Bandwidth (bps – bits per second)

• Amount of data that can be transmitted in per unit time.
• Difference between highest frequency and lowest frequency (bandwidth = high – low)

Frequency (Hertz)

• Number of complete cycles per second.
  • ex) 60Hz = 60 cycles per second

• Low Frequency Wave
  • There are many frequencies already being used by other appliances such as microwave ovens(causes interferences).
  • Small bandwidth: There is no much space not being used around it.
  • Too crowded these days.
  • Covers farther distance
  • Low speed
  • ex) Wifi (2.4GHz or 5 GHz)

• High Frequency Wave
  • Large bandwidth: There is a lot of space not being used around it.
  • Covers short distance
  • High speed
  • ex) Millimeter Wave (60GHz)