B.E. IV Sem Computer Engineering

IV SEMESTER

4CP7. Communication Lab

 

List of Experiments

1. Harmonic analysis of a square wave of modulated wave form
2. Observe the amplitude modulated waveform and measures modulation index . Demodulation of the AM signal
3. To modulate a high frequency carrier with sinusoidal signal to obtain FM signal .Demodulation of the FM signal
4. To observe the following in a transmission line demonstrator kit :
        i.  The propagation of pulse in non-reflecting Transmission line .
        ii.  The effect of losses in Transmission line .
        iii. The recognizance characteristics of al half wave length long x-mission line.
5. To study and observe the operation of a super heterodyne receiver
6. To modulate a pulse carrier with sinusoidal signal to obtain PWM signal and demodulate it .
7. To modulate a pulse carrier with sinusoidal signal to obtain PPM signal and demodulate it.
8. To observe pulse amplitude modulated waveform and its demodulation.
9. To observe the operation of a PCM encoder and decoder .To consider reason for using digital signal xmissions of analog signals.
10. Produce ASK signals , with and without carrier suppression, Examine the different processes required for demodulation in the two cases.
11. To observe the FSK wave forms and demodulate the FSK signals based on the properties of (a) tuned circuits (b) on PI.L.