Question

In India, the subcarrier frequency for transmission of color difference signals in television is approximately ________

(a) 10.47 MHZ

(b) 5.4 MHZ

(c) 7.67 MHZ

(d) 1.3 MHZ

This question was posed to me by my college director while I was bunking the class.

My question is based upon Hilbert Transform topic in portion Double Sideband Suppressed Carrier Modulation of Analog Communications

Answer 1

The correct answer is (d) 1.3 MHZ

To elaborate: A carrier wave is a signal with a high frequency which is modulated for transmitting the information signal. A subcarrier is a sideband of the carrier wave, which is also modulated to send additional information. In India, the subcarrier frequency for transmission of color difference signals in television is approximately 1.3MHz.