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AM travels well over longer distances than FM is capable of, but has a lower fidelity and is more susceptible to metal, which is why it is not used as often in cities.
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How phase lock loop is used as a universal detector for Amplitude Modulation?
I could certainly be wrong, but my recollection is that a phase locked loopis a universal detector for Frequency and Phase modulation, and is quiteinsensitive to Amplitude modulation.
How is pulse amplitude modulation transmitted?
Generally pulse amplitude modulation (PAM) is trasmitted as a series of DC levels and are mostly used in wired trasmissions (DC is not effective wirelessly).
Why amplitude modulation is used for video transmission?
IF we use frequency modulation for transmitting video signal this can cause phase shifting .and eyes can percieve this distortion effect easly . and requires more bandwidth to send the signal .Color levels are adjusted by amplitude in TV .So it s more logic to use Amplitude modulation .
In order to send more than one bit at a time during a single phase on a carrier modulation is used?
amplitude modulation is used
How does amplitude modulation transmit ones to zeros?
Amplitude modulations can be used to transmit binary data. Remember AM modulation is done using a single carrier frequency, and increasing or decreasing the amplitude. A high amplitude would be considered a '1', and a low amplitude would be considered a '0' (typically).
What type of modulation is used to carry the picture portion of a television signal?
Amplitude Modulation (AM) is used for the picture portion of a television transmission while Frequency Modulation (FM) is used for the audio portion.
What are the two types of wave communication used in broadcasting?
AM and FM AM=Amplitude Modulation FM=Frequency Modulation Hope this helps
How do waves carry signals?
Waves can be varied (modulated) by either changing amplitude (amplitude modulation AM) or changing frequency (wavelength) (frequency modulation FM). The modulations are used to carry the information signal.
Why is intermediate frequency transformer used in amplitude modulation?
used as a adjustable band pass filter...
Why phase modulation is used?
Actually phase modulation was used for the color signal in all analog TV systems.Phase modulation, with some signal preprocessing, was used to indirectly get frequency modulation in many FM transmitters.Certain modems use phase amplitude modulation.etc.
AM wave frequencies are?
AM stands for Amplitude Modulation. Whatever radio frequency you use, a single frequency would just produce silence at the receiver. You need to superimpose sound frequencies onto the carrier wave. Amplitude modulation does this by varying the Amplitude (strength, power) of the radio carrier wave in time with audio frequency. AM is therefore the kind of 'coding' used and has nothing to do with frequency. By convention, amplitude modulation is mostly used in the medium and long, radio waves. From 150 to 1600 Khz. AM is also used for air band communications at 121Mhz, whereas FM is used at marine frequencies of 156Mhz.
What is mean by the term amplitude modulation?
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.
