RF Exposure

FCC ID: 2AO3C-M1BT

RF Exposure Info

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FCCID_4475112

                                     MPE REPORT

                                        FCC ID: 2AO3C-M1BT


                                     Date of issue: July 15, 2019



       Report number:                   MTi180731E184


       Sample description:              RADIO


       Model(s):                        MODEL ONE BT


       Applicant:                       Tivoli Audio, Inc.


       Address:                         745 Atlantic Avenue Boston, MA 02111 USA


       Date of test:                    July 13, 2018 to Nov. 21, 2018




                                         Shenzhen Microtest Co., Ltd.
                                                http://www.mtitest.com




This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen
Microtest Co., Ltd.

  Tel:(86-755)88850135        Fax: (86-755) 88850136                  Web: http://www.mtitest.com           E-mail: mti@51mti.com
  Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China


                                                        - Page 2 of 4 -                        Report No.: MTi180731E184




                                          TEST RESULT CERTIFICATION
Applicant’s name:                        Tivoli Audio, Inc.
Address:                                 745 Atlantic Avenue Boston, MA 02111 USA
Manufacture's name:                      Jwoodaudio Industry Co., Ltd
Address:                                 No.4 industrial District, Liuwu village, Yuanzhou Town, Huizhou
                                         City,Guangdong province, P.R.C 516123
Product name:                            RADIO
Trademark:                               Tivoli Audio
Model and/or type reference . : MODEL ONE BT
Serial model ........................... : N/A
RF exposure procedures........ : KDB 447498 D01 v06


This device described above has been tested by Shenzhen Microtest Co., Ltd and the test results
show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is
applicable only to the tested sample identified in the report.




                    Tested by:


                                                                 Leo Su                              Nov. 21, 2018


                   Reviewed by:


                                                                 Blue Zheng                          July 15, 2019

                 Approved by:

                                                                 Smith Chen                          July 15, 2019




  Tel:(86-755)88850135        Fax: (86-755) 88850136                  Web: http://www.mtitest.com           E-mail: mti@51mti.com
  Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China


                                                       - Page 3 of 4 -                        Report No.: MTi180731E184

RF EXPOSURE EVALUATION
According to FCC 1.1310: 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 §1.1307(b)



Limits for Maximum Permissible Exposure (MPE)




MPE Calculation Method

Friis transmission formula: Pd= (Pout*G)\ (4*pi*R2)

Where

Pd= Power density in mW/cm2

Pout=output power to antenna in mW

G= Numeric gain of the antenna relative to isotropic antenna

Pi=3.1415926

R= distance between observation point and center of the radiator in cm(20cm)

Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to
the antenna, through the calculation, we will know the distance where the MPE limit is reached.




 Tel:(86-755)88850135        Fax: (86-755) 88850136                  Web: http://www.mtitest.com           E-mail: mti@51mti.com
 Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China


                                                        - Page 4 of 4 -                        Report No.: MTi180731E184




       Measurement Result

 BT:

 Operation Frequency: BT GFSK, π/4-DQPSK, 8DPSK: 2402-2480MHz

                            Power density limited: 1mW/ cm2

 Antenna Type: BT Antenna: PCB Antenna;
 BT antenna gain: 1dBi

 R=20cm

 mW=10^(dBm/10)

 antenna gain Numeric=10^(dBi/10)= 10^(1/10)=1.26



                                                                                                                         Power
                              conducted                                                               Evaluation
                                              Tune-             Max                Antenna                               density
Channel                         power                                                                   result
                                                up                                                                        Limits
  Freq.     modulation
                                              power         tune-up
 (MHz)                                                                      Gain
                                 (dBm)        (dBm)          power                  (mW/cm2 ) (mW/cm2)
                                                         (dBm) (mW) (dBi) Numeric
 2402                            0.906          1±1        2     1.585 1.00    1.26   0.0004     1
 2441           GFSK             0.995          1±1        2     1.585 1.00    1.26   0.0004     1
 2480                            1.766          1±1        2     1.585 1.00    1.26   0.0004     1
 2402                            0.805          1±1        2     1.585 1.00    1.26   0.0004     1
                π/4-
 2441                            1.698          1±1        2     1.585 1.00    1.26   0.0004     1
               DQPSK
 2480                            1.902          1±1        2     1.585 1.00    1.26   0.0004     1
 2402                            1.302          2±1        3     1.995 1.00    1.26   0.0005     1
 2441          8DPSK             2.197          2±1        3     1.995 1.00    1.26   0.0005     1
 2480                            2.696          2±1        3     1.995 1.00    1.26   0.0005     1


 Conclusion:

 For the max result: 0.0005≤ 1.0 for 1g SAR, No SAR is required.



                                                  ----END OF REPORT----




  Tel:(86-755)88850135        Fax: (86-755) 88850136                  Web: http://www.mtitest.com           E-mail: mti@51mti.com
  Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China



Document Created: 2019-10-09 09:42:51
Document Modified: 2019-10-09 09:42:51

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