A Simple Product Detector
The simplest form of product detector mixes (or hetrodynes) the RF or IF signal with a locally derived carrier (the Beat Frequency Oscillator, or BFO) to produce an audio frequency copy of the original audio signal and a mixer product at twice the original RF or IF frequency. This high-frequency component can then be filtered out, leaving the original audio frequency signal.
Read more about this topic: Product Detector
Famous quotes containing the words simple and/or product:
“We all enter the world with fairly simple needs: to be protected, to be nurtured, to be loved unconditionally, and to belong.”
—Louise Hart (20th century)
“Everything that is beautiful and noble is the product of reason and calculation.”
—Charles Baudelaire (1821–1867)