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Report No.: EM201300221-5                     Application No.:  ZJ00028648                         Page 61 of 68 

 

FCC ID: 

APISPARK  

2. Middle Frequency 2441MHz 

30MHz~1GHz Spurious Emissions .Quasi-Peak Measurement 

1 34.3316 12.80 

16.80 

29.60  40.00  -10.40  Vertical 

2 42.5042 19.75 

12.45 

32.20  40.00  -7.80  Vertical 

3 45.4694 26.13 

11.37 

37.50  40.00  -2.50  Vertical 

4 50.8779 15.82 

9.58 

25.40  40.00  -14.60  Vertical 

5 92.3046 19.20 

9.70 

28.90  43.50  -14.60  Vertical 

6 268.4853  5.68 

14.12 

19.80  46.00  -26.20  Vertical 

7 42.5042  9.65 

12.45 

22.10  40.00  -17.90 Horizontal 

8 78.8659 18.04 

8.46 

26.50  40.00  -13.50 Horizontal 

9 103.8662  9.90 

9.80 

19.70  43.50  -23.80  Horizontal 

10 229.3962  8.69 

12.91 

21.60  46.00  -24.40  Horizontal 

11 256.6826  17.65 

13.85 

31.50  46.00  -14.50  Horizontal 

12 365.7199  14.76 

17.54 

32.30  46.00  -13.70  Horizontal 

 
1~25 GHz Harmonics & Spurious Emissions. Peak & Average Measurement  
Peak Measurement: 

1 15306.102 29.26 

31.60 

60.86  74.00  -13.14  Vertical 

2 17185.254 29.95 

35.66 

65.61  74.00  -8.39 

Vertical 

3 17834.018 29.85 

35.94 

65.79  74.00  -8.21 

Vertical 

4 15883.925 26.17 

32.96 

59.13  74.00  -14.87  Horizontal 

5 16869.777 30.02 

35.22 

65.24  74.00  -8.76  Horizontal 

 
AV Measurement: 

1 15306.102 14.51 

31.60 

46.11

54.00 

-7.89 

Vertical 

2 17185.254 14.97 

35.66 

50.63

54.00 

-3.37 

Vertical 

3 17834.018 15.01 

35.94 

50.95

54.00 

-3.05 

Vertical 

4 15883.925 14.72 

32.96 

47.68

54.00 

-6.32 

Horizontal 

5 16869.777 15.41 

35.22 

50.63

54.00 

-3.37 

Horizontal 

 

The field strength is calculated by adding the Antenna Factor. Correct Factor.  

The basic equation with a sample calculation is as follows: 
Final Test Level =Receiver Reading + Correct Factor 
 

Report No.: EM201300221-5                     Application No.:  ZJ00028648                         Page 62 of 68 

 

FCC ID: 

APISPARK  

3. High Frequency  2480MHz 

30MHz~1GHz Spurious Emissions .Quasi-Peak Measurement 

1 33.3803 12.93 

17.37 

30.30  40.00  -9.70  Vertical 

2 41.0951 17.57 

12.93 

30.50  40.00  -9.50  Vertical 

3 45.2146 24.23 

11.47 

35.70  40.00  -4.30  Vertical 

4 92.3046 18.20 

9.70 

27.90  43.50  -15.60  Vertical 

5 215.6456 11.15 

12.25 

23.40  43.50  -20.10  Vertical 

6 256.6826 11.65 

13.85 

25.50  46.00  -20.50  Vertical 

7 42.0293  6.48 

12.62 

19.10  40.00  -20.90 Horizontal 

8 77.9845 16.82 

8.38 

25.20  40.00  -14.80 Horizontal 

9 191.6416  9.35 

11.45 

20.80  43.50  -22.70  Horizontal 

10 215.6456  11.15 

12.25 

23.40  43.50  -20.10  Horizontal 

11 261.0465  12.55 

13.95 

26.50  46.00  -19.50  Horizontal 

12 343.7977  10.01 

17.09 

27.10  46.00  -18.90  Horizontal 

 
1~25 GHz Harmonics & Spurious Emissions. Peak & Average Measurement  
Peak Measurement: 

1 16948.099 30.09 

35.54 

65.63  74.00  -8.37 

Vertical 

2 17669.566 30.07 

35.73 

65.80  74.00  -8.20 

Vertical 

3 2596.575 50.89 

6.56 

57.45  74.00  -16.55 Horizontal 

4 16106.189 27.49 

33.39 

60.88  74.00  -13.12  Horizontal 

5 16869.777 30.26 

35.22 

65.48  74.00  -8.52  Horizontal 

 
AV Measurement: 

1 16948.099 15.01 

35.54 

50.55 

54.00 

-3.45 

Vertical 

2 17669.566 14.67 

35.73 

50.4 

54.00 

-3.60 

Vertical 

3 2596.575 38.99 

6.56 

45.55 

54.00 

-8.45 

Horizontal 

4 16106.189 15.62 

33.39 

49.01 

54.00 

-4.99 

Horizontal 

5 16869.777 15.31 

35.22 

50.53 

54.00 

-3.47 

Horizontal 

 

Report No.: EM201300221-5                     Application No.:  ZJ00028648                         Page 63 of 68 

 

FCC ID: 

APISPARK  

 

 Remark:  
1). No any other emissions level which are attenuated less than 20dB below the limit. 

According to 15.31(o), The amplitude of spurious emissions from intentional radiators and 
emissions from unintentional radiators which are attenuated more than 20 dB below the 
permissible value need not be reported unless specifically required elsewhere in this Part. 

Hence there no other emissions have been reported. 
2). As shown in Section, for frequencies above 1000 MHz. the above field strength limits are 

based on average limits.  However, the peak field strength of any emission shall not exceed 
the maximum permitted average limits specified above by more than 20 dB under any 
condition of modulation.   

3). The test only perform the EUT in transmitting status since the test frequencies were over 

1GHz only required transmitting status. 

  

Report No.: EM201300221-5                     Application No.:  ZJ00028648                         Page 64 of 68 

 

FCC ID: 

APISPARK  

 

Section 15.247 (d) In any 100 kHz bandwidth outside the frequency band in which the spread 
spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is 
produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth 
within the band that contains the highest level of the desired power, based on either an RF 
conducted or a radiated measurement, provided the transmitter demonstrates compliance with the 
peak conducted power limits. If the transmitter complies with the conducted power limits based on 
the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, 
the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below 
the general limits specified in Section 15.209(a) is not required. 

1.  Check the calibration of the measuring instrument using either an internal calibrator or a known 

signal from an external generator. 

2.  Position the EUT without connection to measurement instrument. Turn on the EUT and 

connect its antenna terminal to measurement instrument via a low loss cable. Then set it to any 
one measured frequency within its operating range, and make sure the instrument is operated in 
its linear range. 

3.  Set RBW to 100 kHz and VBW of spectrum analyzer to 300 kHz with a convenient frequency 

span including 100 kHz bandwidth from band edge. 

Note: For Restricted Band  
RBW=100 kHz 
VBW=300 kHz 

4.  Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot 

the graph with marking the highest point and edge frequency. 

Repeat above procedures until all measured frequencies were complete. 

 

 

 
 

Test result plot as follows: 

 

EUT 

Spectrum analyzer