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For Long distance radio broadcasting use...

For Long distance radio broadcasting uses

A

ground wave propagation

B

direct wave

C

ionospheric wave

D

space wave

Text Solution

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The correct Answer is:
C
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BINA LIBRARY-COMMUNICATION SYSTEM -EXERCISE
  1. A radio can turn to any station in 7.5HZ TO 12MZband . What is the cor...

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  2. The maximum peak volatage of an AM wave is 20 mV . If the modulating i...

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  3. Find the length of a dipole antenna at frequency 10KHZ.

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  4. what should be the height of a transmitting antenna if TV telecast is ...

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  5. How many telephone channels each allotted to a band width of 8HZ can b...

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  6. calculate the length of half wave dipole antenna a) 30MHz b)300MHz c...

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  7. A TV tower has a height of 100m how much population is covered by the ...

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  8. What is an optically rarer medium?

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  9. The process of superimposing signal frequency on carrier wave is known...

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  10. The purpose of oscillator in AM transmitter is to

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  11. The electromagnetic waves of frquency range 2MHz to 30MHz are in

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  12. Radio waves of constant amplitude can be generated with

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  13. In which frequency range space waves are normally propagated ?

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  14. For Long distance radio broadcasting uses

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  15. The radio waves of frquency 300MHz to 3000MHz belong t

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  16. For televsion broadcasting the frequency employed is normally in the r...

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  17. Radio frequency alloted for commercial FM radio broadcast is in the ra...

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  18. The length of a half wave dipole antenna at 30MHz is

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  19. wave length of a wave of frequency 10KHz is

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  20. satellite transponders used for

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