[brmarcum] takes us back to analog building block basics with his Frequency Modulation and Demodulation tutorial ... hopes to fill that gap with a simple circuit that modulates an audio signal ...

The MOSFET in the circuit is either in cut-off or saturated mode ... For a more analog MOSFET application, consider this simple AM modulator. The carrier signal is a square wave, and since the gate of ...

The nanotech device is a demodulator, a simple circuit that decodes radio waves ... at Irvine professor Peter Burke transmitted music via AM radio waves from an iPod to speakers across the room.

Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are ... There’s another demodulation method that’s not so common, but thankfully it ...