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Q17: What is the relationship between the message signal's Frequency & Bandwidth. If Fm1 = 20khz...
Suppose that € m(t) = 5cos3000πt is the message signal to be frequency-modulated. a) Calculate the bandwidth of the modulated signal, if the modulation is NBFM. b) For WBFM with bandwidth € BFM ≈ 2Δf...
Suppose that € m(t) = 5cos3000πt is the message signal to be frequency-modulated. a) Calculate the bandwidth of the modulated signal, if the modulation is NBFM. b) For WBFM with bandwidth € BFM ≈ 2Δf , find the smallest value of € kf . (Let > mean “at least ten times” smaller and greater, respectively). c) For the value of € kf found in (b), what is the bandwidth of the modulated signal?
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...
Ved that's similar to the FM signal in Figure 1 (in the preliminary discussion). 13. Use...
Ved that's similar to the FM signal in Figure 1 (in the preliminary discussion). 13. Use the scope's Channel 1 Vertical Position control to overlay the message with the FM signal and compare them. Question 1 Why does the frequency of the carrier change? Ask the instructor to check your work before continuing. Question 2 What is the relationship between the FM signal's frequency deviation (that is, the VCO module's output) and the amplitude of the message? The relationship between...
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...
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated...
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated signal is: vFM(t) = Ac cos[2πfct + βf sin(2πfmt)]. with βf = kfa/fm being the modulation index. What is the bandwidth of the modulated signal.
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated...
Consider frequency modulation with a sinusoidal message signal (tone modulation) m(t) = a cos(2πfmt). The modulated signal is: vFM(t) = Ac cos[2πfct + βf sin(2πfmt)]. with βf = kfa/fm being the modulation index. What is the bandwidth of the modulated signal.
When frequency division multiplexing (FDM) is used to aggregate several modulated channels together, no separation between...
When frequency division multiplexing (FDM) is used to aggregate several modulated channels together, no separation between channels (i.e., use of guard channels) is required. True False Regarding amplitude modulation (AM), if the AM index, µ, is greater than 1, then the modulated passband signal will begin to show signs of signal distortion. True False Given the following AM modulated signal, determine the occupied frequency bandwidth (note: assume double-sideband large carrier (DSB-LC): s(t) = 4[1+0.95 cos(2π3000t)] cos(2π100E9t) a. Frequency bandwidth =...
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the...
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the differences between FM and PM. What is meant by the term instantaneous frequency? 2.) Describe what is meant by the term "Zero-Crossings" of a FM or PM wave. 3.) Is PM and/or FM a linear modulation technique? Explain. 4.) Describe one important advantage that angle modulation has over amplitude modulation. Describe one distinct disadvantage that angle modulation has over amplitude modulation. 5.) Describe the...
What is the relationship between a signal’s spectrum and its bandwidth? What is attenuation? Compare and...
What is the relationship between a signal’s spectrum and its bandwidth? What is attenuation? Compare and contrast DTE with DeE. What are the components of the DTE and DCE? What are the different categories of modulation to change digital signals to analog signals? Define channel capacity and what key factors affect channel capacity. What distinguishes Frequency Division Multiplexing (FDM)? Time Division Multiplexing (TDM)? Statistical Time Division Multiplexing (STDM)? Wavelength Division Multiplexing (WDM)? Why is multiplexing so cost-effective?
a-Calculate the maximum frequency deviation for the FM signal v(t)= 5 cos(6000t+ 4sin2π.200t) b-What is the...
a-Calculate the maximum frequency deviation for the FM signal v(t)= 5 cos(6000t+ 4sin2π.200t) b-What is the modulation index. Is it a NBFM or WBFM c-Calculate the transmission bandwidth by using Carson’s rule. d-What are the significant frequencies of the transmitted signal.
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...
Ved that's similar to the FM signal in Figure 1 (in the preliminary discussion). 13. Use the scope's Channel 1 Vertical Position control to overlay the message with the FM signal and compare them. Question 1 Why does the frequency of the carrier change? Ask the instructor to check your work before continuing. Question 2 What is the relationship between the FM signal's frequency deviation (that is, the VCO module's output) and the amplitude of the message? The relationship between...
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...
1.) Angle Modulation can be subdivided into phase modulation (PM) and frequency modulation (FM). Highlight the differences between FM and PM. What is meant by the term instantaneous frequency? 2.) Describe what is meant by the term "Zero-Crossings" of a FM or PM wave. 3.) Is PM and/or FM a linear modulation technique? Explain. 4.) Describe one important advantage that angle modulation has over amplitude modulation. Describe one distinct disadvantage that angle modulation has over amplitude modulation. 5.) Describe the...
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