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In televisions, equalizing pulses are sent during __________(a) horizontal blanking(b) vertical blanking(c) serrations(d) horizontal retraceI got this question in an international level competition.My query is from Advantages of Filter Method in portion SSB Modulation of Analog Communications

Answer»

The correct OPTION is (a) horizontal blanking

To explain: The duration of an equalizing pulse is approximately 2.5 microseconds. The REPETITION frequency of equalizing pulses is TWICE the line frequency. It is NECESSARY to sent equalizing pulses during horizontal blanking in televisions.



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