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Groups > uk.tech.broadcast > #70540
| From | Brian Gregory <void-invalid-dead-dontuse@email.invalid> |
|---|---|
| Newsgroups | uk.tech.broadcast |
| Subject | Re: Has the way the 4:3 flag is broadcast been changed? |
| Date | 2026-09-18 22:42 +0100 |
| Organization | https://www.Brian-Gregory.me.uk/ |
| Message-ID | <nh5pi5FijfdU1@mid.individual.net> (permalink) |
| References | <117n6q8$3jr1s$1@dont-email.me> <118702e$u449$1@dont-email.me> <118ivml$14a80$2@dont-email.me> <118j9l8$18lvp$1@dont-email.me> |
On 18/09/2026 13:09, NY wrote: > (*) In the same way that the analogue bandwidth was limited to about 5.5 > MHz which limits horizontal resolution. 5.5*10^6 / (625*25) = 352, which > is 352 pairs of alternate black/white pixels, so 704 pixels in total. > And lo-and-behold, that's exactly the resolution that the BBC uses, > whereas a lot of other broadcasters add 16 pixels to give 720. Have you noticed that some stations use 704*576 but sent as 720*576 with 8 black pixels at beginning and end of each line. Very annoying on modern flat screens that usually show every pixel sent. -- Brian Gregory (in England).
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Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-07 21:28 +0100
Re: Has the way the 4:3 flag is broadcast been changed? NY <me@privacy.net> - 2026-09-13 21:11 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-13 22:39 +0100
Re: Has the way the 4:3 flag is broadcast been changed? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-09-13 23:39 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-14 03:12 +0100
Re: Has the way the 4:3 flag is broadcast been changed? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-09-18 22:50 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-19 00:36 +0100
Re: Has the way the 4:3 flag is broadcast been changed? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-09-18 22:57 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-19 00:38 +0100
Re: Has the way the 4:3 flag is broadcast been changed? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-09-19 05:03 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-19 22:01 +0100
Re: Has the way the 4:3 flag is broadcast been changed? richard@cogsci.ed.ac.uk (Richard Tobin) - 2026-09-14 09:55 +0000
Re: Has the way the 4:3 flag is broadcast been changed? NY <me@privacy.net> - 2026-09-14 14:37 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-14 19:15 +0100
Re: Has the way the 4:3 flag is broadcast been changed? wolfgang s <see@sig.nature> - 2026-09-18 09:19 +0000
Re: Has the way the 4:3 flag is broadcast been changed? NY <me@privacy.net> - 2026-09-18 13:09 +0100
Re: Has the way the 4:3 flag is broadcast been changed? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-09-18 22:13 +0100
Re: Has the way the 4:3 flag is broadcast been changed? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-09-18 22:42 +0100
Re: Has the way the 4:3 flag is broadcast been changed? wolfgang s <see@sig.nature> - 2026-09-20 19:03 +0000
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