But AM itself is not related to a particular frequency, instead it refers to “Amplitude Modulation”, and was the original modulation mode for conveying speech and music. You’ll also find it ...

"AM" stands for amplitude modulation and was the first method used to transmit broadcast radio signals. When AM radio became widespread in the 1920s, it changed the way Americans received their ...

Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an analog telephone conversation, the voice waves on both sides are modulating the voltage of the ...

An AM transmitter is simple enough, in this case an oscillator and buffer driving a class C power amplifier. The modulation is applied by a transistor in series with the power amp, driven from an ...

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to ...