| Instructions |
The following items will test your understanding of the material covered in this lesson. There is only one correct answer for each item. When you have completed the exercise, check your answers with the answer key that follows. If you answer any item incorrectly, review that part of the lesson which contains the portion involved. |
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| 1. |
1.Which statement describes antenna theory?
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| 2. |
A current flows in an antenna with ________________ that varies with the applied voltage.
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| 3. |
The amount of energy propagated by an antenna in a certain direction, compared to the energy propagated by that antenna if it were not directional, is called what?
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| 4. |
A quarter-wave antenna erected vertically, with its lower half connected to the ground, operates like what?
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| 5. |
Treating soil with salt will enhance what?
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| 6. |
A counterpoise does which of the following?
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| 7. |
Which radiation pattern does a whip antenna normally have?
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| 8. |
A signal team must construct a half-wave long-wire antenna for use with its AM radio, operating at a frequency of 10 MHz. How long must the antenna be?
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| 9. |
What is the orientation of a radio wave's electric field in relation to the Earth?
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