Vertical antenna at ground with 12 radials compared with elevated position with 1 radial. Part 2.

[@n4lq]

I believe the radiation pattern difference is the key to understanding. With the ground radials you have nothing but very low take-off angle while with elevated radial you actually have an L antenna which has both low and high angle radiation providing a more universal pattern. Really, the only situation where a 1/4 wave vertical using ground radials is superior is for local coverage on the AM BC band. Thank you for doing this hard work.

[@Kinetic79]

Ham radio Olympics 😄

[@bodstrup]

what is the horizontal axis on the line graphs ? Thought frequency - but don’t quite match the range I expected

[@CrazyChekov]

horizontal axis is the test/sample number and vertical the average SNR up to this sample