Wireless Conference Microphone System 1 to 4

Technical parameters:
●High-grade LCD screen, make the working status of the receiver and transmitter clear at a glance.
● UHF ultra-high frequency band is adopted, which has less interference and more reliable transmission than traditional VHF frequency band.
● DPLL digital phase-locked loop multi-channel frequency synthesis technology, within 100MHz frequency bandwidth, with 270KHz channel interval, provides up to 391 channel options, which is convenient for multiple sets of machines to use at the same time, and easily avoids all kinds of interference.
●Advanced automatic frequency matching technology , even if the frequencies of the transmitter and the receiver are chaotic, you only need to press a button, the transmitter will automatically track the frequency of the receiver and adjust it to the same frequency, which is convenient to use.
●Ad hoc receiving sensitivity adjustment function, the sensitivity can be adjusted according to needs to improve the anti-interference ability or increase the receiving distance.
●Wireless transmission system, using a 18650 lithium battery, cycle charging, environmentally friendly and durable, with a charging cable, can work continuously for 6-7 hours for a long time.
●Using distance : Open environment: 80-100 meters Complex environment: 50-80 meters
●This machine has extremely high frequency stability and can be used by multiple stacking machines . It is the first choice for high-end conferences and speeches.

Description

  1. System technical parameters indicators:
    Frequency range: 640-740MHz
    Modulation: Broadband FM
    Adjustable range: 100 MHz
    Number of channels: 400
    Channel spacing: 270KHZ
    Receiving method: CPU control automatic selection
    Frequency stability: within ± 0.005%
    Dynamic Range: 100 dB
    Maximum frequency deviation: ± 50 KHZ
    Audio Response: 40Hz-18 KHZ (±3 dB) with low frequency attenuation filter circuit
    Comprehensive signal-to-noise ratio: >105dB
    Comprehensive distortion: ≤ 0.5%
    Operating temperature: -10℃ to 40℃

2. Transmitter indicators :
Antenna program: waist-mounted transmitter adopts 1/4 wavelength whip antenna; handheld microphone has built-in helical antenna
Output power: high power 30mW; low power 3mW
Spurious Suppression: -60dB
Power supply: Using a 18650 lithium battery, cycle charging, environmentally friendly and durable, with a charging cable, it can work continuously for 6-7 hours for a long time.
Use time: more than 10 hours at 30mW, more than 15 hours at 3mW

3. Receiver indicators :
Receiver mode: double frequency conversion super heterodyne
IF Frequencies: 1st IF: 110 MHz, 2nd IF 10.7 MHz
Antenna interface: BNC/50Ω
Sensitivity: 12 dBμV (80dBS/N)
Sensitivity adjustment range: 12-32 dBμV
Spurious Suppression: ≥ 75dB
Maximum output level: +10 dBV
Power supply: 800mA, 12VDC
Output socket: XLR balanced socket / 6.3φ unbalanced socket
Size (m/m) (L*H*D): 480*44*180
Weight (kg): 3.2

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