COM3LAB Course: Modem Technology - COM4LAB ready

Comprises an experiment board, housed within a board carrier, for use in conjunction with, and powered by the Master Unit (700020, supplied separately) teaching a practical course on the fundamentals and applications of shift keyed signals and modems, experiments being wired using 2 mm safety cables (700022, supplied separately). Course content, experiment instructions and tasks are taught via course-specific software.

Curriculum Coverage

• Introduction
• Amplitude shift keying (ASK)
• Frequency shift keying (FSK)
• 2-phase shift keying (2PSK)
• 4-phase shift keying (4PSK)
• Difference phase coding
• Shift keyed signals in the time domain
• Shift keyed signals in the frequency domain
• Estimation of the bandwidth
• Modulation rate / data rate
• SNR & bandwidth
• Hardware of the modulators
• Hardware of the demodulators
• Carrier recovery & synchronisation of the demodulators
• Error correction
• Error detection
• Operational modes, simplex half duplex, full duplex
• NRZ line code
• Fault simulation

Optional

Communication of 2 PCs using modems
A 2nd workstation with a PC with a Master Unit (700020) and the COM3LAB course Modem Technology (7007401) is required, as well as other accessories (coaxial cable, star quad cable etc.) .

Virtual Laboratory

• Oscilloscope
• Function Generator
• Multimeter (x2)
• Digital Analyser
• Spectrum Analyser (FFT module)
• Frequency Counter
• Data Transfer Module

Additional Functions

• Word Processing
• Printer
• Pocket Calculator
• Free Experimentation
• Glossary

The COM3LAB software contains courses in all supported languages and the current version can be downloaded from www.ld-didactic.de for free. Alternatively, the COM3LAB software can also be obtained on DVD (70000CBT).