This article is about the analog standard-definition resolution. For the equivalent digital SD resolution, see 576i.
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Analog TV standard by nation; countries using 625-line are in blue.Image showing the full 625 line raster containing the visible 576 line image area
625-line (or CCIR 625/50) is a late 1940s European analog standard-definition television resolution standard.[1][2] It consists of a 625-line raster, with 576 lines carrying the visible image at 25 interlaced frames per second. It was eventually adopted by countries using 50 Hz utility frequency as regular TV broadcasts resumed after World War II.[3] With the introduction of color television in the 1960s,[4] it became associated with the PAL and SECAM analog color systems.
A similar 525-line system was adopted by countries using 60 Hz utility frequency (like the US). Other systems, like 375-line, 405-line, 441-line, 455-line and 819-line existed, but became outdated or had limited adoption.
The modern standard-definition digital video resolution 576i is equivalent and can be used to digitize an analogue 625-line TV signal, or to generate a 625-line compatible analog signal.[5]
^Observer, Reflective (December 23, 2021). "Where did 625-line TV come from?".
^"Televisionen - Das Fernsehen in der UdSSR / TV in the USSR Die Geschichte des Fernsehens in Russland". www.scheida.at.
^"Piet's Home-built Television". Maximus R&D.
^"Television broadcasting 1960-70: BBC 625-line services and the introduction of colour" (PDF).
625-line (or CCIR 625/50) is a late 1940s European analog standard-definition television resolution standard. It consists of a 625-line raster, with 576...
the others being NTSC and SECAM. In most countries it was broadcast at 625lines, 50 fields (25 frames) per second, and associated with CCIR analogue broadcast...
use. System M 525 lines (most countries in the Americas and Caribbean, South Korea, Taiwan and the Philippines) System N 625lines (used in Argentina...
Belgian systems (System C, 625lines, and System F, 819 lines) and the two French systems (System E, 819 lines, and System L, 625lines). In positive modulation...
analog 625-lines UHF network with SECAM colour, some transmitters and gapfillers broadcast the 819-line signal in UHF. When switching to 625-lines, most...
625 Lineas (English: 625Lines) was a program broadcast on La Primera Cadena of Televisión Española on Sunday afternoons from November 18, 1976 to April...
standard. D-2, a 1988 SMPTE composite digital recording video standard. 625lines 480p Pursell, Carroll (April 30, 2008). A Companion to American Technology...
field) consisting of the odd-numbered lines and an even field (lower field) consisting of the even-numbered lines. Analog display devices reproduce each...
405 lines System A 525 lines System M Color systems: NTSC, NTSC-J, Clear-Vision, PAL-M B-MAC 625lines System B, C, D, G, H, I, K, L, N Color systems:...
Retrieved 11 October 2016. "On the beginning of broadcast in 625lines 60 years ago", 625 magazine (in Russian). Archived 4 March 2016 at the Wayback Machine...
HDTV and SDTV formats, which refer to a format by the number of pixels/lines along the vertical axis (such as "1080p" for 1920 × 1080 progressive scan...
with the number of horizontal scanning lines of such systems, which e.g. 625lines for the PAL system, 525 lines for the NTSC system. Since analog transmission...
offering 625lines of vertical resolution was prepared. This format was ultimately accepted as a national standard. The transmissions in 625-line format...
Korea, Taiwan and Philippines), or 50 Hz for regions that use or used 625-lines (PAL or SECAM) television system with 50 fields/sec (such as most of Europe...
meeting in July 1950, Dr. Gerber (a Swiss engineer), proposed a modified 625-lines system with a 7 MHz channel bandwidth (based on work by Telefunken and...
720p (720 lines progressive) is a progressive HD signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of 16:9, normally known...
rate, as in 576i/25. In analogue television, the full raster uses 625lines, with 49 lines having no image content to allow time for cathode ray tube circuits...
second) for NTSC 525 lines/30fps-standard quad decks and at 15,000 RPM (for 1,000 stripes per second) for those using the PAL 625lines/25fps video standard...
meeting in July 1950 Dr. Gerber (a Swiss engineer), proposed a modified 625-lines system with a 7 MHz channel bandwidth (based on work by Telefunken and...
started on 24 June, 1955 (in NTSC). Color telecasts (PAL, System B/G 625lines) were started in 1967, and full-time color transmissions were launched...
refresh frequency of 60⁄1.001 Hz (approximately 59.94 Hz). For comparison, 625lines (576 visible) systems, usually used with PAL-B/G and SECAM color, and...
and uses SMPTE 170M primaries and white point) and 525 lines 60/1.001 Hz (SMPTE 273M) and 625lines 50 Hz (ITU-R BT.1358) BT.601 matrix is used. To send...
on 625-lines UHF rather than the 405-lines VHF system then used by the other channels. Other programme series included Theatre 625 and Cinema 625. The...
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