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This application note covers
• the reasons for the move to digital modulation;
• how information is modulated onto in-phase (I) and quadrature (Q)
signals;
• different types of digital modulation;
• filtering techniques to conserve bandwidth;
• ways of looking at digitally modulated signals;
• multiplexing techniques used to share the transmission channel;
• how a digital transmitter and receiver work;
• measurements on digital RF communications systems;
• an overview table with key specifications for the major digital
communications systems; and
• a glossary of terms used in digital RF communications. |
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