I'm going from memory so... I've seen a video of a simple detector. In the
video the guy ran along the feedline while transmitting low power. You could
see if there was a signal on the outside of the cable. I'll look later to see
if I find. Fred KB4QZH
-------- Original message --------From: Raymond Benny <rayn6vr@gmail.com> Date:
5/28/20 3:21 PM (GMT-05:00) To: Cc: 160 <topband@contesting.com> Subject:
Re: Topband: 160M shunt fed choke One way to tell if a choke is needed I would
think, is to add say, a randomlenght of coax, 20 - 40 ft, to the shack end of
you coax and see if yourSWR changes. If so, then a then a choke could help.Jim,
does this sound like a reasonable test? I'm no expert on verticalantennas, just
my experience.Ray,N6VR/W7YAOn Thu, May 28, 2020, 11:42 AM Jim Brown
<jim@audiosystemsgroup.com> wrote:> I'd guess that you're probably fine without
the choke.>> 73, Jim K9YC>> On 5/28/2020 11:06 AM, tony.kaz@verizon.net wrote:>
> Hi Jim,> > In ground radials - 60. Length 60-100' depending on direction due
to a> close> > in stone wall in one direction.> > All the coax is buried and
all the shields are tied to the tower legs> about> > a foot up the tower after
the leave the ground.> >> > N2TK, Tony> >> > -----Original Message-----> >
From: Topband <topband-bounces+tony.kaz=verizon.net@contesting.com> On> >
Behalf Of Jim Brown> > Sent: Thursday, May 28, 2020 1:37 PM> > To:
topband@contesting.com> > Subject: Re: Topband: 160M shunt fed choke> >> > On
5/28/2020 8:57 AM, tony.kaz--- via Topband wrote:> >> Is there a potential
benefit to adding a ferrite core choke for this> >> type of setup?> >> > What
do you have for a radial system? That's the primary determining> > factor. The
choke prevents the coax from being used as a radial. If you> have> > a robust
radial system, that's far less of an issue.> >> > 73, Jim K9YC> >
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