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Exam CWNA-107 topic 1 question 4 discussion

Actual exam question from CWNP's CWNA-107
Question #: 4
Topic #: 1
[All CWNA-107 Questions]

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9dBi gain, what is the EIRP at the antenna element?

  • A. 23 dBm
  • B. 26 dBm
  • C. 13 dBm
  • D. 10 dBm
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Suggested Answer: B 🗳️
by Ejikman at July 24, 2019, 10:21 a.m.

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buck
Highly Voted 5 years, 2 months ago
CONVERT 50mW = (17dB) -3dB + 9dB = 23
upvoted 9 times
...
Ejikman
Highly Voted 5 years, 4 months ago
Wrong. Correct answer is 23 dBm https://www.everythingrf.com/rf-calculators/eirp-effective-isotropic-radiated-power https://www.rapidtables.com/convert/power/mW_to_dBm.html
upvoted 7 times
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Coolbreeze
Most Recent 5 years, 1 month ago
The correct answer is 23.
upvoted 4 times
...

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