CWNA-108 Exam QuestionsBrowse all questions from this exam

CWNA-108 Exam - Question 8


What statement about the beamwidth of an RF antenna is true?

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Correct Answer: A

Horizontal and vertical beamwidth are calculated at the points where the main lobe decreases power by 3 dB. This definition is standard in RF engineering, where the 3 dB point is used to define the beamwidth of an antenna.

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Dat1992Option: A
Aug 31, 2023

A is correct. 7. Beamwidth is measured at the points where the main lobe decreases in power by 3 dB. The horizontal beamwidth is typically shown on the Azimuth chart and the vertical beamwidth is shown on the Elevation chart. When the gain of an antenna increases, the beamwidth decreases. When the beamwidth increases, the gain decreases.

brendaribonOption: A
Dec 20, 2023

A. CHAPTER 4 - PAGE 151 (Official Study Guide) "Antenna beamwidth is calculated horizontally and vertically where the signal drops by 3 dB."