. A bandwidth of 20 MHz is to be considered for the transmission of AM signals.If the highest audio frequencies used to modulate the carriers are not to exceed 3 kHZ, Bmany station could broadcast within this band simultaneously without interfering with oneanother?

Modulation is process by which some properties of carrier signal is varied according to modulating…

Answered: A bandwidth of 20 MHz is to be…

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...

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4. What determines the bandwidth of emission for an AM transmission?
When the modulation percentage is 75, an AM transmitter produces 10 kW. How much of this is carrier power? What would be the percentage power saving if the carrier and one of the sidebands were suppressed before transmission took place?
1. A 1500-kHz carrier and kHz intelligence signal are combined in a nonlin-ear device. List all the frequency components produced. *2. If a 1500-kHz radio wave is modulated by a 2-kHz sine-wave tone, what frequencies are contained in the modulated wave (the actual AM signal)? *3. If a carrier is amplitude-modulated, what causes the sideband frequencies? *4. What determines the bandwidth of emission for an AM transmission? *10. What are some of the possible results of overmodulation? *11. An unmodulated carrier is 300 V p-p. Calculate %m when its maximum p-p value reaches 400, 500, and 600 V. (33.3%, 66.7%, 100%) 12. If V and V as shown in Figure 8, determine %m. (53.85%) 13. Determine and from Problem 12. ( Vpk, Vpk)
What is the effective radiated power (ERP) of a repeater with 450 W transmitting power output, 4 dB feedline loss, 6 dB duplexer loss, 7 dB circulator loss, and feedline antenna gain of 25 dB?
A spectrum analyzer is used to measure the magnitude of a certain signal with respect to its frequency. Suppose the equipment shows a carrier at 12 dBm, with the two sidebands 8 dB below the carrier, what is the percent depth of modulation of the signal? (Blank 1)Blank 1 = ________?
Wirless communication Determine the carrier-to-noise density ratio for a receiver with a 70 dBW input carrier power,an equivalent noise temperature of 180 K, and a bandwidth of 20 MHz.
If the signal propagation speed in a twin lead cable is equal to the speed of light in a vacuum, and in a coaxial cable it is equal to 2/3 of the speed of light in a vacuum, with the speed of light in vacuum assumed to be c = 300,000 km/s, how many wavelengths at the carrier frequency does each of the two cables contain if they are both 200 m long?
A 162-MHz carrier is deviated by 32 kHz by a 2-kHz modulating signal. What is the modulation index? Round the final answer to the nearest whole number.
In a certain cell of a cellular mobile communication system, the serving base station is located 4 Km from the mobile station. The base station and the mobile station antennas have gains of Gt=30 and Gr=20, respectively. The transmitted power from the base station is 100W with carrier frequency of 910 MHz. Assume free space propagation model, the received signal power in dB at the mobile station is approximately -56 dB -62 dB -36 dB -76 dB
With a maximum frequency deviation of 75 kHz, what is the maximum phase deviation that can bepresent in an FM radio broadcast signal, assuming it transmits a baseband frequency of 50 Hz to 20kHz?
Explain the concept of bandwidth and its significance in choosing a transmission medium.
A 162-MHz carrier is deviated by 12 kHz by a 2-kHz modulating signal. What is the modulation index?

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A bandwidth of 20 MHz is to be considered for the transmission of AM signa If the highest audio frequencies used to modulate the carriers are not to exceed 3 kHz, bO many station could broadcast within this band simultaneously without interfering with oe another?