Harman Kardon DVD 22 (serv.man2) EMC - CB Certificate ▷ View online
Test report no. JSH0311046-001
Page 9 of 21
Recorded data for test of input immunity from unwanted signals inside the VHF band II range
Limit
n
f
[dB(uV)](75
ς) 1KHz
FN dev, 40KHz
Fn(MHz) Ff(MHz)
mono stereo
Result
97.5 and 98.5
85
85
97.6 and 98.4
85
85
97.65 and 98.35
80
80
97.7 and 98.3
72
72
97.75 and 98.25
63
63
97.8 and 98.2
59
58
97.85 and 98.15
57
47
97.9 and 98.1
53
32
97.925 and 98.075
49
20
97.95 and 98.05
41
14
97.975 and 98.025
34
14
98
98 29
20
Test report no. JSH0311046-001
Page 10 of 21
5.2 Requirements for immunity to RF voltages ( in common mode)
5.2.1 Test result
Pass Fail Not Applicable
5.2.2 Operating environment
Temperature: 22
5.2.1 Test result
Pass Fail Not Applicable
5.2.2 Operating environment
Temperature: 22
°C
Relative Humidity: 55%
5.2.3 Test set-up
5.2.3 Test set-up
The requirements for receivers,(including car radios and AM receivers), multifunction
equipment and video tape equipment concerning the immunity to RF voltages in common model are
restricted to the antenna terminals and to the frequency range form 26MHz to 30MHz.
5.2.4 Test protocol
NA
Frequency (MHz)
restricted to the antenna terminals and to the frequency range form 26MHz to 30MHz.
5.2.4 Test protocol
NA
Frequency (MHz)
Level ([dB(uV)])
e.m.f.
e.m.f.
Result
26-30
126
Test report no. JSH0311046-001
Page 11 of 21
6. Immunity requirements at loudspeaker and headphone output connector
6.1 Test result
Pass Fail Not Applicable
6.2 Operating environment
Temperature: 22
°C
Relative Humidity: 55%
6.3 Test set-up
The wanted test signal is supplied by generators G1,G2,G3 and G4, via the respective connections A or
V or S or T and the unwanted signal is supplied by generator G5. Network RCi matches the RF
disturbance source to the input impedance of the relevant audio terminal and a similar network Rco is
used to match the output terminals. Mains stop filter MSF is used to inject the unwanted signal at the
mains terminal and acts as a stop filter for unwanted signals from the mains network.
The equipment under test is placed 0.1m above the centre of a metal ground plane of dimensions 2m by
1m. The mains lead shall be bundled to a length less than 0.3m and connected in the shortest possible
way to the mains stop filter MSF. The connection between the metal ground plane and the shield of the
RF cable at the audio input and output terminals shall be as short as possible.
The connecting cables are of the 50
6.3 Test set-up
The wanted test signal is supplied by generators G1,G2,G3 and G4, via the respective connections A or
V or S or T and the unwanted signal is supplied by generator G5. Network RCi matches the RF
disturbance source to the input impedance of the relevant audio terminal and a similar network Rco is
used to match the output terminals. Mains stop filter MSF is used to inject the unwanted signal at the
mains terminal and acts as a stop filter for unwanted signals from the mains network.
The equipment under test is placed 0.1m above the centre of a metal ground plane of dimensions 2m by
1m. The mains lead shall be bundled to a length less than 0.3m and connected in the shortest possible
way to the mains stop filter MSF. The connection between the metal ground plane and the shield of the
RF cable at the audio input and output terminals shall be as short as possible.
The connecting cables are of the 50
Ω coaxial type.
The unwanted signal was amplitude modulated with 1kHz at 80% depth, supplied by generator G5.
6.4 Performance Criterion : A
6.4 Performance Criterion : A
Test report no. JSH0311046-001
Page 12 of 21
6.5 Figure for test set up
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