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产品名称: SD-890B真分集
SD-890B真分集
SD-890B真分集
SD-U28
SD-U1500真分集
SD-890B真分集
SD-890B真分集
SD-U28
SD-U1500真分集


接收机技术参数:
 
   频率范围:610-850MHz
 
   振荡模式:双相位锁定频率合成(PLL)
 
   调节方式:FM
 
   最大频偏:±50KHz
 
   灵敏度:18dBuV(可调)
 
   信噪比:≥89dB
 
   音频响应:60Hz-15KHz(±3dB)
 
   音频输出:0-300mV/600Ω
 
   平衡输出:0-300mV/600Ω
 
   动态范围:≥105dB
 
 
 
   显示:液晶显示频道数
   工作电压:DC 14V
 
   工作电流 800mA
 
   工作温度:-10℃至+40℃
 
特点:
 
1、二次变频技术(选择性好)
 
2、双锁相环频率合成技术(频率稳定度更高)
 
3.200个频道可供选择(远离干扰频道)
 
4、红外对频技术(选频更方便)
 
5、二重静噪控制
 
6、接收灵敏度在一定范围内连续可调
 
7、32.768KHz导频技术
 
发射器:手持式 会议式 领夹式发射器
发射天线:内置微带,外置天线
 
频道数目:取决于接收机
 
发射器结构:金属管 塑料管
 
发射器指示:电源开关指示、低压指示、对频确认指示
 
发射器操作:电源控制
 

Receiver technical parameters:
Frequency range: 730-850MHz
Oscillation mode: dual phase locked frequency synthesis (PLL)
Mode of adjustment: FM
Maximum frequency deviation: + 50KHz
Sensitivity: 18dBuV (adjustable)
The signal-to-noise ratio is not less than 89dB
Audio response: 60Hz-15KHz (+ 3dB)
Audio output: 0-300mV/600
Balanced output: 0-300mV/600
Dynamic range: 105dB
Display: LCD channel number
Operating voltage: DC 14V
Operating current 800mA
Operating temperature: -10 DEG C to +40
Characteristic:
1, two frequency conversion technology (good selectivity)
2 、 dual phase locked loop frequency synthesis technology (higher frequency stability)
3.200 channels are available (away from interference channels)
4, infrared frequency counter technology (frequency selection is more convenient)
5, dual squelch control
6. The sensitivity of the receiver is continuously adjustable in a certain range
7, 32.768KHz pilot technology
Launcher: hand held conference clip type launcher
Transmitting antenna: built in microstrip, external antenna
Channel number: depends on the receiver
Transmitter structure: metal tube, plastic pipe
Transmitter indication: power switch indication, low voltage indication, and frequency acknowledgement indication
Emitter operation: power control