ESET280_W3_Lab_3_AmplitudeModulationanddemodulation Zachary Trotter

In an Amplitude Modulator where the carrier and modulating signals are both sine waves, the frequency spectrum of the resulting AM signal is shown below. 12V 2V 2V kHz 803 808.6 a) Determine the equation of the modulating signal b) Calculate the bandwidth of the AM signal c) Calculate the effective current of the AM signal thru a 75-ohm load. d) Sketch the AM wave and label the maximum and minimum voltage of the signal.

give definition and example about Spectrum Analyzer

For the C.R.O. square voltage waveform shown in Figure determine (a) the periodic time, (b) the frequency and (c) the peak-to-peak voltage. The 'time/cm' (or timebase control) switch is on 100 us/cm and the 'volts/cm' (or signal amplitude control) switch is on 20V/cm.

How it is generated Single Sideband Modulator Using Phasing Metho

Determine the power saving in percent when the carrier is suppressed in an AM signal modulated to 80%

One input to a conventional AM modulator is a 600 kHz carrier with amplitude of 22 V. The second input is a 20 kHz modulating signal that is of sufficient amplitude to cause a change in the output wave of +9 V. Determine: a. Upper and lower side frequencies. b. Percent modulation. c. Peak amplitude of the modulated carrier and the upper and lower side frequency voltages. d. Maximum and minimum amplitudes of the envelope. e. Expression for the modulated wave. Then, f. Draw the output spectrum. g. Sketch the output envelope.

urses / Introduction to Electronic Analysis and Design-CE255/E The pure DC signal has Select one: a. The average of the signal over time is Zero. b. The average of the signal over time is Positive. C. A constant value and a single direction. d. A changing value and a single direction. e. A constant value and a changing direction. ESment CE255/EE255 (O1) - Dr. Mamoun Al-Mistar Jump to...

Determine the peak phase deviation for a PM modulator with a deviation sensitivity k= 1.5 rad/V anda modulating signal vm(t) = 2cos(2π2000t)

Determine the peak phase deviation for a PM modulator with deviation sensitivity K = 3.8 rad/V and a modulating signal vm= 12 sin(2π1000t).

If the maximum frequency deviation is 25kHz and modulating signal frequency is 12kHz.     6c.    Is this FM treated as narrow band or wide band?

If a positive change in modulation signal level of 200 mV will cause a positive frequency deviation of 10 kHz, what I be the frequency deviation for a negative change of 100 mV in the level of the modulating signals? (Ans:-5kHz)

Q-1) Given a SCR that is in TO-3 package. In data sheet, Rejc is 2.5 °C/W, ReSA is 2.5 °C/W, and Recs is 1 °C/W. How much power will the SCR be able to dissipate and not exceed a junction temperature of 200°C if the ambient temperature is 40°C?

Derive the expression for ripple factor of Half Wave Rectification with a capacitor filter.

What is the graph of the FM and PM magnitude spectrum with sine modulation?

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Ce301 q4c

1)to VRMs value to generate a signal with a peak voltage of 10 V with a signal generator in a multisim program..................... must be entered. 2)) the frequency of the signal generator to produce a signal with a period of 10ms...................... must be entered as. What should come to the dotted line?

QUESTION 2 a. In a full wave rectification, average DC current, RMS value of Current, DC power output and AC power input are very important parameters. Derive the expressions for them. b. Explain why the BC junction of an NPN transistor is reversed biased? c. Draw the circuit of inductor filter and explain its operation.

(c) Figure Q(c) shows the electron mobility in a semiconductor with different dopant concentrations as a function of temperature. Explain the scattering mechanisms in the semiconductor that responsible for such results. 10000 N -tos 1000 100 10 70 100 S00 Temperature (K) Figure Q(c) Electron Drift Mobility(cm Vls)

2. Determine the peak phase deviation and modulation index for a PM modulator with a deviation sensitivity K = 2.5 rad/V and a modulating signal v(t) = 2 cos (212000t). %3D

Draw a block diagram of a PM demodulator using frequency discriminator method.

Find the average value of a half-wave rectified signal with a peak value of 20 mV.

A 1-MHz carrier with an amplitude of 1 volt peak is modulated by a 1-kHz signal with m=0.5. Sketch the voltage spectrum. An additional 2-kHz signal modulates the carrier with m = 0.2. Sketch the voltage spectrum.

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1 Can we generate FM signal using PM modulator? * Yes No

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Q: Explain in details with all figures and equations the modulation index of Amplitude Modulation (AM) and then show the AM wave when the modulation index > 1 , modulation index < 1 and modulation index =1.choose the best case and why.1-draw the three cases.2-write an example.