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Nemko USA, Inc. 

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Figure 8. RF Common Mode Immunity Test Setup Diagram  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

1.  Test Laboratory 
2.  AC power for EUT  
3.  Ground Plane 
4.  10cm wooden Platform 
5.  Test Generator 
6.  Current Probe 
7.  Coupling/Decoupling Network 
8.  Coupling/Decoupling Network 
9.  EUT 
10.  Associated System, if needed. 

 

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Nemko USA, Inc. 

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ETSI 301 489-1 specifies the EN 61000-4-11 Standard as the basic standard for voltage variations immunity 
testing. This standard relates to the immunity requirements, test methods, and range of recommended test levels 
for immunity to variations in AC line voltage. The standard configuration as outlined in the EN 61000-4-11: 
2004 was used. The EUT is powered up to a nominal voltage of 230 VAC 50 Hz, and then software-controlled 
voltage dips and interruptions are introduced. The EUT is tested with a 30% reduction for 0.5 periods, repeated 
once per minute for 3 repetitions. Next the dip is changed to a 60% reduction for 5 periods with the same rate 
for 3 repetitions. Finally a voltage interruption is performed with a >95% reduction for 250 periods. This is also 
repeated 3 times at 1-minute intervals. 
 
For further information, please refer to the technical sections of the EN 61000-4-11: 2004 Standard in addition 
to the test results section and photographs of the test set-up provided in this report. 
 

Nemko USA, Inc. 

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1.  Test Laboratory (6 X 6 meters) 
2.  AC Power for Devices 
3.  120/208VAC/60Hz Power for Harmonics/Flicker Test Equipment 
4.  115V/60 Hz Power Distribution Box  
5.  Power Source Rack with Computer Analysis System 
6.  Non-conducting table 
7.  EUT 

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Nemko USA, Inc. 

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Client Harman 

Multimedia 

Temperature 

24 

°C 

PAN # 

12076-3 

Relative Humidity 

64 

% 

EUT Name 

Bluetooth Portable Loudspeaker 

Barometric Pressure  101.4 

kPa 

EUT Model  

On Tour XTB 

Test Location 

Enclosure 1 

Governing Doc 

EN 301 489-1 

Test Engineer 

Alan Laudani 

Basic Standard 

EN 55022 

Date 

8-4-08