Encyclopedia > Standard definition television

Article Content

Standard definition television

Standard definition television or SDTV is one of the formats used in digital television broadcasting.

SDTV can be broadcast in 704 pixels × 480 lines (16:9 and 4:3 ratios) or 640 pixels × 480 lines (4:3 ratio). The refresh rate can be any of 24, 30 or 60 pictures per second.

SDTV in 4:3 aspect ratio has the same appearance as the regular analogue TV (NTSC, PAL, PAL2[?], SECAM) minus the ghostly, snowy images and static noises.

Reference: [ATSC (http://www.atsc.org/press/PR_Def)]

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

French resistance

... groups had also Spanish members who had fought in the Republican side of the Spanish Civil War. Resistance groups also helped Allied pilots who had been shot down to ...