DOWNLOAD JBL CINEMA SOUND 5 (serv.man2) Service Manual ↓ Size: 2.02 MB | Pages: 95 in PDF or view online for FREE

Model
CINEMA SOUND 5 (serv.man2)
Pages
95
Size
2.02 MB
Type
PDF
Document
EMC - CB Certificate
Brand
Device
Audio
File
cinema-sound-5-sm2.pdf
Date
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JBL CINEMA SOUND 5 (serv.man2) EMC - CB Certificate ▷ View online

 
 
Report No. JSH006110138-001 
Page 28 of 94  
5.2 Block diagram and test set up 
 
 
The measurement was applied in an semi-anchonic chamber.  
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
 
        none 
 
5.3 Test Protocol 
 
Temperature:  20 
°C 
 
Relative humidity :  
45% 
FM mode: 
Polarization 
 
Frequency 
(MHz) 
Emission level 
(dBuV/m) 
Limits 
(dBuV/m) 
Margin 
(dBuV/m) 
30.0 *  40  * 
100.0 *  40  * 
167.7 *  40  * 
223.6 *  40  * 
619.0 45.4  47  1.6 
 
 
 
Horizontal 
1000.0 *  47  * 
30.0 *  40  * 
100.0 *  40  * 
167.7 *  40  * 
223.6 *  40  * 
619.0 44.2  47  2.8 
 
 
 
Vertical 
1000.0 *  47  * 
Note: * means margin >10dB. 
 
 
Report No. JSH006110138-001 
Page 29 of 94  
Side USB mode: 
Polarization 
 
Frequency 
(MHz) 
Emission level 
(dBuV/m) 
Limits 
(dBuV/m) 
Margin 
(dBuV/m) 
30.0 *  40  * 
100.0 *  40  * 
167.7 *  40  * 
223.6 *  40  * 
619.0 44.6  47  2.4 
 
 
 
Horizontal 
1000.0 *  47  * 
30.0 *  40  * 
100.0 *  40  * 
167.7 *  40  * 
223.6 *  40  * 
619.0 45.7  47  1.3 
 
 
 
Vertical 
1000.0 *  47  * 
Note: * means margin >10dB. 
 
 
Rear USB mode: 
Polarization 
 
Frequency 
(MHz) 
Emission level 
(dBuV/m) 
Limits 
(dBuV/m) 
Margin 
(dBuV/m) 
30.0 *  40  * 
100.0 *  40  * 
167.7 *  40  * 
223.6 *  40  * 
619.0 45.2  47  1.8 
 
 
 
Horizontal 
1000.0 *  47  * 
30.0 *  40  * 
68.9 31.9  40  8.1 
167.7 *  40  * 
223.6 *  40  * 
619.0 45.5  47  1.5 
 
 
 
Vertical 
1000.0 *  47  * 
Note: * means margin >10dB. 
 
 
Report No. JSH006110138-001 
Page 30 of 94  
 
5.4 Emission waveform 
FM mode Horizontal: 
0
10
20
30
40
50
60
70
80
Level [dB
/m]
礦
30M
50M
70M
100M
200M
300M
500M
700M
1G
Frequency [Hz]
x
x
x 
MES  cs5_h1_red            
MES  cs5_h1_pre            
LIM EN 55022 F 3 QP
Field Strength QP
 
       
      FM mode  Vertical: 
 
0
10
20
30
40
50
60
70
80
Level [dB
/m]
礦
30M
50M
70M
100M
200M
300M
500M
700M
1G
Frequency [Hz]
x
x
x
x 
MES  cs5_v1_red            
MES  cs5_v1_pre            
LIM EN 55022 F 3 QP
Field Strength QP
 
 
 
Report No. JSH006110138-001 
Page 31 of 94  
 Side USB Horizontal: 
 
 
0
10
20
30
40
50
60
70
80
Level [dB
/m]
礦
30M
50M
70M
100M
200M
300M
500M
700M
1G
Frequency [Hz]
x
x
x
x 
MES  cs5_H2_red            
MES  cs5_H2_pre            
LIM EN 55022 F 3 QP
Field Strength QP
 
  
Side USB Vertical: 
0
10
20
30
40
50
60
70
80
Level [dB
/m]
礦
30M
50M
70M
100M
200M
300M
500M
700M
1G
Frequency [Hz]
x
x
x
x
x 
MES  cs5_v2_red            
MES  cs5_v2_pre            
LIM EN 55022 F 3 QP
Field Strength QP
 
  
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