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Endpoint: PAL B



created on: 25/06/2017
by: Lo55o (12474)
 
 

Definition properties

General info :
Phase Alternating Line (PAL) is a colour encoding system for analogue television used in broadcast television systems in most countries broadcasting at 625-line / 50 field (25 frame) per second (576i). Other common colour encoding systems are NTSC and SECAM.

The majority of countries using PAL have television standards with 625 lines and 50 fields per second, differences concern the audio carrier frequency and channel bandwidths. The variants are:

- Standards B/G are used in most of Western Europe, Australia, and New Zealand
- Standard I in the UK, Ireland, Hong Kong, South Africa, and Macau
- Standards D/K (along with SECAM) in most of Central and Eastern Europe
- Standard D in mainland China. Most analogue CCTV cameras are Standard D.

Systems B and G are similar. System B is used for 7 MHz-wide channels on VHF, while System G is used for 8 MHz-wide channels on UHF (Australia uses System B on UHF). Similarly, Systems D and K are similar except for the bands they use: System D is only used on VHF (except in mainland China), while System K is only used on UHF. Although System I is used on both bands, it has only been used on UHF in the United Kingdom.
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Submitted by : Lo55o (12474)
on : 25/06/2017