University : Anna University.
Department : Electronics and Communication Engineering.
Semester : Fifth Semester.
Year : Third Year.
Subject Code : EC2307.
Subject Name : Communication Systems Laboratory.
Type : Viva Questions.
Content : Important Viva Questions -Nesan Edition.(covers repeatedly asking questions).
1)What is modulation ?
3)why we use carrier signal ?
4)what is demodulation ?
5)what is the use of frequency modulation ?
7)What is the use of CRO.
8)What is sampling?
9)what is mean by detection ?
10)Expand ASK,FSK,PSK,QPSK .
11)what is shift keying ?
12)what is the use of carrier oscillator?
13)what is preemphasis and deemphasis?
14)why we emphasis signals?
16)what is the use of Phase detector ?
17)Expand VCO ?
18)what is TDM and what is the use of this technique ?
19)what is the need of error control?
20)what we do in line coding ?
21)what is the use of multi output power supply?
22)Expand NRZ,RZ,NRZI .
23)what is the use of manchester coding ?
24)what is power spectra?
25)what is the use of MATLAB?
nesan, proud to be in V+ Team.