On Mon, 27 Jan 2020 16:13:31 +0000, you wrote:
All the data he presents in the referenced paper uses 31 material.
..........
Amidon recommends material 26.
Suppose they know why.
Please do not look up old data from 1945 publications,
go for the modern technology of today.
Material 43 is out, 73 is out,
they do not cover the whole range from 160 to 6 meters.
Not even in combination.
OE8UWW
