ECE 13_Quiz no.1_Intersem_SY 2024-2025
Authored by Jenadel Antipolo
Engineering
University
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5 questions
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1.
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1 min • 2 pts
1. What is the effective radiated power in of a repeater with 200 W transmitter power output, 4dB feed line loss, 4dB duplexer and circulator loss, and 10 dB feed line antenna gain?
2.
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1 min • 2 pts
2. Determine the maximum distance between the identical antennas equidistant 50 m above sea level.
2. Determine the maximum distance between the identical antennas equidistant 50 m above sea level.
3.
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1 min • 1 pt
3. The MUF for a transmitting station is 34 MHz and the required angle of incidence for propagation to a desired destination is 70 degrees, what is the critical frequency?
3. The MUF for a transmitting station is 34 MHz and the required angle of incidence for propagation to a desired destination is 70 degrees, what is the critical frequency?
4.
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1 min • 1 pt
4. A cellular radio transmitter has a power output of 3W at 800MHz. It uses an antenna with a gain of 3dBi. The receiver is 5km away, with an antenna gain of 12dBi. Calculate the free-space path loss.
4. A cellular radio transmitter has a power output of 3W at 800MHz. It uses an antenna with a gain of 3dBi. The receiver is 5km away, with an antenna gain of 12dBi. Calculate the free-space path loss.
5.
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1 min • 1 pt
5. What power density is required to produce electric field strength of 100 volts per meter in air?
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