Vol2 Ure2 CDC 3D153

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1. (214) The abbreviation FOT is derived from the term?
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CDC Quizzes & Trivia

This is a URE #2 for CDC 3D153 and is to be used as a study aid for the RF transmission systems CDC's.

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2. (214) In high frequency (HF) communications, the lowest frequency that arrives at the distant receiver on 90 percent of the undisturbed days of the month is called the?
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3. (213) Radio waves that travel near the earth's surface are called
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4. (215) Sunspots are disturbances?
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5. (216) What U.S. government agency divides the radio frequency (RF) spectrum into different bands?
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6. (219) Super high frequency (SHF)/extremely high frequency (EHF) range is limited to?
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7. (214) Which gives sky wave propagation its ability to communicate beyond the optical line-ofsight (LOS)?
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8. (213) Sky wave transmission is used for which type of communications?
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9. (214) Frequencies higher than the critical frequency are?
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10. (220) In a move to overcome the limited range of forward propagation by tropospheric scatter (FPTS) without requiring many costly relay systems, what was developed?
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11. (214) Which gives sky wave propagation its ability to communicate beyond the optical line-of sight (LOS)?
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12. (216) For communications purposes, the usable frequency spectrum ranges from?
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13. (215) What is the recombination process dependent upon?
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14. (220) A radio wave originated at a center source in free space. If the field strength at one mile from the source has a field strength of 100 microvolts per meter, what is the field strength at two miles?
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15. (214) Magneton splitting creates two waves called?
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16. (215) Which layer of the ionosphere is most important to high frequency (HF) communications?
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17. (217) What frequency bands doe the MILSTAR satellite system use?
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18. (217) What frequency band is most susceptible to jamming?
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19. (213) Direct waves are radio waves that travel
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20. (215) During what season do we have the wider range of critical frequencies and less absorption of all frequencies?
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21. (218) The main very high frequency (VHF) Ultra high frequency (UHF) communications emphasis is on?
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22. (214) What occurs when a transmitted signal travels over two or more separate paths during transmission?
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23. (217) Near-vertical-incidence sky (NVIS) wave operations are most effective when you're using?
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24. (220) When comparing the radio and optical horizons, which one is farther away and by what percent?
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25. (220) When K is greater than 4/3, the radio horizon will?
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26. (220) Why isn't very high frequency (VHF) normally used for satellite communications?
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(214) The abbreviation FOT is derived from the term?
(214) In high frequency (HF) communications, the lowest frequency that...
(213) Radio waves that travel near the earth's surface are called
(215) Sunspots are disturbances?
(216) What U.S. government agency divides the radio frequency (RF)...
(219) Super high frequency (SHF)/extremely high frequency (EHF) range...
(214) Which gives sky wave propagation its ability to communicate...
(213) Sky wave transmission is used for which type of communications?
(214) Frequencies higher than the critical frequency are?
(220) In a move to overcome the limited range of forward propagation...
(214) Which gives sky wave propagation its ability to communicate...
(216) For communications purposes, the usable frequency spectrum...
(215) What is the recombination process dependent upon?
(220) A radio wave originated at a center source in free space. If the...
(214) Magneton splitting creates two waves called?
(215) Which layer of the ionosphere is most important to high...
(217) What frequency bands doe the MILSTAR satellite system use?
(217) What frequency band is most susceptible to jamming?
(213) Direct waves are radio waves that travel
(215) During what season do we have the wider range of critical...
(218) The main very high frequency (VHF) Ultra high frequency (UHF)...
(214) What occurs when a transmitted signal travels over two or more...
(217) Near-vertical-incidence sky (NVIS) wave operations are most...
(220) When comparing the radio and optical horizons, which one is...
(220) When K is greater than 4/3, the radio horizon will?
(220) Why isn't very high frequency (VHF) normally used for satellite...
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