Amplitude Modulation
Amplitude Modulation Using High-Level Modulation Circuit Introduction Amplitude modulation is a way of sending information like audio or voice through the air using radio waves. Imagine if there is a message you need to send to someone, like your voice message or music then you need a carrier wave with a high frequency that can travel long distances. A common circuit for implementing amplitude modulation uses a transistor-based configuration known as the high-level modulation circuit. Circuit components Radio frequency carrier source - generates high frequency carrier signal normally in kHz to MHz range. Radio frequency class c amplifier - a class C amplifier is a electronic amplifier that only works part of the time. Modulating signal - amplifies the low-frequency audio signal. Modulation transformer - couples the modulated output to the next stage. Power supply - provides the DC (direct current) voltage to the circuit. Other components - Resistors and cap...