H2E_FCC Part15C Bluetooth_Report_2_20190925

FCC ID: A4R-H2E

Test Report

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FCCID_4459014

        serovcas. FCC RADIO TEST REPORT                                                       Report No. : FR960638A



       Appendix C. Radiated Spurious Emission
                                                                             Temperature :           24~26°C
Test Engineer :               Jesse Wang, Stan Hsieh and Ken Wu
                                                                              Relative Humidity :    (52~60%



                                                     2.A4GHz 2400~2483.5MHz

                                                        BT (Band Edge @ 3m)

  BT         Note|   Frequency        Level   Over         Limit   Read     Antenna|   Path   |Preamp|    Ant    Table |Peak] Pol.
                                              Limit        Line    Level     Factor    Loss   Factor     Pos      Pos   |Avg.
                      (MHz )       _|(dBpuV/im)| (dB) |(dBuV/m)|(dBuV)| (dB/im)|       (dB)    (dB )     |(cm)|( deg ) |(P/A)|(H/V)
                        2390         46.94    —27.06        74     42.15      32       7.74    34.95      377     280     P     H

                        2390         22.15    —31.85        54                                                            A     H

               *        2402          105.1      —           —     100.31     32       7.74    34.95      377     280     P     H

               *        2402         80.31       —           —                                                            A     H
                                                                                                                                H

  BT
                                                                                                                                H

 CHOO
                      2389.38        47.98    —26.02        74     43.18      32       7.74    34.94      127     336     P     V
2402MHz
                      2389.38        23.19    |—30.81       54                                                            A     V
               *        2402         106.56      —           —     101.77     32       7.74    34.95      127     336     P     V

               *        2402         81.77       —           —                                                            A     V

                                                                                                                                V

                                                                                                                                V

                      2388.68        46.03    —27.97        74     41.23      32       7.74    34.94      325     268     P     H

                      2388.68        21.24    —32.76        54                                                            A     H

               *        2441          106.7      —           —     101.68     32.2     7.79    34.97      325     268     P     H

               *        2441         81.91       —           —                                                            A     H

                      2487 47        46.77    —27.23        74     41.7       32.2     7.84    34.97      325     268     P     H
  BT
                      2487 47        21.98    32.02         54                                                            A     H
 CH 39
                       2376.5        45.56    ~28.44        74     40.9      31.93     7.67    34.94      130     338     P     V
2441MHz
                       2376.5        20.77    —33.23        54                                                            A     V

               *        2441          106.1      —           —     101.08     32.2     7.79    34.97      130     338     P     V

               *        2441         81.31       —           —                                                            A     V

                      2499.02        46.27    —27.73        74     41.21      32.2     7.84    34.98      130     338     P     V

                      2499.02        21.48    —32.52        54                                                            A     V



       TEL : 886—3—327—3456                                                            Page Number         : C1 of C6
       FAX : 886—3—328—4978


                    FCC RADIO TEST REPORT                                                     Report No. : FR960638A




               *          2480         104.85       -          -        99.78   32.2   7.84   34.97   352    284   P   H

               *          2480         80.06        -          -                                                   A   H

                        2483.52        55.49      -18.51      74        50.42   32.2   7.84   34.97   352    284   P   H

                        2483.52         30.7      -23.3       54                                                   A   H

                                                                                                                       H
  BT
                                                                                                                       H
 CH 78
               *          2480         105.35       -          -       100.28   32.2   7.84   34.97   205    332   P   V
2480MHz
               *          2480         80.56        -          -                                                   A   V

                        2483.64        54.45      -19.55      74        49.38   32.2   7.84   34.97   205    332   P   V

                        2483.64        29.66      -24.34      54                                                   A   V

                                                                                                                       V

                                                                                                                       V

          1.       No other spurious found.
Remark
          2.       All results are PASS against Peak and Average limit line.




    TEL : 886-3-327-3456                                                               Page Number    : C2 of C6
    FAX : 886-3-328-4978


                FCC RADIO TEST REPORT                                                          Report No. : FR960638A


                                                  2.4GHz 2400~2483.5MHz
                                                       BT (Harmonic @ 3m)
  BT      Note     Frequency       Level      Over       Limit      Read    Antenna   Path     Preamp    Ant   Table Peak Pol.
                                            Limit     Line      Level   Factor        Loss     Factor    Pos     Pos Avg.
                     ( MHz )     ( dBμV/m ) ( dB ) ( dBμV/m ) ( dBμV ) ( dB/m )       ( dB )   ( dB )   ( cm ) ( deg ) (P/A) (H/V)
                      4804         43.21      -30.79      74        56.91     34      11.36    59.06     100      0     P     H

                      4804         18.42      -35.58      54                                                            A     H

                                                                                                                              H
  BT
                                                                                                                              H
 CH 00
                      4804         44.06      -29.94      74        57.76     34      11.36    59.06     100      0     P     V
2402MHz
                      4804         19.27      -34.73      54                                                            A     V

                                                                                                                              V

                                                                                                                              V

                      4882         44.06      -29.94      74        57.43    34.13    11.42    58.92     100      0     P     H

                      4882         19.27      -34.73      54                                                            A     H

                      7323         44.34      -29.66      74        53.05    35.63    13.97    58.31     100      0     P     H
  BT
                      7323         19.55      -34.45      54                                                            A     H
 CH 39
                      4882         42.89      -31.11      74        56.26    34.13    11.42    58.92     100      0     P     V
2441MHz
                      4882          18.1      -35.9       54                                                            A     V

                      7323         44.18      -29.82      74        52.89    35.63    13.97    58.31     100      0     P     V

                      7323         19.39      -34.61      54                                                            A     V

                      4960         43.51      -30.49      74        56.64    34.13    11.48    58.74     100      0     P     H

                      4960         18.72      -35.28      54                                                            A     H

                      7440         44.88      -29.12      74        53.67    35.5     14.09    58.38     100      0     P     H
  BT
                      7440         20.09      -33.91      54                                                            A     H
 CH 78
                      4960         43.59      -30.41      74        56.72    34.13    11.48    58.74     100      0     P     V
2480MHz
                      4960          18.8      -35.2       54                                                            A     V

                      7440         44.64      -29.36      74        53.43    35.5     14.09    58.38     100      0     P     V

                      7440         19.85      -34.15      54                                                            A     V

          1.   No other spurious found.
Remark
          2.   All results are PASS against Peak and Average limit line.




    TEL : 886-3-327-3456                                                              Page Number        : C3 of C6
    FAX : 886-3-328-4978


                 FCC RADIO TEST REPORT                                                          Report No. : FR960638A



                                                         Emission below 1GHz
                                                           2.4GHz BT (LF)

 BT         Note    Frequency         Level      Over       Limit   Read    Antenna    Path     Preamp    Ant   Table Peak Pol.
                                              Limit     Line     Level       Factor    Loss     Factor    Pos     Pos Avg.
                      ( MHz )      ( dBμV/m ) ( dB ) ( dBμV/m ) (dBμV)      ( dB/m )   ( dB )   ( dB )   ( cm ) ( deg ) (P/A) (H/V)
                       30.27          23.43     -16.57       40     27.62    24.6      1.19     29.98      -       -     P     H

                       49.44          21.48     -18.52       40     35.62    14.66     1.19     29.99      -       -     P     H

                       170.4          27.01     -16.49      43.5    39.32    15.51     2.07     29.89      -       -     P     H

                       376.3          34.28     -11.72       46     40.32    20.88     2.86     29.78      -       -     P     H

                       878.2          32.3       -13.7       46     27.77    28.91     4.63     29.01      -       -     P     H

                       956.6          34.76     -11.24       46     27.85    30.69     4.74     28.52     100      0     P     H

                                                                                                                               H

                                                                                                                               H

                                                                                                                               H

                                                                                                                               H

                                                                                                                               H
2.4GHz
                                                                                                                               H
 BT
                         30           32.46      -7.54       40     36.65    24.6      1.19     29.98     100      0     P     V
  LF
                       35.94          27.2       -12.8       40     34.48    21.51     1.19     29.98      -       -     P     V

                       45.12          27.67     -12.33       40     40.17    16.3      1.19     29.99      -       -     P     V

                       382.6          33.68     -12.32       46     39.34    21.05     3.07     29.78      -       -     P     V

                       878.9          32.26     -13.74       46     27.72    28.91     4.63       29       -       -     P     V

                       953.1          34.33     -11.67       46     27.59    30.54     4.74     28.54      -       -     P     V

                                                                                                                               V

                                                                                                                               V

                                                                                                                               V

                                                                                                                               V

                                                                                                                               V

                                                                                                                               V

           1.   No other spurious found.
Remark
           2.   All results are PASS against limit line.




       TEL : 886-3-327-3456                                                            Page Number        : C4 of C6
       FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                               Report No. : FR960638A



                                               Note symbol


          Fundamental Frequency which can be ignored. However, the level of any unwanted emissions
   *
          shall not exceed the level of the fundamental frequency.
   !      Test result is over limit line.
 P/A      Peak or Average
 H/V      Horizontal or Vertical




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FAX : 886-3-328-4978


              FCC RADIO TEST REPORT                                                      Report No. : FR960638A



            A calculation example for radiated spurious emission is shown as below:


  BT      Note   Frequency     Level    Over     Limit     Read    Antenna      Path     Preamp    Ant   Table Peak Pol.
                                        Limit     Line      Level   Factor      Loss     Factor    Pos     Pos Avg.
                   ( MHz )   ( dBμV/m ) ( dB ) ( dBμV/m ) ( dBμV ) ( dB/m )     ( dB )   ( dB )   ( cm ) ( deg ) (P/A) (H/V)
  BT
                    2390       55.45    -18.55     74      54.51    32.22       4.58     35.86     103    308     P     H
 CH 00

2402MHz             2390       43.54    -10.46     54       42.6    32.22       4.58     35.86     103    308     A     H



    1. Path Loss(dB) = Cable loss(dB) + Filter loss(dB) + Attenuator loss(dB)
    2. Level(dBμV/m) =
    Antenna Factor(dB/m) + Path Loss(dB) + Read Level(dBμV) - Preamp Factor(dB)
    3. Over Limit(dB) = Level(dBμV/m) – Limit Line(dBμV/m)


    For Peak Limit @ 2390MHz:
    1. Level(dBμV/m)
    = Antenna Factor(dB/m) + Path Loss(dB) + Read Level(dBμV) - Preamp Factor(dB)
    = 32.22(dB/m) + 4.58(dB) + 54.51(dBμV) – 35.86 (dB)
    = 55.45 (dBμV/m)
    2. Over Limit(dB)
    = Level(dBμV/m) – Limit Line(dBμV/m)
    = 55.45(dBμV/m) – 74(dBμV/m)
    = -18.55(dB)


    For Average Limit @ 2390MHz:
    1. Level(dBμV/m)
    = Antenna Factor(dB/m) + Path Loss(dB) + Read Level(dBμV) - Preamp Factor(dB)
    = 32.22(dB/m) + 4.58(dB) + 42.6(dBμV) – 35.86 (dB)
    = 43.54 (dBμV/m)
    2. Over Limit(dB)
    = Level(dBμV/m) – Limit Line(dBμV/m)
    = 43.54(dBμV/m) – 54(dBμV/m)
    = -10.46(dB)


    Both peak and average measured complies with the limit line, so test result is “PASS”.



    TEL : 886-3-327-3456                                                        Page Number        : C6 of C6
    FAX : 886-3-328-4978


              FCC RADIO TEST REPORT                                               Report No. : FR960638A


    Appendix D. Radiated Spurious Emission Plots
                                                                  Temperature :         24~26°C
Test Engineer :            Jesse Wang, Stan Hsieh and Ken Wu
                                                                  Relative Humidity : 52~60%



                                                    Note symbol



      -L      Low channel location
      -R      High channel location




    TEL : 886-3-327-3456                                                  Page Number      : D1 of D11
    FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                     Report No. : FR960638A

                              2.4GHz 2400~2483.5MHz
                               BT (Band Edge @ 3m)
               BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                       BT CH00 2402MHz

                         Horizontal                       Fundamental




              Peak




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          FCC RADIO TEST REPORT                                    Report No. : FR960638A



              BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                      BT CH00 2402MHz

                         Vertical                         Fundamental




             Peak




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FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                    Report No. : FR960638A



              BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                      BT CH39 2441MHz

                        Horizontal                        Fundamental




             Peak




             Peak                                         Left blank




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FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                    Report No. : FR960638A



              BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                      BT CH39 2441MHz

                         Vertical                         Fundamental




             Peak




             Peak                                         Left blank




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FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                    Report No. : FR960638A



              BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                      BT CH78 2480MHz

                        Horizontal                        Fundamental




             Peak




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FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                    Report No. : FR960638A



              BT            2.4GHz 2400~2483.5MHz Band Edge @ 3m

                                      BT CH78 2480MHz

                         Vertical                         Fundamental




             Peak




TEL : 886-3-327-3456                                        Page Number    : D7 of D11
FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                         Report No. : FR960638A

                             2.4GHz 2400~2483.5MHz
                                BT (Harmonic @ 3m)
              BT             2.4GHz 2400~2483.5MHz Harmonic @ 3m

                                      BT CH00 2402MHz

                        Horizontal                           Vertical




             Peak

             Avg.




TEL : 886-3-327-3456                                         Page Number        : D8 of D11
FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                         Report No. : FR960638A



              BT             2.4GHz 2400~2483.5MHz Harmonic @ 3m

                                      BT CH39 2441MHz

                        Horizontal                           Vertical




             Peak

             Avg.




TEL : 886-3-327-3456                                         Page Number        : D9 of D11
FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                         Report No. : FR960638A



              BT             2.4GHz 2400~2483.5MHz Harmonic @ 3m

                                      BT CH78 2480MHz

                        Horizontal                           Vertical




             Peak

             Avg.




TEL : 886-3-327-3456                                         Page Number        : D10 of D11
FAX : 886-3-328-4978


          FCC RADIO TEST REPORT                                          Report No. : FR960638A

                               Emission below 1GHz
                                     2.4GHz BT (LF)
              BT                      2.4GHz 2400~2483.5MHz

                                             BT LF

                        Horizontal                            Vertical




             QP /

             Peak




TEL : 886-3-327-3456                                          Page Number        : D11 of D11
FAX : 886-3-328-4978


                FCC RADIO TEST REPORT                                                  Report No. : FR960638A



Appendix E. Duty Cycle Plots
                                  DH5 on time (One Pulse) Plot on Channel 39




                                   on time (Count Pulses) Plot on Channel 39




                       Note:
                       1. Worst case Duty cycle = on time/100 milliseconds = 2 * 2.88 / 100 = 5.76 %
                       2. Worst case Duty cycle correction factor = 20*log(Duty cycle) = -24.79 dB
                       3. DH5 has the highest duty cycle worst case and is reported.




TEL : 886-3-327-3456                                                          Page Number      : E-1 of 2
FAX : 886-3-328-4978


                FCC RADIO TEST REPORT                                             Report No. : FR960638A



                       Duty Cycle Correction Factor Consideration for AFH mode:


Bluetooth normal hopping rate is 1600Hz and reduced to 800Hz in AFH mode; due to the reduced number of
hopping frequencies, with the same packet configuration the dwell time in each channel frequency within
100msec period is longer in AFH mode than normal mode.


In AFH mode, the minimum hopping frequencies are 20, to get the longest dwell time DH5 packet is observed;
the period to have DH5 packet completing one hopping sequence is


                                      2.88 ms x 20 channels = 57.6 ms


There cannot be 2 complete hopping sequences within 100ms period, considering the random hopping
behavior, maximum 2 hops can be possibly observed within the period. [100ms / 57.6ms ] = 2 hops


Thus, the maximum possible ON time:


                                            2.88 ms x 2 = 5.76 ms


Worst case Duty Cycle Correction factor, which is derived from the maximum possible ON time,


                                   20 x log(5.76 ms/100ms) = -24.79 dB


                                                                        ─────THE END─────




TEL : 886-3-327-3456                                                      Page Number       : E-2 of 2
FAX : 886-3-328-4978



Document Created: 2019-09-30 07:45:29
Document Modified: 2019-09-30 07:45:29

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