Exercise: Communication Systems

Questions for: Communication Systems

According to CCIR standards, the Vestigial Sideband (VSB)
A:
video frequencies upto 4 MHz are transmitted
B:
video frequencies upto 5 MHz are transmitted
C:
video frequencies upto 5.5 MHz are transmitted
D:
video frequencies upto 6 MHz are transmitted
Answer: B
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At FM demodulator output noise power density
A:
increases with frequency
B:
decreases with frequency
C:
remains unaltered
D:
none of the above
Answer: A
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The number of spectral component of a cosine wave is
A:
1
B:
0
C:
2
D:
4
Answer: C
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Digital television is also called
A:
High digital television
B:
High definition television
C:
High deflection television
D:
High display television
Answer: B
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The assigned carrier frequency of an FM broadcast station is 96.3 MHz. Its FM signal has a centre frequency of
A:
10 MHz
B:
455 kHz
C:
48.15 MHz
D:
96.3 MHz
Answer: D
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