1. If a point source of radio waves transmits 1 watt, what is the power density 20,000 meters from the source? 2. If a radio receiver needs 2 nW/m² of power density to function, how far away from a 1-watt point source will it continue to work? 3. In microwave communications systems, for a carrier frequency of 6GHz and a distance of 40 km, determine the free space path loss in dB. 4. What is the path attenuation between the transmitter and receiver at a frequency of 600 MHz and a distance of 20Km if the input power is 28KW? 5. Given a 28 mi path with average terrain but with some roughness in an inland temperate climate, and a link operating at a frequency of 6.2GHz with a desired propagation reliability of 99.95%, what fade margin should be assigned to the link?

1. If a point source of radio waves transmits 1 watt, what is the power density 20,000 meters from the source? 2. If a radio receiver needs 2 nW/m² of power density to function, how far away from a 1-watt point source will it continue to work? 3. In microwave communications systems, for a carrier frequency of 6GHz and a distance of 40 km, determine the free space path loss in dB. 4. What is the path attenuation between the transmitter and receiver at a frequency of 600 MHz and a distance of 20Km if the input power is 28KW? 5. Given a 28 mi path with average terrain but with some roughness in an inland temperate climate, and a link operating at a frequency of 6.2GHz with a desired propagation reliability of 99.95%, what fade margin should be assigned to the link?

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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