AVR 335 - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 16

Reference No. : 54120503C                                                                                                                        Page 14

 

◀  Anam EMC Test Laboratory  ▶

 

 
8. DISTURBANCE POWER 

8.1. Operating environment 

Temperature 

: 12℃ 

Relative humidity  : 40% 

 
      8.2. Test set-up and procedure 
 

The EUT was placed on a non-metallic table of 0.8m height. At the side of the 

 

EUT a non-metallic table of 6m length was placed to provide for movement of 

 

the absorbing clamp. The absorbing clamp was applied successively to all leads 

 

whose length was 25 ㎝  or longer, unscreened or screened. For the read, the 

 

maximum measured value at each frequency which was obtained when the 

 

absorbing clamp is moved along the lead was registered. No metallic object, 

 

including a possible other unit of the EUT or any person, was closer to the lead 

 

or unit than 0.8m. All screened and unscreened cables were measured with an 
absorbing clamp, according to EN 55013, 5.6. 

 
   8.3. Measurement uncertainty 
 

Radio interference power:  ±2.0 ㏈ 

 

The Measurement uncertainty describes the overall uncertainty of the given   
measured value during operation of the EUT in the above-mentioned way. 

 
   8.4. Test instrumentation 

Equipment 

Manufacturer 

Type No. 

Serial No. 

Spectrum monitor 

R & S 

EZM 

862064/004 

R & S 

ESVP 

861743/024 

Measurement 
receiver 

R & S 

ESCS30 

847124/017 

Absorbing clamp 

R & S 

MDS 21 

860846/006 

Oscillator Kenwood 

AG-203A 

3090241 

 

* R & S: Rohde & Schwarz 

 

8.5. Test protocols 

 

Date: December 08, 2004 

 

The equipment does comply with the requirements. 

 

Operating condition: The EUT continuously operated with audio frequency 
of 1,000 ㎐  being supplied from the Oscillator. 
An absorbing clamp was placed around all leads.   
At each mode, the maximum value at each testing frequency and each output 
lead was registered and attached as follows.