Digital terrestrial TV is watched using an outdoor or indoor antenna and is one of the simplest technologies, but the amount of viewable programs is minimal. It depends on the distance of the TV tower with the program transmitter and how the antenna is oriented. In many European countries, including Lithuania, digital terrestrial TV broadcasting is defined by the DVB-T standard. TV set-top box connected to the TV. The set-top box is a special receiver that receives the signal and converts it into a visual and audio signal that can be understood by older TVs. which lead to a significant loss of popularity among the Lithuanian population. Main disadvantages:
Digital cable TV is a television that can be watched via cable television. These digital TV broadcasts are an additional paid service for many Lithuanian cable operators. In many European countries, including Lithuania, digital cable TV broadcasting is defined by the DVB-C standard. This type of TV is only available where cable TV networks are routed. In order to watch digital cable TV at home, you need a TV with a digital tuner or TV set-top box. The set-top box is a special receiver that receives the signal and converts it into a visual and audio signal that can be understood by older TVs. to buy digital cable TV, but the disadvantages are far greater:
Convenient and relatively cheap is digital satellite TV. Geographic distance is also less important, as TV satellites usually cover a whole group of countries or a continent at once. In addition, with a more serious set-up of satellite TV, it is possible to see several hundred or even thousands of different TV programs. These are almost all the advantages of this television, which have been serious advantages in the past. Digital satellite TV has been in its infancy for the third decade.
The DVB-S standard, which defines satellite TV broadcasting, has been in use for a longer period of time, and the upgraded DVB-S2 offers video compression innovations. purchase for an additional one-time or subscription fee.At first glance, digital satellite TV looks attractive, but the disadvantages are obvious:
IPTV is a telecommunications system for transmitting and receiving television signals over packet networks using the Internet Protocol (IP).
In an IPTV system, digital television services reach the user through packet networks using the IP protocol. These networks are preferably broadband (eg: ISDN, WiMAX, LAN). IPTV programs can be watched on a PC screen as well as on a standard TV tuner. In the latter case, a signal converter is required, which allows the receiver to adapt the incoming signal to the TV.
IPTV is usually provided as part of a package of services (eg IP telephony and Internet). Collectively, all these services are referred to as "Triple play", which means that there are three types of information exchange: voice, video and data.
Digital TV is gaining popularity over IP networks in Lithuania, as this technology, unlike the ones described above, no longer has any noticeable disadvantages and can be enjoyed a number of advantages:
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