I19Z61557-IOT02_FCC_Report_Part15C_EDR_Rev0_2

FCC ID: ZNFX540EMW

Test Report

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FCCID_4462257

                                                                                                       No. I19Z61557-IOT02
                                                                                                             Page57 of 87


Test graphs as below:



                                                    RE - Power-2.31GHz-2.45GHz


                           110

                           105

                           100

                           95

                           90

                           85

                           80
         Level in dBµV/m




                           75

                           70                                       2.383374000 GHz
                           65                                        60.367 dBµV/m

                           60

                           55                                           2.389996000 GHz
                                                                         46.837 dBµV/m
                           50

                           45

                           40
                            2310   2320      2340     2360              2380             2400            2420      2440   2450

                                                               Frequency in MHz



                                     Fig.58. Radiated emission (Power): GFSK, low channel


                                                    RE - Power-2.45GHz-2.5GHz


                           110

                           105

                           100

                           95

                           90

                           85

                           80
         Level in dBµV/m




                           75

                           70
                                                                                                2.483790000 GHz
                           65
                                                                                                 61.059 dBµV/m
                           60

                           55
                                                                           2.483500000 GHz
                           50
                                                                            53.262 dBµV/m
                           45

                           40
                            2450            2460             2470                 2480                    2490            2500

                                                               Frequency in MHz



                                    Fig.59. Radiated emission (Power) GFSK, high channel




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                                                                                                     No. I19Z61557-IOT02
                                                                                                           Page58 of 87



                                                  RE - Power-2.31GHz-2.45GHz


                  100



                  90



                  80



                  70
                                            2.356774000 GHz
                                             60.418 dBµV/m
Level in dBµV/m




                  60
                                                                    2.389996000 GHz
                                                                     46.891 dBµV/m
                  50



                  40



                  30



                  20
                   2310    2320      2340           2360            2380                2400          2420           2440   2450

                                                              Frequency in MHz



                          Fig.60. Radiated emission (Power): π/4 DQPSK, low channel


                                                  RE - Power-2.45GHz-2.5GHz


                  110

                  105

                  100

                  95

                  90

                  85

                  80
Level in dBµV/m




                  75

                  70                                                                               2.498720000 GHz
                                                                                                    60.551 dBµV/m
                  65

                  60

                  55

                  50
                                                                        2.483505000 GHz
                  45                                                     51.339 dBµV/m
                  40
                   2450             2460                   2470                  2480                   2490                2500

                                                              Frequency in MHz



                          Fig.61. Radiated emission (Power): π/4 DQPSK, high channel




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                                                                                             No. I19Z61557-IOT02
                                                                                                   Page59 of 87



                                           RE - Power-2.31GHz-2.45GHz


                  100



                  90



                  80



                  70                         2.369878000 GHz
                                              60.595 dBµV/m
Level in dBµV/m




                  60
                                                            2.389996000 GHz
                                                             46.814 dBµV/m
                  50



                  40



                  30



                  20
                   2310   2320     2340      2360           2380                2400          2420        2440   2450

                                                      Frequency in MHz



                           Fig.62. Radiated emission (Power): 8DPSK, low channel


                                           RE - Power-2.45GHz-2.5GHz


                  110

                  105

                  100

                  95

                  90

                  85

                  80
                                                                                  2.483515000 GHz
                                                                                   62.817 dBµV/m
Level in dBµV/m




                  75

                  70

                  65

                  60

                  55

                  50
                                                               2.483500000 GHz
                  45                                            54.000 dBµV/m

                  40
                   2450           2460              2470                 2480                  2490              2500

                                                      Frequency in MHz



                          Fig.63. Radiated emission (Power): 8DPSK, high channel




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                                                                      No. I19Z61557-IOT02
                                                                            Page60 of 87


A.6. Time of Occupancy (Dwell Time)
Method of Measurement: See ANSI C63.10-clause 7.8.4

The EUT must have its hopping function enabled. Use the following spectrum analyzer settings:

   Span = zero span, centered on a hopping channel

   RBW = 1 MHz

   VBW ≥ RBW

   Sweep = as necessary to capture the entire dwell time per hopping channel

   Detector function = peak

   Trace = max hold

Measure a pulse time in time domain at middle frequency and then count the hopping number in
31.6s(which equals with 0.4 multiply 79) of middle frequency ,then multiply the pulse time and
hopping number and record them.

Measurement Limit:
            Standard                                     Limit (ms)
FCC 47 CFR Part 15.247(a) (1)(iii)                         < 400
Measurement Result:
For GFSK
    Channel             Packet                Dwell Time (ms)                 Conclusion
                                     Fig.64
                         DH1                              120.65                    P
                                     Fig.65
                                     Fig.66
       39                DH3                              151.87                    P
                                     Fig.67
                                     Fig.68
                         DH5                              201.69                    P
                                     Fig.69
For π/4 DQPSK
    Channel             Packet                Dwell Time (ms)                 Conclusion
                                     Fig.70
                         DH1                              122.15                    P
                                     Fig.71
                                     Fig.72
       39                DH3                              165.25                    P
                                     Fig.73
                                     Fig.74
                         DH5                              207.66                    P
                                     Fig.75
For 8DPSK
    Channel             Packet                Dwell Time (ms)                 Conclusion
                                     Fig.76
                         DH1                              123.24                    P
       39                            Fig.77
                         DH3         Fig.78               189.68                    P
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                                  Fig.79
                                  Fig.80
                        DH5                          181.84                  P
                                  Fig.81
Conclusion: PASS
Test graphs as below:




             Fig.64. Time of occupancy (Dwell Time): Channel 39, Packet DH1




          Fig.65. Number of Transmissions Measurement: Channel 39,Packet DH1




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                                                     No. I19Z61557-IOT02
                                                           Page62 of 87




   Fig.66. Time of occupancy (Dwell Time): Channel 39, Packet DH3




Fig.67. Number of Transmissions Measurement: Channel 39,Packet DH3




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                                                     No. I19Z61557-IOT02
                                                           Page63 of 87




   Fig.68. Time of occupancy (Dwell Time): Channel 39, Packet DH5




Fig.69. Number of Transmissions Measurement: Channel 39,Packet DH5




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                                                      No. I19Z61557-IOT02
                                                            Page64 of 87




   Fig.70. Time of occupancy (Dwell Time): Channel 39, Packet 2-DH1




Fig.71. Number of Transmissions Measurement: Channel 39,Packet 2-DH1




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                                                      No. I19Z61557-IOT02
                                                            Page65 of 87




   Fig.72. Time of occupancy (Dwell Time): Channel 39, Packet 2-DH3




Fig.73. Number of Transmissions Measurement: Channel 39,Packet 2-DH3




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                                                      No. I19Z61557-IOT02
                                                            Page66 of 87




   Fig.74. Time of occupancy (Dwell Time): Channel 39, Packet 2-DH5




Fig.75. Number of Transmissions Measurement: Channel 39,Packet 2-DH5




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                                                      No. I19Z61557-IOT02
                                                            Page67 of 87




   Fig.76. Time of occupancy (Dwell Time): Channel 39, Packet 3-DH1




Fig.77. Number of Transmissions Measurement: Channel 39,Packet 3-DH1




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                                                      No. I19Z61557-IOT02
                                                            Page68 of 87




   Fig.78. Time of occupancy (Dwell Time): Channel 39, Packet 3-DH3




Fig.79. Number of Transmissions Measurement: Channel 39,Packet 3-DH3




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                                                      No. I19Z61557-IOT02
                                                            Page69 of 87




   Fig.80. Time of occupancy (Dwell Time): Channel 39, Packet 3-DH5




Fig.81. Number of Transmissions Measurement: Channel 39,Packet 3-DH5




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                                                                        No. I19Z61557-IOT02
                                                                              Page70 of 87


A.7. 20dB Bandwidth
Method of Measurement: See ANSI C63.10-clause 6.9.2

Measurement Procedure - Unwanted Emissions

1. Set RBW = 30kHz.

2. Set VBW = 100 kHz.

3. Set span to 3MHz

4. Detector = peak.

5. Trace Mode = max hold.

6. Sweep = auto couple.

7. Allow the trace to stabilize (this may take some time, depending on the extent of the span).

Measurement Limit:
               Standard                                        Limit
  FCC 47 CFR Part 15.247(a)(1)                                NA﹡

Use NdB Down function of the SA to measure the 20dB Bandwidth
﹡Comment: This test case is not required according to the latest FCC 47 CFR Part 15.247. But
the test results are necessary for “carrier frequency separation” test case, in Annex A.8.
Measurement Results:
For GFSK
      Channel                         20dB Bandwidth (kHz)                      Conclusion
          0                  Fig.82                      942.75                      NA
          39                 Fig.83                      942.00                      NA
          78                 Fig.84                      945.00                      NA
For π/4 DQPSK
      Channel                         20dB Bandwidth (kHz)                      Conclusion
          0                  Fig.85                     1209.75                      NA
          39                 Fig.86                     1254.75                      NA
          78                 Fig.87                     1248.75                      NA
For 8DPSK
      Channel                         20dB Bandwidth (kHz)                      Conclusion
          0                  Fig.88                     1205.25                      NA
          39                 Fig.89                     1257.00                      NA
          78                 Fig.90                     1257.75                      NA
Conclusion: NA
Test graphs as below:




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                                      No. I19Z61557-IOT02
                                            Page71 of 87




Fig.82. 20dB Bandwidth: GFSK, Channel 0




Fig.83. 20dB Bandwidth: GFSK, Channel 39




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                                              Page72 of 87




 Fig.84. 20dB Bandwidth: GFSK, Channel 78




Fig.85. 20dB Bandwidth: π/4 DQPSK, Channel 0




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Fig.86. 20dB Bandwidth: π/4 DQPSK, Channel 39




Fig.87. 20dB Bandwidth: π/4 DQPSK, Channel 78




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                                            Page74 of 87




Fig.88. 20dB Bandwidth: 8DPSK, Channel 0




Fig.89. 20dB Bandwidth: 8DPSK, Channel 39




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Fig.90. 20dB Bandwidth: 8DPSK, Channel 78




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                                                                      No. I19Z61557-IOT02
                                                                            Page76 of 87


A.8. Carrier Frequency Separation
Method of Measurement: See ANSI C63.10-clause 7.8.2

The EUT must have its hopping function enabled. Use the following spectrum analyzer settings:

    Span = 3MHz

    RBW=300kHz

    VBW=300kHz

    Sweep = auto

    Detector function = peak

    Trace = max hold

    Allow the trace to stabilize

Search the peak marks of the middle frequency and adjacent channel, then record the separation
between them.
﹡Comment: This limit should be over 25 kHz or (2/3) * 20dB bandwidth, whichever is greater.

Measurement Limit:
               Standard                                     Limit(kHz)
    FCC 47 CFR Part 15.247(a)(1)              over 25 kHz or (2/3) * 20dB bandwidth


Measurement Result:
For GFSK
       Channel                  Carrier frequency separation (kHz)            Conclusion
          39                  Fig.91                    1034.25                     P
For π/4 DQPSK
       Channel                  Carrier frequency separation (kHz)            Conclusion
          39                  Fig.92                    1005.00                     P
For 8DPSK
       Channel                  Carrier frequency separation (kHz)            Conclusion
          39                  Fig.93                    1170.00                     P
Conclusion: PASS
Test graphs as below:




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                                                      No. I19Z61557-IOT02
                                                            Page77 of 87




  Fig.91. Carrier frequency separation measurement: GFSK, Channel 39




Fig.92. Carrier frequency separation measurement: π/4 DQPSK, Channel 39




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                                                    No. I19Z61557-IOT02
                                                          Page78 of 87




Fig.93. Carrier frequency separation measurement: 8DPSK, Channel 39




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                                                                       No. I19Z61557-IOT02
                                                                             Page79 of 87


A.9. Number of Hopping Channels
Method of Measurement: See ANSI C63.10-clause 7.8.3

The EUT must have its hopping function enabled. Use the following spectrum analyzer settings:

   Span = the frequency band of operation

   RBW = 500kHz

   VBW = 500kHz

   Sweep = auto

   Detector function = peak

   Trace = max hold

   Allow the trace to stabilize

It might prove necessary to break the span up into subranges to show clearly all of the hopping
frequencies. Compliance of an EUT with the appropriate regulatory limit shall be determined for
the number of hopping channels. A plot of the data shall be included in the test report.

Measurement Limit:
             Standard                                          Limit
FCC 47 CFR Part 15.247(a) (1)(iii)            At least 15 non-overlapping channels
Measurement Result:
For GFSK
      Channel                      Number of hopping channels                 Conclusion
        0~39                 Fig.94
                                                          79                        P
       40~78                 Fig.95
Forπ/4 DQPSK
      Channel                      Number of hopping channels                 Conclusion
        0~39                 Fig.96
                                                          79                        P
       40~78                 Fig.97
For 8DPSK
      Channel                      Number of hopping channels                 Conclusion
        0~39                 Fig.98
                                                          79                        P
       40~78                 Fig.99
Conclusion: PASS
Test graphs as below:




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                                                No. I19Z61557-IOT02
                                                      Page80 of 87




Fig.94. Number of hopping frequencies: GFSK, Channel 0 - 39




Fig.95. Number of hopping frequencies: GFSK, Channel 40 - 78




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                                                   No. I19Z61557-IOT02
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Fig.96. Number of hopping frequencies: π/4 DQPSK, Channel 0 - 39




Fig.97. Number of hopping frequencies: π/4 DQPSK, Channel 40 - 78




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                                                 No. I19Z61557-IOT02
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Fig.98. Number of hopping frequencies: 8DPSK, Channel 0 - 39




Fig.99. Number of hopping frequencies: 8DPSK, Channel 40 - 78




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                                                                       No. I19Z61557-IOT02
                                                                             Page83 of 87


A.10. AC Powerline Conducted Emission

Method of Measurement: See ANSI C63.10-clause 6.2

1. the one EUT cable configuration and arrangement and mode of operation that produced the
emission with the highest amplitude relative to the limit is selected for the final measurement, while
applying the appropriate modulating signal to the EUT.
2. If the EUT is relocated from an exploratory test site to a final test site, the highest emissions
shall be remaximized at the final test location before final ac power-line conducted emission
measurements are performed.
3. The final test on all current-carrying conductors of all of the power cords to the equipment that
comprises the EUT (but not the cords associated with other non-EUT equipment in the system) is
then performed for the full frequency range for which the EUT is being tested for compliance
without further variation of the EUT arrangement, cable positions, or EUT mode of operation.
4. If the EUT is comprised of equipment units that have their own separate ac power
connections, e.g., floor-standing equipment with independent power cords for each shelf that are
able to connect directly to the ac power network, each current-carrying conductor of one unit is
measured while the other units are connected to a second (or more) LISN(s). All units shall be
separately measured. If a power strip is provided by the manufacturer, to supply all of the units
making up the EUT, only the conductors in the power cord of the power strip shall be measured.
5. If the EUT uses a detachable antenna, these measurements shall be made with a suitable
dummy load connected to the antenna output terminals; otherwise, the tests shall be made with
the antenna connected and, if adjustable, fully extended. When measuring the ac conducted
emissions from a device that operates between 150 kHz and 30 MHz a non-detachable antenna
may be replaced with a dummy load for the measurements within the fundamental emission band
of the transmitter, but only for those measurements.36 Record the six highest EUT emissions
relative to the limit of each of the current-carrying conductors of the power cords of the equipment
that comprises the EUT over the frequency range specified by the procuring or regulatory agency.
Diagram or photograph the test setup that was used. See Clause 8 for full reporting requirements.

Test Condition
               Voltage(V)                                      Frequency(Hz)
                    120                                              60

Measurement Result and limit:
Bluetooth (Quasi-peak Limit)
          Frequency range                  Quasi-peak Limit (dBV)
                                                                                   Conclusion
               (MHz)
              0.15 to 0.5                           66 to 56
               0.5 to 5                                56                               P
                5 to 30                                60
NOTE: The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to
0.5 MHz.

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                                                                    No. I19Z61557-IOT02
                                                                          Page84 of 87

Bluetooth (Average Limit)
          Frequency range                  Average Limit (dBV)
                                                                                Conclusion
               (MHz)
             0.15 to 0.5                          56 to 46
               0.5 to 5                              46                              P
               5 to 30                               50
NOTE: The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to
0.5 MHz.

The measurement is made according to ANSI C63.10
Conclusion: PASS
Test graphs as below:




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                                                                                                           No. I19Z61557-IOT02
                                                                                                                 Page85 of 87

Traffic :


                            80

                            75

                            70

                            65

                            60

                            55

                            50

                            45
            Level in dBuV




                            40

                            35

                            30

                            25

                            20

                            15

                            10

                             5

                             0
                             150k       300    400 500    800   1M           2M     3M    4M   5M    6     8    10M          20M     30M
                                                                       Frequency in Hz




Final Result 1
 Frequency QuasiPeak Meas. Time                                       Bandwidt PE Line Corr. Margin    Limit
     (MHz)    (dBµV)       (ms)                                               h         (dB)    (dB) (dBµV)
 0.150000                        54.0           15000.0              9.000 (kHz) On N  28.9  12.0    66.0
 0.172500                        49.7           15000.0              9.000               On    L1          24.6         15.1         64.8
 0.190500                        46.0           15000.0              9.000               On    L1          21.5         18.0         64.0
 0.249000                        44.2           15000.0              9.000               On    L1          20.0         17.6         61.8
 0.370500                        42.8           15000.0              9.000               On    L1          20.0         15.7         58.5
 0.622500                        45.9           15000.0              9.000               On    L1          20.0         10.1         56.0


Final Result 2
 Frequency Average Meas. Time                                    Bandwidt PE Line Corr. Margin    Limit
     (MHz)  (dBµV)       (ms)                                            h         (dB)    (dB) (dBµV)
 0.154500                        40.9         15000.0           9.000 (kHz) On L1 28.0  14.8    55.8
 0.312000                        42.2         15000.0           9.000              On     L1             20.0         7.7          49.9
 0.627000                        34.9         15000.0           9.000              On     L1             20.0         11.1         46.0
 1.041000                        36.7         15000.0           9.000              On     L1             19.9         9.3          46.0
 1.401000                        33.3         15000.0           9.000              On     L1             19.8         12.7         46.0
 2.332500                        31.6         15000.0           9.000              On     L1             19.8         14.4         46.0




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                                                                                                           No. I19Z61557-IOT02
                                                                                                                 Page86 of 87

Idle:


                            70

                            65

                            60

                            55

                            50

                            45

                            40
            Level in dBuV




                            35

                            30

                            25

                            20

                            15

                            10

                             5

                             0
                             150k       300    400 500    800   1M           2M     3M    4M   5M    6     8    10M            20M     30M
                                                                       Frequency in Hz




Final Result 1
 Frequency QuasiPeak Meas. Time                                       Bandwidt PE Line Corr. Margin    Limit
     (MHz)    (dBµV)       (ms)                                               h         (dB)    (dB) (dBµV)
 0.150000                        51.4           15000.0              9.000 (kHz) On L1 28.9  14.6    66.0
 0.411000                        51.0           15000.0              9.000               On    L1          20.0         6.6            57.6
 0.739500                        45.2           15000.0              9.000               On    N           20.0         10.8           56.0
 1.536000                        45.4           15000.0              9.000               On    N           19.8         10.6           56.0
 1.963500                        44.5           15000.0              9.000               On    N           19.8         11.5           56.0
 3.169500                        48.5           15000.0              9.000               On    L1          19.8         7.5            56.0


Final Result 2
 Frequency Average Meas. Time                                    Bandwidt PE Line Corr. Margin     Limit
     (MHz)  (dBµV)       (ms)                                            h         (dB)     (dB) (dBµV)
 0.312000                        42.0         15000.0           9.000 (kHz) On L1 20.0  7.9      49.9
 0.618000                        40.2         15000.0           9.000              On     L1             20.0         5.8            46.0
 1.027500                        38.8         15000.0           9.000              On     L1             19.9         7.2            46.0
 1.531500                        37.0         15000.0           9.000              On     L1             19.8         9.0            46.0
 1.954500                        38.2         15000.0           9.000              On     L1             19.8         7.8            46.0
 3.232500                        36.1         15000.0           9.000              On     L1             19.8         10.0           46.0




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                                                     No. I19Z61557-IOT02
                                                           Page87 of 87




ANNEX E: Accreditation Certificate




                         ***END OF REPORT***




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Document Created: 2019-09-25 16:23:25
Document Modified: 2019-09-25 16:23:25

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