microphones,wireless microphone,UHF vocal,long-distance,640-690MHz, Manufacturer and Supplier - China(CN)
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UHF Eight Channel Professional Vocal Wireless conference Microphone
1.2*3 marshalling frequency are built-in, one button to adjust. One same frequency range available two receivers use in the same time.
2.Infrared ray synchronization function, one button to connect and lock frequency automatically.
3.Volume of eight channels is independent to adjust. Provide 8+1 audio output, each audio volume is independently output.
4.Provide multiple transmitters to choose, conference, handheld and collar microphones can be mixed to use.
5.Backlit LCD display show working station of RF, AF, frequency and channels.
6.Adopt same working frequency for eight channels, transmitters can interchange at any time, this greatly enhance operation flexibility.
7.Adopt newest UHF wireless audio transmit chip module IC which has excellent RF and AF performance, provide professional sound experience to customers. Squelch control and digital pilot technology, when transmitter turn off, pilot control will make AF signal to be mute to avoid noise, receiver’s channels also will be mute, this effectively cut off interference signal.
Modulation Mode: FM stereo modulation
Frequency interval: 50MHz
Channel interval: 300KHz
Frequency Range: UHF610-670MHz(depend on where you located)
Working Distance: Ideal condition is about 80 meters, complex environment is about 45 meters.
Working temperature: -10~40℃
Power supply: DC12V 1000mA
Frequency response: 80Hz-18KHz(±3dB)
S/N ratio:>105 dB
T.H.D distortion: ?0.5%
Wireless interface: BNC/50Ω
Sensitivity range: 12-32 dBμV
Max output level: +10dBV
Receiver specifications: Pattern: super heterodyne twice frequency conversion
IF-FRE： First110MHz, second10.7MHz
Wireless program: lapel uses 1/4 wavelength whip antenna, handheld uses built-in spiral antenna
Output power: High power15mW; Low power8mW
Stray radiation: -60dB
Power supply: 2*AA batteries
Duration time: 13 hours
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