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CWNP Exam CWISA-102 Topic 5 Question 20 Discussion
Topic #: 5
What factor severely limits the range of systems operating in the 60GHz band?
60GHz Absorption:The 60GHz band experiences significant signal attenuation due to absorption by oxygen molecules in the atmosphere. This severely restricts the usable range of wireless systems operating in this frequency.
Why Other Options Don't Apply:
Atmospheric Scattering:Impacts longer wavelength transmissions, less significant at 60GHz.
Solar Radiation:Can cause interference on some frequencies, but not a primary range limitation at 60GHz.
Rain Fade:Primarily affects higher frequencies (above 10GHz), but its impact is less severe than oxygen absorption at 60GHz.
References:
60GHz Propagation Characteristics:Technical papers discussing oxygen absorption and its influence on range limitations.
Millimeter-wave (mmWave) Communication:Overviews highlighting the challenges and short-range applications of 60GHz systems.
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