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Give CCIR-B standard

written 7.8 years ago by teamques10 ★ 70k

•   modified 7.7 years ago

Subject :- Television Engineering

Topic :- Fundamentals of Analog TV System

Difficulty :- Medium

tv and video engineering

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1 Answer

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written 7.7 years ago by teamques10 ★ 70k

•   modified 7.7 years ago

Video Characteristics:

1.	Number of lines per picture (frame)	625
2.	Field frequency (Fields/second)	50
3.	Interlace ratio	2:1
4.	Picture (frame) frequency,	25
5.	Line frequency	15625 Hz
6.	Aspect Ratio	4:3
7.	Video Bandwidth	5 MHz
8.	Width of VSB	0.75 MHz

Composite Video Signal Characteristics:

1.	Period of horizontal line	64 µsec
2.	Line blanking interval	12 ± 0.3 µsec
3.	Front porch	1.5 ± 0.3 µsec
4.	Sync pulse width	4.7 ± 0.2 µsec
5.	Back porch	5.8 ± 0.3 µsec
6.	Field blanking period	1280 µsec

Radio Frequency Characteristics:

1.	Channel bandwidth	7 MHz
2.	Picture modulation	AM
3.	Sound signal modulation	FM
4.	Video Modulation	A5, VSB Negative

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