................................................................................................6
     5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ..............................................................................................................6
        5.1.1 Limits ..............................................................................................................................................................6
        5.1.2 Test Procedure ..............................................................................................................................................6
     4.1.3 EUT RF EXPOSURE EVALUATION..............................................................................................................................7




This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       4 of 7

4          General Description of EUT
           Product Name:                                           A20 Wireless Headset
           Model No.:                                              A20TXX01
           For 5G wifi:
           Operation Frequency:                                    5.745-5.825GHz.
           Channel Numbers:                                        5G WiFi, 802.11a(VHT20): 5 Channels
           Modulation Type                                         For 802.11a: OFDM(8PSK/QPSK/16QAM/64QAM)
           Antenna Type:                                           Integral
           Antenna Gain:                                           3.08dBi




This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       5 of 7



4.1 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.

4.2 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 10m Semi-anechoic chamber and Shielded Room of SGS-CSTC Standards Technical Services
            Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures with
            Registration No.: G-823, R-4188, T-1153 and C-2383 respectively.
            • FCC – Registration No.: 556682
            SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen 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 No.: 556682.
            • Industry Canada (IC)
            Two 3m Semi-anechoic chambers and the 10m Semi-anechoic chamber of SGS-CSTC Standards
            Technical Services Co., Ltd. Shenzhen Branch EMC Lab have been registered by Certification and
            Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 4620C-1,
            4620C-2, 4620C-3.

4.3 Deviation from Standards
            None.

4.4 Abnormalities from Standard Conditions
           None.

4.5 Other Information Requested by the Customer
            None.



This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       6 of 7

5              RF Exposure Evaluation

5.1           RF Exposure Compliance Requirement
5.1.1 Limits
                According to FCC Part1.1310: The criteria listed in the following table shall be used to evaluate the
               environment impact of human exposure to radio frequency (RF) radiation as specified in part1.1307(b)




F= Frequency in MHz
Friis Formula
Friis transmission formula: Pd = (Pout*G)/(4* Pi * R 2)
Where
Pd = power density in mW/cm2
Pout = output power to antenna in mW
G = gain of antenna in linear scale
Pi = 3.1416

R = distance between observation point and center of the radiator in cm
Pd id the limit of MPE, 1 mW/cm2 . If we know the maximum gain of the antenna and the total power input to
the antenna, through the calculation, we will know the distance r where the MPE limit is reached.

5.1.2 Test Procedure
               Software provided by client enabled the EUT to transmit and receive data at lowest, middle and
               highest channel individually.




This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.


                                                           SGS-CSTC Standards Technical Services Co., Ltd.

                                                           Shenzhen Branch
                                                                                                                                  Report No.: SZEM170600652103
                                                                                                                                  Page:       7 of 7

4.1.3 EUT RF Exposure Evaluation
For 5GHz
Antenna Gain:3.08 dBi
Antenna Gain: The maximum Gain measured in fully anechoic chamber is 2.03 in linear scale.


The normal conducted output power is 7.9dBm (tolerance: +/- 2dB).
  Max Conducted                         Output Power                      Power Density                        Limit            Result
      Peak Output                         to Antenna                        at R = 20 cm
    Power (dBm)                                 (mW)                           (mW/cm2)
              9.90                               9.77                              0.004                         1.0             PASS


Note: The distancer (3rd column) calculated from the Fries transmission formula is far greater than 20 cm
      separation requirement.




This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for
electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of
liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention
only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and
obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the
content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s)
tested and such sample(s) are retained for 30 days only.



Document Created: 2017-09-15 07:01:45
Document Modified: 2017-09-15 07:01:45

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