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型号/Model:ST-7288 系统规格 System Specifications 接收器/Receiver 载波频率范围/Carrier Frequency range:170-270MHz 频率振荡模式/Frequency Oscillation Mode:Crystal 频率响应/Frequency Responese:50Hz-18KHz 有效使用距离/Working distance:200feet 载波稳定度/Carrier Wave stability:±5PPm<10KHz 假象干扰比/Image Interference Ratio:>80dB 信号噪声比/S/N Ratio:>105dB(1KHz-A) 灵敏度/Sensitivity:-105dB 总失真率/T.H.D.(1KHz):<0.5% @1KHz 音频输出阻抗/AF Output Impedance:2.2kΩ 音频输出准位/Audio Output Level:-12dB 静音方式/Mute:Mute &locked loop circuit 功能显示方式/Display:LED 电源供应/Operations Voltage:110/220V AC 0.5A 输出插头型式/Output Connecter:1XLR Balanced Socket Unbalance TRs ⊙6.3mm Socket VHF 手持发射机 VHF Handheld Transmitter 载波频率范围/Carrier Frequency range:170-270MHz 动态范围/Dynamic Range:>110dB 载波误差/Stability:±0.005% 调变偏移度/Frequency Deviation:±45KHz 副谐波/Spurious Emissions:<-60dBc 射频输出功率/Radio Frequency Output Power:10mW 电源消耗/Power Consumed:≤ 电源供应/Battery:AA 1.5v*2 功能显示方式/Display:LED 单体/Element:Dyanmic Microphone VHF 腰挂式发射器 VHF Body-pack Transmitter 载波频率范围/Carrier Frequency range:170-270MHz 频率振荡模式/Frequency Oscillation Mode:PLL synthesizd Controll RF输出/RF Outputs:10mV 灵敏度/Sensitivity:-48dB±3dB(at 1KHz) 功能显示/Display:LED 假象干扰比/Image Interference Ratio:<-50dBC 音频响应/Audio Frequency Responese:40Hz-18KHz 电池型式/Battery:AA 1.5v*2 头戴式麦克风 Condenser Stage Headset Microphone 频率响应/Frequency Responese:30-18.000Hz 指向性/Polar pattern:Cardioids 输出接头/Output connector:4P&3P Mini XLR 灵敏度/Sensitivity:-48dB±3dB(at 1KHz) 输出阻抗/Impedance:680Ω±30% 最大承受音压/Max.SPL:for 1% THD 130dB MAX 领夹麦克风 Condenser Lavalier Microphone 频率响应/Frequency Responese:100-15.000Hz 指向性/Polar pattern:Cardioids 灵敏度/Sensitivity:-48dB±3dB(at 1KHz) 输出阻抗/Impedance:680Ω±30% 最大承受音压/Max.SPL:for 1% THD 130dB MAX