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In the Dominican Republic, the Indian-head pattern was used by its public broadcaster Corporación Estatal de Radio y Televisión (CERTV) in the late-1960s and 1970s (in conjunction with the EIA 1956 resolution chart test card) after playing the National Anthem of the Dominican Republic at sign-off. Swedish botanist and radio and TV personality ...
A test card, also known as a test pattern or start-up/closedown test, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at sign-on and sign-off). [1] Used since the earliest TV broadcasts, test cards were originally physical cards at which a television camera was ...
Some stations, after doing a sign-off, nonetheless continue to transmit throughout the off-air period on cable/satellite; this transmission may involve a test pattern, static image, local weather radar display, teletext pages or full-page headlines which was accompanied by music or a local weather radio service.
A precursor to the SMPTE test pattern was conceived by Norbert D. Larky (1927–2018) [5] [6] and David D. Holmes (1926–2006) [7] [8] of RCA Laboratories and first published in RCA Licensee Bulletin LB-819 on February 7, 1951. U.S. patent 2,742,525 Color Test Pattern Generator (now expired) was awarded on April 17, 1956, to Larky and Holmes. [9]
The sign-off was usually marked by a set sequence preceding the shutdown of the station's transmitter (including a video montage set to "The Star-Spangled Banner", a sermonette, and station announcements and technical information), usually concluded by a test pattern (such as the SMPTE color bars) that lasts for several minutes until the ...
The RMA 1946 Resolution Chart was transmitted by NTS and NOS in the Netherlands, SRG SSR in Switzerland, [18] VRT and RTBF in Belgium, RTP in Portugal, TVP in Poland, TVB in Hong Kong, [citation needed] Venevisión in Venezuela (525-lines variant; in conjunction with Indian-head test pattern), [citation needed] WISN-TV in Milwaukee, Wisconsin (525-lines variant) [19] and on low-powered ...
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Off-air recording of TVE 1 version (1990–93 version, on 3 March 1992) Off-air recording of TVE 2 version (on 6 January 2001, the final day of broadcast before starting 24/7 transmissions) The test card was considered part of the regular TV schedule, figuring among daily program listings published in newspapers and magazines.