















LK-220 2-channel wireless microphone system
System indicators
RF range: 610-670MHz (Channel A: 610MHz -639.75MHz, Channel B: 640MHz -669.7MHz)
Available bandwidth: 29MHz per channel
Modulation method: FM frequency modulation
Number of channels: Infrared automatic frequency matching 200 channels
Operating temperature: minus 18 degrees Celsius to 50 degrees Celsius
Silent mode: automatic noise detection
Offset: 45KHz
Dynamic range:>110dB
Audio response: 60Hz-18KHz
Comprehensive signal-to-noise ratio:>105dB
Comprehensive distortion:<0.5%
Receiver specifications:
Receiving method: Secondary frequency conversion superheterodyne
Oscillation mode: PLL phase-locked loop
Intermediate frequency: First intermediate frequency: 110MHz, Second intermediate frequency: 10.7MHz
Antenna interface: TNC socket
Display mode: LCD
Sensitivity: -100dBm (40dB S/N)
Stray suppression:>80dB
Audio output: Unbalanced:+4dB (1.25V)/5K Ω
Balance:+10dB (1.5V)/600 Ω
Supply voltage: DC12V
Power supply current: 450mA
Transmitter specifications: (9500 transmitter)
Oscillation mode: PLL phase-locked loop
Output power: 3dBm-10dBm (LO/HI conversion)
Battery: 2 "1.5V5" batteries
Current:<100mA (HF),<80mA (LF)
Usage time (alkaline battery): about 8 hours at high power
System indicators
RF range: 610-670MHz (Channel A: 610MHz -639.75MHz, Channel B: 640MHz -669.7MHz)
Available bandwidth: 29MHz per channel
Modulation method: FM frequency modulation
Number of channels: Infrared automatic frequency matching 200 channels
Operating temperature: minus 18 degrees Celsius to 50 degrees Celsius
Silent mode: automatic noise detection
Offset: 45KHz
Dynamic range:>110dB
Audio response: 60Hz-18KHz
Comprehensive signal-to-noise ratio:>105dB
Comprehensive distortion:<0.5%
Receiver specifications:
Receiving method: Secondary frequency conversion superheterodyne
Oscillation mode: PLL phase-locked loop
Intermediate frequency: First intermediate frequency: 110MHz, Second intermediate frequency: 10.7MHz
Antenna interface: TNC socket
Display mode: LCD
Sensitivity: -100dBm (40dB S/N)
Stray suppression:>80dB
Audio output: Unbalanced:+4dB (1.25V)/5K Ω
Balance:+10dB (1.5V)/600 Ω
Supply voltage: DC12V
Power supply current: 450mA
Transmitter specifications: (9500 transmitter)
Oscillation mode: PLL phase-locked loop
Output power: 3dBm-10dBm (LO/HI conversion)
Battery: 2 "1.5V5" batteries
Current:<100mA (HF),<80mA (LF)
Usage time (alkaline battery): about 8 hours at high power