|
World Video Broadcasting Standards
| |
| Video
Broadcast Standards |
Most countries around the World use one of three main television
broadcast Standards.
These three main standards are NTSC, PAL and SECAM.
However, each standard is incompatible with the other.
For example, a video recording made in the UK could not be played on
US standard VCR's or shown on the TV.
The charts below give a description of each standard and the technical
variations within each.
For a more in depth look at the technical aspects of world television
standards, take a look at Bevis King's excellent
Worldwide TV
Standards - A Web Guide
To find out which standard each country supports, take a look at our Worldwide
Video Standards Listing |
New Web Site: www.salestores1.com
or http://salestores1.com
| NTSC |
The first color TV broadcast system was implemented in the United
States in 1953. This was based on the NTSC (National Television
System Committee) standard. NTSC is
used by many countries on the American continent as well as many Asian
countries including Japan.
NTSC runs on 525 lines/frame.
|
| SYSTEM |
NTSC
M |
| Lines/Field |
525/60 |
| Horizontal
Frequency |
15.734
kHz |
| Vertical
Frequency |
60
Hz |
| Color
Subcarrier Frequency |
3.579545
mHz |
| Video
Bandwidth |
4.2
mHz |
| Sound
Carrier |
4.5
mHz |
| PAL |
The PAL (Phase Alternating Line) standard was introduced in the early
1960's and implemented in most European countries except for France.
The PAL standard uses a wider channel bandwidth than NTSC which allows
for better picture quality. PAL runs on 625 lines/frame.
|
| SYSTEM |
PAL
B,G,H |
PAL
I |
PAL
D |
PAL
N |
PAL
M |
| Line/Field |
625/50 |
625/50 |
625/50 |
625/50 |
525/60 |
| Horizontal
Frequency |
15.625
kHz |
15.625
kHz |
15.625
kHz |
15.625
kHz |
15.750
kHz |
| Vertical
Frequency |
50
Hz |
50
Hz |
50
Hz |
50
Hz |
60
Hz |
| Color
Sub Carrier Frequency |
4.433618
MHz |
4.433618
MHz |
4.433618
MHz |
3.582056
MHz |
3.575611
MHz |
| Video
Bandwidth |
5.0
MHz |
5.5
MHz |
6.0
MHz |
4.2
MHz |
4.2
MHz |
| Sound
Carrier |
5.5
MHz |
6.0
MHz |
6.5
MHz |
4.5
MHz |
4.5
MHz |
| SECAM |
The SECAM (Sequential Couleur Avec
Memoire or Sequential Color
with Memory) standard was introduced in the early
1960's and implemented in France. SECAM uses the same bandwidth as PAL
but transmits the color information sequentially.
SECAM runs on 625 lines/frame.
|
| SYSTEM |
SECAM
B,G,H |
SECAM
D,K,K1,L |
| Line/Field |
625/50 |
625/50 |
| Horizontal
Frequency |
15.625
kHz |
15.625
kHz |
| Vertical
Frequency |
50
Hz |
50
Hz |
| Video
Bandwidth |
5.0
MHz |
6.0
MHz |
| Sound
Carrier |
5.5
MHz |
6.5
MHz |
|
|
| |
Ads by Google
|
