KS-400H UHF wireless microphone with four meeting microphones
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China LAIKESI AUDIO Electronic Factory
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KS-400H
Advanced automatic technology of frequency, even if the tune the frequency of the transmitter and receiver in confusion, and slightly press the transmitter Automatically after locking frequency and adjust the consistent, easy to use; High-grade LCD screen, make the receiver and transmitter working condition be clear at a glance; Wireless conference transmission system, USES two AA batteries, high alkaline batteries can be used for a long time (high power 8 hours, Low power 12 hours).If use rechargeable batteries, the use of time will fall.
In the same space, at the same time using the same frequency as many as 20 meeting type transmitters share transfer method: A set of: 1, 55, 121, 174 Two groups: 4, 58, 130, 130 Three groups: 9, 63, 137, 63 Four groups: 16, 70, 142, 70 Five groups: 25, 79, 145, 79 If frequency is set incorrectly can cause intermodulation interference.
Each channel channel and frequency range: CHANNAL A CHANNAL: 49 FREQUENCY: 0-740.000 MHZ to 752.250 MHZ CHANNAL B CHANNAL: 50-99 FREQUENCY: 752.500 MHZ to 764.750 MHZ CHANNAL C FREQUENCY CHANNAL: 100-100:765.000 MHZ to 777.250 MHZ CHANNAL D FREQUENCY CHANNAL: 150-150:777.500 MHZ to 789.750 MHZ The System specifications Frequency range: 740-790 MHZ Modulation mode: FM Frequency interval: 50 MHZ Channels: 200 The Channel interval: 250 KHZ Frequency stability: plus or minus 0.005% The Dynamic range: 100 db Max frequency deviation Frequency response: 80 hz - 18 KHZ (plus or minus 3 db) SNR: > 105 dB Distortion: 0.5% or less Working temperature: - 10 ℃ to + 40 ℃ Receiver specifications Pattern: super heterodyne twice frequency conversion IF - MAC: First: 110 MHz, the second 10.7 MHz Wireless interface: BNC / 50 Ω Sensitivity: 12 db mu V (80 DBS/N) Sensitivity range: 12-32 dB mu V Stray rejection: > 75 db Max output level: + 10 DBV Transmitter specifications: Radio programs: wear emitter using 1/4 wave whip antenna, holding a microphone built-in spiral antenna Wireless pattern: The Output power, High power30mW;Low power of 3 mw Stray rejection: 60 db Power supply: 2 AA batteries Over 8 hours in Duration time: 30 mw > 8 hours (30 mw), 3 mw is more than 12 hours > 12 hours (3 mw)