HS 1000 (serv.man3) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 14

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Report No. SH09021130-001 
Page 13 of 71 
 
3.3 Test Setup and Test Procedure 
 
 
The EUT was set to achieve the maximum emission level. 
The mains terminal disturbance voltage was measured with the EUT in a shielded room. 
The EUT was connected to AC power source through an Artificial Mains Network which provide 
a  50
Ω linear impedance  
 
 Artificial hand is used if appropriate.    
 
The load/control terminal disturbance voltage was measured with passive voltage probe. 
 
For  Table top 
  
 
The EUT was placed on a 0.8m high non-metallic table above a metallic plane, The wall of 
shielded room used as Ground Reference Plane (GRP) 
 
For  Floor standing         
 
The EUT was placed on a 0.1m high non-metallic support above a metallic plane, The wall of 
shielded room used as Ground Reference Plane (GRP) 
 
For Both Table Top and Floor Standing 
 
The EUT keeps a distance of at least 0.8m from any other of the metallic surface. The Artificial 
Mains Network is situated at a distance of 0.8m from the EUT.  
During the test, mains lead of EUT excess 0.8m was folded back and forth parallel to the lead so as 
to form a horizontal bundle with a length between 0.3m and 0.4m. 
 
The bandwidth of test receiver ESCS 30 was set at 9kHz. 
 
The frequency range from 150kHz to 30MHz was checked. 
 
Amplitude measurements were performed with a quasi-peak detector and , if necessary ,with an  
average detector. 
 
For antenna terminal 
 
The measurement was preceded in a shielded room. 
The antenna terminals of the equipment under test and the auxiliary signal generator were 
connected to the measuring receiver by means of coaxial cables and a resistive combining network 
having a minimum attenuation of 6 dB. 
The impedance as seen from the equipment under test was equal to the nominal antenna input 
impedance for which the equipment under test has been designed (75
Ω). 
The output level of the auxiliary signal generator was set to give 70dB(uV) at the input of the 
equipment under test and the signal was an unmodulated carrier. 
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