Harman Kardon AVR 270 (serv.man4) EMC - CB Certificate ▷ View online
Anam Electronics Co., Ltd. Page 9 of 57
AVR270/230
EMC Test Report
Reference No.: NK-12-E-569
4.3.2 Compliance criteria for EN 55020
●Criteria A
The equipment shall continue to operate as intended during the test.
No change of actual operating state (for example change of channel) is allowed as a result of the
application of the test.
Multifunction equipment shall for each function meet the relevant requirements. Evaluation is carried
out for audio and video functions. The equipment is supposed to operate as intended if the criteria of
① and/or ② are fulfilled.
① Evaluation of audio quality
Unless otherwise specified in this standard, the criterion of compliance with the requirement is a
wanted to unwanted audio signal ratio of ≥40 dB at a wanted audio signal level of 50 mW, or at
another audio signal level specified by the manufacturer. If the S/N ratio is less than 43 dB, the
performance criterion for audio assessment is the actual S/N ratio minus 3 dB. In this case, at the
beginning of the audio quality evaluation the actual S/N ratio is measured and noted in the test report
as reference value. For AM sound receivers the criterion is ≥26 dB at 50 mW. For AM and FM car
radios and for broadcast receiver cards for computers the criterion is ≥26 dB at 500 mW.
No change of actual operating state (for example change of channel) is allowed as a result of the
application of the test.
Multifunction equipment shall for each function meet the relevant requirements. Evaluation is carried
out for audio and video functions. The equipment is supposed to operate as intended if the criteria of
① and/or ② are fulfilled.
① Evaluation of audio quality
Unless otherwise specified in this standard, the criterion of compliance with the requirement is a
wanted to unwanted audio signal ratio of ≥40 dB at a wanted audio signal level of 50 mW, or at
another audio signal level specified by the manufacturer. If the S/N ratio is less than 43 dB, the
performance criterion for audio assessment is the actual S/N ratio minus 3 dB. In this case, at the
beginning of the audio quality evaluation the actual S/N ratio is measured and noted in the test report
as reference value. For AM sound receivers the criterion is ≥26 dB at 50 mW. For AM and FM car
radios and for broadcast receiver cards for computers the criterion is ≥26 dB at 500 mW.
② Evaluation of picture quality
In the evaluation of picture interference the wanted test signal produces a standard picture (in the case
of video tape equipment on the screen of the test-tv-set) and the unwanted signal produces a
degradation of the picture. The degradation may be in a number of forms, such as a superposed pattern,
disturbance of synchronization, geometrical distortion, loss of picture contrast, of colour, etc. The
criterion of compliance with the requirement is just perceptible degradation by observation of the
picture. The screen shall be observed under normal viewing conditions (brightness 15 lx to 20 lx), at a
viewing distance of six times the height of the screen. The picture quality can also be evaluated by
using objective measurement methods; one such method is described in Annex K. In the case of video
tape equipment the test criteria relate to the picture, assessed on a test-tv-set, which is connected to the
video output terminal of the equipment.
In the evaluation of picture interference the wanted test signal produces a standard picture (in the case
of video tape equipment on the screen of the test-tv-set) and the unwanted signal produces a
degradation of the picture. The degradation may be in a number of forms, such as a superposed pattern,
disturbance of synchronization, geometrical distortion, loss of picture contrast, of colour, etc. The
criterion of compliance with the requirement is just perceptible degradation by observation of the
picture. The screen shall be observed under normal viewing conditions (brightness 15 lx to 20 lx), at a
viewing distance of six times the height of the screen. The picture quality can also be evaluated by
using objective measurement methods; one such method is described in Annex K. In the case of video
tape equipment the test criteria relate to the picture, assessed on a test-tv-set, which is connected to the
video output terminal of the equipment.
●Criteria B
The equipment shall continue to operate as intended after the test. No loss of function is allowed after
the test when the apparatus is used as intended, but failures which are recovered automatically but
which cause temporary delay in processing, are permissible. No change of actual operating state for
example change of channel or stored data and settings is allowed as a result of the application of the
test. During the test, degradation of performance is allowed.
the test when the apparatus is used as intended, but failures which are recovered automatically but
which cause temporary delay in processing, are permissible. No change of actual operating state for
example change of channel or stored data and settings is allowed as a result of the application of the
test. During the test, degradation of performance is allowed.
4.4 Measurement Uncertainty
The result of measurements of emissions from ITE shall reference the measurement instrumentation
uncertainty considerations contained in CISPR 16-4-2.
uncertainty considerations contained in CISPR 16-4-2.
●EMCIT document 93/30
●NAMAS Information Sheet NIS81, Ed.1 May 1994
●NAMAS Information Sheet NIS81, Ed.1 May 1994
(The treatment of uncertainties in EMC measurement).
The measurement uncertainty is not considered when deciding PASS or FAIL against the limit lines.
This means that “shared risk” (according to NAMAS publication NIS81 4.2) is used as option
Criterion. The argument for using this method, is that it is commonly accepted that the EMC limits
have already taken common good laboratory practice.
This means that “shared risk” (according to NAMAS publication NIS81 4.2) is used as option
Criterion. The argument for using this method, is that it is commonly accepted that the EMC limits
have already taken common good laboratory practice.
4.5 Final Decision
The equipment under test complies to all requirements of the applied test standards.
Anam Electronics Co., Ltd. Page 10 of 57
AVR270/230
EMC Test Report
Reference No.: NK-12-E-569
5. Standards, Deviations and Results
5.1 Applied Test Standards
The following standards have been applied:
●EN 55022:2010 (Class B) :
Limits and methods of measurement of radio disturbance characteristics of information technology
Equipment.
Phenomena Basic
Standards
Result
Conducted Disturbance at the mains ports
EN 55022:2010
Pass
Conducted Disturbance at the
telecommunication ports
EN 55022:2010
Pass
Radiated Disturbance (Below 1 GHz)
EN 55022:2010
Pass
Radiated Disturbance (Above 1 GHz)
EN 55022:2010
Pass
●EN 55024:1998+A1:2001+A2:2003:
Information technology equipment- Immunity characteristics limits and methods of measurement
Phenomena Basic
Standards
Result
Electrostatic Discharge
EN 61000-4-2:2009
Pass
Electromagnetic Field
EN 61000-4-3:2006+A1:2008+A2:2010
Pass
Electric Fast Transients/Burst
EN 61000-4-4:2004+A1:2010
Pass
Surge EN
61000-4-5:2006
Pass
Immunity to Conducted Disturbances
EN 61000-4-6:2009
Pass
50 Hz Magnetic Field
EN 61000-4-8:2010
N/A
Dips/Interruptions EN
61000-4-11:2004
Pass
● EN 55020:2007+A11:2011:
Electromagnetic immunity of broadcast receivers and associated equipment
Phenomena Basic
Standards
Result
(S1)Input immunity to RF voltages
EN 55020:2007+A11:2011
N/A
(S2a)Immunity to RF voltages
EN 55020:2007+A11:2011
N/A
(S2b)Immunity to RF voltages
(in common mode)
EN 55020:2007+A11:2011
N/A
(S3) Immunity from radiated fields
EN 55020:2007+A11:2011
N/A
(S4)Screening effectiveness
EN 55020:2007+A11:2011
N/A
(S6)Immunity to ambient
electromagnetic fields
EN 55020:2007+A11:2011
N/A
Electrostatic Discharge
EN 61000-4-2:2009
Pass
(S5)Electromagnetic Field, keyed carrier
EN 61000-4-3:2006+A1:2008+A2:2010
Pass
Electric Fast Transients/Burst
EN 61000-4-4:2004+A1:2010
Pass
Anam Electronics Co., Ltd. Page 11 of 57
AVR270/230
EMC Test Report
Reference No.: NK-12-E-569
●EN 61000-3-2:2006+A1:2009+A2:2009:
Electromagnetic compatibility(EMC)-Pt.3: Limits-S.2: Limits for harmonic-current emissions
(equipment input current and including 16A)
Phenomena Basic
Standards
Result
Steady State Harmonics
EN 61000-3-2:2006+A1:2009+A2:2009
N/A
Fluctuating Harmonics
EN 61000-3-2:2006+A1:2009+A2:2009
Pass
●EN 61000-3-3:2008:
Electromagnetic compatibility(EMC)-Pt.3: Limits-S.3: Limits for voltage fluctuations and flicker
in low voltage supply systems for equipment with rated current up to and including 16A.
Phenomena Basic
Standards
Result
Flicker EN
61000-3-3:2008
Pass
Voltage Fluctuations
EN 61000-3-3:2008
N/A
5.2 Deviations and Evaluations
●No recorded deviations to the applied standards.
●No general evaluations made.
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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