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Sky Wave Propagation...

Sky Wave Propagation

A

1 MHz to 2 MHz

B

5 MHz to 25 MHz

C

35 MHz to 40 MHz

D

45 MHz to 50 MHz

Text Solution

Verified by Experts

The correct Answer is:
B
Sky wave propagation is suitable for frequency range 5 MHz to 25 MHz .
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DISHA PUBLICATION-COMMUNICATION SYSTEM -EXERCISE-2 : Concept Applicator
  1. Sky Wave Propagation

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  2. Given the electric field of a complete amplitude modulated wave as ...

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  3. Sinusoidal carrier voltage of frequency 1.5 MHz and amplitude 50 V ...

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  4. Television signal on earth cannot be recevied at distances greater th...

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  5. When radio waves passes through ionosphere, phase difference between s...

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  6. The electron density of a layer of ionosphere at a height 150 km from ...

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  7. In optical communication system operating at 1200nm, only 2% of the so...

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  8. A radiostation has two channels. One is AM at 1020 kHz and the other F...

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  9. Antennas are used to receive and transmit

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  10. An AM wave is expressed as e=10(1+0.6cos2000pit)cos2xx10^(8)pit "volts...

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  11. Calculate the power developed by an amplitude modulated wave in a load...

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  12. 12 signals each band limited to 5 kHz are to be transmitted by frequen...

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  13. In a radar system, peak transmitted power is increased a factor of 81 ...

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  14. A carrier frequency of 10kV at 1 MHz is amplitude modulated by a 1 kHz...

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  15. A 1000 kHz carrrier is simultaneously modulated with 300Hz, 800Hz and ...

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  16. A 10 kW carrier is sinusoidally modulated by two carriers correspondin...

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  17. An FM signal has a resting frequency of 105MHz and highest frequency o...

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  18. A super heterodyne receiver is designed to receive transmitted signals...

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  19. Consider the following amplitude modulated (AM) signal, where fm lt B ...

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  20. An AM - signal is given as x(AM) (t) = 100[ p (t) + 0.5g (t) ] cos o...

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  21. A device with input x (t) and output y ( t) is characterized by : y(...

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