编号 :
ST-1004 UHF 4 channels wireless microphone
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- Product Description
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System Specifications.
Frequency range: 640-690MHz
Modulation mode: broadband FM
Adjustable range: 50MHz
Number of channels: 200
Channel interval: 250KHz
Frequency stability: ±0.005% or less
Dynamic range: >105dB
Maximum frequency deviation: ±45KHz
Audio Response: 40Hz-18KHz (±3dB)
Integrated signal-to-noise ratio: >110dB
Comprehensive distortion: ≤ 0.2%
Operating Temperature: -25℃-+40℃
Receiver indicators:
Receiver mode: secondary frequency conversion super-exception
Input power: 5W
Wireless interface: BNC/50Ω
Sensitivity: 12 dBμV (80dBS/N)
Sensitivity adjustment range: 10-32dBμV
Spurious rejection: ≥75dB
Maximum output level: +10 dBV
Transmitter indicators:
Antenna programme: Pendant transmitter using 1/4 wavelength whip antenna, handheld microphone
Built-in antenna
Output power: 20mW
Spurious rejection: -45dB
Power supply: two AA batteries
Usage time: about 8-10 hours
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2nd Floor, Building 21-1, Lane 7, Tanglang Village, Pingshi Industrial Zone, Enping City, Guangdong Province, China
