Topband: Ground loss query (re inverted L, antenna radiation resistance, & Jerry Sevick)

[Rick Karlquist]

wyc wrote:

> Can anyone give the technical reason that ground return path resistance
> seems to vary in proportion with antenna radiation resistance?

> /Bill, K2PO

What you explained is a common misconception.  Folding an antenna
doesn't change the radiation resistance, it just scales the
drive impedance by a factor of 4, including any ground resistance.
It is the same as driving the antenna through a 4:1 impedance
transformer.

Rick N6Rk