TV with built-in DVB-T

Television

Feedsee Television : TV with built-in DVB-T : TV set with built-in DVB-T meets European digital television standards

DVB-T, or Digital Video Broadcasting — Terrestrial, is a standard that is used for the broadcast transmission of digital terrestrial television. It was first published by the ETSI (European Telecommunications Standards Institute) in 1997.

In 2006, at a consumer electronics show in Berlin, Chinese companies exhibited new products, including TV sets, mobile phones, set-top boxes, and car media players. Several types of slim CRT TVs and wide screens drew attention from potential purchasers, including a new set-top box with DVD functionality. The television set with built-in DVB-T met European digital TV standards, including flat panel TVs and several CRT types. DVD players and set-top boxes exhibited were also developed based upon European digital TV standards.

Key features of DVB-T

  1. MPEG-2 and MPEG-4 Coding: The DVB-T standard uses MPEG-2 or MPEG-4 for video coding, and MPEG-1 Audio Layer II, AAC, or AC-3 for audio coding. This allows for the efficient compression of video and audio data.
  2. OFDM Modulation: DVB-T uses Orthogonal Frequency-Division Multiplexing (OFDM), which provides robustness against multipath effects such as ghosting and fading, common issues in terrestrial broadcasting. This makes DVB-T particularly well suited for mobile broadcasting and for areas with complex terrain.
  3. Transmission Modes: DVB-T has various transmission modes that can be selected based on the specific needs of a broadcast. These include different guard interval lengths and FFT (Fast Fourier Transform) sizes, which can optimize the signal for different types of coverage areas and reception conditions.
  4. Error Correction: DVB-T uses powerful error correction mechanisms, including Convolutional Coding and Reed-Solomon Coding, which help ensure the integrity of the signal even in challenging reception conditions.
  5. Multiplexing: DVB-T allows for multiple services (channels) to be transmitted on a single frequency. This is achieved through the use of Multiprogram Transport Streams (MPTS).
  6. Support for SD and HD: DVB-T supports both Standard Definition (SD) and High Definition (HD) transmissions. This means broadcasters can choose the appropriate quality level for their content and audience.
  7. Interactivity and Additional Services: DVB-T can support interactive services and additional data broadcasting, such as electronic program guides (EPG), subtitles, and teletext.
  8. Powerful Reception: The DVB-T standard is designed to provide powerful reception that can be received by rooftop aerials, indoor antennas, and even while on the move.

In 2008, the ETSI published an updated version of the standard, DVB-T2, which offers greater capacity and more robust transmission, and is now being adopted by broadcasters around the world.