Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 4 (Q.No. 48)
48.
In PAL system weighting of R - Y and B - Y signals is done to
prevent over modulation on saturated colours
prevent under modulation of saturated colours
allow over modulation of saturated colours
allow under modulation on saturated colours
Answer: Option
Explanation:

Weighting reduces the chances of over-modulation of the transmitter carrier in the presence of highly saturated colours when picture has very light or very dark parts.

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