An AM modulator has output x c (t) = 40 cos [20(200)t] + 5 cos[2(180)t] + 5
Question:
An AM modulator has output
xc (t) = 40 cos [20π(200)t] + 5 cos[2π(180)t] + 5 cos[2π(220)t]
Determine the modulation index and the efficiency.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 62% (8 reviews)
The modulator output x c t 40 cos 20 200 t 5 cos 2 180 t 5 cos 2 220 t can be written ...View the full answer
Answered By
Rinki Devi
Professional, Experienced, and Expert tutor who will provide speedy and to-the-point solutions.
Hi there! Are you looking for a committed, reliable, and enthusiastic tutor? Well, teaching and learning are more of a second nature to me, having been raised by parents who are both teachers. I have done plenty of studying and lots of learning on many exciting and challenging topics. All these experiences have influenced my decision to take on the teaching role in various capacities. As a tutor, I am looking forward to getting to understand your needs and helping you achieve your academic goals. I'm highly flexible and contactable. I am available to work on short notice since I only prefer to work with very small and select groups of students.
I have been teaching students for 5 years now in different subjects and it's truly been one of the most rewarding experiences of my life. I have also done one-to-one tutoring with 100+ students and helped them achieve great subject knowledge.
5.00+
2+ Reviews
10+ Question Solved
Related Book For
Principles of Communications Systems, Modulation and Noise
ISBN: 978-8126556793
7th edition
Authors: Rodger E. Ziemer, William H. Tranter
Question Posted:
Students also viewed these Physics questions
-
The spectrum of a voice signal m (t) is zero outside the interval a < | | < b . To ensure communication privacy, this signal is applied to a scramble that consists of the following cascade of...
-
Figure shown the circuit diagram of a balanced modulator, the input applied to the top AM modulator is m (t), where as that applied to the lower AM modulator is m (t); these two modulators have the...
-
An FM modulator has output where f d = 20 Hz/V. Assume that m(t) is the rectangular pulse m(t) = 4II [1/8(t - 4)] (a) Sketch the phase deviation in radians. (b) Sketch the frequency deviation in...
-
Q1. A 10-kg uniform rod ABC is connected to two collars of negligible mass which slide on horizontal, frictionless rods located in the same vertical plane. If a force P of magnitude 50 N is applied...
-
An article in the Wall Street Journal discussing the Federal Reserve's monetary policy included the following observation: "Fed officials have been signaling since last year that they expected to...
-
Air in the boundary layer a. changes from laminar to turbulent at low Reynolds numbers. b. separates from the wing when its velocity is maximum. c. reverses flow direction when stall occurs. d. None...
-
The following table presents the number of grams of protein and the number of calories per 100 grams for each of 18 fast-food products. a. Compute the least-squares regression line for predicting...
-
Answer the following questions. a. Which department is responsible for initiating the purchase of materials? b. What is the name of the document generated by the department identified in (a) above?...
-
2. (40 pts) The Howard County Hospital is assessing its Emergency Department (ED) capacity so it knows how to expand as the county population grows. The hospital has the following information about...
-
Kofi Allon, who is 32 years old and single, is employed as a technical consultant for a large electronics distributor. He lives at 678 Birch Street, LaMesa, CA 91941. Kofi's Social Security number is...
-
An AM modulator has output x c (t) = A cos[2(200)t] + B cos[2(180)t] +B cos[2(220)t] The carrier power is P 0 and the efficiency is E ff . Derive an expression for E ff in terms of P 0 , A, and B....
-
Rework Problem 3.8 for the message signal m(t) = 9 cos(20t) + 8 cos(60t) Data from Problem 3.8 (a) Write the equation for m n (t), the normalized signal with a minimum value of -1. (b) Determine {m 2...
-
For what types of fluids and flows is the viscous dissipation term in the energy equation likely to be significant?
-
Explain the significance of the Helmholtz free energy and its application in determining the equilibrium conditions of chemical systems ?
-
1. For each of the following sequences defined as a recurrence relations, List the first five terms of the sequence. Find a formula for the general term an in terms of n. 2, an+1 = an + 2n for n 1 a....
-
At what price can you buy a bond of Face Value Rs 50000 of coupon 10% maturing after 5 years giving a return of 12%? What is parallel and unparallel shift in the yield curve?
-
What are the key principles underlying the theory of thermodynamic potentials, and how do they facilitate the analysis of different types of thermodynamic systems and processes ?
-
What are two main criteria for setting goals? What is the danger of setting goals that are not realistic
-
Fifteen mid-western and mountain states have united in an effort to promote and forecast tourism. One aspect of their work has been related to the dollar amount spent per year on domestic travel...
-
l ask this second time correnct answer is 38,01 can we look pls Consider a non-conducting rod of length 8.8 m having a uniform charge density 4.5 nC/m. Find the electric potential at P, a...
-
A 10 MHz uniform plane wave having an initial average power density of 5 W/m 2 is normally incident from free space onto the surface of a lossy material in which " 2 /' 2 = 0.05, ' r2 = 5, and 2 = ...
-
The region z < 0 is characterized by ' r = r = 1 and r = 0. The total E field here is given as the sum of two uniform plane waves, E s = 150 e j10z a x + (50 20) e j10z a x V/m. (a) What is the...
-
In the beam-steering prism of Example 12.8, suppose the antireflective coatings are removed, leaving bare glass-to-air interfaces. Calcluate the ratio of the prism output power to the input power,...
-
Discuss how data deduplication works in backup systems and its impact on storage efficiency. What are some potential drawbacks of deduplication, and how might they be mitigated ?
-
Describe the importance of application consistency in backup operations. How do modern backup systems ensure consistency, and what are the risks of a quiescence failure ?
-
X1155: Throwing an Exception The method below takes in a String parameter representing a username. It should throw an Exception if the username is less than 3 characters long. The method correctly...
Study smarter with the SolutionInn App