Difference between revisions of "PAL"

From MythTV Official Wiki
Jump to: navigation, search
m (Link broken - found alternative)
 
(4 intermediate revisions by 4 users not shown)
Line 1: Line 1:
(Phase Alternating Line) Standard broadcast signal received by Televisions in many European countries. The main difference between NTSC, the television standard used in the United States, and PAL is that NTSC delivers 525 lines of resolution at 60 half-frames per second, whereas PAL delivers 625 lines at 50 half-frames per second.
+
(Phase Alternating Line) Standard broadcast signal received by Televisions in many European countries. PAL color is usually used on broadcasts using 625-line (576/25i) [[scanning system]]s, mostly in Europe and the UK.
 +
 
 +
A list of [http://countrycode.org/tv-standards countries and their TV standards] is often difficult to find, but Google found this quite comprehensive one.
 +
 
 +
PAL comes in 7 variants:
 +
{|border=1 cellspacing=0 cellpadding=5
 +
!Parameter||PAL B-G-H||PAL I||PAL D||PAL N||PAL M
 +
|-
 +
|line/field
 +
|align="center" colspan=4|625/50
 +
|align="center" |525/60
 +
|-
 +
|horiz. freq.
 +
|align="center" colspan=4|15.625kHz
 +
|align="center" |15.734kHz
 +
|-
 +
|vert. freq
 +
|align="center" colspan=4|50Hz
 +
|align="center" |60Hz
 +
|-
 +
|colour sub carrier freq.
 +
|align="center" colspan=3|4.433618MHz
 +
|align="center" |3.58206MHz
 +
|align="center" |3.575611MHz
 +
|-
 +
|video bandwidth
 +
|align="center" |5.0MHz||5.5MHz||6.0MHz
 +
|align="center" colspan=2|4.2MHz
 +
|-
 +
|audio carrier
 +
|align="center" |5.5MHz (FM)||6.0MHz||6.5MHz
 +
|align="center" colspan=2|4.5MHz
 +
|}
 +
 
 +
 
  
 
[[Category:Glossary]]
 
[[Category:Glossary]]

Latest revision as of 08:19, 21 May 2010

(Phase Alternating Line) Standard broadcast signal received by Televisions in many European countries. PAL color is usually used on broadcasts using 625-line (576/25i) scanning systems, mostly in Europe and the UK.

A list of countries and their TV standards is often difficult to find, but Google found this quite comprehensive one.

PAL comes in 7 variants:

Parameter PAL B-G-H PAL I PAL D PAL N PAL M
line/field 625/50 525/60
horiz. freq. 15.625kHz 15.734kHz
vert. freq 50Hz 60Hz
colour sub carrier freq. 4.433618MHz 3.58206MHz 3.575611MHz
video bandwidth 5.0MHz 5.5MHz 6.0MHz 4.2MHz
audio carrier 5.5MHz (FM) 6.0MHz 6.5MHz 4.5MHz