Andy, You just simply pull rope through the aluminum tubing elements and cut it to length. You might secure the ends so the rope doesn't come out or bunch up in an end. Mike W9RE
I have had read somewhere on this reflector that in order to damp element vibration in the wind you have to insert rope inside the elements. I am just about to install my Mosley TA36 with 40M kit and
Hi Andy, I have rope inside every element on all my antennas. Although there are many ways to do this, I chose a method that is pretty simple and low cost. I went to Home Depot and bought about 100'
What I have used in the past was a piece of 1/8" Dacron rope about 3' long. I inserted it into the end of the element. I folded over part of the rope and pushed the end cap on to hold the rope in pla
I have noticed that most everyone uses rope in the elements to dampen element vibration, but it is not a cureall. I have used this idea as well, but have had mixed results. Both my 5 element Hygains
Interesting Bill. Not sure why you had that experience. At my qth, I double hoseclamped every place on each element that previously used one hoseclamp. I then used a pair of "dykes" to cut off the en
Contrary to what others have said... get the heaviest, thickest rope you can slide into the element and still have room for it to flop around. I like a tight nylon braid or old hemp/sisal because its
I believe the "secret" that Force12 and other more modern designs employ is to use aggressive steps from one element diameter to the next at the element tubing joints, instead of the more gentle step
...with riveted elements I have never had a tip fall out! My HyGain and Cushcraft beams have all been modified to riveted element construction, which also do NOT snag on the guy wires on the way up!
and construction, What is really fun with bad vibration cases is that the element tips fatigue and break off. I have had that happen with both the newer telrex designs and cushcraft... no double hos
Dont listen to the critics, getting a TA-33 to perform like a 5 element 20M monobander is actually pretty easy, just follow the steps below. 1. Load your favorite antenna design program, and design a
Hi all, concerning the vibration I do have experience that vibration is also very dependent on the behavior of the tower. We had an antenna that behaved fine on one tower for years. When moved to oth
I hesitate to recommend rope in ALL antennas, but to see how Hygain does it, check out any of their HF monobanders' manuals http://www.hy-gain.com/ As far as I could tell, Hygain's tribanders don't m
Any round element will vibrate in the wind...simple mechanics and aerodynamics (shed vortices), and forms the basis of such things as aeolian harps. The vibration might not be noticable, or it might
List members: The phenomina you are witnessing is called vortex shedding or oscillation. It is a function of natural frequency of the element, in this case a cylindar with l/d >25, and the weight per
Hello Hank, Thank you very much for the content of this message. I suppose their will be no more bad formulated questions neither answers, with this message in mind. I told Jim SMxxxx, If one ask you