DCL-10300: Digital Communication Lab

Curriculum Objectives
* To understand basic theories of digital communication system
* To design and implement digital modulator and demodulator
* To understand the applications of digital modulator and demodulator circuits.

Curriculum Outline
* Design and Implementation of line code encoder and decoder
* Design and implementation of PWM and PCM modulators and demodulators
* Design and implementation of DM and ADM modulators and demodulators
* Design and implementation of ASK, FSK, and PSK modulators and demodulators

The Digital Communication Lab comes with 8 different experiment boards, all conveniently stored in a metal case that can be sat upright or sideways.

DCL-10301
Line Code Encoder
    Experiment 1: Unipolar and Bipolar NRZ Signal Encoder
    (Signal Type: TTL, Data Rate: 1 ~ 4 kbps)
   
    Experiment 2: Unipolar and Bipolar RZ Signal Encoder
    (Signal Type: TTL, Data Rate: 1 ~ 2.5 kbps, CLK: 2 kHz ~ 5 kHz)
   
  Experiment 3: AMI Signal Encoder
    (Signal Type: TTL, Data Rate: 50 ~ 250 bps, CLK: 100 Hz ~ 500 Hz)
 
  Experiment 4: Manchester Signal Encoder
    (Signal Type: TTL, Data Rate: 100 ~ 400 bps, CLK: 200 Hz ~ 800 Hz)
 
Line Code Decoder

    Experiment 1: Unipolar and Bipolar NRZ Signal Decoder
    (Signal Type: TTL, Data Rate: 1 ~ 4 kbps)
   
    Experiment 2: Unipolar and Bipolar RZ Signal Decoder
    (Signal Type: TTL, Data Rate: 1 ~ 2.5 kbps, CLK: 2 kHz ~ 5 kHz)
   
  Experiment 3: AMI Signal Decoder
    (Signal Type: TTL, Data Rate: 50 ~ 250 bps, CLK: 100 Hz ~ 500 Hz)
 
  Experiment 4: Manchester Signal Encoder

    (Signal Type: TTL, Data Rate: 100 ~ 400 bps, CLK: 200 Hz ~ 800 Hz)
 

DCL-10302
PWM Modulator
     Experiment 1: uA741 Pulse Width Modulator
     (Carrier Signal: 1.5kHz~2 kHz, Audio Signal Frequency: 500 Hz)
     Experiment 2: LM555 Pulse Width Modulator
     (Carrier Signal: 5 kHz~10 kHz, Audio Signal Frequency: 1 kHz)
PWM Demodulator
     Experiment 1: Pulse Width Modulator
     (Carrier Signal: 5 kHz~6 kHz, Audio Signal Frequency: 500 ~ 700 Hz)

DCL-10303
PCM Modulator
     Experiment 1: PCM Modulator
     (Built-in Sample Frequency: 8 kHz, Built-in Operation Frequency: 2048 kHz, Audio Signal: 100 Hz ~ 2 kHz)
PCM Demodulator
     Experiment 1: PCM Demodulator
     (Built-in Sample Frequency: 8 kHz, Built-in Operation Frequency: 2048 kHz, Audio Signal: 500 Hz ~ 3kHz)

DCL-10304
Delta Modulator
    Experiment 1: Delta Modulator
    (Signal Type: TTL, Sample Frequency: 32 kHz ~ 256 kHz, Audio Signal: 1 kHz ~ 3 kHz)

Delta Demodulator
    Experiment 1: Delta Demodulator
    (Signal Type: TTL, Sample Frequency: 32 kHz ~ 256 kHz, Audio Signal: 1 kHz ~ 3 kHz)
DCL-10305
Adaptive Delta Modulator
    Experiment 1: Adaptive Delta Modulator
    (Signal Type: TTL, Sample Frequency: 32 kHz ~ 128 kHz, Audio Signal: 500 Hz ~ 1 kHz)

Delta Demodulator
    Experiment 1: Adaptive Delta Demodulator
    (Signal Type: TTL, Sample Frequency: 64 kHz ~ 256 kHz, Audio Signal: 500 Hz ~ 1 Hz)
DCL-10306
ASK Delta Modulator
    Experiment 1: XR2206 ASK Modulator
    (Carrier Signal: 20 kHz, Data Rate: 1 kbps)
    Experiment 2: MC1496 ASK Modulator
    (Carrier Signal: 20 kHz ~ 100 kHz, Data Rate: 2 kbps)
ASK Delta Demodulator
    Experiment 1: Asynchronouse ASK Modulator (I) (Use XR2206 as the modulated ASK signal)
    (Carrier Signal: 20 kHz, Data Rate: 200 bps ~ 1 kbps)
    Experiment 2: Asynchrouse ASK Modulator (II) ( Use MC1496 as the modulated ASK signal)
    (Carrier Signal: 20 kHz ~ 100 kHz, Data Rate: 200 bps ~1 kbps)
    Experiment 2: Synchrouse ASK Modulator
    (Carrier Signal: 100 kHz ~ 100 kHz, Data Rate: 200 bps ~2 kbps)
DCL-10307
FSK Modulator
    Experiment 1: XR2206 FSK Modulator
    (Data Rate: 200 bps ~ 400 bps)
    Experiment 2: LM566 FSK Modulator
    (Data Rate: 200 bps ~ 400 bps)
FSK Demodulator
    Experiment 1: FSK Demodulator (I) (use XR2066 as the modulated FSK signal)
    (Data Rate: 200 bps ~ 400 bps)
    Experiment 2: FSK Demodulator (II) (use LM566 as the modulated FSK signal)
    (Data Rate: 200 bps ~ 400 bps)

DCL-10308
PSK Modulator
    Experiment 1: PSK Modulator
    (Carrier Signal: 100 kHz, Data Rate: 200 bps)
PSK Demodulator
    Experiment 1: PSK Demodulator
    (Carrier Signal: 100 kHz, Data Rate: 200 bps)

 

Optional Equipments

FG-442002: Function Generator and DC Power Supply (optional)
Function Generator:
     Two signal output ports
     Freq. Range: 10 Hz ~ 100KHz and 100Hz ~ 1 MHz
     Waveforms: Sine, Triangle, Square, TTL Pulse
     Amplitude: 10 Vpp
     Built-in 6-digit frequency counter
     Large 0.5" LED display
     Overload protection
DC Power Supply:
     Triple bipolar voltage output
     Constant voltage operation
     Low ripple and noise

Oscilloscope(Optional)

   

 

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