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| The physical size, construction details, and appearance of an antenna primarily depend on |
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| What should you do if you are in a room beside an electrical outlet with degraded communications? |
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Definition
| Move the radio to another location in the same room |
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| The more efficient an antenna is for transmitting, the more efficient it will be for receiving. What antenna characteristic does this describe? |
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Term
| The radio ground-wave component affected by the conductivity and dielectric constant of the Earth is called |
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| The zone where no usable signal is received from a given transmitting antenna is called |
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Term
| How many distinct layers make up the ionosphere? |
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Term
| Which radio frequency (RF) range uses the ground wave for communication over great distances? |
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Term
| Which radio frequency (RF) range uses the ground wave for communication from 15 to 400 miles and the sky wave for reception at distances up to 8,000 miles? |
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Term
| Which radio frequency (RF) range uses little ground wave for communications with only slight refraction of the sky waves? |
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Term
| If the lines of electric force are parallel to the surface of the Earth, the radio wave is polarized |
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Term
| Which type of antenna is least likely to pick up man-made interference? |
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Term
| Earth ground is a good conductor for which type of radio frequency (RF)? |
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Term
| When properly repairing a solid core whip antenna, do not overlap the broken ends by more than a few inches because you can degrade the antennas |
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Definition
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Term
| What determines the angle of radiation required for both transmitting and receiving antennas? |
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Definition
| Distance between stations |
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Term
| By using a high gain antenna at transmitter and receiver sites, you reduce |
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Term
| What type of injury can you get from high levels of radio frequency (RF) energy sent from an antenna? |
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Term
| What type of equipment is used with the whip antenna? |
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Definition
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Term
| How does a vehicle affect the operation of a mounted whip antenna? |
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Term
| For best results, at least how many feet above the ground should you place the ends of the inverted Vee antenna? |
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Term
| Use the near vertical incidence sky wave (NVIS) antenna within megahertz (MHz) frequencies of |
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Term
| What is the most commonly used field expediently constructed antenna? |
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Term
| Which field expedient antenna is equipped with a quarter-wave vertical section and a half-wave horizontal section? |
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Term
| When terminated, what is the directivity of the long wire antenna? |
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Term
| Where on the Vee antenna would you find the maximum radiation pattern? |
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Definition
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Term
| What is the directivity of the Vee antenna? |
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