Read Harman Kardon AVR 270 (serv.man4) EMC - CB Certificate online
Anam Electronics Co., Ltd. Page 12 of 57
AVR270/230
EMC Test Report
Reference No.: NK-12-E-569
6. Conducted Disturbance at the Mains Port
6.1 Test Procedure
The measurements were performed in a shielded enclosure. EUT was connected to an Artificial
Mains Network (AMN). EUT was placed on a wooden table 0.8 m above the grounded floor and at
least 0.4 m from the reference ground plane (wall), EUT was placed at least 0.8 m from, and
connected via a 1 m mains cable, to the AMN.
The measurements on the terminals for mains connection were conducted between neutral and ground,
and between phase and ground, in the frequency range 150 kHz to 30 MHz.
A peak detector scan was conducted over the defined frequency range on all phases. A comparison
of the results obtained from the different phases was then conducted to find the most emitting phase
for each frequency. This “Worst Case” scan with quasi-peak detector & average detector was presented
detector. Instrumentation used during this session:
Instruments Manufacturer
Model
Serial or Firmware
(No./Ver.)
(No./Ver.)
Due to
Calibration
Calibration
EMI Test Receiver
Rohde & Schwarz
ESCI
101041
2013.04
Software Rohde
&
Schwarz
EMC32
8.40.0
-
TWO-LINE
V-NETWORK
V-NETWORK
Rohde & Schwarz
ENV216
101156
2013.04
Artificial Mains
Network
Network
Rohde & Schwarz
ESH2-Z5
100273
2013.04
ISN SCHWARZBECK
ISN
CAT
6
8158-0036
2013.05
6.2 Measurement Uncertainty
Mismatch + 0.81, u
c
= 1.43 dB
U = 2 x 1.43 = 2.86 dB
U = ku
U = ku
c
(CL is 95 %, k = 2)
Mismatch - 0.89, u
c
= 1.45 dB
U = 2 x 1.45 = 2.9 dB
U = ku
U = ku
c
(CL is 95 %, k = 2)
6.3 Test Parameters
Port:
a.c. mains Test
Engineer:
Wonho Son
Test Standard:
EN 55022:2010 (Class B)
Frequency Range:
Frequency Step: IF
Bandwidth: Measurement
Time:
150 kHz – 30 MHz
5 kHz
9 kHz
0.2 s
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