I guess I'm in an even smaller group of hams. I lost half an element on my 20 meter beam in Colorado 25 years ago. The antenna was at 120' just above the thrust bearing. Unfortunately, the broken el
A "multi-monoband yagi" is simply a structure with more than one monoband yagi on a single boom. It is "monoband" because each element is resonant only on a single band. It is "multi-" because there
I've had a Sigma 80 in operation for 4 months and love it. It is mounted HORIZONALLY on a rotor at 80' here at my ridgetop location. (You would obviously want it higher in locations with flatter fore
In John's younger days, he simply grabbed the ground rod with one hand and yanked it out. 73, Ed - W0YK _______________________________________________ See: http://www.mscomputer.com for "Self Suppor
The list does reply to the list. It is up to you to choose "Reply" or "Reply All" in your email software: 1. "Reply" goes to the individual sending the original post, to facilitate off-list comments.
One comment that I hear consistently from owners of crank-up towers is that their spouses and neighbors find them much more objectionable when the tower is nested with the antennas closest to the gro
In this case, I simply mount the Yagi to one tower leg, as you would to a mast. Orient in the desired direction. Then, I attach an angle iron (or aluminum) from the boom (with a U-bolt) to another t
I don't know about the original post, but what's written below sounds similar to what I do ... Parts: UHF F-F barrel adapter, copper pipe reducer and SS hose clamp. Take the barrel adapter and a shor
What is your favorite winch for tramming antennas up/down a tower? Power or hand crank? Thanks, Ed - W0YK _______________________________________________ _____________________________________________
You can certainly mount the loading wire support to the mast. But that means you will have to assembly half of the linear loading wires on the tower to get them on the opposite side of the mast. Ano
I agree with this "Directive" in general, but sometimes exceptions can make sense. When dismantling three highly corroded towers in Aruba two weeks ago, I opted to remove the top section (of Rohn 45
I've used an AEA CIA for years. It goes up the tower with me and on expeditions. It is a tremendous time-saver to see the VSWR, impedance and other parameters in graphical format across a portion of
The biggest issue is detuning of the 20m Yagi by the 80 dipole. This can be greatly reduced by opening the feedpoint on the 80 when operating on 20. This is easily done with one of the relays in the
LMR-400 rotor loops work great here. Maybe our definition of "rotor loop" is different, though. My rotor loops are horizontal and wound around the mast at the top thrust bearing, laying on the top pl
Barry, N1EU, asked: N6BT always advised me to put three rivets at each location, 120 degrees apart around the element. On smaller diameters, only two may be possible and even they may have to be stag
One and a half elements blew/broke off my 5-el 20m Yagi. It has been up for 7 years through stronger winds than this. The prop pitch and other Yagis seem to have survived OK. Winds built to 60+ mph w
I use Romex for the motor and RG6 for the encoder. They are inexpensive alternatives that work well. Ed W0YK _______________________________________________ __________________________________________