The Adtron’s FM Transmitter and Receiver Trainer is a versatile self contained stand alone unit useful in the study and demonstration of carrier generation, frequency modulation, transmitter amplifier, receiver, FM demodulator, audio amplifier. The unit is housed in an elegant cabinet with a well spread intelligently designed circuit layout on front panel. Test points are provided at various stages in the circuit to observe the waveforms and voltages. It is strongly supported by a comprehensive instruction manual complete with theory and operating details.
Salient features :
On board variable frequency audio oscillator.
On board FM modulator, detectors, amplitude limiter and filter.
Technical Specifications :
► Audio Oscillator : Sinewave with variable Frequency and Amplitude (300 Hz – 3.4 KHz).
► FM Modulator : 1. Reactance Modulator ( with carrier Frequency adjustment )
2. Varactor Modulation ( with carrier Frequency adjustment )
► Mixer / Amplifier : 01 no. ( with gain adjustment ) Allows FM input to be amplitude modulated by noise prior to demodulation.
► Transmitter o/p Frequency : 455 KHz.
► FM Demodulator : 1. Detuned Resonant detector.
2. Quadrature detector.
3. Fooster – Seeley detector.
4. Ratio detector
► Low Pass Filter : 3.4 KHz cut off frequency.
► Test-points : 74.
► Interconnections : 4mm Banana sockets and patch cords.
► Power Requirement : 230V, 50 Hz, 1f AC., ± 10 %.
► Switch Fault : 8 Nos.
► Amplitude : 1 No.
► Amplifier : ( with adjustable gain. )
► Accessories : 1. Instruction Manual.
2. Set of Patch cords.
1. Study of 2 types of FM modulators & 5 different types of demodulators.
2. Effect of noise on FM transmission & study of tuned circuits.