Originally Posted by Cecil Moore

On Mar 5, 9:25*am, ka7niq wrote:
I got to thinking WHY not take a hustler vertical
with only ONE *Tuned "radial" for each band ...

You are trusting that each radial will be resonant on only one band
akin to a fan vertical antenna. What may happen, for instance, is that
the 40m radial may accept an appreciable amount of energy on 15m and
direct the 15m signal up at a high take-off-angle - less than optimal
for 15m operation. Other interactions are possible, e.g. 28MHz/4MHz=7,
18.14MHz/3.6MHz=5, etc. Any vertical radial resonant at 3/4WL, 5/4WL,
7/4WL, etc. will have a suboptimal effect on the take-off-angle.
--
73, Cecil, w5dxp.com