What are the benefits of SDR?

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Software-defined radio (SDR) is a radio communication system where components that have been traditionally implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.

A basic SDR system may consist of a personal computer running SDR software that interfaces with analog-to-digital converter over USB or ethernet, preceded by some form of RF front end with RF amplifiers, filters and attenuators.

 

What are the benefits of SDR?

  1.  The ability to receive and transmit various modulation methods using a common set of hardware
  2. The ability to alter functionality by downloading and running new software at will.
  3. The possibility of adaptively choosing an operating frequency and a mode best suited for prevailing conditions.
  4. The opportunity to recognize and avoid interference with other communications channels;
  5. Elimination of analog hardware and its cost, resulting in simplification of radio architectures and improved performance;
  6. The chance for new experimentation (e.g. development of new protocols)