Order Code-40623 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

FEATURES:

• On-board Sine-wave generator.
• On-board Four Carrier Sine waves of 500Khz.
• On board three nos. of 8-bit NRZ-L. Data Simulator.
• Clock frequency of 250 Hz.
• Dat Format (Coding) is NRZ-L, Tribit encoded and Differential Encoded I & Q bits.
• In-Built Power Supply.

LIST OF EXPERIMENTS:

• To study the elements of 8-QAM / DQAM system.
• Tribit coding technique of NRZ-L data format.
• Differential Encoding of Data.
• 8-QAM Modulation technique.
• DQAM Modulation technique.
• To study of constellation Diagram of QAM.
• To study bandwidth efficiency in QAM techniques.
• Effect of Switch faults.

SPECIFICATIONS:

• Carrier Sine Wave Generator
• Four carrier sine waves Generated onboard.
• Provides synchronized Sine waveform output of 500KHz(0deg.) ,500KHz(90 deg.) ,500KHz(180 deg. ),500KHz(270 Deg.).
• Clock And Data Generator
• 24 bit variable NRZ-L pattern generated depending on the position of the three nos. of 8-dit Data Switch provided.
• Clock Frequency is of 250 Khz.
• Data Format (Coding)
• Non Return to Zero-Level (NRZ-L)
• Tribit encoded data (I ,Q & C)
• Differential Encoded I & Q Bits.
• Carrier Modulation Techniques
• Quadrature Amplitude Modulation
• Differentially Quadrature Amplitude Modulation.
• On-board features
• On board Three Nos. of 8 bit variable NRZ-L pattern Data Simulator
• Switch Faults are provided on board to study different effects on circuit.
• Block Description Screen printed on glassy epoxy PCB.
• Interconnections
• All interconnections are made using 2mm banana Patch cords
• Test points are provided to analyze signals at various points.
• All ICS are mounted on IC Sockets.
• Bare board Tested Glass Epoxy SMOBC PCB is used.
• In-Built Power Supply of +5V/1.5A, 12V/250mA with Power ON indication
• Attractive enclosure
• Set of 2mm Patch cords for interconnections
• User's Manual with sample experiments programs