Harman Kardon DVD 30 EMC - CB Certificate ▷ View online
Test report no. 305945E
Page 5 (14)
5. MAINS TERMINAL CONTINUOUS DISTURBANCE VOLTAGE
IN THE FREQUENCY RANGE 0,15 MHz TO 30 MHz
5.1 Operating environment
Temperature: 23
°C
Relative Humidity:
36 %
5.2 Test set-up and test procedure
0,4m
AMN
EUT
> 0,8m
The mains terminal disturbance voltage was measured with the equipment under test (EUT) in a screened
room. The EUT was connected to an artificial mains network (AMN) placed on the floor. The EUT was
placed on a non-metallic table 0,8 m above the metallic, grounded floor and 0,4 m from the reference
ground plane (RGP) wall. The distance to other metallic surfaces was at least 0,8 m.
Amplitude measurements were performed with a quasi-peak detector and, if required, with an average
detector.
Test report no. 305945E
Page 6 (14)
5.3 Measurement uncertainty
Mains terminal disturbance voltage, quasi-peak detection:
Mains terminal disturbance voltage, quasi-peak detection:
± 3,6 dB
Mains terminal disturbance voltage, average detection:
± 3,6 dB
The measurement uncertainty describes the overall uncertainty of the given measured value during the
operation of the EUT in the above mentioned way.
Measurement uncertainty is calculated in accordance with EA-4 /02:1997.
The measurement uncertainty is given with a confidence of 95%.
5.4 Test equipment
Equipment Manufacturer
Type SEMKO
No.
Test site:
Shielded room
5152
Software
Rohde & Schwarz ES-K1, version 1.60
Measurement receiver
Rohde & Schwarz ESH-3
2715
Spectrum monitor
Rohde & Schwarz EZM
8598
Artificial mains network
Rohde & Schwarz ESH3-Z5
5875
Test report no. 305945E
Page 7 (14)
5.5 Test protocol
Date of test: 4 June, 2003
DVD-mode.
An overview sweep performed with peak detector is included in the test report, see below.
Date of test: 4 June, 2003
DVD-mode.
An overview sweep performed with peak detector is included in the test report, see below.
Quasi-Peak
Average
Frequency Disturbance Permitted Disturbance Permitted
level limit level limit
/MHz /dB(µV) /dB(µV) /dB(µV) /dB(µV)
0,15 24 66 <20 56
0,16 48 65 33 55
0,22 38 63 29 53
0,27 32 61 28 51
0,32 32 60 31 50
0,59 31 56 30 46
1,14 31 56 30 46
3,68 33 56 33 46
0,16 48 65 33 55
0,22 38 63 29 53
0,27 32 61 28 51
0,32 32 60 31 50
0,59 31 56 30 46
1,14 31 56 30 46
3,68 33 56 33 46
23,12 31 60 21 50
24,85 28 60 <20 50
29,99 33 60 28 50
24,85 28 60 <20 50
29,99 33 60 28 50
0
10
20
30
40
50
60
70
80
Level [dBµV]
150k
300k
500k
1M
2M
3M 4M 5M
7M
10M
30M
Frequency [Hz]
Test report no. 305945E
Page 8 (14)
6. CONTINUOUS DISTURBANCE POWER
IN THE FREQUENCY RANGE 30 MHz TO 300 MHz
6.1 Operating environment
Temperature: 23
°C
Relative Humidity:
36 %
6.2 Test set-up and test procedure
Floor
EUT
clamp
6 m
80 cm
The disturbance power has been measured with the EUT placed on a non-metallic table at least 0,8 m from
other metallic objects and the cable was extended to more than 6 m. The absorbing clamp was placed
around the cable and adjusted along the cable to obtain maximum disturbance.
Amplitude measurements were performed with a quasi-peak detector and, if required, with an average
detector.
6.3 Measurement uncertainty
Disturbance power, quasi-peak detection:
± 4,2 dB
Disturbance power, average detection:
± 4,2 dB
The measurement uncertainty describes the overall uncertainty of the given measured value during
operation of the EUT in the above mentioned way.
Measurement uncertainty is calculated in accordance with EA-4 /02:1997.
The measurement uncertainty is given with a confidence of 95%.
6.4 Test equipment
Equipment Manufacturer
Type SEMKO
No.
Measurement receiver
Rohde & Schwarz ESVS10
7995
Spectrum analyzer
Hewlett Packard 8568A
2456/5146
Absorbing clamp
Lüthi
MDS 21
4950
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