Topband: 160M shunt fed choke

[fmoeves]

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 at gmail.com> Date: 5/28/20  3:21 PM  (GMT-05:00) To:  Cc: 160 <topband at 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 at 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 at 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 at contesting.com> On> > Behalf Of Jim Brown> > Sent: Thursday, May 28, 2020 1:37 PM> > To: topband at 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> > _________________> > Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector> >>> _________________> Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector>_________________Searchable Archives: http://www.contesting.com/_topband - Topband Reflector