Transcription of Presentation ID 1
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111 2001, Cisco Systems, Inc. All rights 2001, Cisco Systems, Inc. All rights NumberPresentation_IDQPSK and 16-QAM Digital ModulationRon Hranac333 2001, Cisco Systems, Inc. All rights information such as sound (audio), images (video), and digital data can be transmitted from one point to another using radio waves This is done by modulating an RF signal a carrier with the information to be transmitted Modulationis the variation one or more properties of an RF signal to represent the information being transmitted444 2001, Cisco Systems, Inc.
• Information such as sound (audio), images (video), and digital data can be transmitted from one point to another using radio waves • This is done by modulating an RF signal—a carrier—with the information to be transmitted • Modulation is the variation one or more properties of an RF signal to represent the information being transmitted
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