How can the antenna efficiency of an HF grounded vertical antenna be made comparable to
that of a half-wave antenna?
A. By lengthening the vertical
B. By installing a good ground radial system
C. By shortening the vertical
D. By isolating the coax shield from ground
that of a half-wave antenna?
A. By lengthening the vertical
B. By installing a good ground radial system
C. By shortening the vertical
D. By isolating the coax shield from ground