What would be an acceptable separation between a 40m rotary dipole and a 3 element beam? I can maybe go 8 ft, 7 for sure......I'm fairly certain there would be some interaction, but would it be that
You will almost certainly have to orient the 40 m dipole at 90 degrees to the beam (parallel with the tri-bander boom) to avoid interaction with 15 meters. 5' separation is usually enough. 73, geo -
My TH7DXX is at 72 feet. When I had a 2 el 40 up 6 feet above it I experienced no _discernible_ negative affect on either. Surely there was some, but not noticeable. Don W7WLL 73, geo - n4ua What wou
What band is the 3 el beam ? Ron, WV4P _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.con
The same stub carefully placed as described in this link in the 40M feedline to suppress the second harmonic of 40M will also kill interaction of that 40M dipole with 20M. The first link is text, the
Author: "J. Hunt via TowerTalk" <towertalk@contesting.com>
Date: Fri, 18 Mar 2022 23:26:48 +0000 (UTC)
Have my 40 meter rotary dipole 8' above the quad band beam, parallel with the beams boom, opposite side of the mast pipe. The opposite side cancels some of the shear forces on the HyGain Tx2 rotor.
I dont see how putting antennas on the opposite side of the mast does anything. They are still connected to the same mast and exerting forces in the same direction according to the wind resistance on
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
Absolutely it depends on the antennas involved. Many 40m shortened elements are not resonant on other HF ham bands. John KK9A The answer is likely "it depends on the specific antennas involved". Last