Main Features
Frequency Range: 640~690MHz
Working Distance: 50~120 meters
Signal-to-Noise Ratio: >105dB
Frequency Bandwidth: 50MHz
Total Harmonic Distortion: <0.5%
Channel Interval: 300KHz
Modulation Mode: Analog
Max Deviation: ±45KHz
Frequency Response: 40HZ~18KHZ(±2db)
Frequency Stability: ±0.005%
 
Technical parameters of receiver
Oscillation Mode: PLL
Antenna Access: BNC/50Ω
Sensitivity: 12dBuV(80db S/N)
Mid-Frequency: 110MHz.10.7MHz
Sensitivity Adjustment : 12~32dBuV
Spurious Suppression: ≥75db
Power Supply Mode: DC12V,450mA input
Max Output Electrical Level: +10dbv
 
Technical parameters of transmitter
Output Power: 5mW~10mW
Oscillation Mode: PLL
Directivity: Cardioid pickup pattern
Transmitter Type: Dynamic microphone
Frequency Response: 40~18,000HZ(+1db,-3db)
Pipe Body Material: Zinc aluminum alloy
Power Supply: 2*AA 1.5V alkali batteries
Battery Life Time: 6-8 hours