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		MODEL: VHF-338 Technical Specifications: Carrier Frequency:VHF 210-270MHz Frequency Stability: ±0.005% Dynamic Range:>80dB Total Harmonic Distortion:<0.5% Frequency Response:60~15KHz±3dB Receiving Sensitivity: ≤5dBuV (S/N≥20dB) S/N Ratio:>80dB Channel Disturbing Ratio:>80dB Feint Disturbing Ratio:>80dB Audio Frequency Output:Independence:0~±400mV Mixed:0~±300mV Receive Channel:2 Channel Receive Power Supply:AC200V 50~60Hz Validate The Function Distance:(80-100)m Depending on the circumstance.