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Digital Communication Trainer

Modulation, coding, and multiplexing blocks with test points between every stage.

Sampling, quantisation, line coding, and digital modulation laid out block by block with test points between them, so a waveform is traced from source to recovered data. Noise injection with error measurement lets a class relate a coding choice to the error rate it produces instead of taking the relationship on trust.

Specifications

Baseband section
Sampling, quantisation, companding, and line coding blocks
Modulation
Amplitude, frequency, and phase shift keying with matching demodulation
Multiplexing
Time division multiplexing and demultiplexing with frame synchronisation
Impairments
Noise injection with bit error rate measurement
Test points
Block-by-block points for oscilloscope and spectrum measurement
Documentation
Experiment manual with worked results and student exercises
Power supply
220-240 V, 60 Hz, single phase (three phase where the apparatus requires it)
Supplied with
Delivery, installation, commissioning, and faculty orientation
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