[TowerTalk] M2 40M3FS element tip problem
df3kv at t-online.de
Thu Aug 10 07:45:09 EDT 2006
Your problem is quite common with small diameter element tips.
Insert some rope into them and the vibration and element failure will stop.
I did that with my HyGain beams and have no problem anymore for 20 years.
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of W3TX
I have a full sized M2 40M3 yagi at 120ft. It's been up about 5 years. The
distal element taper is aggressive, ending with a 3/8 inch diameter tip on
each of the six elements. Too small in hindsight!
The 3/8 inch element tips are failing (it appears from a vibrational
mechanism). It's disconcerting tofind a 20 to 30cm section of aluminum with
the mower blade :-)
Q1). Has anyone else had this problem with the M2?
Q2). Has anyone else modeled and/or implemented a less aggressive taper
ending at 1/2 inch distal tips?
Thanks in advance...
73, Scott W3TX
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