A transmitter antenna broadcasts a non-commercial FM signal having modulation index mf = 5 and carrier...
A transmitter antenna broadcasts a non-commercial FM signal having modulation index mf = 5 and carrier deviation Δfc = 40.5 kHz.
- Find the number of pairs of sidebands from Bessel’s table.
- What is the frequency separation between the sidebands?
- Find the bandwidth required to transmit the FM signal from parts a and b.
Homework Answers
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A transmitter antenna broadcasts a non-commercial FM signal
having modulation index mf = 5 and carrier...
(TCO 4) A few blocks of a (non-commercial) FM transmitter are shown in the diagram below....
(TCO 4) A few blocks of a
(non-commercial) FM transmitter are shown in the diagram below.
Using Carson's Rule, find the required bandwidth of the radiated
signal.
(TCO 4) A few blocks of a (non-commercial) FM transmitter are shown in the diagram below. Using Carson's Rule, find the required bandwidth of the radiated signal. Reactance Carrier Frequency Final 4 VP-P Modulator oscillator Multiplier Power 10 KHz +/- 215 Hz / V- 1.97593 MHz 1 doubler 2 triplers 25.48 kHz 30.96...
2. An FM modulator with modulation index m-2kradians/(voltxsec) has an input signal 2sin2π(1000)t). The carrier signal...
2. An FM modulator with modulation index m-2kradians/(voltxsec) has an input signal 2sin2π(1000)t). The carrier signal has amplitude Ac-50V a. Find the number of significant sideband pairs (level above 0.01Ac) b. Find the Carson's rule bandwidth BCarson.
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass...
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass filter (BPF) with mid-band frequency f and bandwidth 5f. where f is the carrier frequency and fmis the frequency of the baseband modulating signal (i) Sketch the spectrum of the BPF output. (ii) Determine the fraction of the power of the FM signal that is present at the output of the filter (b) Consider the FM signal given by фFM (t)-100 cos...
Engineering question. Please provide your work. Please explain how you got each number in your work. Please do not copy your work and answers from other people's links. 2. Erequency modulation (F...
Engineering question. Please provide your work. Please explain
how you got each number in your work. Please do not copy your work
and answers from other people's links.
2. Erequency modulation (FM) An FM transmitter has a deviation sensitivity of 10 kHz/mV. Both modulating signals have an amplitude of 4.5 mV. Complete the following table: Modulation index, m Carrier frequency deviation, of Modulating signal frequency, fm 50 Hz 15,000 Hz
2. Erequency modulation (FM) An FM transmitter has a deviation...
1 2 4. The amplitude modulation signal is given by the following expression and is applied...
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...
12. An FM signal has a deviation of 3 kHz and a modulating frequency of 1...
12. An FM signal has a deviation of 3 kHz and a modulating frequency of 1 kHz. Its total power Pris 5 W, developed across a 50 2 resistive load. The carrier frequency is 160 MHz (a) Calculate the RMS signal voltage VI (b) Calculate the RMS voltage at the carrier frequency and each of the first three sets of sidebands. (c) For the first three sideband pairs, calculate the frequency of each sideband. (d) Calculate the power at the...
5. Consider the following message signal: -2 Assume that the carrier frequency is f are kr 105, k...
5. Consider the following message signal: -2 Assume that the carrier frequency is f are kr 105, kp 25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown in the above...
An FM signal has an intelligence frequency of 5 KHz, a maximum deviation of 30 KHz, and a carrier frequency of 162.4 MHz. Use the Bessel Function chart to answer the following: a) Its bandwidth b) How...
An FM signal has an intelligence frequency of 5 KHz, a maximum deviation of 30 KHz, and a carrier frequency of 162.4 MHz. Use the Bessel Function chart to answer the following: a) Its bandwidth b) How many frequency components are there in the output spectrum? c) What is the frequency of the highest frequency component within its bandwidth?
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f ar...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
[5 Marks] uestion 1 A high frequency carrier is frequency modulated by a sinusoidal modulating frequency...
[5 Marks] uestion 1 A high frequency carrier is frequency modulated by a sinusoidal modulating frequency of 2 KHz, resulting in a frequency deviation of 7 Khz.Calculate the bandwidth of the modulated signal. a) [1 Mark] [1.Mark] 0.5 mark] 2.5 Marks] b) Explain how noise immunity is achieved in FM With aid of a neatly labelled illustration describe the Frequency Shift Keying c) Discuss the advantages and de merits of Frequency modulation d) [5 Marks] Question 2 n SSB transmitter...
(TCO 4) A few blocks of a
(non-commercial) FM transmitter are shown in the diagram below.
Using Carson's Rule, find the required bandwidth of the radiated
signal.
(TCO 4) A few blocks of a (non-commercial) FM transmitter are shown in the diagram below. Using Carson's Rule, find the required bandwidth of the radiated signal. Reactance Carrier Frequency Final 4 VP-P Modulator oscillator Multiplier Power 10 KHz +/- 215 Hz / V- 1.97593 MHz 1 doubler 2 triplers 25.48 kHz 30.96...
2. An FM modulator with modulation index m-2kradians/(voltxsec) has an input signal 2sin2π(1000)t). The carrier signal has amplitude Ac-50V a. Find the number of significant sideband pairs (level above 0.01Ac) b. Find the Carson's rule bandwidth BCarson.
Prob. 5 (a) Consider the FM signal with modulation index B 2 is passed through an ideal band-pass filter (BPF) with mid-band frequency f and bandwidth 5f. where f is the carrier frequency and fmis the frequency of the baseband modulating signal (i) Sketch the spectrum of the BPF output. (ii) Determine the fraction of the power of the FM signal that is present at the output of the filter (b) Consider the FM signal given by фFM (t)-100 cos...
Engineering question. Please provide your work. Please explain
how you got each number in your work. Please do not copy your work
and answers from other people's links.
2. Erequency modulation (FM) An FM transmitter has a deviation sensitivity of 10 kHz/mV. Both modulating signals have an amplitude of 4.5 mV. Complete the following table: Modulation index, m Carrier frequency deviation, of Modulating signal frequency, fm 50 Hz 15,000 Hz
2. Erequency modulation (FM) An FM transmitter has a deviation...
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...
12. An FM signal has a deviation of 3 kHz and a modulating frequency of 1 kHz. Its total power Pris 5 W, developed across a 50 2 resistive load. The carrier frequency is 160 MHz (a) Calculate the RMS signal voltage VI (b) Calculate the RMS voltage at the carrier frequency and each of the first three sets of sidebands. (c) For the first three sideband pairs, calculate the frequency of each sideband. (d) Calculate the power at the...
5. Consider the following message signal: -2 Assume that the carrier frequency is f are kr 105, kp 25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown in the above...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
[5 Marks] uestion 1 A high frequency carrier is frequency modulated by a sinusoidal modulating frequency of 2 KHz, resulting in a frequency deviation of 7 Khz.Calculate the bandwidth of the modulated signal. a) [1 Mark] [1.Mark] 0.5 mark] 2.5 Marks] b) Explain how noise immunity is achieved in FM With aid of a neatly labelled illustration describe the Frequency Shift Keying c) Discuss the advantages and de merits of Frequency modulation d) [5 Marks] Question 2 n SSB transmitter...
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