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Is the reduction of signal amplitude as it passed over the transmission medium?
___ are types of noise generated by equipments that produces sparks.
When the power ratio of the output to input of a circuit is 200. What is the gain in dB?
_____ frequencies are exact multiples of the fundamental frequency.
The radio wavelength known as ____ falls within the medium frequency range.
White noise has _______ power spectral density.
Noise figure is a parameter that represents a ______ of the system
Just above the infrared region is the spectrum referred to as
Sound that vibrates at frequency too high for the human ear to hear (over 20 kHz)
Digital information is processed with a specified degree of
The range of frequencies represented in a signal
Wireless local-area networks occupy which of the following segments?
One of the following type of noise becomes of great importance in high frequencies. It is the
The difference between the upper and lower frequency limits of a signal or the equipment operation range is the
The first complete system of wireless communications was provided by
A passive circuit, usually consisting of capacitance and/or inductance, that is inserted in series with the a-c power cord of an electronic device which allow the 60-Hz current to pass and suppressed high frequency noise components.
A passive circuit, usually consisting of capacitance and/or inductance, that is inserted in series with the a-c power cord of an electronic device which allow the 60-Hz current to pass and suppressed high frequency noise components.
What Is the reduction of signal amplitude as it passed over the transmission medium?
Signals generated at frequencies above and below a carrier frequency by an amount equal to the modulating frequency are called
What radio frequencies are most affected by lightning or static waves?
