Subject: Re: Topband: [Bulk] Top Loading wires
It's a 90 foot tower he is describing.
Sent from my iPad
On Feb 4, 2015, at 12:11 PM, Charlie Cunningham
charlie-cunning...@nc.rr.com wrote:
Gee, I surely agree with Grant, Larry! I've used EZNEC for MANY years, with
great results, and I've
On 2/4/2015 7:27 AM, Larry - K1UO wrote:
Could someone tell me the length of top loading wires (4 wires planned)
needed to add to the top of a base insulated 90 foot Rohn 25g tower to
maximize the radiation resistance on 160 meters. I understand there is a
point of diminishing returns on the top
, EZNEC is a GREAT
investment
73,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Grant Saviers
Sent: Wednesday, February 04, 2015 11:28 AM
To: Larry - K1UO; Topband Reflector
Subject: Re: Topband: [Bulk] Top Loading wires
On Wed,2/4/2015 10:52 AM, Paul Christensen wrote:
On 160m, a simple L network network at
the base will get us 50+j0.
For about 7 years, I've tuned my Tee vertical well below the band (by
making the top loading wires longer), raising the drive point impedance
to 50 + jX Ohms. The antenna
On Wed,2/4/2015 11:09 AM, Charlie Cunningham wrote:
T hanks for the correction, Stan. My old eyes missed that!! A 90' tower won't
require much top-loading at all!
Especially by the time you consider 1) it's diameter and 2) the aluminum
on top that is bonded to the mast
73, Jim K9YC
