The term amplitude modulation, or also known as AM, is a method of impressing data onto an alternating current. This is most commonly used for transmitting information via a radio carrier wave.
am is amplitude modulation, fm, frequency modulation
Amplitude Modulation.
Amplitude Modulation
Amplitude Modulation
AM - Amplitude Modulation FM - Frequency Modulation
QAM is a combination of phase modulation & amplitude modulation.
Amplitude Modulation, the method of sending information through radio frequencies.
In amplitude modulation, modulation depth refers to the ratio of the unmodulated carrier amplitude to the amplitude deviation for which the modulated carrier wave reaches its minimum value. If this minimum value is zero, the modulation depth is 100%.For amplitude modulation,modulation depth = (a-b)/(a+b),wherea is the unmodulated carrier amplitude, andb is the minimum amplitude deviation.The modulation depth ratio is also referred to as the modulation index.
amplitude modulation is where we modulate our signal with a carrier signal amplitude changes but frequency remains constant in amplitude modulation
FM means frequency modulation, and AM means amplitude modulation.
Frequency modulation have some advantages over amplitude modulation, FM is not sensitive to the amplitude noise, and have high efficient use of transmitted power
Normal frequency range for amplitude modulation is 550kHz to 1610kHz