SPARK (serv.man7) - JBL Audio EMC - CB Certificate (repair manual). Page 35

Report No.:  EM201300221-2                Application No.:  ZJ00028648                       Page 35 of 48 

 

 

Basic Standard 

EN 61000-4-6:2009 

Frequency Range 

0.15 MHz-80 MHz 

Field Strength 

3 V 

Modulation 

1 kHz,80% AM 

Frequency Step 

1% 

Dwell time 

2s 

1)  Set up the EUT, CDN as shown on Section 5.7.3 
2)  Let the EUT work in test mode and measure it. 
3)   The EUT are placed on an insulating support 0.1m high above a ground reference plane. CDN 

(coupling and decoupling device) is placed on the ground plane about 0.3m from EUT. Cables 
between CDN and EUT are as short as possible, and their height above the ground reference 
plane shall be between 30 and 50 mm (where possible). 

4)  The disturbance signal described below is injected to EUT through CDN. 
5)  The EUT operates within its operational mode(s) under intended climatic conditions after 

power on. 

6)  The frequency range is swept from 150 kHz to 80MHz using 3V signal level, and with the 

disturbance signal 80% amplitude modulated with a 1 kHz sine wave. 

7) The rate of sweep shall not exceed 1.5*10-3decades/s. Where the frequency is swept 

incrementally, the step size shall not exceed 1% of the start and thereafter 1% of the preceding 
frequency value. 

8) Recording the EUT operating situation during compliance testing and decide the EUT 

immunity criterion.