Topband: Best 160 antenna
tony.kaz at verizon.net
Mon Aug 28 14:14:13 EDT 2017
Question on the choke balun. I am using a Comtek 100 bead over RG-400
feedline choke on my shunt fed tower. Would there be a noticeable difference
by replacing with a stack of ferrite cores and several turns of coax?
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Mike
Sent: Sunday, August 27, 2017 3:11 PM
To: Mike Furrey <mikefurrey at att.net>
Cc: gary mankoff <garyjm88 at gmail.com>; topband <topband at contesting.com>
Subject: Re: Topband: Best 160 antenna
The importance of a ferrite choke balun at the feedpoint cannot be
overemphasized. A good design for 160m is 5 or 6 turns of coax wound through
five stacked 2.4" 31-material ferrite toroids. Photos and details on my web
pages referenced earlier.
I had two elevated radials. It is a well-established fact that four 10' or
12' high 1/4 wave radials are as good as 120 on the ground.
On Aug 27, 2017 12:53 PM, "Mike Furrey" <mikefurrey at att.net> wrote:
For many years I used an inverted L between two tall pine trees and one
elevated radial that was L shaped to fit on the 90' x 60' lot I had in
Spring, TX. The radial was about 15' up and it was fed through a choke
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