Amateur Extra · FCC ELEMENT 4

E9C01

Amateur Extra · FCC Element 4 · answer reveals automatically

What type of radiation pattern is created by two 1/4-wavelength vertical antennas spaced 1/2-wavelength apart and fed 180 degrees out of phase?

AnswerA figure-eight oriented along the axis of the array

Two quarter-wave verticals spaced one-half wavelength and fed 180 degrees out of phase produce a figure-eight pattern oriented along the array axis.