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test card
noun
- a complex pattern used to test the characteristics of a television transmission system
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Example Sentences
You should have a distance test card placed at a distance of twenty feet from the person you are examining, and in a good light.
From Project Gutenberg
All the lines on the test card should look equally black and clear to the normal eye.
From Project Gutenberg
I do want to bring that out; the address on the aptitude test card, I see, is 3519 Fairmount in Dallas.
From Project Gutenberg
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