The advantage of an FM stereo signal over a monaural signal in communication systems is that you can transmit and receive two channels of information at the same time. Typically, this is the left and right audio signal, and it allows the listener to perceive spatial aspects of the original performance.
This is done by sending left+right over the base modulation range. A monaural receiver will then play left+right over one speaker, making it compatible with older receivers.
Then, to get the second channel, we send left-right over a secondary modulated carrier of 38kHz, riding on top of the original modulation. The receiver decodes that by adding and subtracting. In one case, left+right plus left-right gives 2 times left, and left+right minus left-right gives 2 times right.
There is also a 19kHz pilot tone included, which a receiver can detect and use to enable the decoder. This will help the receiver not attempt to decode when there is a weak signal.
Wired communications have the following advantages. It is more secure than wireless communication since it uses cables rather than air, it is reliable because it is not susceptible to signal loss and it is faster as compared to wireless communication.
1-What are the advantages of sampling analog signals?2-what are the following terms mean : instantaneous Sampling , Natural Sampling , and Flat-top Sampling ?3- what are the advantages of digital communication over analog communication ?4-Explain the reason for making the sampling frequency greater than or equal to (2B)Hz , where B is the bandwidth of the analog signal
A "signal plan" is typically a document that outlines how signals are used or managed, whether in traffic control or communication systems. It specifies signal timings in traffic or signal allocation in communication networks.
micro wave is used in cell phone communication.
a smoke signal can help people spot you in the woods.
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learning a signal
Noise may interfere with signal at ant point in a communication system.The noise has its greatest effect on the signal in the channel.
past present and emerging developments in signal characteristics?
If an RF signal is AM modulated with a analogue signal any noise will add or subtract to the amplitude of the RF signal and will be present in the audio signal after detection, also will the noise add itself to the audio signal, where as in digital communication a slight variation in the amplitude of the signal is of no concern because you only work with ones and zeros, it's high or it's low
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