DVBT2

DVB-T2 is the second generation standard for terrestrial television broadcasting, developed by the DVB Project and standardized by ETSI as a successor to DVB-T. It is designed to deliver higher data throughput and more robust reception, enabling more channels, higher resolution services, and mobile and handheld reception over the same terrestrial spectrum.

Technically, DVB-T2 uses orthogonal frequency-division multiplexing with flexible transmission parameters. It supports multiple FFT sizes, time-frequency interleaving, and a wide range of modulation schemes, including QPSK, 16QAM, 64QAM, and 256QAM. A key feature is the Physical Layer Pipes (PLPs), which allow multiplexed data streams with different modulation and coding within a single broadcast. The forward error correction uses LDPC with BCH outer coding, improving resilience to noise and interference. DVB-T2 also supports single frequency networks (SFN) with coordinated transmission and various guard intervals to mitigate multipath effects.

DVB-T2 offers substantially higher spectral efficiency than DVB-T, with typical gains around 30–50% depending on conditions. It is well suited for HD and Ultra HD services and is robust for mobile and portable reception. The standard also enables efficient multiplexing and flexible service provisioning, allowing broadcasters to optimize for fixed, portable, and mobile viewers.

Deployment and transition vary by region, but many countries have launched DVB-T2 networks or are in migration from DVB-T. DVB-T2 commonly coexists with DVB-T during transitions, but receivers and tuners must support DVB-T2 to receive its signals, as the two standards are not generally backward compatible.