VE4EAR: "I know that many of us surbanites use slopers for our low band
antenna component. There also seems to be some contradictory advice on
the need for radials on these antennas."
No doubt. Every installation is different. Depending on height of the
tower and what is on it, there can be lots of ground loss or little
ground loss. In some cases radials will help a lot, in other cases they
may be insignificant.
VE4EAR: "Has anyone ever made any real world measurements on these
antennas, with and without radials, and how performance may be impacted?"
I don't know, but it would only be of benefit to the person that has the
antenna that the measurements were taken on. If you want a general
rough answer, it's likely that a short tower (maybe 50-70 ft) with lots
of top loading would benefit significantly from radials on 160. A 100
ft tower with significant top loading is in the region where a sloper
can work very well on 160 with low ground loss (but that's no
guarantee). A short tower with little top loading works a lot like an
inverted vee with a very acute angle and one leg of the vee tied to ground.
Jerry, K4SAV
Ed Richardson wrote:
> I know that many of us surbanites use slopers for our low band antenna
> component. There also seems to be some contradictory advice on the need for
> radials on these antennas.
>
> Has anyone ever made any real world measurements on these antennas, with and
> without radials, and how performance may be impacted?
>
> Ed VE4EAR
>
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