| ADVANCE
COMMUNICATION LAB |
| Frequency
Modulation & Demodulation Trainer (Advanced Model)
|
| Objective : |
| a) To Carry out experiment on
Two Types of Frquency Modulation & Five Type of Demdoulation |
| b) To Study Frequency
Modulation Waveform, VCO Circuit is available Separately |
| c) To Study the Noise Effect
on Frequency Modulation Transmission & Tuned Circuit |
| Specifications : |
| * In Built IC Based DC
Regulated Power Supply ±12/ 500mA |
| * On
Board Sine Wave Audio Oscillator (with adjustable Amplitude & Frequency),
Frequency : 300Hz - 3.4KHz, Amplitude
: 0-4Vpp Approx. |
| * On Board Transmitter Output
Frequency, Frequency : 455KHz,
Amplitude : 0-0.5Vpp Approx. |
| * On Board Low Pass Filter,
Frequency : 3.4KHz Cut-off Frequency Amplifier (with Adjustable Gain) |
| * 1 No. of Amplitude Limitor |
| * 1 No.
of Mixer/ Amplifier with Gain Adjustable allows Frequency Modulation Input
Signal to be Amplitude Modulated by a Noise Input Prior to Demodulation |
| * Modulation using Reactance
Modulator & Varactor Modulator (Both with Carrier Frequency Adjustment) |
| *
Demodulation using Detuned Resonant Detector, Quadrature Detector, Foster
Seelay Detector, Ratio Detector, Phase Locked Loop Detector |
| * On Board Faults Switches 8
Nos. |
| * On Board Test Points 74 Nos. |
| * Glass Epoxy PCB used as
front panel & mounted on light weight shock proof plastic cabinet |
| Power
Requirement : 220V AC ±10%, 50Hz |
| Standard
Accessories : Patch Cords & Instruction Manual |
| Optional
Accessories : CRO 20MHz |
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