(c) A low frequency signal of 1000 Hz is to be transmitted as an electromagnetic wave travelling in free space. Assume t

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C A Low Frequency Signal Of 1000 Hz Is To Be Transmitted As An Electromagnetic Wave Travelling In Free Space Assume T 1 (40.63 KiB) Viewed 7 times

(c) A low frequency signal of 1000 Hz is to be transmitted as an electromagnetic wave travelling in free space. Assume that the length of the required antenna must be no less than quarter of the wavelength: (d) (i) determine the length of the antenna. (ii) If the signal is now modulated with a carrier of 10 MHz, determine the size of the required antenna. A voltage signal may be represented by the Fourier series given as 10+20 2 1 Σ sin(2n-1)0,1 TT n=1(2n-1) v(t)=10+ - Determine the DC value, and the rms values of the fundamental and the third harmonic of this signal. Solution: