HB3YAQLucerne
SDR
In a Software Defined Radio, software performs key signal-processing tasks such as filtering and demodulation. The analogue front end and converter still determine which signals can be processed.
Also found under: Software Defined Radio · Softwarefunk
A concrete example
In the learning lab, examine the same simulated frequency range with different filters.
What to keep in mind
Software alone cannot extend the hardware’s usable frequency range or overload tolerance.
Further reference
Original explanation based on the technical documentation. Reviewed on 15 October 2026.
Marc Lichtman · PySDR: Introduction ↗