ON BEAT RUMBLE (serv.man3) - JBL Audio EMC - CB Certificate (repair manual). Page 39

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Report No.:
 
EM201200813-7 
                       
Application No.:
 
ZJ00024740  
                  
Page 39 of 47
 
 
5.6 IMMUNITY TO ELECTROMAGNETIC FIELDS KEYED CARRIER (S5) 
5.6.1 TEST REQUIREMENT 
Test Requirement: 
EN 55020 
Test Method: 
EN 55020 
Criterion Required: 
Wanted Signal:  
60dBuV 1KHz FM with 40KHz deviation at 98MHz for FM 
mode.   
 
1KHz Test sine wave for AUX mode.   
Unwanted Signal:  
900MHz, 3V/m, duty cycle 1/8, 217Hz repetition frequency  
 
 
5.6.2 TEST RESULTS 
 
Test:   Immunity Radiated Fields S5 
 
 Test Mode:         Amplifier -                  Monitor:        Speaker 
 Operating Mode:  LINE IN                           S/N:            92.3 dB 
 Frequency:       -                                 AF Level:       66.1 mW 
   
 Interf. Signal: Scan 
70
80
90
100
110
120
130
140
150
Level [dB礦/m]
895M896M
898M
900M
902M
904M905M
Frequency [Hz]
 
 
 
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