[VHFcontesting] Mounting omni loops to tower legs

[Todd and Sandy Sprinkmann]

  On Friday, I'm going to be mounting the Par OmniLoops I have on the side of my house to a better location on the side of a 100' tower.  They are a 2-stack of 6m loops and a 2-stack of 2m loops.

  The tower guy has concerns about how having them mounted to a tower might compromise their pattern or change tuning drastically.  I called Dale at Par and he said that while I might notice the resonant freq. change a little, he emphasized I could mount the loops directly to the tower leg.  

  I'm asking anyone here who has experience with this matter to share their experience.

  The section of tower that we would be mounting to is perfectly vertical, so the loops would be directly above each other, per the instructions from Par.  I plan on keeping the current spacing of roughly 13' for the 6m loops and roughly 4 1/2' on the 2m loops.  I assume (always a little dangerous, hi) that if I simply put the 2m loops proportionately inside the 6m loops (the way I've seen rovers do it) that will be fine.  

  Just concerned about whether the loops should be offset from the tower a certain distance.  And whether if I go ahead and mount them directly to the tower leg, will performance change appreciably.

  Looking forward to replies as the tower guy has some time on Friday,
  73,
  Todd  KC9BQA  EN63ao

  PS:  For those of you who have helped me with various questions over the past year or so, thanks much.  The beams at 100-115' for 50, 144, 222 and 432 are up and ready for some spring and summer propagation.