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系統(tǒng)參數(shù)System Specification
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調(diào)制方式Modulation Mode
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寬帶調(diào)頻（FM）
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頻率范圍Frequency Range
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610-670MHZ
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信道數(shù)目Channel number
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200個(gè)預(yù)置頻道，通道間隔250KHZ（200 preset channels, update nterval 250KHz ）
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頻率穩(wěn)定度Frequency stability
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±0.005%
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動(dòng)態(tài)范圍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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音頻頻率響應(yīng)Audio frequency response
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80HZ-18KHZ(±3dB)
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綜合信噪比Signal-to-noise ratio
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105dB
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相鄰信道抑制Distortion
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≤0.3%
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鄰頻干擾比Adjacent channel inhibition
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≥70dB
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工作距離Working distance
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about 60 meter
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接收機(jī)指標(biāo)
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接收方式Receive mode
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二次變頻超外差
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振蕩方式Oscillation way
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PLL Synthesized （PLL 鎖相環(huán)）
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天線輸入Antenna input
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BNC socket/(50 Ω)
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中頻Middle Frequence
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110 MHz、 10.7MHZ
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靈敏度Sensitivity
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12 dBuV (80dBS/N)
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雜散抑制Spurious Signals
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≥75dB
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最大輸出電平Maximum output level
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+10dBV
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供電Power supply
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12V DC，1.25A
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工作環(huán)境溫度Work environment temperature
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-10℃+40℃
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發(fā)射器指標(biāo)Transmitters Specification
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天線 Antenna
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手持麥克風(fēng)內(nèi)置螺旋天線，腰掛發(fā)射器采用1/4波長(zhǎng)鞭狀天線Hand-held microphone built-in spiral antenna,body pack by a quarter wave transmitter prehensile bullwhip shapped antenna
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頻輸出功率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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拾音頭Sound pickup head
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動(dòng)圈式 Dynamic
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雜散抑制Spurious Signals
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-60dB
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發(fā)射電流
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≥130mA
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供電Power Supply
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兩節(jié)5號(hào)AA堿性電池 1.5*2AA Two AA alkaline batteries no. 5
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工作壽命Operating time
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30mW時(shí)大于10個(gè)小時(shí)，3mW時(shí)大于15個(gè)小時(shí)
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