Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 12
- 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
36.
If the plate supply voltage for a plate modulated class C amplifier is E, the maximum plate cathode voltage could be almost as high as
37.
If the carrier of a 100 percent modulated AM wave is suppressed, the percentage power saving will be
50
100
150
38.
The characteristics of H and V sync pulses in a colour TV receiver are
- H sync, pulses are narrow and have frequency of 15625 Hz
- V sync, pulses are much wider and have frequency of 50 Hz
- H and V pulses have almost the same size but frequencies of 15625 and 50 Hz respectively
- V sync, pulses are very narrow but H sync, pulses are wide and their frequencies are 15625 Hz and 50 Hz respectively
39.
Bandwidth for practical PCM system is (where n is no. of channels, N length of PCM codes)
40.
Circuit switching, Message switching and Packet Switching Network belong to which of the following systems?
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