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MC820 UHF 1 for 4 wireless conference microphones

产品编号:1065213110647410688

零售价

¥ 0

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UHF ultra-high frequency band is adopted, which has less interference than traditional VHF frequency band and more reliable transmission;
产品分类: UHF wireless microphone

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  • 产品详情
  • UHF band makes fewer interference compared with the conventional VHF band and more reliable transmission;
    DPLL multi-channel and frequency synthesis technology provides up to 200 channel selection within interval of 250KHZ within the range of 50MHZ and satisfies simultaneous operation of multiple sets and keep away interference;
    The advanced frequency pairing technology automatically locks and adjusts the frequency by only one press if the frequencies of the transmitter and the receiver are not paired and operation is convenient;
    High-end LCD makes working status of the receiver and the transmitter clear;
    The wireless conference transmission system is powered by 2 pieces of AA batteries and hi-alkali battery lasts longer.

    The conference desktop, handheld, clip and head-mounting are optional.

     
    Specifications and parameters 
    System indexes
    Range of frequency: 740-790MHz
    Modulating mode: FM
    Range of adjustment: 50MHz
    Channel number: 200
    Channel interval: 250KHz
    Frequency stability: ±0.005%
    Dynamic range: 100dB
    Maximum frequency deviation
    Audio response: 80Hz-18KHz(±3dB)
    Total SNR: >105 dB
    Total distortion: ≤0.5%
    Operating temperature: -10℃ -+40 ℃
     
     
     
     
     
     
    Receiver indexes
    Receiver mode: secondary conversion super heterodyne
    Intermediate frequency: first frequency: 100MHz; second 10.7MHz
    Wireless interface: BNC/50Ω
    Sensitivity: 12dBμV (80DbS/N)
    Range of sensitivity: 12-32 dBμV
    Spurious suppression: >75dB
    Maximum output level: +10dBV

    Transmitter index:
    Wireless mode: wearing transmitter 1/4 wavelength whip antenna, handheld microphone built-in helix antenna
    Output power: high power 30mW; low power 3mW
    Spurious suppression: -60dB
    Power supply: 2 pieces of AA batteries
    Duration: more than 8 hours at 30mW; more than 12 hours at 3mW

    Up to 5 sets (20 conference transmitter) modulating methods under the same space and the same frequency band:
    Set 1: 1, 55, 121 and 174
    Set 2: 4, 58, 130 and 183
    Set 3:  9, 63, 137, 190
    Set 4: 16, 70, 142, 195
    Set 5: 25, 79, 145, 198

    Intermodulation interference may be caused if the frequency is not set properly.

    Telecommunication channels and frequency range:
    CHANNAL A
    CHANNAL: 0-49 FREQUENCY: 740.000MHZ-752.250MHZ
    CHANNAL B
    CHANNAL: 50-99 FREQUENCY: 752.500MHZ-764.750MHZ
    CHANNAL C
    CHANNAL: 100-149 FREQUENCY: 765.000MHZ-777.250MHZ
    CHANNAL D
    CHANNAL: 150-199 FREQUENCY: 777.500MHZ-789.750MHZ

    Frequency points 640-690MHZ, 740-790MHz and 807-857MHZ. Each channel is composed of one standalone module and four modules comprise 4 standalone channels to make up 600 frequency points. 

     
    MC820 receiver size chart
     

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