MS18 True diversity one by two hands wireless microphone
Core system metrics :
RF specifications: Operating frequency band 645.25---690.00MHz
Available bandwidth 50MHz (20KHz per channel)
Modulation method FM radio
Frequency stability Within ±0.005
Number of channels 200 adjustable channels
Channel spacing 250KHz
Frequency matching method IR auto-frequency & Manual Tuning Dual Mode
Offset degree ±45KHz
Audio Characteristics: Noise suppression mode Automatic noise detection
Audio response Wide frequency range from 50Hz to 18KHz
Composite Signal-to-Noise Ratio ≥105dB
Total Harmonic Distortion ≤0.5%
Dynamic range ≥100dB
System Characteristics: Noise Suppression System Carrier & Noise detection combined static noise suppression
Working temperature -10°C to +50°C
Receiver specifications:
Transmitter circuit: Receiving method Dual superheterodyne, dual-tuned high selectivity reception
Oscillation mode PLL Phase-Locked Loop
Medium-frequency frequency IF1: 110MHz, IF2: 10.7MHz
Sensitivity 12dBµV (80dB S/N)
Sensitivity adjustment range 12-32dBµV (adjustable, suitable for various environments)
Noise suppression ≥80dB
Interface and Display: Antenna interface TNC/50Ω
Display mode 2.95-inch 192x64 dot matrix screen
Audio output Unbalanced: ±4 dB (1.25V) / 5KΩ
Balance: ±10dB (1.5V) / 600Ω
Power supply voltage DC12V
Power supply current ±400mA
Transmitter specifications:
Launch circuit: Oscillation mode PLL Phase-Locked Loop
Output power 12 dBm (approximately 16 mW)
Noise suppression -60dB
Power Supply and Battery Life: Current <130mA(HF)
Battery 2×AA (Type 5) alkaline batteries
Battery life 6 hours (with alkaline batteries, high power mode)
Others: Display screen 12-inch TFT screen
