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Advanced Frequency Modulation & Demodulation Trainer

Order Code: 40519

Category: Communication Trainers

FM Transmitter and Receiver Trainer has been designed with a view to provide practical and experimental knowledge of Frequency Modulation / Demodulation technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of si...



SPECIFICATION

FM Transmitter and Receiver Trainer has been designed with a view to provide practical and experimental knowledge of Frequency Modulation / Demodulation technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of size 300x400mm.

Object:
To Study Theory of Frequency Modulation & Demodulation:
  1. Frequency Modulation via varactor / reactance Modulation.
  2. Frequency Demodulation via Detuned Resonant / Ratio / Qudrature / Foster - Seeley / Phase locked loop detector.
  3. Separate VCO circuit to demonstrate FM waveform.

Feature:
The board consists of the following built-in parts:
  1. POWER SUPPLY : ± 12DC IC Regulated power supply.
  2. FM Modulating signal generator : Sine wave
    • Frequency Range : 300 Hz to 3.4 Khz
    • Amplitude Range : 0 to 5 Vpp.
  3. Modulator Type : Varactor modulator (With carrier frequency adjustment)
    • Reactance Modulator (With carrier frequency adjustment)
  4. Demodulator : Detuned resonant detector.
    • Quadrature detector
    • Foster - Seeley Detector
    • Ratio Detector
    • Phase locked loop Detector
  5. Mixer/Amplifier : 1 No. (With gain adjustment) Allows FM input signal to be amplitude modulated by a noise input to demodulation.
  6. Low pass Filter : 3.4 KHz. Cut of frequency Amplifier (with adjustable gain)
  7. VCO Circuit : FM Wave form demonstrate
  8. Test Point : 78
  9. Power supply requirement : 230VAC, 50 Hz.
  10. On Board Switched Faults : 8 Nos.
  11. On Board Amplitude limiter with Amplitude control.
  12. Input - Output and Test points provided on board.
  13. A self contained Trainer.
  14. Effect of noise on the detection of FM signal may be investigated.
  15. Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
  16. Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
  17. Weight : 6 Kg. (Approx.)
  18. Dimension : W 412 x H 150 x D 310

Other Apparatus Required:
  1. Cathode Ray Oscilloscope 20MHz.
  2. Patch Cords

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