A mobile located 5km from a base-station is usingan antenna with 2.55dBi gain to receive cellularradio signals. If the base-station is transmitting20mW at 900MHZ using a unity gain antenna, findthe received signal power using the 2-rays model.The height of the base-station is 50m and themobile is 1.5m above the ground. Repeat theproblem for 1800MHZ fequency

Communication systems play a major role in connecting peoples, The transmitter is a device where…

Answered: A mobile located 5km from a…

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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Similar questions

Consider a 10W power transmitter and a 30dB transmission antenna, the EIRP value will be: Select one or more than one: a. The value of the EIRP is: 10000watt b. The EIRP value is :50dBW c. The EIRP value is: 200 Watt d. The EIRP value is: 40dBw
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.
(6) Without modulation, the carrier power in an AM transmitter is 5 KW. This carrier is modulated by a sinusoidal signal. If the percentage of modulation is reduced from a 50% maximum percentage of modulation to 40%, what will be the maximum power in KWatts of the unmodulated carrier that can be used without overloading the transmitter?
Derive the frequency reuse factor for a triangular cell
The power of operating frequency in AM station is 145 W, and there is 89% modulation depth. (assuming single side band suppressed carrier). What is the power of the side bands?
Explain through equations what happen if there is a phase error θc between the transmitted QPSK signal and local (replica) carrier signals in coherent QPSKdemodulator. Then what happen if θc=90o
Calculate the frequency deviation and the carrier swing of a frequency- modulated wave which was produced by modulating a 50.4 MHz carrier. The highest frequency reached by the FM wave is 50.415 MHz. Then calculate the lowest frequency reached by the FM wave. If the frequency of the modulating signal is 5 KHz, what is the bandwidth of the FM wave?
A carrier wave of 1 GHz and amplitude 3 V is frequency modulated by a sinusoidal modulating signal frequency of 500 Hz and of peak amplitude of 1 V. The frequency deviation is 1 kHz. The peak level of the modulating wave form is changed to 5 V and the modulating frequency is changed to 2 kHz. The expression for the new modulated wave from is
Q3: A sinusoidally modulated AM waveform is shown below, Determine: 1. Peak amplitude of the upper and lower side frequencies. 2. Peak amplitude of the unmodulated carrier. 3. The modulation index and it is percentage. 4. The total power and the power efficiency. 5. Plot the frequency and the power spectrum of the modulated signal if the frequency of the carrier and the modulating signal are 2MHz and 15KHz respectively. 12 6 0 -6 -12 T
H.W A carrier signal given by 10cos27×108t volt is FM modulatedby single tone message 4cos2nx103t voltif the modulation constantis 1000 HzlVolt a) Compute max. frequency deviation and deviation ratio. b) Write the equation of modulatedwave. c) Sketch the spectrum. d) Calculate sidebands carrierand total power.
-Stiggle Ex Agiven FM transmitter is modulated with a Sinusoid-The output for no modulation is (loow) in to a Son resistive load. If the Power Provided for first side band is made zero find. a) carrier Power b) all side bands Power c) average Power is second order side band
A 75 MHz carrier having an amplitude of 50 V is modulated by a 3 kHz audio signal that has an amplitude of 20 V. a. Sketch the audio signal. b. Sketch the carrier. c. Construct the modulated wave. For a, b and c - label your diagram d. Determine the modulation factor. e. What frequencies would show up in a spectrum analysis of the modulated wave? f. Write trigonometric equations for the carrier and the modulating waves. Kindly answer a-f. Please have mercy. Thanks!

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