Frequency Modulation and Demodulation Trainer
Product Code : JA-CT-1496
Frequency Modulation and Demodulation Trainer
- FM Transmitter and Receiver Trainer has been designed with a view to provide practical and experimental knowledge of Frequency Modulation & Demodulation Trainer technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of size 300 x 400 mm.
Object:
To Study Theory of Frequency Modulation & Demodulation:
- Frequency Modulation via varactor / reactance Modulation
- Frequency Demodulation via Detuned Resonant/Ratio/Quadrature/Foster - Seeley/Phase locked loop detector
- Separate VCO circuit to demonstrate FM waveform
Feature:
The board consists of the following built-in parts:
POWER SUPPLY:
- ± 12DC IC Regulated power supply
FM Modulating signal generator:
- Sine wave
Frequency Range:
- 300 Hz to 3.4 Khz
Amplitude Range:
- 0 to 5 Vpp.
Modulator Type:
Varactor modulator (With carrier frequency adjustment):
- Reactance Modulator (With carrier frequency adjustment)
Demodulator (Detuned resonant detector):
- Quadrature detector
- Foster - Seeley Detector
- Ratio Detector
- Phase locked loop Detector
Mixer/Amplifier:
- 1 No. (With gain adjustment) Allows FM input signal to be amplitude modulated by a noise input to demodulation.
Low pass Filter:
- 3.4 KHz. Cut of frequency Amplifier (with adjustable gain)
VCO Circuit:
- FM Wave form demonstrate
Test Point:
- 78
Power supply requirement:
- 230V AC, 50 Hz.
On Board Switched Faults:
- 8 Nos.
- On Board Amplitude limiter with Amplitude control.
- Input - Output and Test points provided on board.
- A self contained Trainer.
- Effect of noise on the detection of FM signal may be investigated.
- Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
- Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
Weight:
- 6 Kg. (Approx.)
Dimension:
- W 412 x H 150 x D 310
Other Apparatus Required:
- Cathode Ray Oscilloscope 20MHz.
- Patch Cords
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