Which of the following statements are true regarding the eye diagram in the communication system?
a) An eye diagram is used to investigate Intersymbol interference.
b) The width of the eye-opening indicates an interval where the wave can be sampled without ISI.
c) Eye diagram is observed in Digital storage oscilloscope.
1
Only a and c
2
a, b and c
3
Only a and b
4
Only b and c