FLIP II (serv.man8) - JBL Audio EMC - CB Certificate (repair manual). Page 67

Report No.: EM201300388-5                     Application No.:  ZJ00030592                        Page 67 of 71 

 

FCC ID: 

APIFLIP2  

 

 

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