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Report No：W-N-1002010-CY-01-1                                                                                                       

 

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According to EN 55020:2007, item 5.4, for Measurement of immunity to RF voltage 
(common mode) at antenna terminal. 
For this EUT is without antenna terminal, there is no requirement for measuring 
immunity to RF voltage, and adverse signal do not occur. 

 
The test requirement was in accordance with EN 55020: 2007, item 5.4. 
 
 
 
 
 
 

Report No：W-N-1002010-CY-01-1                                                                                                       

 

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Equipment not fitting inside the open strip line shall be measured according 

IEC61000-4-3 in the frequency range 80MHz to 150MHz 

Test Item 

Test Specification 

Radiated Signal(S3) 

80-150MHz  

(AM 80% depth, with 1kHz) 

3V/m. 

Limits of immunity to ambient electromagnetic fields of equipment with audio or video 
functions 

Frequency 

MHz 

Level 

dB (µV/m) 

0.15  to  150 

125 

 
The test requirement was in accordance with EN 55020: 2007, item 5.8 
 

 
No deviation 
 

Report No：W-N-1002010-CY-01-1                                                                                                       

 

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Immunity Against Radiated RFI (S3) 
 

EUT

Sound 

Generator

● Source In (2)

● Speaker (R/L)

● Subwoofer

● AC Power

MBS

AC Power Source

Test System

Interfering Signal ●

Audio Analyzer ●

AC Power ●

Isolation Transformer

BS 

Shielding Room

50/150Ω

150Ω Att

 

 
 

Report No：W-N-1002010-CY-01-1                                                                                                       

 

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