QUESTIONS ON RADIO SYSTEMS

  1. Explain in your own words, the process of communication using a paging system.
  2. What were the three main problems with early cordless telephones?
  3. What is meant by the term 'roaming' with reference to CT-3 or DECT technology?
  4. How much bandwidth is each channel allocated in the IMTS system?
  5. What solution is available when a cell becomes congested?
  6. Which digital system has been standardised by the European PTT's?
  7. How does transmission on a wireless LAN differ from Cellular telephone transmission?
  8. What is the typical bandwidth of a wireless LAN?
  9. What is the 'hidden station problem' of a wireless LAN?
  10. Why is the CSMA protocol a poor choice for wireless LAN's?
  11. Give four advantages of Digital transmission over Analogue for mobile computing.