Summer Value Added Certification Courses

ProductsCommunication Trainers

PAM-PPM-PWM Modulation and Demodulation Trainer

PAM- PPM- PWM is the basic pulse modulation techniques. This trainer provides complete setup to the students for performing Experiments on these techniques. They can study Sampling, Pulse Modulation &Signal reconstruction process. Separate circuits are provided for each Techniques.


  • PAM- PPM- PWM Modulation and Demodulation Techniques,using Natural and Flat - top Sampling.
  • Natural Sample, Sample and Hold and Flat-top outputs.
  • Selectable 2 different sampling pulse frequencies on board.
  • On board Sine wave generators.
  • Voice communication using dynamic microphone and speaker
  • On board Filters and Amplifier
  • Functional blocks indicated on board schematic
  • Input- Output and Test points provided on board.
  • Built in DC Power Supply
  • Fully documented operating Manual


  • Crystal Frequency : 6.14MHz
  • Sampling Frequency : 16 KHz, 32 KHz
  • Sine wave Generator : 1 KHz &500Hz, Amplitude (0-5)V, Tolerance +5%
  • Low Pass Filter : 4 Order BW Filter
  • Cut off frequency : 3.4 KHz
  • Voice Communication : Voice Link using dynamic mic & speaker
  • AC Amplifier : With Adjustable Gain control
  • Microphone type : Dynamic, 600 Ohm.
  • Audio Pre-amplifier : Op-amp based
  • Power amplifier : 1W Mono
  • Interconnections : BS2 Connector.
  • Power : 230V, 50Hz