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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 23
46.
For a given data rate, the bandwidth βp of a BPSK signal and the bandwidth β0 of the OOK signal are related as
βp = 2β0
βp = β0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
A direct radiating cone type loudspeaker attenuates :
medium range frequencies
very low frequencies
high frequencies
very low and high frequencies
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The advantage of pulse modulation is
the transmitted power can be concentrated into short bursts
the time intervals between pulses can be filled with sample values from other message
pulse wave may obtain appreciable D.C. and low frequency content
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Sparking affects amplitude modulation.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
For low impedance SAW filter the most suitable material for substrate of SAW filter is
PZT ceramics
ZnO
Lithium titanate
Lithium neobate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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