Hello low banders. My name is Jaan and I have been reading all kinds of interesting things regarding propagation, antennas and other topics here on this reflector. I hope to receive some valuable com
On 4/23/2014 5:15 AM, Jaan Jürgenson wrote: I could think of isolating the guy wires or replace them for non-conductive type. I'm not sure if it possible to isolate the base today. Shunt fed the towe
On 4/23/2014 5:15 AM, Jaan Jürgenson wrote: I could think of isolating the guy wires or replace them for non-conductive type. I'm not sure if it possible to isolate the base today. Shunt fed the towe
Jaan, Before replacing the guys, you might consider trying a gamma match at the bottom end of one of the top guy wires to load the tower and guys as-is. I did something similar on a sailboat for 80 m
Or an easy and fairly good approach is to set up a sloper off the tower. The sloper acts as an inverted vertical ( inverted verticals work better than ground fed ones) and uses the grounded tower as
Yes and no. Although 140 ft may seem high, it's LOW as a fraction of a wavelength on 160M. :) For several years, I had a 160M dipole at 120 ft. In a LOT of A/B testes, an 86 ft Tee vertical nearly al
When I lived in Northern Illinois I had a 110' tower (A fold-over non guyed, aluminium Heights tower). For 160 & for 80 I had shortened delta loops with the 160M apex held off 1' from the top of the
Ive had inverted V's at 60, 160, and 180' that worked DX that a single or a pair of full size sloping verticals with elevated radials couldnt at that particular time. The high angle often favors sunr
I think I would hang a delta loop off of that tower. It would be very slightly squashed. You would not have to worry about matching the tower or installing a radial system. Through in about a db of g
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 24 Apr 2014 13:14:49 -0400
With a grounded tall tower with uninsulated guy wires perhaps the best solution would be to install have wave slopers with at least a 45% angle of declivity and space as far from the guy wires as pos
There's at least one -- it's MUCH easier to work both locals and DX on 160 from New England than from California! Two reasons -- a LOT more locals within range of a mediocre antenna, and an all water
Author: Edward via Topband <topband@contesting.com>
Date: Thu, 24 Apr 2014 11:12:38 -0700
I'm really enjoying this thread. I, too will have to make a decision on how to best utilize my 106' crank up for 160m. The consensus seems to be an Inv L with radials. Any input would be greatly appr
The best antenna is always the one that makes us feel good, no matter how the antenna really works. The problems with most of the suggestions are: 1.) most are anecdotal "feelings", where there were
All points well taken, but this is a particularly important one -- even with the world's best radial system, soil conductivity has far greater effect on vertically polarized antennas than on horizont
Tom, Let's revisit Jaan's original question: Background: What would you recommend? Mike N2MS -- Original Message -- From: Tom W8JI <w8ji@w8ji.com> To: topband@contesting.com Sent: Thu, 24 Apr 2014 20
Tom, Let's revisit Jaan's original question: Background: I have a tower that is 137ft. or 42m tall. It is triangular 1ft 10inches or 40cm wide. The tower is guy wired at three levels with non-isolate