May Technology Company Limited

May Technology Company Limited

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  • MX840 UHF FM Infrared
  • MX840 UHF FM Infrared
  • MX840 UHF FM Infrared

MX840 UHF FM Infrared

BASIC INFO

    Using UHF , VHF band interference than conventional fewer transmission more reliable ;

    DPLL multichannel digital phase-locked loop frequency synthesizer technology , in the frequency range 50MHZ to 250KHZ channel spacing,

    providing up to 200 channels to choose, easy multiple sets of machines simultaneously, easily avoiding all kinds of interference ;

    advanced automatic frequency technology , even if the frequency of the transmitter and receiver adjustment disorder , just push the button ,

    the transmitter will automatically lock the frequency and adjust consistent , easy to use ;

    upscale LCD screen, so that the receiver and transmitter operating status at a glance ; wireless conference launch system that uses two AA batteries,

    alkaline batteries can be used with high long time ( eight hours of high -power , low- power 12 hours ) .

    5 intussusception can use the same machine .


    / Practical features , simple operation , beautiful, rugged design

    / High sound reproduction , full penetration, so that all participants can hear a clear statement

    / Channel number of groups : A, B, C, D four zones , each zone is 50 frequency 720.00-790.00MHZ

    / Panel Display : LCD display , which can display the RF / AF signal and frequency

    / Each channel has independent volume adjustment External antenna can be extended

    / Has a separate output for each channel

    / Oscillation Mode : PLL frequency synthesizer phase-locked

    / Carrier frequency : UHF 640 ~ 860 ( optional ) MHz

    / Band Width : 25MHz

    / Frequency adjustment: Infrared automatic

    / Output Power :10-30mW adjustable two tranches

    / Harmonic radiation : <-58dbc< span="">

    / Maximum deviation : ± 66KHz

    / Maximum input : 138dB SPL sound pressure

    / Ondo : Senior capacitor microphone core

    / Battery: 2 AA batteries

    / Chassis Specifications : EIA standard 1U models

      Technical parameters

      Frequency range: 740-790MHz


      MC840 UHF FM Infrared


      Modulation mode: FM
      Frequency interval: 50MHz
      Channels: 200
      Channel interval: 250KHz
      Frequency stability: ±0.005%
      Dynamic range: 100dB
      Frequency response: 80Hz-18KHz(±3dB)
      SNR: >105 dB
      Distortion: ≤0.5%
      Working temperature: -10℃ -+40 ℃
      Output power: 30mW~ 3mW
      Inhibition: -60dB
      Power supply: 2 AA batteries
      Use of time:

      >8 hours(30mW),>12hours(3mW)


      Channel and each channel 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



      MC840 UHF FM Infrared

      Channel and each channel 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




      MX830 wireless handheld microphone



      MX830 wireless handheld microphone



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