11 Facts About PAL


PAL video is composite video because luminance and chrominance are transmitted together as one signal.

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Almost all of the countries using PAL are currently in the process of conversion, or have already converted transmission standards to DVB, ISDB or DTMB.

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PAL was adopted by most European countries, by all African countries that had never been a Belgian or French colony, by Argentina, Brazil, Paraguay, Uruguay, and by most of Asia-Pacific.

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Countries in those regions that did not adopt PAL were France, most ex-Soviet states, Japan, South Korea, Liberia, Myanmar, the Philippines, and Taiwan.

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In 1993, an evolution of PAL aimed to improve and enhance format by allowing 16:9 aspect ratio broadcasts, while remaining compatible with existing television receivers, was introduced.

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Early PAL receivers relied on the human eye to do that cancelling; however, this resulted in a comb-like effect known as Hanover bars on larger phase errors.

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Some countries in Eastern Europe which formerly used SECAM with systems D and K have switched to PAL while leaving other aspects of their video system the same, resulting in the different sound carrier.

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The majority of countries using or having used PAL have television standards with 625 lines and 50 fields per second.

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NTSC is used with a frame rate of 60i or 30p whereas PAL generally uses 50i or 25p; both use a high enough frame rate to give the illusion of fluid motion.

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Chrominance phase errors in the PAL system are cancelled out using a 1H delay line resulting in lower saturation, which is much less noticeable to the eye than NTSC hue errors.

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Games ported to PAL have historically been known for having game speed and frame rates inferior to their NTSC counterparts, being typically slowed by approximately 16.

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