What are digital TV receivers?
Digital TV receivers or digital converter boxes are separate components that allow analog TVs to receive digital signals. Since June 12, 2009, most television signals in the United States have stopped broadcasting on an analog signal and is now only broadcast in digital. Analog TVs without digital ability would not be able to receive a digital signal and would therefore be unusable without a digital TV receiver.
Digital TV receivers convert digital signals to an analog signal, allowing analog TV to continue receiving digital TV broadcasts. Digital converter boxes can be purchased from home electronics retailers and are relatively easy to install and used. The antenna is connected to the converter and the box is connected to the TV. Depending on the converter and television box, there may be some television functions such as channel change directly.
Consumers who have signed up for cable or satellite TV services do not need external digital TV receivers because their cable or satellite service already allows their TVs to get a digital signal. Only those users who received free analog TV signals "Over the Air" need a digital TV receiver. After 1 March 2007, all TVs sold in the United States are obliged to have a built -in digital receiver. Owners of these TV files should be able to receive digital broadcasts without the use of external digital TV receivers.
It is important to realize that high -resolution televisions (HDTV) are not required to obtain signals of Air digital TV. High -resolution television is a form of digital television broadcasting that offers greater cleanliness and sound of image and requires HDTV to receive a signal withhigh resolution. Many consumers give the excellent quality of HDTV worth additional expenditure; However, any analogue television with a digital TV receiver will be able to receive regular digital TV signals, be it a high -resolution television or not.
TheUnited States Congress ordered the transition to digital television standard for two main reasons. The first is that digital broadcasting has a higher quality than analog broadcast and is a more effective means of transmission of information. Transmitters are able to transmit more information simultaneously with digital signals than they are capable of with analog signals. In addition, the liberation of analog wave waves allows frequencies to be used by operators for other purposes of public services and wireless telecommunications for other purposes.