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Exam CWNA-108 topic 1 question 4 discussion

Actual exam question from CWNP's CWNA-108
Question #: 4
Topic #: 1
[All CWNA-108 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. 26 dBm
  • B. 13 dBm
  • C. 23 dBm
  • D. 10 dBm
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Suggested Answer: C 🗳️
by Dat1992 at Aug. 31, 2023, 3:48 p.m.

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Dat1992
8 months ago
Selected Answer: C
C is correct 50/2 = 25mW (3db loss) 25*2*2*2 = 200mW (9dbi antenna gain) 200mW = 23dBm
upvoted 3 times
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