Topband: Vertical choke needed?

[Mike Waters]

On Thu, Dec 31, 2020, 9:10 PM Artek Manuals <Manuals at artekmanuals.com>
wrote:

> Elevated radial systems NEED a choke ..PERIOD. Been there , done that,
> got the RF burns to prove it...8^(
>

You bet they do! Otherwise, the coax feedline on the ground seriously
degrades the antenna's performance! I don't recall anyone mentioning this
important fact in these recent threads here.

See
https://web.archive.org/web/20180815141931/http://w0btu.com/160_meters.html,
partway down the page; and the links about elevated radials below the
graphs at
https://web.archive.org/web/20180815154501/http://w0btu.com/Optimum_number_of_ground_radials_vs_radial_length.html

These are must-reads for anyone with elevated radials, IMHO.

73 Mike
W0BTU