Mindful of Steve's 'Prime Directive' which suggests I absolutely should use the dampening rope in my recently acquired used 155CA, what is the experience of the TowerTalkian brains trust of the need
Hi David, I have used the dampening rope in every single element of my 11 Hygain Yagis (105CA/155CA/205CA) at my extremely windy hilltop qth. I have never lost an element or element tip and I believe
Hi David, Two suggestions.... For the rope, I suggest braided polypropylene it is easy to pull apart the braid and spread it out evenly over the element so that it fits under the element cap without
Hygain uses very thin wall 7/16 diameter element tips attached to a much larger swedged tube. In my experience these elements rattle and break with no rope so it is probably a good idea to use it. I
I used the HyGain supplied polypro rope in 2x TH7DX which survived several New England hurricanes. It's pretty difficult to estimate what wind conditions will excite a vibration and the mutual mechan
On 6/21/2017 2:08 PM, john@kk9a.com wrote: I do not like trapping in water with end caps so perhaps you can fasten the rope using a cable tie. If you are going to use a cable tie, cover it with two o
Whenever I used Poly Rope in the elements, I would use Epoxy. First at the far end, then tension the rope with a weigh and epoxy the near end. Never had a failure. Also, did the same on verticals. Ne
Hi Bob, Do you use the regular Hy-Gain Boom-to-Mast Clamp for your Hy-Gain antennas? 73, Rich, N6KT Two suggestions.... For the rope, I suggest braided polypropylene it is easy to pull apart the brai
Hi Rich, Yes, I do use the regular Hygain Boom-to-Mast Clamp on all of my antennas. I have found them to be very reliable. I have had to replace only three of them in 18 years for 11 antennas. 73 Bob
Thanks to all for the wisdom, both on and off-reflector. Clearly the rope should be used with this antenna, as insurance against the PITA of taking it down to fix a broken element, if for no other re
I have installed a number of 15 meter beams and currently have a 5/5/5 stack... I learned many moons ago that especially the 155 antenna has a wind resonance. on quit days with certain wind speed ( n
If you let the rope stick out 4" from the end of the element and then place the end cap on, how does that work? Or do you mean that once RTV is applied the 4" gets pushed back into the element? Thank
Gary, Sorry Gary I mean the end is flush and glued with RTV and the end cap... it's the other end that has the 4 inch TAIL. to have dampening contact with the adjoining element tube.. Wayne W3EA If y
Hi Wayne, Thanks for the reply. Now I am confused again. Are you saying the 4" tail should run into the next size of tubing that the end tube is attached to? Why wouldn't you run the rope the full le
I have never had any issues with fatigue on the tapered element Hy-Gain antennas. I have had two 105's, a 205 that I converted to 15M (yielding stiffer elements), two 155's and two 204s. However, at
Hi Gary, You run the rope for its full length which goes well into the next telescoping section. I believe that the Hygain ropes come in 6 lengths. 73 Bob KQ2M Hi Wayne, Thanks for the reply. Now I a
I had a lot of problems with the 155CA and the 105CA. This was some time ago but I bought them and stacked them at about 90 feet. Within a couple of months three element ends on the 155 were broken o
Bill, Did you use the stock Hygain screw clamps at the end of the telescoping elements or did you use stainless steel hoseclamps like I do? 73 Bob KQ2M I had a lot of problems with the 155CA and the
It would be silly to not install dampening rope. I place dampening rope in all my elements, even when not called for in the instructions. It is good insurance and easy to do when the antenna is on th
Why would the screw clamp have any effect on the elements braking? The parts website seems to indicate that HyGain uses 0.028" wall thickness on their 20m element tips. http://www.hy-gain.com/Product