Quadrature Amplitude (QAM) Modulation & Demodulation

Objective :

a) Observe the Different Signals are Transmitted in a given Band Width by using the different Carrier Frequency.

b) Recovery the Modulating Signal by selecting the various Carrier Frequencies using Band Pass Filter & Separate Detector.

Technical Specification :

* In built IC based DC Regulated Power Supply ±12V/ 500mA

* On Board Sine Wave Audio Frequency Signal Generator, Frequency : 1.5KHz & 3KHz, Amplitude : 0-2Vpp Approx.

* On Board Inphase & Quadrature phase Carrier Signal Generator Sine Wave, Frequency : 25KHz  Amplitude : 5Vpp Approx.

* Modulation using Balanced Modulator IC 1496 followed by an Adder using IC TL081

* Demodulation using Balanced Modulator using IC 1496 Band Pass Filter using IC TL081 followed by Low Pass Filter

* 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