[TowerTalk] Opposing boom to mast plates?

[john at kk9a.com]

If this is supposed to reduce twisting forces or stress on the mast (other
than from weight being on one side), I never understood this concept.   I
wish there was a photo or video that explained this.  All of my large Yagis
have always been bolted on the same side of the mast or tower.

John KK9A

  


Steve Maki K8LX wrote:

That's what I used to think, but when shown how the vectors all cancel 
out when the elements AND boom are mounted at their exact centers, I 
became convinced otherwise. Of course boom to mast clamps are often not 
at the boom center, so that throws things off a bit.

-Steve K8LX