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<p><a href="page.php?w=radio_clock">radio clock</a>s and other components of communications, remote control, and wireless networking systems.</p>

<p><big>Applications</big></p>
<p>Radio has many practical applications, which include broadcasting, voice communication, data communication, radar, radiolocation,  medical treatments, and remote control.</p>

<p><big> Principles </big></p>
<p>A radio receiver is connected to an <a href="page.php?w=antenna_%28radio%29">antenna</a> which converts some of the energy from the incoming radio wave into a tiny <a href="page.php?w=radio_frequency">radio frequency</a></p><p>
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