- test card
- (test kahrd) a card printed with various letters or symbols, used in testing vision.
Medical dictionary. 2011.
test card
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Test Card F — is a test card that was created by the BBC and used on television in the United Kingdom and in countries elsewhere in the world for more than four decades. Like other test cards, it was usually shown while no programmes were being broadcast, but… … Wikipedia
Test Card J — is a test card, an image used to determine the quality of a broadcast television picture. It is an updated version of Test Card F, which was created by BBC engineer George Hersee, and it first appeared in November 1999.DifferencesThe centre… … Wikipedia
Test Card W — is a test card, an image used to determine the quality of a broadcast television picture. It is an updated 16:9 (1.78:1) widescreen version of Test Card F, which was created by BBC engineer George Hersee. Test Card W is similar to Test Card J,… … Wikipedia
test card — see ↑test pattern below. • • • Main Entry: ↑test test pattern, test card or test chart noun (image technol) A transmitted chart with lines and details to indicate particular characteristics of a transmission system, used in TV for general testing … Useful english dictionary
Test Card H — is the name given to a test card designed by the BBC. However, it was never broadcast and used as a line up chart for cameras, possibly used to test chroma specifications as well as resolution and bandwidth.ee also*List of BBC test cards … Wikipedia
test card — test ,card noun count BRITISH a TEST PATTERN … Usage of the words and phrases in modern English
test card — n BrE a pattern or picture that is shown on television when there are no programmes … Dictionary of contemporary English
test card — ► NOUN Brit. ▪ a still television picture transmitted outside normal programme hours to aid in judging the quality of the image … English terms dictionary
Test card — A test card, also known as a test pattern in the UK, North America and Australia, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at startup and closedown). Used… … Wikipedia
test card — UK / US noun [countable] Word forms test card : singular test card plural test cards British a pattern of lines and colours that you see on your television screen when there are no programmes … English dictionary
