Mike, All ¼ wave verticals have the same elevation angles. The question is what is the feedpoint efficiency which is dominated by the ground. That ground is a combination of your soil characteristics and the radial field design. In my opinion, 2 elevated radials about 5 ft above the ground is a poor ground system for good performance. Elevated 160M radials really need to be more like 20 25 ft above the ground to be efficient. Otherwise, my experience has been you are way better off putting a lot of them on the ground vs a few in the air below 10 ft.
One thing to try is take a Z + R reading at the actual feedpoint as it is now and add 2 more radials. If the R drops by more than 0.5 Ohm, then keep adding. I started with an R of about 24 Ohms with 4 radials on the ground and got it down to 12 Ohms by adding radials. I have 44. I could not see any difference with the last 4 so I stopped. I have 2 T top verticals in phase and they are 260 ft apart. And the same result occurred on both. That is highly a function of my rocky (Granite) soil here. 73 Ed N1UR _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
