Take-off angle is critical, as is received noise. I used to have 7/7 at 6M, at 160'/140'. It heard every bit of RFI for 35 miles in each direction, and I was regularly beat by folks with smaller antennas, at MUCH lower elevations. I finally realized what was going on when I compared it to my 6M antenna at 40'. I ended up removing the 7/7 stack.
Yes and part of the issue with a stack (as seen in the video) is the elevation angle s low and very narrow too as a result of the compression caused by the vertical stack.
What's your thoughts on multi element 50 ohm delta loops for HF VHF. My thoughts are to help reduce QSB with incoming signals with changing hoz and vert polarisation with 2 sides of the antenna at 45 deg. Over the years I have noticed signals coming over the equator into the southern hemisphere have large fast changes in polarisation. You can be on a yagi and hear nothing switch to the vertical and Europe is S9+20. Mostly see this happening on 6m - 20m. Its a fascinating subject. Your thoughts on this would be great as it can sometimes reduce openings by hours if you do not have the correct antennas.
I have made them for HF and for commercial use. the biggest a 4el for 15MHz for a government in the far east. this was the twin-boom method running 50KW continuously.
how would a 4 h frame stack look on 6m horistontal and 6 vertical stack 4 5 el of 4m plus booms from 18m down 3 options top 2 bottom 2 and all 4 is equal stacking ok and what are the best options on switching
Take-off angle is critical, as is received noise. I used to have 7/7 at 6M, at 160'/140'. It heard every bit of RFI for 35 miles in each direction, and I was regularly beat by folks with smaller antennas, at MUCH lower elevations. I finally realized what was going on when I compared it to my 6M antenna at 40'. I ended up removing the 7/7 stack.
Yes and part of the issue with a stack (as seen in the video) is the elevation angle s low and very narrow too as a result of the compression caused by the vertical stack.
What's your thoughts on multi element 50 ohm delta loops for HF VHF. My thoughts are to help reduce QSB with incoming signals with changing hoz and vert polarisation with 2 sides of the antenna at 45 deg. Over the years I have noticed signals coming over the equator into the southern hemisphere have large fast changes in polarisation. You can be on a yagi and hear nothing switch to the vertical and Europe is S9+20. Mostly see this happening on 6m - 20m. Its a fascinating subject. Your thoughts on this would be great as it can sometimes reduce openings by hours if you do not have the correct antennas.
I have made them for HF and for commercial use. the biggest a 4el for 15MHz for a government in the far east. this was the twin-boom method running 50KW continuously.
how would a 4 h frame stack look on 6m horistontal and 6 vertical stack 4 5 el of 4m plus booms
from 18m down
3 options top 2 bottom 2 and all 4 is equal stacking ok and what are the best options
on switching
dont u answer your comments annymore
i ask 2 years ago no reply yet?
🥲