What is the difference between DTV, HDTV, and SDTV?
“DTV” is a general reference to Digital Television, as compared to “analog” Television. DTV broadcasts can be either HDTV (high-definition television) or SDTV (standard-definition television). HDTV can broadcast at resolutions typically as high as 1920 by 1080 pixels (2 million pixels), whereas the resolutions of SDTV broadcasts are typically only as high as 640 by 480 pixels (290,000 pixels). In comparison, analog television produces a total of about 210,000 pixels. Broadcasters and cable providers can choose which format of DTV they transmit, and most DTV’s and new HDTV set-top boxes will be able to receive the signal regardless of which format is transmitted. Note, however, that your standard analog TV set will not be able to receive DTV signals (neither HDTV nor SDTV).
“DTV” is a general reference to Digital Television, as compared to “analog” Television. DTV broadcasts can be either HDTV (high-definition television) or SDTV (standard-definition television). HDTV can broadcast at resolutions typically as high as 1920 by 1080 pixels (2 million pixels), whereas the resolutions of SDTV broadcasts are typically only as high as 640 by 480 pixels (290,000 pixels). In comparison, analog television produces a total of about 210,000 pixels. Broadcasters and cable providers can choose which format of DTV they transmit, and most DTV’s and new HDTV set-top boxes will be able to receive the signal regardless of which format is transmitted. Note, however, that your standard analog TV set will not be able to receive DTV signals (neither HDTVnor SDTV).
A digital signal is an analog signal that has been digitized, transmitted to you in a digital format, and converted back to analog for display on an analog TV. “DTV” is a general reference to Digital Television, as compared to “analog” Television. DTV broadcasts can be either HD (high-definition television) or SDTV (standard-definition television). HD service can broadcast at resolutions typically as high as 1920 by 1080 pixels (2 million pixels), whereas the resolutions of SDTV broadcasts are typically only as high as 640 by 480 pixels (290,000 pixels). In comparison, analog television produces a total of about 210,000 pixels. Broadcasters and cable providers can choose which format of DTV they transmit, and most DTV’s and new HD set-top boxes will be able to receive the signal regardless of which format is transmitted. An HDTV set or HDTV monitor coupled with an HDTV receiver/decoder is required to display an HD signal. All DTVs can receive a SDTV signal, but not necessarily an analo
