A receiver is a device that
- Captures an incoming signal using an Antenna
- Where that signal is Windowed around a particular center frequency that is “tuned” (determined) by a Tuner, i.e. the Instantaneous Bandwidth
- Where an Amplifier boosts the amplitude of the signal to something useable
- Where a Filter removes out-of-band interference before digitization
- Where an ADC digitizes the analog baseband signal into IQ data]