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Ntsc Or Pal


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#1 vjreddy12

vjreddy12

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Posted 16 February 2004 - 11:39 PM

Hi All,

I gathered this info of the net from various sites. It basically explains the differences between PAL and NTSC for those of you who dont know wink.gif .

There are two television display systems in Commercial use:

1.PAL (common in Europe and parts of Asia) delivers a scanning/frame rate of 25 fps (frames per second) with 625 lines.

2.NTSC (used in the U.S. and Canada) delivers a scanning/frame rate of 29.97 fps using 525 lines.

(A TV signal is made from interlaced half-frames, hence the 25 fps in 50 Hz countries, and 30 fps in 60 Hz countries.)

A problem that is indirectly related to PAL and NTSC is the power supply for video game consoles. Countries that use the PAL standard usually have AC current of 50 Hz, with voltages of 220 V or more. In contrast, countries that use the NTSC system use AC current of 60 Hz, with voltages of around 100-120 V.

This means that if you intend to buy a video game console from a different country, you may need a voltage converter (a step-up or step-down transformer, respectively).

The color information of the signal is also encoded differently. Although most TVs have the ability to display both 50 and 60 Hz signals, without proper decoding of the PAL or NTSC signal the color information will be lost and the picture appears black and white.

These technical differences are the reason the incompatibility of PAL and NTSC video game consoles.

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