[TowerTalk] separation between 40m rotary dipole and 3 element beam

john at kk9a.com john at kk9a.com
Sat Mar 19 11:56:30 EDT 2022


Absolutely it depends on the antennas involved. Many 40m shortened elements
are not resonant on other HF ham bands.

John KK9A


N1BUG paul wrote:

The answer is likely "it depends on the specific antennas involved".

Last year I placed an OptiBeam OB1-4030 about 9 feet above my TH11DX. I 
did not rotate it 90 degrees. The elements are parallel. I am sure there 
is some interaction but I cannot notice a change in pattern or SWR on 
any band.

Paul N1BUG



More information about the TowerTalk mailing list