RF Exposure Info (MPE) rev 2.pdf

FCC ID: JNZS00171

RF Exposure Info

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FCCID_3830743

                                                           RF Exposure Report

                       Report No.: SA180327E08

                            FCC ID: JNZS00171

                       Test Model: S-00171

                 Received Date: Mar. 27, 2018

                         Test Date: Apr. 25, 2018

                     Issued Date: Apr. 26, 2018


                         Applicant: LOGITECH FAR EAST LTD.

                           Address: #2 Creation Rd. 4, Science-Based Ind. Park Hsinchu Taiwan, R.O.C.



                        Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch
                                   Hsin Chu Laboratory
                    Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300,
                                 Taiwan R.O.C.
            Test Location : E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300,
                            Taiwan R.O.C.
       FCC Registration /
                            723255 / TW2022
      Designation Number:




This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted
only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this
report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless
specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to
us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such
notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your
unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the
uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be
used by the client to claim product certification, approval, or endorsement by any government agencies.
Report No.: SA180327E08                                               Page No. 1 / 7                                              Report Format Version: 6.1.1


                                                                  Table of Contents
Release Control Record .................................................................................................................................. 3
1        Certificate of Conformity ...................................................................................................................... 4
2        Evaluation Result .................................................................................................................................. 5
3        SAR Test Exclusion Thresholds .......................................................................................................... 6
4        Conclusion ............................................................................................................................................ 7




Report No.: SA180327E08                                             Page No. 2 / 7                                             Report Format Version: 6.1.1


                                          Release Control Record


Issue No.             Description                                         Date Issued
SA180327E08           Original release.                                   Apr. 26, 2018




Report No.: SA180327E08                      Page No. 3 / 7        Report Format Version: 6.1.1


1    Certificate of Conformity


            Product: Bluetooth speaker

              Brand: ULTIMATE EARS

        Test Model: S-00171

    Sample Status: ENGINEERING SAMPLE

          Applicant: LOGITECH FAR EAST LTD.

          Test Date: Apr. 25, 2018

         Standards: FCC Part 2 (Section 2.1093)

                          KDB 447498 D01 General RF Exposure Guidance v06
                          IEEE C95.1-1992



The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd.,
Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data
evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts
of the measurements of the sample’s EMC characteristics under the conditions specified in this report.




      Prepared by :                                             ,   Date:       Apr. 26, 2018
                                  Mary Ko / Specialist




     Approved by :                                              ,   Date:       Apr. 26, 2018
                                 May Chen / Manager




Report No.: SA180327E08                        Page No. 4 / 7                        Report Format Version: 6.1.1


2       Evaluation Result


Following FCC KDB 447498 D01 “General SAR test exclusion guidance”

The corresponding SAR Exclusion Threshold condition, listed below:

1) 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
                                                       in GHz.
                                                                                          .
                                                                      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.

2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is
    determined according to the following:
    a) [Threshold at 50 mm in step 1) + (test separation distance - 50mm)·( f(MHz)/150)] mW, at 100MHz to
        1500 MHz
    b) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)·10] mW at > 1500 MHz and ≤ 6
         GHz

3) At frequencies below 100 MHz, the following may be considered for SAR test exclusion.
    a) The threshold at the corresponding test separation distance at 100 MHz in step 2) is multiplied by [1 +
        log(100/f(MHz))] for test separation distances > 50 mm and < 200 mm.
    b) The threshold determined by the equation in a) for 50 mm and 100 MHz is multiplied by ½ for test
         separation distances ≤ 50 mm.
    c) SAR measurement procedures are not established below 100 MHz. When SAR test exclusion cannot
         be applied, a KDB inquiry is required to determine SAR evaluation requirements for any test results to
         be acceptable.




Report No.: SA180327E08                          Page No. 5 / 7                         Report Format Version: 6.1.1


3     SAR Test Exclusion Thresholds
BT-EDR Avg. Power Table
                                                      GFSK                                  8DPSK
                       Frequency
      Channel                               Avg. Power    Avg. Power               Avg. Power    Avg. Power
                         (MHz)
                                              (mW)          (dBm)                    (mW)          (dBm)
         0                 2402               6.397          8.06                    4.188          6.22
        39                 2441               6.934          8.41                    5.023          7.01
        78                 2480               7.674          8.85                    5.559          7.45

For BT-EDR SAR Test Exclusion Thresholds
                                                                   Min. test    SAR test
                   Max Avg.       *Max Time Max Time                                            10-g SAR
    Frequency                                                     separation    exclusion
                    Power         Avg. Power Avg. Power                                      test exclusion Result
      (MHz)                                                        distance    calculation
                    (dBm)           (dBm)      (mW)                                 (NOTE 1)   thresholds
                                                                     (mm)      value

2402 ~ 2480           8.85           7.69         5.875               5           1.85           7.5           Pass
    NOTE:    1. Calculate SAR test exclusion thresholds from condition “1” formulas.
             2. *Time Avg. Power= Avg. Power+Duty factor

BT-EDR Duty Cycle of Test Signal
                                              Tx on           Tx total     Duty Factor
              Duty Cycle                      (ms)             (ms)           (dB)
                                              2.882               3.762        -1.16
                       Duty Factor =10 * log(Tx on / Tx total)




Report No.: SA180327E08                          Page No. 6 / 7                             Report Format Version: 6.1.1


BT-LE Avg. Power Table

                                                                                           Avg. Power
            Channel                   Frequency (MHz)
                                                                                  (mW)                     (dBm)
                0                            2402                                 4.887                    6.89
               19                            2440                                 6.039                    7.81
               39                            2480                                 6.561                    8.17

For BT-LE SAR Test Exclusion Thresholds
                                                                      Min. test     SAR test
                      Max Avg.     *Max Time Max Time                                               10-g SAR
    Frequency                                                        separation     exclusion
                       Power       Avg. Power Avg. Power                                         test exclusion Result
      (MHz)                                                           distance     calculation
                       (dBm)         (dBm)      (mW)                                    (NOTE 1)   thresholds
                                                                        (mm)       value

2402 ~ 2480             8.17          5.92          3.908                5            1.231          7.5           Pass
    NOTE:     1. Calculate SAR test exclusion thresholds from condition “1” formulas.
              2. *Time Avg. Power= Avg. Power+Duty factor

BT-LE Duty Cycle of Test Signal
                                              Tx on              Tx total     Duty Factor
               Duty Cycle                     (ms)                (ms)           (dB)
                                              0.391                  0.656         -2.25
                         Duty Factor =10 * log(Tx on / Tx total)




4     Conclusion
The device of BT-EDR and BT-LE modulation type can't transmit simultaneously.
Since Source-base time average power is below SAR test exclusion power thresholds, the SAR evaluation is
not required.

--- END ---




Report No.: SA180327E08                             Page No. 7 / 7                              Report Format Version: 6.1.1



Document Created: 2018-04-26 13:17:28
Document Modified: 2018-04-26 13:17:28

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