Why the carrier frequency does not appear after AM modulation?

1. Does the carrier frequency remains constant during AM?
2. What is the carrier frequency in an AM?
3. What happens to the carrier amplitude in frequency modulation?
4. What happens when a carrier wave is modulated?

Does the carrier frequency remains constant during AM?

With no modulation, the AM carrier is transmitted by itself. When the modulating information signal (a sine wave) is applied, the carrier amplitude rises and falls in accordance. The carrier frequency remains constant during amplitude modulation.

What is the carrier frequency in an AM?

The frequency band used for AM radio is about 550 to 1720 kHz. This is the range of carrier frequencies available. The information transmitted is music and talk which falls in the audio spectrum.

What happens to the carrier amplitude in frequency modulation?

In frequency modulation, the carrier amplitude remains constant, but its frequency is changed in accordance with the modulating signal.

What happens when a carrier wave is modulated?

This process of imposing an input signal onto a carrier wave is called modulation. In other words, modulation changes the shape of a carrier wave to somehow encode the speech or data information that we were interested in carrying. Modulation is like hiding a code inside the carrier wave.