系统参数System Specification
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调制方式Modulation Mode
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宽带调频(FM)
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频率范围Frequency Range
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610-670MHZ
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信道数目Channel number
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200个预置频道,通道间隔250KHZ(200 preset channels, update nterval 250KHz )
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频率稳定度Frequency stability
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±0.005%
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动态范围Dynamic range
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100dB
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最大偏差Maximum deviation
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±45KHZ
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音频频率响应Audio frequency response
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80HZ-18KHZ(±3dB)
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综合信噪比Signal-to-noise ratio
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105dB
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相邻信道抑制Distortion
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≤0.3%
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邻频干扰比Adjacent channel inhibition
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≥70dB
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工作距离Working distance
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about 60 meter
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接收机指标
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接收方式Receive mode
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二次变频超外差
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振荡方式Oscillation way
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PLL Synthesized (PLL 锁相环)
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天线输入Antenna input
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BNC socket/(50 Ω)
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中频Middle Frequence
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110 MHz、 10.7MHZ
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灵敏度Sensitivity
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12 dBuV (80dBS/N)
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杂散抑制Spurious Signals
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≥75dB
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最大输出电平Maximum output level
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+10dBV
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供电Power supply
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12V DC,1.25A
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工作环境温度Work environment temperature
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-10℃+40℃
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发射器指标Transmitters Specification
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天线 Antenna
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手持麦克风内置螺旋天线,腰挂发射器采用1/4波长鞭状天线Hand-held microphone built-in spiral antenna,body pack by a quarter wave transmitter prehensile bullwhip shapped antenna
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频输出功率Rf output power
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高功率30mW, 低功率: 3mW( High power 30mW,low power 30mW)
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拾音头Sound pickup head
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动圈式 Dynamic
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杂散抑制Spurious Signals
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-60dB
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发射电流
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≥130mA
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供电Power Supply
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两节5号AA碱性电池 1.5*2AA Two AA alkaline batteries no. 5
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工作寿命Operating time
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30mW时大于10个小时,3mW时大于15个小时
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