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ENGINEERING, TE 2021 HSC 24a

A telecommunications engineer is designing a Wi-Fi network that will use either a 2.4 GHz or 5 GHz signal in a client's local area network.

How do the 2.4 GHz and 5 GHz signals differ in performance?   (2 marks)

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  • 2.4 and 5 GHz signals differ in bandwidth, data transfer rate and attenuation (loss of signal strength).
  • A 2.4 GHz signal carries less data per second but suffers from less attenuation than a 5GHz signal.
  • 2.4GHz signals can also be transmitted through more/thicker obstacles.
Show Worked Solution
  • 2.4 and 5 GHz signals differ in bandwidth, data transfer rate and attenuation (loss of signal strength).
  • A 2.4 GHz signal carries less data per second but suffers from less attenuation than a 5GHz signal.
  • 2.4GHz signals can also be transmitted through more/thicker obstacles.

Filed Under: Electricity/Electronics Tagged With: Band 4, smc-3730-25-Other

ENGINEERING, TE 2021 HSC 3 MC

Which of the following is used to transmit data in a fibre optic cable?

  1. Air pressure
  2. Infrared light
  3. Plasma radiation
  4. Electrical voltage
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`B`

Show Worked Solution

`=>B`

Filed Under: Electricity/Electronics Tagged With: Band 3, smc-3730-25-Other

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