About: ETP-1

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ETP-1 (or Electronic Test Pattern One) was a test card designed and used by the Independent Broadcasting Authority (IBA). After test transmissions from the IBA's Engineering Regional Operations Centre (ROC) in Croydon from 1978 it was phased in on ITV over a period starting from 1979, replacing, in different ITV regions: Test Card F, Test Card G and full screen height EBU colour bars. After ITV went 24 hours in 1988, the card ceased to be seen on the channel. It was used for both 625-line PAL and 405-line monochrome broadcasts.

Attributes	Values
rdf:type	company yago:WikicatTestCards yago:Abstraction100002137 yago:Card102962545 yago:Material114580897 yago:Matter100020827 yago:Paper114974264 yago:Part113809207 yago:PhysicalEntity100001930 yago:Relation100031921 yago:Substance100019613
rdfs:label	ETP-1 (en)
rdfs:comment	ETP-1 (or Electronic Test Pattern One) was a test card designed and used by the Independent Broadcasting Authority (IBA). After test transmissions from the IBA's Engineering Regional Operations Centre (ROC) in Croydon from 1978 it was phased in on ITV over a period starting from 1979, replacing, in different ITV regions: Test Card F, Test Card G and full screen height EBU colour bars. After ITV went 24 hours in 1988, the card ceased to be seen on the channel. It was used for both 625-line PAL and 405-line monochrome broadcasts. (en)
foaf:depiction
dct:subject	Test cards 1992 disestablishments in the United Kingdom 1978 in British television Broadcast engineering British inventions Telecommunications-related introductions in 1978 1978 establishments in the United Kingdom
Wikipage page ID	12930179 (xsd:integer)
Wikipage revision ID	1090231278 (xsd:integer)
Link from a Wikipage to another Wikipage	4-Tel on View Test cards EBU colour bars Independent Broadcasting Authority Integral linearity Sbectel 1992 disestablishments in the United Kingdom Crystal Palace transmitting station Analog delay line S4C S4C Clic ORACLE (teletext) Philips PM5540 Production music Crystal oscillator Test Card F 1978 in British television Arqiva Colorfulness Square wave 625 lines Display resolution Amplitude Analog television Analogue television 24/7 service 405-line television system Bandwidth (signal processing) Overscan Chrominance Broadcast engineering Greyscale Test card Shopping channel British inventions Telecommunications-related introductions in 1978 1978 establishments in the United Kingdom Channel 4 Block programming Teletext ITV (TV network) Cathode-ray tube Luminance Sine wave Ghosting (television) Philips PM5544 Spatial frequency Telefunken FuBK
sameAs	ETP-1 ETP-1 ETP-1 ETP-1
dbp:wikiPageUsesTemplate	dbt:Commons_category dbt:Reflist dbt:Short_description dbt:Standard_test_item
thumbnail	wiki-commons:Special:FilePath/ETP-1_recreation.svg?width=300
has abstract	ETP-1 (or Electronic Test Pattern One) was a test card designed and used by the Independent Broadcasting Authority (IBA). After test transmissions from the IBA's Engineering Regional Operations Centre (ROC) in Croydon from 1978 it was phased in on ITV over a period starting from 1979, replacing, in different ITV regions: Test Card F, Test Card G and full screen height EBU colour bars. After ITV went 24 hours in 1988, the card ceased to be seen on the channel. It was used for both 625-line PAL and 405-line monochrome broadcasts. It was also seen extensively on both Channel 4 and S4C during both their pre-launch tests and their downtime of those channels, due to their limited hours early on. After launch, it was alternated with in-vision teletext services from ORACLE and 4-Tel on View/Sbectel. On these channels, it was captioned either IBA:CH4 or IBA:S4C, with lines above and below this indicating the card was being generated by the channel, the absence of these lines meant it was generated at the transmitter. After the splitting up of the IBA in 1990, the captioning was changed to NTL:CH4/NTL:S4C. ETP-1 was last broadcast on 31 December 1992 after which Channel 4 showed 4-Tel on View during closedown periods as the channel gradually increased its late night programming, eventually going 24 hours a day early in 1997. After the conclusion of its late-night teleshopping block, S4C shows a closedown slide promoting its S4C Clic VOD service with library music playing in the background during off-air hours. On 18 April 2012, ETP-1 made one final appearance on Channel 4 to announce the loss of analogue television services in the London region. The card was shown from the Crystal Palace transmitter only, and was the last thing broadcast by analogue Channel 4 before the signal was switched off. (en)
gold:hypernym	Card
prov:wasDerivedFrom	wikipedia-en:ETP-1?oldid=1090231278&ns=0
page length (characters) of wiki page	7560 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:ETP-1
is Link from a Wikipage to another Wikipage of	ORACLE (teletext) Timeline of Channel 4 Timeline of ITV 1992 in British television Test Card F 1979 in British television 2012 in British television List of BBC test cards Fourth UK television service Test card ITV Nightscreen Video-signal generator

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