Professional Wireless Microphone (SG 922), china Professional Wireless Microphone (SG 922) manufacturer, Professional Wireless Microphone (SG 922) wholesale center

MAIN FUNCTION

Using UHF 800MHz band to fixed frequency avoiding frequency jam and noise interference. Using multilevel high frequency and mid-frequency narrowband filter, so as to dispel any possible interferefering signals. Lock automatically from preset 16 non-interfered channels, maybe adjust 400 free non-interfered channels. There is a volt indicating circuit in the microphone. It can tell you if it is necessary to change the battery. A specially designed circuit switch is on the phone. It is for clearing up waves of miscellaneous signals. All use with UHF PLL circuit, so the frequency is very steady. With audio compressing expanding technology, the machine can lower noises and increase the dynamic range. It can also lower reecho. The receiver use multilevel high frequency enlarger, so it has high sensitivity. It has channel separate outputting and mix output, and it can connected with the sound-adjusting stage and the karaoke enlarger. Special tone key locked identity functions to avoid interference signal from outside open the mute system. There are multiple noise detect circuit, multi circuits, so it has strong anti-jamming speciality. CPU control diversity receiving mode that contributes not only long reception range but eliminates the signal dropouts and unstable reception. Choose excellent chipset and high quality component, so that its timbre will be very good. Longest distance in open: 100m. Ideal distance in open: 60m. Frequency response taibred for vocals, with brightened midrange and brass roll off. Uniform cardioid pick up pattern isolates the main sound source and minimizes background noise. Pneumatic shock-mount system cuts down handing noise.



COMPREHENSIVE PERFORMANCE

Carrier frequency: UHF 700-850MHz

Frequency Stabilization: <+_30ppm

Dynamic Range: More than 90dB

Total Harmonic Distortion: <0.5%

Frequency Response: 40Hz-15KHz +_3dB

Audio Output Level: Separate Type: 0--? ? 00mV

Mix Type: 0-+_200mV



RECEIVER

Power Supply: DC 17V

Consume Power: 4 Water

Signal/Noise Ratio: More than 90dB

Image & Spurious Rejection: More than 80dB

Border Upon Channel Rejection: More than 80dB

Receiving Sensitivity: 10dBuV ( SINAD=30dB )

De-emphasis: 50us



HANDING MICROPHONE

Transmitter Power: 8.5mW

Modulation Type: FM, F3F

Max Deviation: +_25KHz

Spurious Emission: More Than 40dB (With Carrier)

Battery Voltage: 1.5VX2

Continous Using: 6 Hours