This is where DTG Members can access files from the various DTG Working and Task Groups. If you cannot find what you are looking for please contact [email protected].
The Accessibility Group provides a forum for parties interested in access to broadcast services, producing guidelines for such items as remote control and UI design, audio description requirements, text-to-speech and other technologies to make broadcast services available to all viewers and listeners.
The Displays Group was set up to provide up to date information on changing displays technology for the use of DTG members. It also works with industry to provide the best public information on HD and UHD display requirements. The output of the group comprises papers on current Displays technology as new technologies are introduced, including information on HDMI standards and facilities and AFD switching.
The DTT Platform Steering Group (PSG) is responsible for developing and maintaining the interoperability requirements for broadcast and hybrid receivers, published in the D-Book, based on the platform network requirements. A set of sub-groups provide technical expertise to maintain different parts of the overall specification. The PSG reports to the Technical Oversight Group.
The Platform Test Group (PTG) defines conformance requirements for D-Book not covered by other specialist working groups. This mainly consists of SI/PSI and video, audio and subtitles. The group agrees the test specifications, with implementation and maintenance of test materials overseen by DTG Testing.
Provides an open forum for participants to cooperate on the identification of opportunities to utilise spectrum more efficiently through new applications and spectrum sharing.
A newly-formed workstream, the three main focuses of this group are: best practice connectivity guidelines; a standardised approached to provisioning connectivity for new-build estates; and requirements for a test regime providing independent verification of home-networking equipment.
The In Home Connectivity workstream effectively replaces the following former groups: In Home Media Steering, In Home Network and Home Connectivity.
The group provides information on in-home distribution and consumption of IP-based entertainment services. This includes details of available technologies and considerations for installation. It maintains a profile of DLNA specifications for content distribution.
Interactive Services covers HbbTV and MHEG technology as specified in D-Book. It maintains the profiles of these technologies and agrees the receiver conformance requirements, including test suites and the use of representative applications to give an early indication of features in the planned application rollouts by broadcasters.
This working group effectively replaces the former MHEG and MHEG Transition groups.
The study group’s goals are to summarise current technologies, implementations and platform support for NGA both nationally and internationally, to provide an overview of the situation regarding standards and specification development and to understand current and possible future use cases.
The PMSE (Programme Making and Special Effects) Implementation Group was formed to ensure the current production level of major television, theatre, and special events such as concerts is maintained following 700MHz clearance. The group is responsible for helping to minimise disruption to PMSE activities arising from 700MHz clearance, ensure that spectrum allocation for PMSE audio is viable. If not, investigate and propose new alternatives to Ofcom to ensure PMSE can flourish in the future. The group acts as an independent body to collaborate with the industry to make PMSE front-and-centre during decision making by government and regulators.
A sub-group of the UHD Forum, the Production Systems Group focuses on the architecture and profile of production-side requirements for HD and HD broadcast, including items such as system frame rates, timing and lip sync requirements.
The Receiver Requirements Group defines the minimum requirements for a set of hybrid DTT and IP receiver profiles, based on the D-Book specification. These profiles form the basis of Freeview trademark requirements.
Aim is to propose, discuss, and implement RF conformance testing in the D-Book chapters 9 and 10 to provide assurance to the DTT industry that receivers can operate successfully in today’s and future spectrum environments.
The SI Group defines the profiles of DVB service information used on the platform and fills in the gaps where necessary, such as LCNs.
The role of the Technical Oversight Group is to coordinate and share the work of the various DTG workstreams, acting as a communications path between the various technical groups and Council.
The UK UHD Forum acts as the oversight between the DTG and various international groups covering the development and deployment of UHD video and Next Generation audio services.