Frequency Response
4. WIRELESS MICROPHONE SYSTEM
5dB
10dB
15dB
20dB
0
330
30
0
270
240
210
180
15
0
120
90
60
30
Unidirectional
WIRELESS RECEIVER
CH A
CH B
CH.A
CH.B
4.1 Handhold microphone (Dynamic)
4.2 Bodypack microphone (condenser)
4.3 Non-diversity receiver
Carrier Frequency range
Receiving mode
Frequency Stability
Dynamic range
Frequency modulation
Frequency response
RF Sensitivity
T.H.D
S/N
UHF 760-900MHz
Quatz locked
0.005% / 25
>100dB at 15KHz
32.768KHz
50Hz-15KHz 3dB
3uV ( 20dB SINAD)
<0.6% at -70dB
>90dB
Receiver specification:
+20
+10
0
-10
-20
-30
20
50
100 200
500
1000
2000
5000
10000 20000
Frequency Hz
0
180
Polarity pattern: Unidirectional
Sensitivity: -50dB
4dB
Impedance: <680ohm
Note: In order to make sure the good
operation of unit , the equipment
should be placed in wide space.
1m
1m
40
-60
m
RECEIVER
1m
ON
O
N
dBV/Pa
-50dB
-60dB
-70dB
-80dB
20
50
100
200
500
1k
2k
5k
10k
20k
0.100
0.316
1.000
3.160
mV/Pa
Frequency Hz
Frequency Response
8
5
3.4
Wireless receiver section
(15). LIGHT switch
This switch turns the light on or off.
(16). LIGHT
To illuminate the light, pull it out and turn on the light
switch. And the lighting is movable and can be turned.
(13). Volume control
This wireless receiver provides two channels: CHA and CHB.
And each channel is equipped with volume control for adjusting
the level.
For further details, please refer to the following chapter of WIRELESS MICROPHONE.
(14). SG LED dispaly
The SG LED lights up when corresponding channel received the signal.
(13)
(14)
3.5 Control section
(15)
(16)
0
10
CH A
0
10
SG
SG
CH B
WIRELESS RECEIVER
PULL
LIGHT
ON
(9). STOP button
To stop program, press this button.
(10). PLAY/PAUSE button
To play and pause of track alternately, press this button.
(11). Disc tray
(12). LCD
Displays important operation messages, for example: No disc: no disc inserted, or disc unreadable.1~ xx: indi-
cates the track number, and track number that is playing will flash on the LCD.
(4). VOL-DOWN button
Decrease the volume.
(5). PROG. button
Program track number.
(6). FF button ( )
Go to the next track of audio CD/search forward.
(7). FR button ( )
Previous track of audio CD/ search back.
(8). REPEAT button
Repeat track. It provides two modes: repeat all and repeat one track.
(1). POWER button
Turns power on/off the CD/MP3 player.
(3). VOL-UP button
Increase the volume.
(2). EJECT button
To eject the audio CD, press this button.
3.3 CD(MP3)
player section
STOP
REPEAT
PROG.
VOL-UP
POWER
PLAY/PAUSE
FF
VOL-DOWN EJECT
Professional CD + MP3 Player
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
FR
Содержание PA system
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