Frequency Modulation & Demodulation Trainer - Order Code 40519

SPECIFICATION

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.

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

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