Antenna Construction and Metal Conductors
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Questions and Answers

What type of metal conductor is the best for antennas?

  • Gold (correct)
  • Copper
  • Steel
  • Aluminum

Which metal does not provide the degree of conductivity necessary to satisfy communications needs?

  • Copper
  • Gold
  • Aluminum (correct)
  • Steel

What is the range of frequencies over which an antenna is designed to operate efficiently called?

  • Bandwidth (correct)
  • Resistance
  • Amplitude
  • Conductivity

Which metal conducts electromagnetic energy but may weaken the signal too much as the energy travels along it?

<p>Steel (B)</p> Signup and view all the answers

What does a resistor do?

<p>Restricts or stops the flow of electrons (A)</p> Signup and view all the answers

Which metal provides an excellent, relatively inexpensive conductor for most antenna applications?

<p>Copper (A)</p> Signup and view all the answers

What determines the effectiveness of an antenna in transmitting or receiving radio waves?

<p>The polarization of the radio waves (B)</p> Signup and view all the answers

What is the function of a rubber insulator around a wire?

<p>To act as a resistor (D)</p> Signup and view all the answers

What does the width of an antenna lobe determine?

<p>The beamwidth of the antenna (C)</p> Signup and view all the answers

What is the purpose of a broadband antenna, such as a television antenna?

<p>To operate over a wide range of frequencies (A)</p> Signup and view all the answers

What does a transmission line do in an antenna system?

<p>Connects the antenna to the operations building (A)</p> Signup and view all the answers

What is a transducer designed to do in relation to electromagnetic energy?

<p>Convert electrical energy into electromagnetic energy or vice versa (B)</p> Signup and view all the answers

What is the main purpose of an antenna system?

<p>To radiate or receive electromagnetic energy (B)</p> Signup and view all the answers

What happens to the strength of the radio wave when traveling from a transmitting antenna to a receiving antenna?

<p>It gets attenuated or weakened (A)</p> Signup and view all the answers

What is the role of an antenna array?

<p>Radiating or receiving electromagnetic energy (C)</p> Signup and view all the answers

What determines the dimensions of a transmitting antenna?

<p>The frequencies used for transmission (D)</p> Signup and view all the answers

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