Chapter 2 quiz Flashcards
What denotes the strength of an RF wave or signal?
Wavelength
Phase
Amplitude
Modulation
Amplitude
what is decreased as the frequency of a wave increases
Wavelength
Phase
Modulation
Coding
Wavelength
what RF behavior is similar to light waves as seen in a mirror?
Absorption
Attenuation
Reflection
Phase
Reflection
What kind of modulation is not used in WLAN
PSK
FSK
ASK
BPSK
(Frequency Shift Keying) FSK
What is the common ohm rating in equipment designed for use in WLANs
75
50
25
100
50
What happens when RF energy is converted to heat when passing through some materials
Absorption
Reflection
Phase Shifting
Frequency shifting
Absorption
What phenomenon is good for mimo systems, but must be handled with something like diversity in siso systems?
Modulation
Multipath
FSPL
Refraction
Multipath
What amount of additional signal strength doubles the usable range of an RF signal in free space?
2 dB
3dB
6dB
10 dB
6 dB
What comparative attribute relates an RF wave to another wave?
Wavelength
Frequency
Amplitude
Phase
Phase
What occurs as an RF signal moves through space and spreads to cover an even larger area?
Amplification
FSPL
VSWR
Diffraction
FSPL
