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CWNP Exam CWISA-102 Topic 5 Question 20 Discussion

Actual exam question for CWNP's CWISA-102 exam

Question #: 20
Topic #: 5

[All CWISA-102 Questions]

What factor severely limits the range of systems operating in the 60GHz band?

AAtmospheric Scattering

BSolar Radiation

CRain Fade

DOxygen Fade

Show Suggested Answer

Suggested Answer: D

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.

by Muriel at Sep 14, 2024, 02:43 AM

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Bobbye

16 days ago

Hey, at least it's not B) Solar Radiation. Can you imagine trying to get a 60GHz link to work during a solar flare? That's like trying to text during a lightning storm.

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Izetta

17 days ago

I'm going with C) Rain Fade. Gotta love how 60GHz signals are more sensitive to water than a cat to a bath.

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Alecia

18 days ago

A) Atmospheric Scattering, for sure. Those 60GHz signals are about as directional as a fire hose. Good luck hitting your target!

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Elinore

21 days ago

D) Oxygen Fade, no doubt. I heard it's like running a Wi-Fi network inside a giant oxygen tank. Challenging stuff.

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Lettie

4 days ago

A) Atmospheric Scattering can also have a big impact on the range.

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Shawnda

26 days ago

Definitely C) Rain Fade. I've seen those 60GHz links get wiped out by a light drizzle.

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Staci

27 days ago

Oxygen fade? More like oxygen overload. That's what I'll be if I have to study one more obscure wireless topic for this exam.

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Lashunda

29 days ago

Solar radiation? Really? I thought that was more of an issue for satellite communications, not terrestrial systems. This exam is testing some weird stuff.

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Lacresha

16 days ago

A: Yeah, solar radiation can actually affect terrestrial systems operating in the 60GHz band.

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Loreta

1 months ago

Rain fade, for sure. I mean, who wants to set up a 60GHz network in the middle of a monsoon, am I right?

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Karan

1 months ago

Hmm, I'm not sure. Could it be the oxygen fade? I heard that's a real problem in that frequency range.

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Leonardo

3 days ago

Actually, it's not just oxygen fade, rain fade is also a significant limitation in that frequency range.

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Joesph

7 days ago

I think you're right, oxygen fade is a major factor that limits the range in the 60GHz band.

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Carey

1 months ago

But Oxygen Fade absorbs the signal more, causing a greater limitation in range.

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Derrick

1 months ago

I disagree, I believe it is Rain Fade that limits the range.

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Carey

1 months ago

I think the factor that severely limits the range of systems operating in the 60GHz band is Oxygen Fade.

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Basilia

2 months ago

Definitely atmospheric scattering. That's like a no-brainer for 60GHz systems!

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Benedict

21 days ago

Absolutely, understanding the impact of atmospheric scattering is crucial for successful implementation.

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Charlie

25 days ago

I think it's important to consider this factor when designing and deploying 60GHz systems.

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Bong

1 months ago

Yeah, it can really affect the range and performance of the systems.

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Jolene

1 months ago

I agree, atmospheric scattering is a major limitation for 60GHz systems.

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