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CNM 232 MIDTERM EXAM REVIEW Questions And Correct Answers
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CNM 232 MIDTERM EXAM REVIEW Questions And Correct Answers ATA - answerAn acronym for Advanced Technology Attachment; the disk drive standard commonly known as Integrated Drive Electronics (IDE). biometrics - answerthe science and technology of authenticating a person's identity by measuring ph...

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  • October 16, 2024
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  • 2024/2025
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©SIRJOEL EXAM SOLUTIONS
10/14/2024 11:14 PM


CNM324 Exam One Questions And Correct
Answers


What is wrong with most RF (radio frequency) setups? - answer✔Most of the time RF
propagation occurs in non ideal environments

Wavelength - answer✔the distance between identical points in the adjacent cycles of a
waveform. In wireless systems, this length is usually specified in meters, centimeters, or
millimeters

Frequency - answer✔the number of complete cycles per second in alternating current direction.
The standard unit of frequency is the hertz, abbreviated Hz.

Wavelength Formula - answer✔speed of light (c)/frequency

What is Tx? - answer✔Transmit power, amount of energy across a defined bandwidth. Either
measured in dBm or W

decibel (dB) - answer✔a logarithmic unit of sound intensity

3 dB rule - answer✔adding 3dB doubles the power, subtracting 3dB halves the power

Effective Isotropic Radiated Power (EIRP) - answer✔measured in dBm = power at antenna input
[dBm] +
relative antenna gain [dBi]

Effective Radiated Power (ERP) - answer✔measured in dBm = power at antenna input [dBm] +
relative antenna gain [dBd]

Three types of propagation frequency bands - answer✔Very Low Frequency, High Frequency,
and Medium Frequency
Waves behave more like ____ at higher frequencies and ____ at lower frequencies -
answer✔light, radio

Diffraction - answer✔Radio path between transmitter and receiver is obstructed by a

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