Harman Kardon DVD 23 (serv.man12) EMC - CB Certificate ▷ View online
Report No. JSH05110331-001
Page 24 of 64
5. Radiated emission
Test result: NA
5.1 Radiated emission limit from frequency range 30MHz – 1000MHz
Equipment type
Source
Frequency (MHz)
Limit value dB(
µV/m)
Quasi-peak
Television receiver,
video recorder and PC
tuner cards
video recorder and PC
tuner cards
Local Oscillator
Other
Other
<=1000
30 to 300
300 to 1000
30 to 230
230 to 1000
30 to 300
300 to 1000
30 to 230
230 to 1000
Fundamental 57*
Harmonic 52
Harmonic 56
40
47
Harmonic 52
Harmonic 56
40
47
Television receiver, and
receivers for broadcast
satellite transmission,
(except outdoor unit)
Infrared remote control
units and infrared
headphone system
receivers for broadcast
satellite transmission,
(except outdoor unit)
Infrared remote control
units and infrared
headphone system
Other
30 to 230
230 to 1000
230 to 1000
40
47
47
Frequency modulation
sound receivers and PC
tuner cards
sound receivers and PC
tuner cards
Local oscillator
Other
Other
<=1000
30 to 300
300 to 1000
.30 to 230
230 to 1000
30 to 300
300 to 1000
.30 to 230
230 to 1000
Fundamental 60
Harmonic 52
Harmonic 56
40
47
Harmonic 52
Harmonic 56
40
47
* in Japan, the limit 57dB
µV/m is relax to 66dBµV/m for operation channel <300MHz and to 70dBµV/m
for operation channel >300MHz.
5.2 Block diagram and test set up
The measurement was applied in an semi-anchonic chamber.
Report No. JSH05110331-001
Page 25 of 64
The EUT and simulators were placed on a 0.8m high wooden turntable above the horizontal metal
ground plane. The turn table rotated 360 degrees to determine the position of the maximum emission
level. The EUT was set 3 meters away from the receiving antenna, which was mounted on an antenna
mask. The antenna moved up and down between from 1meter to 4 meters to find out the maximum
emission level.
Broadband antenna was used as receiving antenna. Both horizontal and vertical polarization of the
antenna were set on measurement. In order to find the maximum emission, all of the interface cables
were manipulated according to EN55022 requirement during radiated test.
The bandwidth setting on R&S Test Receiver ESBI 40 was 120kHz.
The frequency range from 30MHz to 1000MHz was checked.
5.2.1 Photo For test Set-up
ground plane. The turn table rotated 360 degrees to determine the position of the maximum emission
level. The EUT was set 3 meters away from the receiving antenna, which was mounted on an antenna
mask. The antenna moved up and down between from 1meter to 4 meters to find out the maximum
emission level.
Broadband antenna was used as receiving antenna. Both horizontal and vertical polarization of the
antenna were set on measurement. In order to find the maximum emission, all of the interface cables
were manipulated according to EN55022 requirement during radiated test.
The bandwidth setting on R&S Test Receiver ESBI 40 was 120kHz.
The frequency range from 30MHz to 1000MHz was checked.
5.2.1 Photo For test Set-up
5.3 Test Protocol
Temperature: 22
°C
Relative humidity :
30%
Polarization
Frequency
(MHz)
Emission level
(dBuV/m)
Limits
(dBuV/m)
Margin
(dBuV/m)
30.0 40
100.0 40
200.0 40
350.0 47
600.0 47
970.0 47
200.0 40
350.0 47
600.0 47
970.0 47
Fundamental
56
Horizontal
Harmonic
52
30.0 40
71.5 40
71.5 40
200.0 40
350.0 40
600.0 47
970.0 47
350.0 40
600.0 47
970.0 47
Fundamental
56
Vertical
Harmonic
52
Note: * means margin >10dB.
5.4 Emission waveform
5.5 Measurement uncertainty
The measurement uncertainty describes the overall uncertainty of the given measured value
during the operation of the EUT.
Measurement uncertainty is calculated in accordance with CISPR 16-4: 2002.
Measurement uncertainty of mains terminal disturbance voltage :
during the operation of the EUT.
Measurement uncertainty is calculated in accordance with CISPR 16-4: 2002.
Measurement uncertainty of mains terminal disturbance voltage :
± 5.2dB
The measurement uncertainty is given with a confidence of 95%, k=2.
5.6 Additions, Deviations and Exclusions from Standards
None
Report No. JSH05110331-001
Page 26 of 64
6. Harmonics
Test result:
PASS
6.1 Block Diagram of Test Setup
6.2 Test Setup and Test Procedure
Harmonics of the fundamental current were measured up to 40 order harmonics using a digital
power
meter with an analogue output and frequency analyser which was integrated in the harmonic &
flicker
test system. The measurements were carried out under steady conditions .
The appliance has rated input power less than 75W, and is not luminaire , and according to the
standards, no limit apply.
6.2.1 Photo For test Set-up
6.3 Test Protocol
Temperature
:
°C Relative
Humidity : %
6.4 Measurement Uncertainty
The measurement uncertainty for harmonic test is under consideration according to CISPR 16-
4:2002
4:2002
6.5 Additions, Deviations and Exclusions from Standards
None
Harmonic & flicker
test system
test system
EUT
Report No. JSH05110331-001
Page 27 of 64
7. Voltage Fluctuations-Flicker
Test result
PASS
7.1 Block Diagram of Test Setup
7.2 Test Setup and Test Procedure
7.2.1 Definition
Flicker:
impression of unsteadiness of visual sensation induced by a lighting stimulus whose
luminance or spectral distribution fluctuates with time.
Pst:
Short-term flicker indicator The flicker severity evaluated over a short period (in
minutes); Pst=1 is the conventional threshold of irritability
Plt:
long-term flicker indicator; the flicker severity evaluated over a long period (a few
hous)
Using successive Pst valuse.
dc:
the relative steady-state voltage change
dmax:
the maximum relative voltage change
d(t):
the value during a voltage change
7.2.2 Photo For test Set-up
Harmonic & flicker
test system
test system
EUT
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