甚高频4频道的麦克风系统

Features VHF Band (220MHz-260MHz) Quartz Lock for drift-free operation.Dual Antenna Receiver Design.Squelch circuitry eliminates background and RF noise bursts.Audio-Mute circuitry provides noiseless ON/OFF switching.Four front panel volume controls.Four Independent XLR Balanced OutputsOne 1/4” phone jack mixed output.Excellent operating range to 50m.Low-Battery indicators.Dimension: 510x300x140mm(L.W.H)Weight: 5.8KgSpecification SystemCarrier Frequency VHF 220-260MHz Modulation Type FM Channel Double channel Frequency stabilization <±30PPM Audio Dynamic range >90dB Max. deviation ±20KHz Total Harmonic Distortion ≤0.5% Frequency response 30Hz-35KHz(±3dB) Image& Spurious Rejection 80dB Signal/Noise Ratio >90 dB Maximum Distance >50m Operating Temperature -10°C—+40°C ReceiverPower supply AC 220V/ 50Hz Power Consumption 3W Sensitivity 12dBµV (30dB S/N ) Audio output level Mix: 0 200mV, Separate: 0 400mV TransmitterOutput power High:30mW; Low:3mW Battery Voltage 9V Battery Life Up to 8 hours PackagingPCS/CTN 4pcs CTN SIZE(L.W.H) 530x320x570mm G.W(Kgs)/CTN 24.6Kg VOL(cbm)/CTN 0.097cbm