This series of products for VHF frequency lock type four wireless channel meeting microphone, has high sensitivity, wide frequency response, good directivity, stable performance, simple operation, etc. Sell well both at home and abroad, and are suitable for all kinds of meeting space. All metal material standard chassis, metal panel configuration 4 channel receiver, host to provide balanced audio output socket respectively, and the mixed unbalanced output, comprehensive to meet the needs of all kinds of connections. Receiver parameters Oscillation mode: quartz crystal oscillator Frequency range: VHF 200 MHZ to 270 MHZ Frequency stability: plus or minus 0.001% Maximum frequency deviation: plus or minus 50 KHZ Modulation mode: FM Signal to noise ratio: > 105 db Distortion: < 0.5% @ 1 KHZ Sensitivity: 1.2 / UV @ S/N = 12 db Power supply: DC: 12 v ~ 17 v Audio output: independent 0 ~ 400 mv mixed 0 ~ 400 mv The emitter parameters Power supply: DC 9 v Receiver power consumption: 30 ma Carrier frequency, VHF 200 MHZ to 270 MHZ Frequency stability: + 25 KHZ Signal to noise ratio: > 105 db Adjacent frequency interference than: > 80 db Dynamic range: 100 db or higher Type: capacitive Polarity modes: single directivity Frequency response: 40 hz ~ 20 KHZ The receiver sensitivity: - 47 + / - 3 db @ 1 KHZ
