Topband: Ground radials

[N7DF]

We ran some extensive tests comparing current flow in ground radials 
we found that the current flow in an elevated radial with a surface radial directly below it was significantly greater than in the elevated radial alone
The current flow in the elevated radial alone was also greater than the current flow in the surface radial alone
the current flow in the surface radial was the same with the elevated radial over it as without the elevated radial
We didn't try with buried radials but I feel sure that the results would be the same
based on our measurements I would definitely say that placing elevated radials above surface or buried radials is a good idea
All the radials were an electrical quarter wavelength