Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
0. Six hundred voice channels, each having a bandwidth of 4 kHz, arc multiplexed using USSB subcarrier modulation and the multiplexed signal frequency modulates a carrier. The lowest SSB carrier frequency is 10 kHz and the subcarriers are spaced 4 kHz apart. Assume that each voice signal has the same average power. The channel at 10 kHz has an output signal-to-noise ratio of 60 dB. (a) If (S/N), <30 dB is not acceptable, how many channels in the system are usable? (Assume white noise at the FM receiver input.) (b) If the FDM signal phase modulates the carrier, calculate (S/N), for any channel assuming that the transmitted signal power and noise psd are the same as in the FM case.

0. Six hundred voice channels, each having a bandwidth of 4 kHz, arc multiplexed using USSB subcarrier modulation and the multiplexed signal frequency modulates a carrier. The lowest SSB carrier frequency is 10 kHz and the subcarriers are spaced 4 kHz apart. Assume that each voice signal has the same average power. The channel at 10 kHz has an output signal-to-noise ratio of 60 dB. (a) If (S/N), <30 dB is not acceptable, how many channels in the system are usable? (Assume white noise at the FM receiver input.) (b) If the FDM signal phase modulates the carrier, calculate (S/N), for any channel assuming that the transmitted signal power and noise psd are the same as in the FM case.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
See similar textbooks
icon
Related questions
Question
Please answer it I need it for my exam
7.20. Six hundred voice channels, each having a bandwidth of 4 kHz, arc multiplexed using USSB subcarrier modulation and the multiplexed signal frequency modulates a carrier. The lowest SSB carrier frequency is 10 kHz and the subcarriers are spaced 4 kHz apart. Assume that each voice signal has the same average power. The channel at 10 kHz has an output signal-to-noise ratio of 60 dB. (a) If (S/N) <30 dB is not acceptable, how many channels in the system are usable? (Assume white noise at the FM receiver input.) (b) If the FDM signal phase modulates the carrier, calculate (S/N), for any channel assuming that the transmitted signal power and noise psd are the same as in the FM case.
Transcribed Image Text:7.20. Six hundred voice channels, each having a bandwidth of 4 kHz, arc multiplexed using USSB subcarrier modulation and the multiplexed signal frequency modulates a carrier. The lowest SSB carrier frequency is 10 kHz and the subcarriers are spaced 4 kHz apart. Assume that each voice signal has the same average power. The channel at 10 kHz has an output signal-to-noise ratio of 60 dB. (a) If (S/N) <30 dB is not acceptable, how many channels in the system are usable? (Assume white noise at the FM receiver input.) (b) If the FDM signal phase modulates the carrier, calculate (S/N), for any channel assuming that the transmitted signal power and noise psd are the same as in the FM case.
Expert Solution
steps

Step by step

Solved in 3 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Digital Modulation Scheme (Amplitude-Shift Keying [ASK], Phase-Shift Keying [PSK], Frequency-Shift Keying [FSK])
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS