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ECE LABS | Aditya College of Engineering

Electronics and Communication Engineering Labs

Communication Lab

This laboratory covers analog and digital communications and Microwave and Optical Communications laboratories.The Analog modulated signal transmission and detection is studied in Analog Communication lab. Here we observe different modulated wave forms obtained from the respective modulation techniques (AM,FM etc) on a practical note. We will also observe the performance characteristics of pulse digital modulation techniques and also some emphasizing circuits Normally electrical signals will be in the analog form. Digital communication involves Transmission of information from source to destination in the digital form. This requires conversion of analog signals into digital form. This Lab has 12 experiments of Time Division Multiplexing (TDM) come under the category of Analog Pulse Modulation Techniques. Pulse Code Modulation (PCM), Delta Modulation (DM) and Diffential Pulse code Modulation (DPCM) come under Digital Modulation Techniques. Frequency Shift Keying (FSK), Phase Shift Keying (PSK) and differential Phase Shift Keying (DPSK) come under Digital carrier modulation Techniques.SOURCE encoder and decoder(SE&D),convolution encoder and decoder(CE&D),binary cyclice codes(BCC), linear block codes(LBC), companding comes under channel coding techniques. After performing the experiments, the student will acquire sufficient knowledge to convert Analog Signals into Digital form by the techniques indicated. At the end of each experiment questions are included which will help the students to consolidate his/her ideas

List of major equipment in the laboratory :

1Regulated Power supplies16no.
2Function Generators16no.
3Cathode ray oscilloscopes16no.
5Spectrum Analyser120
6Function Generator(10MHz)01no.
7Regulated Power supplies01no.
8Klystrone Power Supply Bench Setup03no.
9Gunn Diode Bench Setup03no.
10Laser Trainer Kits02no.
11Analog Optical fiber kits02no.