One of the key factors that drives the design of a satellite based personal communication system is the size and allowable power of the handset transmitter. If the handset is limited to a three-quarter watt (0.75W) transmitter, and has an antenna with a gain of only 1.5 dB, what is the maximum range over which we can close the uplink with an acceptable margin (10 dB)? Givens: a) satellite antenna diameter of 1.0 meter (.65 efficiency), b) transmitter frequency 900 MHz, c) bandwidth 150 KHz, and d) noise temperature 500K.
One of the key factors that drives the design of a satellite based personal communication system is the size and allowable power of the handset transmitter. If the handset is limited to a three-quarter watt (0.75W) transmitter, and has an antenna with a gain of only 1.5 dB, what is the maximum range over which we can close the uplink with an acceptable margin (10 dB)? Givens: a) satellite antenna diameter of 1.0 meter (.65 efficiency), b) transmitter frequency 900 MHz, c) bandwidth 150 KHz, and d) noise temperature 500K.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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4. One of the key factors that drives the design of a satellite based personal communication system is the size and allowable power of the handset transmitter. If the handset is limited to a three-quarter watt (0.75W) transmitter, and has an antenna with a gain of only 1.5 dB, what is the maximum range over which we can close the uplink with an acceptable margin (10 dB)? Givens:
a) satellite antenna diameter of 1.0 meter (.65 efficiency),
b) transmitter frequency 900 MHz,
c) bandwidth 150 KHz, and
d) noise temperature 500K.
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