Chapter 1 - RF

What is a modulation?

• Process used to manipulate a medium to represent digital data bits

• Process used to create frequency from point A to Point B

• A process specifically bound the frequency signal

• Frequency modulation

Basic characteristics of a Radio Frequency

• Signal, Modulation, Demodulation, and Frequency

• Frequency, Signal, Current, and amplitude

• Frequency, Wavelength, phase, and amplitude

• notes, hertz, oscillation, and range

The vast majority of Wi-Fi device operates in ____ and ____.

• 2.4Ghz and 5Ghz

• 2.4Ghz and 3.00Ghz

• 5Ghz and 6Ghz

• 3Ghz and 5Ghz

____ is good for modern multiple-input / multiple-output (MIMO) systems that use two or more antenna chains, but it is bad for single-input and output (SISO systems that use only one antenna chain.

• Singlepath

• Multipath

• Signal Path

• Demodulation

PSK and ASK are used in ____ production devices.

• 802.11

• 802.20

• 801.21

• 500.30