Spain's TVE has launched a pilot DTT channel broadcasting in UltraHD, employing the latest technologies to keep free-to-air (FTA) TV up-to-date.

The first trial saw the whole production process managed in 4K, from filming and editing to broadcasting and reception.

The project consisted of the compression and broadcast of La Pasión del Prado, an UltraHD documentary co-produced by TVE, Hispasat, Abertis and various other audiovisual companies. The film was compressed under the high efficiency video coding (HEVC) format to 50fps and was broadcast through DTT with the DVB-T2 standard. Reception of the channel didn't require special aerials, but the documentary could only be watched on a 4K TV.

Abertis, SAPEC, Hispasat, Sony, LG, Panasonic, Samsung and Madrid's Universidad Politécnica were directly involved in the codification and broadcasting process.

During the presentation, representatives of each of the companies explained the new standards (HEBC, DVB-T2) and UltraHD broadcasting and reception devices.

TVE says it is proud to continue introducing new technologies in DTT, to improve quality without increasing broadcasting capacity needs.