Digital terrestrial television

Digital terrestrial television (DTTV or DTT, or DTTB with "broadcasting") is digital television sent by radio waves over the air (terrestrial television). It has replaced analog television in countries that have ended their digital television transition.

DTT standards by country.

There are four main standards for sending this type of television:^[1]

• DVB-T and DVB-T2
• ATSC and ATSC 3.0
• ISDB-T
• DTMB