USA success in ATSC 4K transmission

Technicolor has successfully trialled over-the-air 4K Ultra-HDTV transmissions using the USA’s proposed ATSC 3.0 specification. Technicolor used antenna towers owned by Sinclair Broadcast to carry out the tests.

Technically the trial was the first-ever in the world to incorporate Scalable HEVC (SHVC) video coding, MPEG-H, audio and MPEG’s MMT A/V transport standard. The test was carried out over Sinclair’s Baltimore-based experimental facility.  Moreover, the technology allows reception over ‘ordinary’ aerials, as well as by mobile and table-users on-the-move.

“Technicolor has created an integrated platform, not just a single component such as audio or video, which enables us to do real-world deployments and testing of this exciting next generation ATSC 3.0 technology,” said Vince Pizzica, SEVP/Corporate Development and Technology for Technicolor. “Our test-bed has been designed around open standards, with robustness in mind to ensure delivery of high quality programming to all devices. Transmitting over-the-air for a speed of 70mph in a real-world scenario demonstrates our ‘systems approach’ to solving market and customer issues.”

The technology is potentially a major step forward for digital broadcasters. Currently, digital broadcasts are of the ‘all or nothing’ basis, and where there’s a challenging transmission or reception, and the signal fails then the screen does dark. The ATSC 3.0 specification calls for “gradual degradation” where – it is claimed – a higher video quality can be expected, although not at 4K, and in most cases audio can be maintained even though the video signal is challenged.

You must be logged in to post a comment Login