Pulse Position Modulation and Demodulation

• Observe change in position of clock pulses according to the amplitude of the Modulating signal at the Different clock frequencies.
• Recovery of modulating signal from demodulator circuit.

Technical Specifications

• In built IC based DC regulated power supply +12V, + 5V/ 300mA .
• On board sine wave audio frequency signal generator
• Frequency : 1 KHz & 2KHz Amplitude : 0-10Vpp & 0-4 Vpp
• On board sampling pulse generator (Frequency : 8KHz, 16KHz, 32KHz, 64KHz Amplitude : 5Vpp)
• Modulation using IC 7555 multivibrator and pulse width modulation as input.
• Demodulation of PPM using 4 order / low pass filters & AC amplifier using TL
• 074 with adjustable Gain control.
• Circuit diagram printed on Glass Epoxy PCB & all important IC's & test points brought out on front panel.
• Power requirement: 230 VAC +10%, 50Hz.