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In olden days all radio stations followed only amplitude modulation to propagate the signals.
Presently still some of the radio stations follow the same and mostly have switched over to frequency modulation.
Especailly in tv transmission the picture signal is propagated only by amplitude modulation.
Wiki User
∙ 13y ago
Wiki User
∙ 10y ago- commercial radio broadcasting
- television sound transmission
- two-way mobile radio
- cellular radio broadcasting
- microwave and satellite communication system
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How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
What is amplitude modulation derive expression for am wave and modulation index?
the maximum amplitude of carrier wave varied with respect to instantaneous values of message signal is called amplitude modulation
What is Am modulation?
AM imply amplitude modulation of a carrier signal
Why is amplitude modulation susceptible to noise but not frequency modulation?
because noise usually changes the amplitude not frequency.
What are the applications of Class B Power Amplifier?
Its used in collector amplitude modulation,Radio frequency recievers ..etc
What does AM and FM stand for in radios?
AM - Amplitude Modulation FM - Frequency Modulation
How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
What is depth of modulation?
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.
Multiple choice question answer of AM modulation?
amplitude modulation is where we modulate our signal with a carrier signal amplitude changes but frequency remains constant in amplitude modulation
What are the advantages frequency modulation 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
Amplitude modulation and frequency modulation range in India?
Normal frequency range for amplitude modulation is 550kHz to 1610kHz
What is modulated depth?
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.
What is amplitude modulation?
Amplitude modulation is a method of sending information by modifying the intensity of a carrier wave.
What is amplitude modulation derive expression for am wave and modulation index?
the maximum amplitude of carrier wave varied with respect to instantaneous values of message signal is called amplitude modulation
What are FM and AM?
Amplitude Modulation (AM) Frequency Modulation (FM)
What is Am modulation?
AM imply amplitude modulation of a carrier signal
What is lowlevel amplitude modulation and highlevel amplitude modulation?
low level amplitude modulation occurs when the carrier signal is first modulated and then amplified,whereas in high level modulation,the carrier signal is first amplified and then is modulated.
