
65Experiment 3: A Real AM Transmitter
You can learn more about transistor theory, including how amplifier gain
is affected by emitter current, in Practical Electronics for Inventors, by Paul
Scherz and Simon Monk.
STATUS UPDATE
You’ve seen how to transmit and receive amplitude-modulated signals, and
along the way, you have been introduced to concepts such as sine waves,
harmonics, overmodulation, and the need for a coupling capacitor when
connecting an audio source with an amplifier.
The range and quality of AMT1 leave a lot of room for improvement, but if you
want to be a deejay, not only broadcasting music but also adding your own
commentary ...