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Digital Communications 1 FACET Board



The Digital Communications 1 module enables students to configure, operate, and troubleshoot the following circuits:

- Pulse-Amplitude Modulation

- PAM Time-Domain Multiplexing

- Pulse-Time Modulation (PWM and PPM)

- Pulse-Code Modulation and Time-Division Multiplexing of PCM Signals

- Delta Modulation

- Channel Effects

Each circuit block contains a modulator for transmission and a demodulator for reception.

Students learn the operation and function of the following:

- Sampler

- Sample/Hold

- Adder

- Ramp Generator

- Comparator

- Limiter

- Filter



- Compressor

- Expander

- Integrator

- Differentiator

- Latched Compare

- Speaker Amplifier

- Channel Simulator

Features & Benefits

  • Each circuit block contains a modulator for transmission and a demodulator for reception.
  • Built-in channel simulator and speaker amp circuitry
  • The channel simulator circuit block enables students to investigate the effects of noise and channel bandwidth on pulse and digital modulation signals
  • The speaker amp circuit block permits students to connect a speaker and listen to the signals.
  • Communication signals are synchronized for easy display

Topic Coverage

  • Concepts of Digital Communications, Circuit Board Familiarization
  • PAM Signal Generation, Demodulation, PAM TDM Transmission and Reception
  • PTM Signal Demodulation and Generation
  • PCM Signal Generation and Demodulation, Signal Time-Division Multiplexing
  • DM Transmitter, Receiver and Noise
  • Channel Bandwidth and Noise
  • Troubleshooting Basics and Troubleshooting Digital Communications 2 Circuits


Product Fixes

FACET Vol. 22 (spanish): 5.00.02 to 5.00.03

Digital Communications 1
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