(a) In a satellite communication, the power delivered to a matched receiver, P, is given by the Friis equation: PR(dBm) = Pr(dBm) + Gp(dB) + Gr(dB) – 20log where Pg is the received power, Pr is the transmitter power, Gy is the transmitter gain and Gg is the receiver gain, r is the distance between the transmitter and receiver antennas and . is the wavelength. If the nominal transmitter output power is 100 Watts for a DIRECTV DBS and the transmitting antenna gain is 31 dB, evaluate the received signal power if the 40 cm diameter receiving dish has a nominal gain of 30 dB. Assume that the operating frequeney is 13 GHz, the range between the transmitting and receiving antennas is 35,786 km, and the receiving antenna is directly below the satellite.
(a) In a satellite communication, the power delivered to a matched receiver, P, is given by the Friis equation: PR(dBm) = Pr(dBm) + Gp(dB) + Gr(dB) – 20log where Pg is the received power, Pr is the transmitter power, Gy is the transmitter gain and Gg is the receiver gain, r is the distance between the transmitter and receiver antennas and . is the wavelength. If the nominal transmitter output power is 100 Watts for a DIRECTV DBS and the transmitting antenna gain is 31 dB, evaluate the received signal power if the 40 cm diameter receiving dish has a nominal gain of 30 dB. Assume that the operating frequeney is 13 GHz, the range between the transmitting and receiving antennas is 35,786 km, and the receiving antenna is directly below the satellite.
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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