Topband: Vertical choke needed?

[Artek Manuals]

Kenny

My personal experience with radials on the ground is that with a fair 
number (16 or more) that I end up with little if any common mode 
currents on the coax . Smaller (numbers of)� ground mounted radial 
counts could benefit somewhat from a choke, depends on other factors� 
besides the number of radials like relative ground conductivity.

Not hard to measure see 
https://forums.qrz.com/index.php?threads/measuring-common-mode-current.623054/page-2. 
you can make a simple common mode choke and do a before and after to see 
the relative change..if any

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

Dave
NR1DX



On 12/31/2020 7:15 PM, Kenneth Silverman wrote:
> Hello, I have an inverted-L and the radials are laying on the ground AND
> the coax is on the ground too with radials right near the coax run. Do I
> need a choke to stop any feedline coupling/radiation, and if so, where in
> the feedline?
>
> The antenna is in the woods so burying either the radials or coax won't be
> easy.
>
> Many thanks, Kenny K2KW
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband 
> Reflector

-- 
Dave Manuals at ArtekManuals.com www.ArtekManuals.com


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