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PAL

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Phase Alternating Line: video format – used in most of Western Europe, Australia and China as well as in various African, South American and Middle Eastern countries – with a 4:3 image format, 625 lines per frame, a field frequency of 50Hz and 4 MHz video bandwidth with a total 8 MHz of video channel width. PAL has a 25-frame per second update rate and uses YUV colour space.