• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

RD, in my experience with CB vertical antennas at any particular height, as long as both current maximums are close to an equal height, all of my CB vertical antennas tend to be pretty similar in performance. I think this also applies to my experiences with the no radial Imax.


I am right now questioning my own ideas about CMC's however. When DB changed the heights of his models different than mine in this thread...it revealed more of a difference than I expected, and aside from some stupid errors I might have made trying to duplicate his models, it looks like Bob's predictions that CMC's on the mast/feedline does matter, and smacks of truth to me.


That said however, like you may be seeing in operations...I have never noticed a big difference and for years a difference is what my quest has been all about.


Bob's word on CMC does seem to make reasonable and good sense, but I doubted it, because I have never experienced a noticeable difference in my real world comparisons, and I use to do comparisons a lot. The only difference I can see is my real Imax antenna had a tuner that produced a nice match.


DB, I have worked with my models some more and I don't find but one thing I think really effects my attempt at duplicating of your models...and that is the differences in height.


I still am not able to duplicate your cmctest1b pattern noted in red on you post #40...no matter what I do.




I don't know who most others are, but are you in-question here as much as I am?