The sinusoidal modulating wave is applied to a phase modulator with phase sensitivity kp. The unmodulated carrier wave has frequency fc and amplitude Ac. a) Determine the spectrum of the resulting ph...
2. A 3 KHz sinusoidal signal Phase Modulates a carrier at 245.3 MHz. The modulating tone has an amplitude of 4 volts and the phase sensitivity of the modulator is 0.5 radians/volt. a. (15 points) Evaluate the required transmission bandwidth using Carson's Rule. b. (15 points) If the resulting PM signal is passed through an IBPF with bandwidth given by Carson's Rule (plus a few Hz), what percentage of the signal power is lost?
1 2 4. The amplitude modulation signal is given by the following expression and is applied to 75 load. Vam(t) = 10 sin (21fct) - 2.5 cos (1500krt) + 2.5 cos (1450krt) V Determine: a) Modulation index b) The frequency of the carrier and the information signal c) The bandwidth d) The total power e) The transmission power efficiency be ar e 5. One of the inputs to a frequency modulator is a 250 kHz carrier signal with amplitude of...