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- If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?Fourier Transform for x(t) = 10 rect (t/7) is 10 sinc(10 f) 7 sinc(10 f) 70 sinc(7 f) 10 sinc(7 f) 10 sinc(70 f) LPF filter is the first stage in digital communication and remove high frequency remove low frequency attenuate analog signal amplified analog signal remove all frequencies
- Differentiate between periodic pulse trains and non-periodic pulse trains in the context of digital signals.An analog signal carries 4 bits in each signal unit. If 1000 signal units are sent per second, then baud rate and bit rate of the signal are andIn fiber optics a pulse of light indicates .................... a. 1 bit b. 0 bit c. 1 byte d. 8 bits
- An analog signal has a bit rate of 6000 bps and a baud rate of 2000 baud. How many data elements are carried by each signal element?Power in Amplitude Modulation at 100% Modulation An un modulated AM signal produces a current of 7.3 A. If the modulation is 100 percent, calculate i. the carrier powers ii. the total power iii. the sideband power when it is transmitted through an antenna having an impedance 60 Ω.The propagation speed of electromagnetic signals depends on the medium explain?