Extra exam question E9H06
Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9H
What indicates the correct value of terminating resistance for a Beverage antenna?
- A.Maximum feed point DC resistance at the center of the desired frequency range
- B.Minimum low-angle front-to-back ratio at the design frequency
- C.Maximum DC current in the terminating resistor
- D.Minimum variation in SWR over the desired frequency range (correct answer)
WhyThe correct terminating resistance for a Beverage antenna is indicated by the value that produces minimum variation in SWR over the desired frequency range. The correct terminating resistance for a Beverage antenna is indicated by whatever value produces the minimum variation in SWR across the desired operating frequency range, since a properly terminated traveling-wave antenna should present a fairly consistent impedance over a wide bandwidth, answer D. Maximum feed point DC resistance, minimum low-angle front-to-back ratio, and maximum terminating-resistor current aren't the criteria actually used to find the right termination value.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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