RF Exposure Info (MPE) rev.pdf

FCC ID: JNZS00173

RF Exposure Info

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FCCID_3989351

                                                           RF Exposure Report

                       Report No.: SA180730E06

                            FCC ID: JNZS00173

                       Test Model: S00173

                 Received Date: July 30, 2018

                         Test Date: Aug. 09, 2018

                     Issued Date: Aug. 22, 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.: SA180730E06                                              Page No. 1 / 9                                             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 ............................................................................................................................................ 9




Report No.: SA180730E06                                             Page No. 2 / 9                                             Report Format Version: 6.1.1


                                          Release Control Record


Issue No.             Description                                         Date Issued
SA180730E06           Original release.                                   Aug. 22, 2018




Report No.: SA180730E06                      Page No. 3 / 9        Report Format Version: 6.1.1


1    Certificate of Conformity


            Product: Bluetooth Speaker

              Brand: ULTIMATE EARS

        Test Model: S00173

    Sample Status: ENGINEERING SAMPLE

          Applicant: LOGITECH FAR EAST LTD.

          Test Date: Aug. 09, 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:       Aug. 22, 2018
                                Claire Kuan / Specialist




     Approved by :                                              ,   Date:       Aug. 22, 2018
                                 May Chen / Manager




Report No.: SA180730E06                        Page No. 4 / 9                        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
                                                                 .
                                   rounded to the nearest mW and mm before calculation.
                                                                      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.: SA180730E06                          Page No. 5 / 9                         Report Format Version: 6.1.1


3    SAR Test Exclusion Thresholds

Smallest distance from the antenna and radiating structures or outer surface of the device




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Report No.: SA180730E06   Page No. 7 / 9   Report Format Version: 6.1.1


BT-EDR Avg. Power Table
                                                   GFSK                                    8DPSK
                       Frequency
    Channel                              Avg. Power    Avg. Power                 Avg. Power    Avg. Power
                         (MHz)
                                           (mW)          (dBm)                      (mW)          (dBm)
         0                 2402             8.61          9.35                      9.705          9.87
        39                 2441             7.87          8.96                       8.77          9.43
        78                 2480            6.998          8.45                      6.138          7.88

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

2402 ~ 2480           9.87          -5.18       0.303               15           0.032           3            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)
                                            3.125                100          -15.05
 The DH5 packet was the worse case duty cycle for a transmit dwell time on a
channel, based upon bluetooth theory the transmitter is on 0.625 * 5 per 296.25
   ms per channel. Therefore, the duty cycle correlation factor be equal to:
                       10log(3.125 / 100)= -15.05 dB




Report No.: SA180730E06                         Page No. 8 / 9                             Report Format Version: 6.1.1


BT-LE Avg. Power Table

                                                                                           Avg. Power
            Channel                   Frequency (MHz)
                                                                                  (mW)                      (dBm)
                0                            2402                                 9.078                     9.58
               19                            2440                                 6.383                     8.05
               39                            2480                                 4.989                     6.98

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

2402 ~ 2480             9.58          7.56          5.702               15            0.589             3           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)
                                              0.396                  0.63          -2.02
                         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.: SA180730E06                             Page No. 9 / 9                              Report Format Version: 6.1.1



Document Created: 2018-09-03 10:47:45
Document Modified: 2018-09-03 10:47:45

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