FMUSER Wirless Transmit Video And Audio More Easier !

[email protected] WhatsApp +8618078869184
Language

    What is dvb-t

     

    DVB T:Digital Video Broadcasting Terrestrial

     

    DVB-T is a standard for MPEG-2 digital TV transmission using an open-circuit terrestrial transmission medium. Due to the special environment of terrestrial TV transmission, after years of research and demonstration, experts participating in the DVB organization selected COFDM code division orthogonal frequency division multiplexing The channel modulation technology used, accompanied by a powerful error correction code, achieves a balance between spectrum utilization efficiency and transmission reliability. COFDM signal modulation and coding technology provides 2 sub-carrier numbers, 2K and 8K modes, 3 modulation methods, 4 maintaining intervals, and supports small and large-scale single frequency networks to run SFN. The same digital TV program can be sent through multiple sources. Receive the same frequency of the receiver at the same time to improve the reception effect. The system can support the 8MHZ bandwidth of the current analog TV system, as well as 7MHZ and 6MHZ bandwidths. In order to prevent reflection interference and receive signals from multiple transmitters of the same frequency, the concept of guard interval is introduced: in order to adapt to transmission in different environments, the system supports hierarchical modulation.

     

    DVB-T, it is aimed at terrestrial broadcasting. Let's talk about its related technology in more detail:

     

    FDM: frequency division multi
    OFDM: Orthogonal Frequency Division Multiplexing
    COFDM: Coded orthogonal frequency division multiplexing, inverse fast Fourier transform (IFFT). Good anti-multipath propagation effect and co-frequency interference, suitable for terrestrial broadcasting and co-frequency network broadcasting.
    QAM: Quadrature Amplitude Modulation: Quadrature amplitude modulation, high modulation efficiency, requires high signal-to-noise ratio of the transmission path, suitable for cable television transmission.
    QPSK: Quadrature (Quaternary) Phase Shift Keying keying phase shift modulation, high modulation efficiency, requires low signal-to-noise ratio of the transmission path, suitable for satellite broadcasting.
    VSB: Vestigial sideband vestigial sideband.

     

     

     

     

    List all Question

    Nickname

    Email

    Questions

    Our other product:

    Professional FM Radio Station Equipment Package

     



     

    Hotel IPTV Solution

     


      Enter email  to get a surprise

      fmuser.org

      es.fmuser.org
      it.fmuser.org
      fr.fmuser.org
      de.fmuser.org
      af.fmuser.org ->Afrikaans
      sq.fmuser.org ->Albanian
      ar.fmuser.org ->Arabic
      hy.fmuser.org ->Armenian
      az.fmuser.org ->Azerbaijani
      eu.fmuser.org ->Basque
      be.fmuser.org ->Belarusian
      bg.fmuser.org ->Bulgarian
      ca.fmuser.org ->Catalan
      zh-CN.fmuser.org ->Chinese (Simplified)
      zh-TW.fmuser.org ->Chinese (Traditional)
      hr.fmuser.org ->Croatian
      cs.fmuser.org ->Czech
      da.fmuser.org ->Danish
      nl.fmuser.org ->Dutch
      et.fmuser.org ->Estonian
      tl.fmuser.org ->Filipino
      fi.fmuser.org ->Finnish
      fr.fmuser.org ->French
      gl.fmuser.org ->Galician
      ka.fmuser.org ->Georgian
      de.fmuser.org ->German
      el.fmuser.org ->Greek
      ht.fmuser.org ->Haitian Creole
      iw.fmuser.org ->Hebrew
      hi.fmuser.org ->Hindi
      hu.fmuser.org ->Hungarian
      is.fmuser.org ->Icelandic
      id.fmuser.org ->Indonesian
      ga.fmuser.org ->Irish
      it.fmuser.org ->Italian
      ja.fmuser.org ->Japanese
      ko.fmuser.org ->Korean
      lv.fmuser.org ->Latvian
      lt.fmuser.org ->Lithuanian
      mk.fmuser.org ->Macedonian
      ms.fmuser.org ->Malay
      mt.fmuser.org ->Maltese
      no.fmuser.org ->Norwegian
      fa.fmuser.org ->Persian
      pl.fmuser.org ->Polish
      pt.fmuser.org ->Portuguese
      ro.fmuser.org ->Romanian
      ru.fmuser.org ->Russian
      sr.fmuser.org ->Serbian
      sk.fmuser.org ->Slovak
      sl.fmuser.org ->Slovenian
      es.fmuser.org ->Spanish
      sw.fmuser.org ->Swahili
      sv.fmuser.org ->Swedish
      th.fmuser.org ->Thai
      tr.fmuser.org ->Turkish
      uk.fmuser.org ->Ukrainian
      ur.fmuser.org ->Urdu
      vi.fmuser.org ->Vietnamese
      cy.fmuser.org ->Welsh
      yi.fmuser.org ->Yiddish

       
  •  

    FMUSER Wirless Transmit Video And Audio More Easier !

  • Contact

    Address:
    No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China 510620

    E-mail:
    [email protected]

    Tel / WhatApps:
    +8618078869184

  • Categories

  • Newsletter

    FIRST OR FULL NAME

    E-mail

  • paypal solution  Western UnionBank OF China
    E-mail:[email protected]   WhatsApp:+8618078869184   Skype:sky198710021 Chat with me
    Copyright 2006-2020 Powered By www.fmuser.org

    Contact Us