Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 6
- Communication Systems - Section 13
- Communication Systems - Section 25
- Communication Systems - Section 24
- Communication Systems - Section 23
- Communication Systems - Section 22
- Communication Systems - Section 21
- Communication Systems - Section 20
- Communication Systems - Section 19
- Communication Systems - Section 18
- Communication Systems - Section 17
- Communication Systems - Section 16
- Communication Systems - Section 15
- Communication Systems - Section 14
- Communication Systems - Section 1
- Communication Systems - Section 12
- Communication Systems - Section 11
- Communication Systems - Section 10
- Communication Systems - Section 9
- Communication Systems - Section 8
- Communication Systems - Section 7
- Communication Systems - Section 6
- Communication Systems - Section 5
- Communication Systems - Section 4
- Communication Systems - Section 3
- Communication Systems - Section 2
26.
The name modem is a contraction of terms modulator demodulator.
Answer: Option
Explanation:
Baudot code is 5 bit code.
27.
The use of SSB
Answer: Option
Explanation:
One side band is eliminated in SSB.
Therefore bandwidth is halved.
28.
If a signal voltage Vs is accompanied by a noise voltage Vn the signal to noise ratio is
Answer: Option
Explanation:
Power is proportional to V2.
29.
Video signals are transmitted through
Answer: Option
Explanation:
Because of large bandwidth requirement, modulation of video signals is possible only by amplitude modulation.
30.
A TV receiver has 20 kV EHT supply and total beam current (for 3 electron guns) of 1500 μA. The power handled by IHVT is
Answer: Option
Explanation:
P = 20 x 103 x 1500 x 10-6 = 30 W.
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