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What is the working principle of wireless


What is the working principle of wireless

According to wikipedia: Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor.
The most common wireless technologies use radio. With radio waves distances can be short, such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless professtional pcb prototype in China( Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mice, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones.

But how does it work ? Can anyone tell me?

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Re: What is the working principle of wireless

This a good start:

And there are links to more information on specific topics.



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