I would like those of you who have yagi antennas out there to share their knowledge on this topic. What is the correct position for a yagi antenna, in windy conditions, to minimize possible damage ?
Paul, your question has be argued for years! But consider the following: If you put the tips into the wind you are easier on the beam as the boom has the most strength. But the windload on the thicke
Based on information that Roger Cox of HyGain has previously posted to the Towertalk group, putting the boom broadside to the wind is best of HF antennas. I'll attach the information below ... but a
For minimum wind loading on the tower/mast I favor element tips to wind (boom broadside to wind). This also minimizes element flexing and/or vibration . Have had several element tips fatigue crack an
I would recommend you get a copy of Dave Leeson's Book, "Physical Design of Yagi Antennas." Dave was W6QHS when he wrote the book and is now W6NL. In it he talks about adding small PVC "elements" to
Hi Paul, This has certainly been the subject of much conjecture et al on 2 meter repeaters for years. Fun stuff eh? No doubt everyone has an opinion about it! The real answer depends on what we are t
Hi Paul, I have been trying to figure something out here also. I got Away from a ground mounted vert for the first time in many years recently and 3 days later we had hurricane force winds for 2 days
Come to think of it, I've had elements break in the wind but NEVER a boom. Hmm!?! Cheers, Steve K7LXC -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com
Hi Paul, I have had a TH6 and a 40-2CD up for many years. With this setup I've determined that the antennas "ride" much better in heavy winds with the element tips pointed into the wind. Also, if the
I have experimented with my 4 el M2 40 meter yagi... I have found that it seems to ride the quietest, i.e. the least amount of visible thrashing, bowing, jerking, torquing the tower, etc., when it is
Hi Denny, Your empirical experience jives with what we have come to learn about wind on yagis. The azimuth of lowest area is somewhere between 0 and 90 degrees. The exact angle depends on the ratio o
[Cooper, Stewart GM4AFF] I agree with the 45deg men. It's not constant wind speed that destroys an entenna, it's the sudden gusts. We get a lot of wind here, and boom at 0 deg really lashes the eleme
Not so fast! He then works through a detailed example of calculations. He also offers software including a WIND AREA module which makes the calculations fairly easy. It is clear that if you have a s
Since you are quoting my post, don't leave out the important part. I posted Roger's listing of boom and element areas for a wide range of Hy-Gain antennas (from the smallest 3 element 10 meter monob
Us with HAZER towers have another entirely different criterion. One has to position the antenna so that if the rotor or thrust bearing fails, one can crank down the HAZER. Otherwise the boom hits the
Not so Fast! Let's try to examine the subject in light of the best available information, not the opinions and emotions of others, as has been suggested. The best and most recent treatise on this sub