22-05-2017, 08:15 PM
(22-05-2017, 01:45 PM)ppppenguin Wrote: Analogue PAL occupies 702 pixels as measured between the middles of blanking rise and fall times. From memory this is centred in the 720 pixel digital active line but I'd need to look it up.
It is: if you look at Test Card J in a digital system you will note that there are two extensions to the 'diamonds' that show the edges of blanking in an analogue system. In an analogue system you would not see anything beyond the very tips of the diamonds.
This has the most accurate picture of J (scroll down).
http://www.murphy-radio.co.uk/gallery/tcf/bbc_tcf.html
