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Home » Products » Educational Trainers » Communication Trainers » DSB / SSB-SC Amplitude Modulation & Demodulation Trainer

Communication Trainers » DSB / SSB-SC Amplitude Modulation & Demodulation Trainer

DSB / SSB-SC Amplitude Modulation & Demodulation Trainer

DSB / SSB-SC Amplitude Modulation & Demodulation Trainer Features:

Communication Trainers

DSB/SSB-SC Amplitude Modulation & Demodulation Trainer has been designed with a view to provide practical and experimental knowledge of Amplitude Modulation / Demodulation technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of size 300x400mm.


To Study of

1.0 Amplitude Modulation & Demodulation.

1.1 Generate AM signal by modulation with audio signal generator

1.2 Measure modulation index of A.M. signal

1.3 Demodulate AM signal using diode detector(envelope detector)

1.4 Generate voice signal AM modulation and demodulation using Mic.

1.5 Observe the effect of DC signal input on AM output

1.6 Demodulate AM signal by square law detection

2.0 DSB-SC Amplitude Modulation & Demodulation.

2.1 Generate DSB-SC AM signal

2.2 Demodulate DSB-SC signal using product detector

3.0 SSB-SC Amplitude Modulation & Demodulation

3.1 Generate SSB-SC AM signal3.2 Demodulate SSB-SC signal using product detector


The board consists of the following built-in parts:
  1. IC REGULATED POWER SUPPLY : ± 15 DC and +5V DC at 100mA.
  2. AF Modulation signal generator : Sine wave
    1.  Frequency Range : 300 Hz to 3.4 KHz
    2. Amplitude : 0 to 5 Vpp.
  3.    03. RF carrier signal oscillator.
    1. Frequency Range : 100 KHz to 1 MHz.
    2. Amplitude : 0 to 10 Vpp.
  4. Local Oscillator : 400 KHz to 500 KHz.
  5. Band Pass Filter : 452 KHz to 458 KHz.
  6. DC Source Variable power supply to
    1. see the effect of DC on the output waveform : - 5 to + 5 VDC
  7. Output Audio amplifier with Volume Control.
  8. Input Audio amplifier for modulating external signal from Mike or Tape recorder.
  9. Duble Balanced Amplitude modulator
  10. Diode detector.
  11. Product detector
  12. Low pass filter.
  13. Power supply requirement 230V AC, 50 Hz.
  14. Mains ON/OFF switch, fuse and jewel light.
  15. Dynamic Microphone with 4mm Jack Pin.
  16. Loud Speaker with baffle fitted in a box with two metre wire and 2mm Banana pins for connections.
  17. Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
  18. Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design Procedures, Report Suggestions and Book References.
  19. Weight : 6 Kg. (Approx.)
  20. Dimension : W 412 x H 150 x D 310

Other Apparatus Required:

* Cathode Ray Oscilloscope 20MHz.


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