7
5)
Mic volume up -/down key
6)
MIC ON/OFF key
7)
Chairman Priority
8)
LCD
9)
Microphone power switch
1.3.5 Parameter of wireless meeting system microphone unit
Items
Parameter
Audio channel
Transmission method
UHF Wireless (one way)
Audio channel
5 ( 1 chairman, 4 delegate)
Carrier frequency band
610.00MHz~659.75MHz
740.00MHz ~ 790.00MHz
Modulation method
FM
Maximum modulation
60KHz
Radiant power
≤+9dBm
Frequency deviation
＜
0.002
Frequency response
50Hz-15KHz
S/N Ratio
＞
85dB
T.H.D.
＜
0.8%
Data control
channel
Transmission method
Wireless (two-way)
Data channel
16
Frequency Range
422.4MHz ~ 438.4MHz
Modulation method
FSK
Receiving sensitivity
-100dBM
Transmission consumption
≤6dBm
Communication rate
100KBPS
Frequency deviation
＜
0.002
System
Power supply
DC3.7~4.5V
Signal covering range
Radius 60 meters
Consumption Rating
Standby: ≤360mW
Speaking: ≤630mW
Operating temperature range -10-40 degree
Dimensions
170×58×120mm
N.W
0.7kg
