HS 300 (serv.man3) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 20

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Report No. JSH006030124-001 
Page 19 of 81  
4.3 Test Setup and Test Procedure 
 
The disturbance power was measured with the EUT in a shielded room. 
The EUT was placed on a non-metallic table at least 0.4m from other metallic surface and the 
mains lead of EUT was extended to about 6m long. The absorbing clamp was moved along the lead to 
obtain maximum disturbance.  
The EUT was set to achieve the maximum emission level, and for each point which appears a 
relevant high emission level, the absorbing clamp was moved around the lead to get the maximum 
disturbance value. 
The bandwidth of test receiver was set at 120kHz. 
  The frequency range from 30MHz to 300MHz was checked. 
Amplitude measurements were performed with a quasi-peak detector and, if necessary, with an 
average detector. 
 
4.3.1 Photo of test setup  
 none 
 
4.4 Test Protocol 
 
Temperature  
20
°C 
   
Relative Humidity 
40 % 
 
Frequency  
(MHz) 
 
Quasi-peak 
Disturbance level       Permitted limit 
       dB(pW)                    dB(pW) 
Average 
Disturbance level       Permitted limit 
       dB(pW)                    dB(pW) 
30.00 *  45.00  * 35.00 
45.18 *  45.56  * 35.56 
65.00 *  46.30  * 36.30 
90.00 *  47.22  * 37.22 
150.00 *  49.44  * 39.44 
180.00 *  50.56  * 40.56 
220.00 *  52.04  * 42.04 
300.00 *  55.00  * 45.00 
 
Note: * means the emission level 10dB lower than the relevant limit. 
 
 
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