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NTSC

Definition

The television video standard in use in North America, much of South America, and Japan which defines the frame rate and scan lines of a TV frame.

Extended Definition

  • NTSC = National Television System Committee
  • In NTSC, 30 frames are transmitted each second. Each frame is made up of 525 individual scan lines.
  • Another standard, PAL is the predominant video system or standard mostly used overseas. In PAL, 25 frames are transmitted each second. Each frame is made up of 625 individual scan lines.

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Study Guide & References



  • The following chart shows where each video standard is utilized:
PAL
  • Afghanistan
  • Algeria
  • Argentina (N)
  • Austria
  • Australia
  • Bangladesh
  • Belgium
  • Brazil (M)
  • China
  • Denmark
  • Finland
  • Germany
  • Hong Kong
  • Iceland
  • India
  • Indonesia
  • Iraq
  • Ireland
  • Israel
  • Italy
  • Jordan
  • Kenya
  • Kuwait
  • Liberia
  • Malaysia
  • Netherlands
  • Nigeria
  • Norway
  • New Guinea
  • Pakistan
  • Singapore
  • South Africa
  • South W. Africa
  • Sudan
  • Sweden
  • Switzerland
  • Thailand
  • Turkey
  • Uganda
  • United Kingdom
  • United Arab Emirates
  • Yugoslavia
  • Zambia
NTSC
  • Canada
  • Chile
  • Costa Rica
  • Cuba
  • Dominican Republic
  • Ecuador
  • Japan
  • Mexico
  • Nicaragua
  • Panama
  • Peru
  • Philippines
  • Puerto Rico
  • South Korea
  • Taiwan
  • U.S.A.


An NTSC TV has 262.5 scanlines (just think of it as 262 for now) that are written from top to bottom. The lines are interlaced so you actually see a total of 525 visible lines.



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