1.

A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal is(a) 2.23 kW(b) 2.36 Kw(c) 1.18 kW(d) 1.26 kWI got this question during an interview.Query is from Amplitde Modulation in section EDC Overview of Electronic Devices & Circuits

Answer»

The CORRECT answer is (a) 2.23 kW

To explain: PT = Pc (1 + 0.49/2).



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