Author: Robert Katz <rob.katz@thelegacycenter.com>
Date: Sun, 2 Jan 2005 12:38:08 -0500
Does anybody have resonance measurements for each element of a KLM KT-34XA? I bought a used one and it doesn't tune up on 15m and 20m. In measuring the resonant frequencies, the front driven element
Author: Robert Katz <rob.katz@thelegacycenter.com>
Date: Wed, 20 Jul 2005 14:05:55 -0400
I've managed to place ropes in two tall trees (~75') about 150 feet apart. I want to string a half square on pulleys between these trees, with a horizontal wire between the trees and then a vertical
Author: Robert Katz <rob.katz@thelegacycenter.com>
Date: Tue, 8 Aug 2006 17:47:04 -0400
Hello all, Does anybody have an EZNEC file for the 40 meter beam described in May 1998 QST by NW3Z and WA3FET? This is an interesting design with a full size driven element and wire elements for refl
I have a Trylon 72' tower that I'm installing this summer, and I have the "base foot weldments" (these are feet that bolt to the bottom tower section and then bolt to rod that is sunk in the ground).
I am in the process of obtaining a permit to put up a 70 foot tower, and I have been requested to "Provide evidence that the tower complies with FAA regulations and does not present a danger to navig
Author: Robert Katz <rob.katz@thelegacycenter.com>
Date: Wed, 09 Jul 2008 22:58:08 -0400
I'm trying to cut some 40m 1/2 wavelength lines of 300 ohm ladder line using my MFJ 259B, and I noticed an odd problem. When adjusting the frequency (the line was shorted at the far end), the reading
I use trailer wiring connectors with good success. I take two of the flat 4-wire connectors and tape them tight together to make 8-wire connectors. They are waterproof and rugged, made to take the ab
I am putting back up a Cushcraft A3S tribander after it was on the ground for several years. I've cleaned it and rebuilt it, triple checking the dimensions. Installed at 45 feet, I get the following
Iım debugging some coax runs to my beverage antennas, and I suspect water ingress in some sections. Iım thinking that I can measure the coax loss in the sections of coax (a couple sections for each f
I'm going to be installing a 20' heavy steel mast in my tower (a Trylon 72' self-supporting tower). I will be renting a crane to lift the mast and drop it from above. What kind of rigging do I use on
Im playing with some wire yagis, and Id like to put relays at the ends of the parasitic wires to switch the director to a reflector (and vice versa). If Im driving the antennas with a full 1.5 KW, wh
Thank you Hardy and everybody for your responses. Ive built many wire yagis that are loaded in the middle. Im looking to put up a new 3-el on 40m with a rope catenary as the boom, so I want to elimin