Tutorial #1

Cards (12)

  • List the three basic components of a communication system.
    • Transmitter
    • Communication Channel
    • Receiver
  • List three different types of media are used in communication systems
    • Electrical Conductors
    • Optical Media
    • Free Space
  • State the type of communication link.
    Simplex Link
  • Explain the operation of this communication link
    In ‘Duplex’ communications, information travel in two directions .
  • Explain the difference between a ‘Simplex’ and ‘Full-Duplex’ link.
    ‘Full-Duplex’ features simultaneous transmission but ‘Simplex’ does not .
  • Explain the difference between ‘Half-Duplex’ and ‘Full-Duplex’ communication links
    In ‘Half-Duplex’ communications, information travels in two directions but not together at the same time but in ‘Full-Duplex’ communications, information travels in two directions simultaneously .
  • State 2 advantages of ‘Digital Transmission’.
    • Maintain Data Integrity
    • Transmit Longer Distance
  • State an advantage of ‘Serial’ digital transmission mode.
    It is used for longer distance transmission as there are no ‘skew’ problems .
  • Describe ‘Asynchronous’ transmission in digital communications.
    Each character is transmitted independently of all other characters .
  • State the various types of ‘Multiple Access’ scheme.
    • Frequency Division Multiple Access (FDMA)
    • Time Division Multiple Access (TDMA)
    • Code Division Multiple Access (CDMA)
    • Space Division Multiple Access (SDMA)
  • What does ‘CDMA’ stand for?
    Code Division Multiple Access
  • State the name of the device that enables simultaneous transmission of several separate information channels over the same transmission medium without interference.
    Multiplexing