UM-940 UHF Four Channels Wireless Microphone

Characteristics:

◆ Using UHF frequency,adjustable frequency about 550MHz to 980MHz 

◆ Using PLL technology,avoided the interference frequency

◆ Integrated CPU bus control system, with digital LCD interface display,

easy to operate, outstanding performance

◆ Adopt multi-stage narrow-band with high frequency and intermediate

frequency selective filtering to eliminate interference signals

◆ Adopt audio Companding Technique, greatly reduce noise and

increase dynamic range

◆ It has the function of suppressing and weakening the back transmis-

sion whistle

◆ Multiple noise monitoring circuit and ID identification code verification

Receiver specification:

◆ Frequency range: 550MHz ～ 980MHz

◆ Modulation mode: Wideband FM

◆ Channel: 4 * 50 channels can be selected with LCD digital display

◆ Channel interval: 300KHz

◆ Frequency stability: ± 0.005%

◆ Dynamic range: 100dB

◆ Maximum deviation: ± 45KHz

◆ Frequency response: 60Hz - 16KHz (± 3dB)

◆ S/R ratio: ＞ 95dB

◆ T.H.D: ≤ 0.5%

◆ Distance: 30-80 meter

◆ Working environment temperature:-10℃~+50℃

Transmitters specification:

◆ Handheld microphone sepcification:

◆ Frequency range:640MHz-690MHz

◆ PLL frequency synthesis technology

◆ 2~100 channels can be selected

◆ Muti-function LCD,display special audio/RF level,battery voltage

and infrared frequency

◆ Frequency stability:±0.002%

◆ Voice pick-up head gain adjustment deviation:±45KHz RF

◆ RF output power: low 5mW-10mW

◆ Higher harmonic: lower than 60dB

◆ 2 AA batteries(included) provide 8 hours of continuous use

Lapel/Headset/Conference Microphone Specification:

◆ Frequency range: 550MHz ～ 980MHz

◆ Modulation mode: Wideband FM

◆ Channel: 4 * 50 channels can be selected with LCD digital display

◆ Channel interval: 300KHz

◆ Frequency stability: ± 0.005%

◆ Dynamic range: 100dB

◆ Maximum deviation: ± 45KHz

◆ Frequency response: 60Hz - 16KHz (± 3dB)

◆ S/R ratio: ＞ 95dB

◆ T.H.D: ≤ 0.5%

◆ Distance: 30-80 meters