Datacasting often provides a variety of information such as news, weather forecasting, traffic reporting, stock market updates, and other data that may or may not relate to the broadcast programs.
[1][2] The ATSC, DVB, and ISDB standards support broadband datacasting via Digital Terrestrial Television (DTT), although the specifics of implementation are not always defined.
The now-defunct MovieBeam service used dNTSC technology by Dotcast to transmit 720p HDTV movies in the lower vestigial sideband of NTSC analog TV.
It supplements or replaces the limited electronic program guide sent by each TV station, which is already mandated by the U.S. Federal Communications Commission (FCC).
The collection included: More recently a near-Australia wide broadcast of a datacasting channel called MyTalk commenced on April 13, 2007.
The stream consisted of text applicable to the viewer's location and a 4:3 video window of terrestrial TV from the relevant Southern Cross/Southern Cross Ten station.
Toosheh, or "Knapsack" in Persian is a datacasting technology that uses existing set-top-boxes for reception of files without requiring an Internet connection.
Significantly, the model also includes access to a GPRS network that allows the receiving sites to communicate back to the Mindset central server.
The model also includes a distributed deployment of the Moodle LMS, allowing users to take assessments and have the results transmitted via GPRS to the Mindset server for accreditation.
Outernet's goal is to provide free access to content from the web through geostationary and Low Earth orbit satellites, made available effectively to all parts of the world.
[6] Content received can be stored automatically on the set-top box's built in hard drive, served to users over Wi-Fi or Ethernet.
[7] In extreme cases a receiver can be physically disconnected from the Internet, thus providing a system much more secure than Internet-based anonymity networks such as Tor.
No build-out and maintenance of costly physical infrastructure (e.g. fiber optic cables) is required for the end-user, only a satellite dish or TV antenna is necessary, allowing services such as educational materials to be delivered to underserved communities.