This video demonstrates amplitude modulation by using a crystal oscillator and a function generator. The presenter shows how changing the voltage of the oscillator affects the amplitude of the signal, and then uses a 500Hz tone to modulate the oscillator, creating sidebands that can be seen on a spectrum analyzer. The presenter then uses a transistor radio to listen to the modulated signal, demonstrating how the frequency of the tone affects the pitch of the sound.
5028 1 год назад 9:00