2. A microwave system requires a +10 dBm audio level to provide100% modulation. Determine the voltage level required toproduce a +10 dBm level.E NotesComments77°F ClearLIFEDigital

microwave system requires a +10 dBm. Determine the voltage level required to produce a +10 dBm level

Answered: 2. A microwave system requires a +10…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Problem 2 In a DSB-SC system, the carrier frequency is 5 kHz and the message signal is given by m(t) 2cos1000nt + sin2000nt. Find and sketch the spectra of the message signal and modulated signal. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal. Determine the average power in the message signal as well as in each frequency component of the modulated signal. Problem 3 The modulating signal m(t) = cos1000nt cos3000nt is multiplied by the carrier c(t) = cos(2nfct), where f. = 5 kHz. Determine and sketch the spectra of the modulating and modulated signals. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal.
2. You have a modem that can operate at a symbol rate of 9,600. Design a modulation system to allow the modem to transmit at a data rate of 76,800 bps. Specifically, you need to indicate how many amplitude levels and phase levels this modem must be able to generate. (Your design should vary both the amplitude and the phase of the carrier wave signal.) a) Required total alternative signal states: b) Amplitude levels: c) Phase levels:
You are provided with a 2-line-to-4-line decoder where A0 (LSB) and A1 (MSB). Using the required number of decoders and no other components. Design a 4-line-to-16-line decoder
answer asap
b
10. Draw constellation diagrams for a. 16-PSK b. 16-QAM with at least two amplitudes.
QUESTION 28 An engineer has designed transmission equipment to transmit 7200 symbols per second while encoding 8 bits per symbol. If the signal to noise ratio is 400:1 and the channel bandwidth is 3625 Hz, has the engineer's design exceeded theoretical limits? O Yes, both the limit on symbol rate and the limit on bits per symbol have been exceeded. O Yes, but only the limit on symbol rate has been exceeded. O Yes, but only the limit on bits per symbol has been exceeded. O No, none of the theoretical limits have been exceeded.
1. If the period of a PWM signal is 250 counts and the pulse width is 38 counts, what is the duty cycle?

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2. A microwave system requires a +10 dBm audio level to provide 100% modulation. Determine the voltage level required to produce a +10 dBm level.