Television and Video

What is PAL?


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2011-09-13 17:25:16
2011-09-13 17:25:16

Like NTSC, PAL is a set of standards for television.

PAL is widely used in Europe while NTSC is used in the Americas and some Asian countries. The crucial difference then between PAL and NTSC is that A PAL set has a DELAY LINE whilest a NTSC set does not.

PAL stands for Phase Alternating Line and is used primarily to correct phase errors that have occured due to to varying propogation conditions such as terrain which is capable of altering the phase of the colour signals R-Y and B-Y ( Green is not transmitted ) The prime principle of correcting the phase errors occur with in the receiver . The colour information is stored in a delay line on alternate lines, the stored line is then compared to the next line and an error signal is produced which is used to "Pull " the subcrrier oscilater to alter its frequency hence the phase and the hue of the colour information . A burst of sub carrier frequency of 4.43 MGHZ, approx 10 cycles is rectified and used to provide a n ident signal which when present switches the chroma amps on , Of course a monochrome TV does not receive the ident signal and continues to show the programme in B?W . This is what is know as reverse compatibility .

PAL does not directly specify the number of lines in the picture. The full system name does however: PAL 625 Line.

In France they use a different system called "SECAM".

In the early days, PAL was certainly a better system to encode the color information. However, the introduction of digital production and far better timing circuitry has virtually eliminated the color variations that Brits would notice when watching NTSC for the first time. A well timed NTSC signal is almost impossible to tell apart from a PAL signal in terms of color quality.

However, The US and other NTSC countries use a 30 Hz frame rate while PAL and the Europeans use 25Hz frame rate. It can be argued that the lower frame rate used by Europe causes more flicker than the US frame rate. My American colleagues in the broadcast industry consistently notice the frame rate difference when they come to Europe (ok, so they are all engineering nerds and maybe others wouldn't notice). For that reason, even in Europe, when demonstrating broadcast production equipment, we often use 30Hz material to get the higher frame rate.


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it depends on what console sysytem u have if ur consoles pal then it works on pal if its ntsc then it wont work on pal.

correspondant is the translation of pen pal. It is a person who becomes friendly.

Pal the Dog has: Played Pal in "Queenie" in 1921. Played himself in "Screen Snapshots, Series 2, No. 14-F" in 1921. Performed in "The Sawmill" in 1922. Played Pal in "Lots of Nerve" in 1923. Played Pal in "Down to the Ship to See" in 1923. Played Pal in "My Pal" in 1923. Performed in "Tips" in 1923. Played Pal in "Mind the Baby" in 1924. Played Pal in "Poor Kid" in 1924. Played Pal in "Delivering the Goods" in 1924. Performed in "That Oriental Game" in 1924. Performed in "Checking Out" in 1924. Played Pal in "The Rich Pup" in 1924. Performed in "Gold and the Girl" in 1925. Played Pal in "Sea Scamps" in 1926. Played Pal in "Napoleon, Jr." in 1926. Played Pal in "Open Spaces" in 1926. Played Pal in "The Gay Retreat" in 1927. Performed in "Love Is Blonde" in 1928.

A pal is a close friend, a person someone can rely on.

There is no pal park on ruby! Gtfo

Tigger's pal is Roo, the young kangaroo.

PAL is the standard format for European consoles.

Graciela Pal was born in Argentina.

Jonathan Pal is 5' 6".

Pal College was created in 2006.

Pal Gazulli was born in 1405.

Pal Gazulli died in 1470.

Jagdambika Pal was born in 1950.

PAL Express ended in 2010.

Arpita Pal was born in 1974.

Colin Pal was born in 1923.

Colin Pal died in 2005.

Pal Dushi died in 1455.

Sridam Pal died in 1988.

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