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A test card is an image, broadcast to ensure a correct television signal. A test card, also known as a test pattern in North America, is a television test signal, typically broadcast at times when the transmitter is active, but no programmes are being broadcast. ...
 BBC Test Card F Test Card F was a test card, an image used to determine the quality of a broadcast television picture, and due to its use on BBC television for more than 30 years when broadcasting was off the air, it is probably the most commonly seen test...
Image File history File links The BBCs Test Card F, used from 1967 to 1999. ...
The actual test card used on-screen would not carry the copyright branding shown. Instead, it would usually show the channel name, i.e. "BBC 1"
 Test Card J is a test card, an image used to determine the quality of a broadcast television picture. ...
Image File history File links The BBC Test Card J, first used November 1999. ...
 Test Card W is a test card, an image used to determine the quality of a broadcast television picture. ...
Image File history File links The BBCs Widescreen Test Card, first used with Test Card J in November 1999. ...
 The Indian Head test pattern The Indian Head test card was a black and white television test pattern used by RCA that was introduced in 1939. ...
This is the Indian Head monoscope test pattern, developed by RCA and commonly seen on off-the-air U.S. television stations in the 50s and 60s. ...
 The SMPTE color bars SMPTE color bars is a type of television test pattern, and is most commonly used in countries where the NTSC video standard is dominant, such as in North America. ...
Image File history File links SMPTE color bars, created by Denelson83 File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Philips PM5544
 Image File history File links Philips PM5544 television test card This is a screenshot of a copyrighted website, video game graphic, computer program graphic, television broadcast, or film. ...
EBU Test Card
 The European Broadcasting Union (EBU), known in French as LUnion Européenne de Radio-Télévision (UER), and unrelated to the European Union, was formed February 12, 1950 by 23 broadcasting organizations from Europe and the Mediterranean at a conference in the coastal resort of Torquay in Devon...
Image File history File links European Broadcasting Union Colorbars. ...
See also The following is a list of test cards used by the BBC at various points in broadcasting. ...
External links - 625 UK dot com Flash Files - high quality Macromedia Flash examples of almost all British test cards and station idents (the test cards are at the bottom of the page and include C, D, F, J, W and ETP-1) - added 9/2004
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