Topband: Vertical choke needed?

[n0tt1 at juno.com]

To offer another view.....IMHO
Measure the impedance at the base of the antenna without the feedline
attached in any way.  While watching your instrument (259B, VNA, etc),
touch the feedline *shield* to the radials at the base of the antenna. 
If your instrument shows
no change in the impedance, the feedline shield isn't carrying "any"
current
and therefore doesn't need to be choked.

73,
Charlie, N0TT

On Thu, 31 Dec 2020 19:49:43 -0700 Wes <wes_n7ws at triconet.org> writes:
> I have the same situation and no choke.  IMHO the transmission line 
> is just 
> another random length radial.  I don't have chokes on any of the 
> others either.
> 
> Wes  N7WS
> 
> 
> On 12/31/2020 5:15 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
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