DVB-T2

Short for Digital Video Broadcasting – Second Generation Terrestrial, DVB-T2 is the world's most advanced digital terrestrial transmission (DTT) system offering higher efficiency, robustness and flexibility. It introduces the latest modulation and coding techniques to enable highly efficient use of valuable terrestrial spectrum for the delivery of audio, video and data services to fixed, portable and mobile devices.

The key new DVB-T2 technologies are:

Rotated Constellations provide significant additional robustness in difficult channels.
Multiple Physical Layer Pipes allow separate adjustment of the robustness of each delivered service within a channel
to meet the required reception conditions (e.g. in-door or roof-top antenna). It also allows transmissions to be tailored
such that a receiver can save power by decoding only a single service rather than the whole multiplex of services.
Alamouti coding, a transmitter diversity method, improves coverage in small-scale single-frequency networks.
Extended interleaving, including bit, cell, time and frequency interleaving.
Future Extension Frames allow the standard to be compatibly enhanced in the future.

These new techniques make DVB-T2 50% more efficient than any other DTT system in the world.