AVR 170 (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 10

Reference No. : 54121205C                                                                                                                  Page 10/40

 

◀  Anam EMC Test Laboratory  ▶

 

 
Disturbance radiation due to the other source.   

Channel Harmonic 

Measured 

freq. (㎒) 

Limit 

(㏈㎶/m) 

Disturbance value(㏈㎶/m) 

Horizon Vertical 

  

43.50 

40.0 

34.8 

37.0 

Others  172.03 

40.0 

33.5 32.8 

  

202.80 

40.0 

28.8 * 

 30 

~ 

350.00 

47.0 

42.7 34.3 

 

1,000  ㎒ 

450.00 

47.0 

44.2 42.5 

  

550.00 

47.0 

41.1 39.2 

  

800.00  47.0 

39.8 39.6 

 

 

 

 

 

 

 

 

 

 

 

 

 

*: More than margin 7.0 ㏈㎶/m 

 

Limit according to EN55013:2001+A2(2006)

 

 
 
7. ANTENNA TERMINAL DISTURBANCE VOLTAGE IN THE   
  FREQUENCY RANGE 30MHz TO 1,000MHz

 

 
  7.1. Operating environment 

Temperature 

: 23℃ 

Relative humidity  : 37% 

 
    7.2. Test set-up and procedure 

Measurements were performed in the frequency range 30 ㎒ to 1,000 ㎒. 

 

The level of the test signal, which was connected to the receiver through a 
combining network, was set to give 70 ㏈㎶  at the input of the EUT. 
The signal was an unmodulated carrier. 
Disturbance voltage due to the local oscillator, it’s fundamental and harmonic 
frequencies was measured with the receiver tuned to a selected number of FM 
sound broadcast channels. Disturbance voltage due to all other sources was 
measured with the receiver tuned to the channel 98.3 ㎒ respectively. 

 
   7.3. Measurement uncertainty 
 

Antenna terminal disturbance voltage, Quasi-peak detection:  ±2.0 ㏈ 

 

The measurement uncertainty describes the overall uncertainty of the given 

 

measured value during the operation of the EUT in the above-mentioned way.