TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Radio Frequency (RF)
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Bluetooth
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Infrared (IR)
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Micro waves
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Detailed explanation-1: -Radio Transmission Radio frequency is easier to generate and because of its large wavelength it can penetrate through walls and structures alike.
Detailed explanation-2: -Types of wireless transmission media used in communications include infrared, broadcast radio, cellular radio, microwaves, and communications satellites.
Detailed explanation-3: -Wireless communication is also referred to as Unguided Media or Unbounded transmission media. In this mode, no physical medium is required for the transmission of electromagnetic signals. In wireless communication, we can transfer our message through the air, water or vacuum i.e. Infrared, Radio wave, Microwave wave.
Detailed explanation-4: -2.2 Infrared These waves are useful for only very short distance communication. Unlike radio waves, they do not have the ability to penetrate barriers. Their range varies between 300GHz – 400THz. Since they have larger bandwidth, the data rate is very high for infrared waves.