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FM Transmitter & Receiver Trainer

SKU: FM Transmitter & Receiver Trainer 40519

Communication Trainers


Product Description:

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.



To Study Theory of Frequency Modulation & Demodulation:

    • 01. Frequency Modulation via varactor / reactance Modulation.
    • 02. Frequency Demodulation via Detuned Resonant / Ratio / Qudrature / Foster - Seeley / Phase locked loop detector.
    • 03. Separate VCO circuit to demonstrate FM waveform.

Feature:The board consists of the following built-in parts:01. POWER SUPPLY : ± 12DC IC Regulated power supply.
02. 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 : 





Power supply requirement :

    • 230VAC, 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

    Note: Specifications are subject to change. Order Code can be different from Manufacturer’s Model No.

011 805 5030 / 086 138 6548 - Phone orders
Monday-Friday, 08:00-17:00


Product details

Category: Communication Trainers

Product code (SKU): FM Transmitter & Receiver Trainer 40519

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