Pages: (1) (2) (3) (4) (5) (6) (7) (8) Modulation page // Oscillator Page

(continued from <-- Page Four)

If you can, please go to the wide screen edition of this page for a much clearer, bigger diagram. That page has the same text as this one and you can continue this discussion from there.

This little beauty [of a circuit] is called a detector and it's job is to take the audio signal off of that intermediate frequency that we just saw amplified. The audio is contained in the I.F. frequency just like it was in the original radio signal that came in the antenna behind us. We reduced the incoming signal to an intermediate frequency, but that didn't affect the voice frequencies at all. This detector has the ability to pass all the voice energy on and discard the radio frequency energy. The radio signal brought the voice through the ozone but now that we got it, we have no further use for it.

[Editor's note: the detector is badly named and its role explained somewhat poorly. Think demodulator and not detector. Click here for my explanation of the detector and what it does.]