Typical digital receiver block diagram. Before we continue, let's first review a theorem fundamental to sampled data which lays the foundation for the A/D converter requirements. Nyquist's Theorem: ...

A crystal radio, was the reason I got into electronics almost 50 years ago. When I was 12, my teacher brought a crystal radio to school. Of course, in the 70’s, everything ran “on batteries”.

The figure below shows a block diagram of a table-top AM radio from the late 40’s where the radio tunes in stations at the frequency frf = frequency of OSC1 – 455 kHz.

Figure 4. Block Diagram of an FM Receiver Test With an Audio Analyzer: From the transmitter, the signal is fed to the FM receiver via a direct connection to minimize outside interference and ...

Figure 1 shows a typical block diagram for a software radio. To understand the software part of the radio, we first need to understand a bit about the associated hardware. Examining the receive path ...

18. Digital receiver block diagram. We could send this signal directly to a D/A converter, producing an analog waveform.For straight single-sideband frequency division multiplexed speech, for example, ...