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A satellite at an altitude of 1000km transmits a signal to a ground (b) station directly below it. The satellite transmits 80W into an antenna having a gain of 7 dBi, and the ground station's antenna has a gain of 12 dBi. The centre frequency of the transmission is 3GHZ. I. Define "Free space path loss" I. Calculate the free space path loss and the power delivered to the receiver

A satellite at an altitude of 1000km transmits a signal to a ground (b) station directly below it. The satellite transmits 80W into an antenna having a gain of 7 dBi, and the ground station's antenna has a gain of 12 dBi. The centre frequency of the transmission is 3GHZ. I. Define "Free space path loss" I. Calculate the free space path loss and the power delivered to the receiver

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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(b) A satellite at an altitude of 1000km transmits a signal to a ground station directly below it. The satellite transmits 80W into an antenna having a gain of 7 dBi, and the ground station's antenna has a gain of 12 dBi. The centre frequency of the transmission is 3GHZ. I. Define "Free space path loss" I. Calculate the free space path loss and the power delivered to the receiver (c) A 15km radio link has antenna heights of 25m and 5m respectively. This arrangement just barely receives the minimum required power. I. Determine whether it is reasonable to analyse this scenario using the general two ray propagation method. I. What must the 25m antenna height be changed to in order to achieve the minimum required power at a range of 30km. (Show clearly how you obtained your answer)
Transcribed Image Text:(b) A satellite at an altitude of 1000km transmits a signal to a ground station directly below it. The satellite transmits 80W into an antenna having a gain of 7 dBi, and the ground station's antenna has a gain of 12 dBi. The centre frequency of the transmission is 3GHZ. I. Define "Free space path loss" I. Calculate the free space path loss and the power delivered to the receiver (c) A 15km radio link has antenna heights of 25m and 5m respectively. This arrangement just barely receives the minimum required power. I. Determine whether it is reasonable to analyse this scenario using the general two ray propagation method. I. What must the 25m antenna height be changed to in order to achieve the minimum required power at a range of 30km. (Show clearly how you obtained your answer)
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