Objectives of this experiment: 1. To construct a pulse amplitude modulation generator and to observe the characteristics of both single and dual-polarity pulse amplitude modulation. 2. To construct a PAM generator, using an IC - timer as a sampling clock. 3. To observe how its output can control a C-MOS sampling switch. 4. To identify that this output wave is a dual-polarity PAM and To adjust the depth and frequency of modulation. 5. To obtain a single-polarity PAM from this circuit, by adding a DC reference level to the input sine wave. 6. To observe that the output waveform is a Single Polarity PAM. 7. To observe the demodulated waveform using detector. Built in regulated power supply: +9V/300mA. Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms |