Pulse Amplitude Modulation and Demodulation

Product Code: JL--1497

Pulse Amplitude Modulation and Demodulation

 The offered range is ideally utilized for studying pulse amplitude modulation and demodulation. Along with this, the offered range is available in number of customized designs, shapes and sizes in accordance with the diverse demands of clients.

Object:

To demonstrate sampling of a sine wave audio signal thereby converting it into pulse amplitude modulated signal (PAM)

To demonstrate demodulation of PAM signal thereby recovering the sine wave audio signal

To demonstrate the effect of sampling-rate on the distortion in recovered sine wave audio signal

The board consists of the following built-in parts:

± 9V D.C. at 100 mA, IC regulated power supply

Carrier generator circuit which generates the carrier signal

Audio frequency modulating signal

Variable D.C. is provided to see the frequency deviation in carrier frequency

Frequency modulation circuit with buffer stage at the output

Demodulating circuit

Adequate no. of other electronic components

Mains ON/OFF switch, fuse and jewel light

The unit is operative on 230V ±10% at 50Hz A.C. mains

Adequate no. of patch cords stackable from rear both ends 4 mm spring loaded plug length ½ meter

Good quality, reliable terminal/sockets are provided at appropriate places on panel for connections & observation of waveforms

Strongly supported by detailed operating instructions, giving details of object, theory, design procedures, report suggestions and book references

Other apparatus required:

Cathode ray oscilloscope 20 MHz

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