Digital Communication Experimental Cards
(CM101)

FSK Modulation / Demodulation Code: (CM101.01)

  • Study of Frequency Shift Keying Modulation Circuit
  • Study of Frequency Shift Keying
  • Demodulation CircuitModulation systems
  • Shows how an FSK modulator and demodulator can be achieved and account for its main characteristics

PSK Modulator / Demodulator Code: (CM101.02)

  • Recognizes the waveforms and characteristics of signals used in phase shift modulation system
  • Identifies the circuit modules used in phase shift modulation systems
  • Study of PSK Modulation Circuit
  • Study of PSK Demodulation Circuit

ASK Modulator/Demodulator Code: (CM101.03)

  • Outlines the operation and characteristics of an ASK modulator and demodulator
  • Study of Amplitude Shift Keying Modulation Circuit
  • Study of Amplitude Shift Keying
  • Demodulation (Non-Coherent)
  • Study of Amplitude Shift Keying
  • Demodulation Circuit (Coherent)

QAM/QPSK Modulator/Demodulator Code: (CM101.04)

  • Learn about Quadrature Amplitude Modulation (QAM) principles.
  • Understand how QAM combines amplitude and phase modulation.
  • Explore the operational principles behind data encoding with varying amplitude and phase.
  • Recognize the advantages of QAM, such as high spectral efficiency.
  • Understand challenges like susceptibility to noise and complexity in implementation.
  • Explore constellation diagrams for different QAM schemes (e.g., 4-QAM, 8-QAM, 16-QAM), as well as Quadrature Phase Shift Keying (QPSK).

Delta Modulation /Demodulation Code: (CM101.05)

  • Identifies the advantages and disadvantages of the delta modulation system
  • Outlines the operation of the components of a delta modulator.
  • Investigates sampling rate and step size and their effects on a delta modulation system
  • Recognizes the operation of a delta demodulator
  • Investigates the causes and effects of slope overloading

Adaptive Delta Modulator / Demodulator Code: (CM101.06)

  • Identifies the advantages & disadvantages of adaptive delta modulation
  • Recognizes how an adaptive delta modulator is able to detect the occurrence of slope overloading
  • Recognizes how the Integrator gain is controlled
  • Recognizes how the adaptive delta demodulator can recover the original information signal

CVSD Modulator/Demodulator Code: (CM101.07)

  • Study of CVSD Modulation Circuit
  • Study of CVSD Demodulation Circuit

Delta-Sigma Modulator / Demodulator Code: (CM101.08)

  • Identifies the advantages of a delta-sigma
  • System compared with a basic delta system
  • Recognizes the operation and characteristics of a delta-sigma modulator
  • Investigate the operation of a Differential Amplifier
  • Investigates how a delta-sigma system is able to handle signals containing DC levels
  • Recognizes the operation & characteristics of a delta-sigma demodulator

PCM Receiver & Transmitter Code: (CM101.09)

  • Identify the causes of distortion suffered by pulse signals during transmission and show how the effects can be minimized.
  • Recognize the main characteristics of a digital system
  • Outline the important features of a Pulse Code Modulation (PCM) communication system
  • Describe how an analog signal can be converted to a serial transmission of digital pulses
  • Describe the quantization process and the cause of quantization noise
  • Explain the need for frame synchronization in a PCM transmitter
  • Outline the principles of a PCM receiver
  • Describe the action of a Digital to Analog Converter
  • Explain how the information signals are recovered by demultiplexing and demodulating
  • Investigate the importance of system timing in a PCM receiver
  • Devise a pseudo-random code by the use of Modulo-2 arithmetic
  • Explain how frame synchronization can be achieved in a PCM system by using a pseudo-random binary code
  • Describe the principles of operation and use of a PLL circuit as a clock generator in a PCM system
  • Describe the principles of odd and even parity coding
  • Explain the processes and limitations of Error Detection and Correction using the Hamming Code
  • Determine the binary word resulting from the application of parity coding and the Hamming code
  • Interpret and use a fault diagnosis algorithm to assist in the location of faults in a PCM transmission system
  • Predict the effects of fault conditions on the operation of a PCM transmission system

Manchester Encoder/Decoder Code: (CM101.10)

  • Study of Manchester Encoder Circuit
  • Study of Manchester Decoder Circuit
  • Digital Communication Experimental Cards (CM101)
  • Hard copy user manual
  • Card holder (MMS103) With Advanced Computer Interface Base Unit with Built-in Power Supply (MMS100)
  • Bench Power Supply Unit (MMS102) (Customer to provide oscilloscope, function generator, multimeter)

The training kit is based on a group of experimental cards that features different types of communications components and circuits to help teach the most common communications application and measurements and their parameters. The system demonstrates the principles of operation which most communication devices based on. The training system will guide students in learning the theory and practical aspects of communication circuits measurements such as FSK Modulation / Demodulation, Delta Modulation and Demodulation, Adaptive Delta and Delta Sigma Modulation, etc..

  • Digital Communication Experimental Cards uses present techniques that use discrete changes to represent digital data
  • The training system is a comprehensive solution to teach communications circuits and applications via a wide range of experimental cards supplied with one or more card holder.
  • The system supports cascaded connection for the card holders by connecting up to three card holders in series. In other words, the output of one card holder is fed as input to the next one.
  • Communication circuits contained in each card are presented by their schematic diagrams and test points to learn about the circuit wiring and components and connect between terminals using safety cables.
  • Each circuit and terminal on the card are labeled for easy recognition and understanding of circuit elements and components also to ensure more accurate and safe wiring during experimentation.
  • The system introduces the student to different types of communications concepts, and how to connect between components to apply certain functions and read different parameters
  • This package includes 11 Cards: FSK Modulator/Demodulator, PSK Modulator/Demodulator, ASK Modulator/Demodulator, QAM/QPSK , Delta Modulator/Demodulator, Adaptive Delta Modulator/Demodulator, CVSD Modulator/Demodulator, Delta-Sigma Modulator/Demodulator, Pcm receiver , Manchester Card, PCM transmitter