Welcome to your Communication Sytems MCQ practice assessment.
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Frequencies above _____ kHz, are referred to as the radio frequencies
The frequency interval between two sounds whose frequency ratio is 10
The range of frequencies represented in a signal
Atmospheric noise is less severe at frequencies above
Which of the following is not a simplex communication system?
Wireless local-area networks occupy which of the following segments?
Which of the following limits the performance of a communication system?
Which communication application best describes movies, sports events, and other programs that are distributed to subscribers by fiber-optic and coaxial cable?
The first complete system of wireless communications was provided by
Determine the equivalent noise temperature of a receiver with a noise figure of 4 dB at 300 K environment temperature.
Thermal noise in the communication system due to thermal electrons
Which of the following is not a duplex type communication system?
_____ frequencies are exact multiples of the fundamental frequency.
Signal whose physical quantity varies continuously with time
A network that has an input of 75 dB and an output of 35dB. The loss of the network is _____
What radio frequencies are most affected by lightning or static waves?
The frequency band normally used to penetrate ocean depths and therefore used for communicating with submarine is ________.
A system having an input power of 2 mW an output power of 0.8 mW has a loss of:
Noise figure is a parameter that represents a ______ of the system
The value of a resistor creating noise is doubled. The noise power generated is therefore
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