ANALOG AND DIGITAL COMMUNICATION SYSTEMS | OCTOBER/NOVEMBER-2025 #shorts #shortvideo #youtube #exam

ANALOG AND DIGITAL COMMUNICATION SYSTEMS | OCTOBER/NOVEMBER-2025 #shorts #shortvideo #youtube #exam

BOARD DIPLOMA EXAMINATION, (C-23)
OCTOBER/NOVEMBER—2025

DECE – THIRD SEMESTER EXAMINATION

ANALOG AND DIGITAL COMMUNICATION SYSTEMS

Time : 3 Hours ] [ Total Marks : 80

*PART—A* 3×10=30

*Instructions :* (1) *Answer all* questions.
(2) Each question carries *three* marks.
(3) Answers should be *brief* and straight to the point and shall *not exceed five simple sentences*.

1. Define amplitude modulation and draw its waveform.

2. State the effects of over modulation.

3. List the types of angle modulation.

4. List the merits of FM over AM.

5. List the specifications of transmitters.

6. State the need for AVC(AGC).

7. State quantization noise.

8. Define PAM and draw its waveform.

9. State the need for digital modulation.

10. Define overhead and efficiency of data communication systems.

11. Derive the time-domain equation for an AM signal.

12. (a) Distinguish between narrowband and wideband FM.
(b) State sampling theorem and mention its significance in pulse modulation techniques.

13. (a) State the need for DSBSC and SSB modulation.
(b) Compare TDM and FDM.

14. Draw the block diagram of high level AM transmitter and explain its working.

15. Explain the working of superheterodyne receiver with a block diagram.

16. Explain the concept of coding and decoding of a PCM signal.

17. Explain CRC method of error detection with an example.

18. Explain binary ASK modulator with a block diagram.

All Branches previous years Question papers Download Simple Process | DIPLOMA C23 & C20 REGULATION

@brahmasaraswathi
@krishnatharangini
@Rajarajeswari.chokka

how to DOWNLOAD previous YEAR question papers
question paper DOWNLOAD process
question paper DOWNLOAD Simple process
diploma C23 question paper DOWNLOAD
DIPLOMA C20 question paper DOWNLOAD
process of question paper DOWNLOAD
DIPLOMA previous YEAR question papers DOWNLOAD
previous YEAR question papers DOWNLOAD

#diploma #youtube #youtuber #youtubeshorts #youtubeshort #youtubevideo #youtubechannel #diplomaquestionpaper #diplomaquestionpaperdownload
#allbranches #apdiploma #tsdiploma
#appolytechnic #tspolytechnic
#apsbtet #tssbtet #c23 #c20diplomamathsquestionpaper #c23diplomaquestionpaper
#c20diplomaquestionpaper
#c23regulation
#btech #btechquestionpaper
#today #todaynews #topicoftheday #exam #diplomaexam #diplomaexams #examtimetable #polytechnicboardexam
#youtubechannel #youtubevideos
#youtubeshorts #shorts #short #shortvideo #youtube

#electronic #electronics #electroniccircuits #electroniccircuit #semiconductor #semiconductorphysics #semiconductorindustry #printedcircuitboard #fieldeffctivetransistors #switches #relay #dcpower #dcpowersupply #electroniccomponents #resistors #diode #transistor #pcb #mosfet #capacitor #inductor
#youtubeshorts #shortvideo #youtube #shorts #short
#flipflops
#truthtable
#srflipflop
#digitalelectronic
#logicgate #sequentialcircuits
#sequentialcircuit
#halfadder
#btech #switchingltheory
#logicdesign
#viralvideo #viralvideo #viralshorts #viralshort #viralvideos #viralreels
#explore #explorepage #education #educational #educationalvideo
#polytechnic #apsbtet #tssbtet
#diploma #diplomacourses

Видео ANALOG AND DIGITAL COMMUNICATION SYSTEMS | OCTOBER/NOVEMBER-2025 #shorts #shortvideo #youtube #exam канала Brahma saraswathi