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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 17
6.
The number of repeaters in a coaxial cable link depends on
system bandwidth
separation of equalizers
the number of coaxial cables in the tube
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The overall noise temperature Te, absolute temperature T and noise figure F are related as
Te = T(F - 1)
Te = F(T - 1)
T = Te(F - 1)
Te = (T)(F)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
In binary data transmission DPSK is preferred to PSK because
a coherent carrier is not required to the generated at the receiver
for a given energy per bit, the probability for zero is less
the 180° phase shifts of the carrier
more protection is provided against impulse noise
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A basic group B
consists of five super groups
has a frequency range of 60 to 108 kHz
consists of erect channels only
is formed at group translating equipment
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
By the use of which of the following the PPM can be converted to PWM?
A stable multivibrator
Integrator
Monostable multivibrator
Bistable Multivibrator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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