Szczepan Bialek wrote:

"Ian" napisa³ w wiadomo¶ci
...
"Szczepan Bialek" wrote in message
.. .

In your literature is wrote that "monopole with the counterpoise works
like the dipole". But in your literature the dipole means the mechanical
symmetry.

Hello Szczepan. Which amateur radio book said that "dipole" means the
"mechanical symmetry", please?

"A dipole antenna is a radio antenna that can be made of a simple wire, with
a center-fed driven element. It consists of two metal conductors of rod or
wire, oriented parallel and collinear with each other (in line with each
other), with a small space between them. "

As you see Your dipoles are mechanically symmetrical.
It can works as the monopole or as the dipole. It depends on electrical
connections.

It seems you are using theories that apply to DC electronics (like
"it is connected to ground so it has zero voltage") to HF.

This is wrong. Even when you feed a dipole with a coax, there still
is almost symmetrical voltage on the two connections, even though the
braid is connected to one pole and the other end of the braid may be
grounded.
The result is that there is voltage on the outside of the braid, the
coax becomes part of the antenna and the radiation pattern changes.

But it will not be a monopole. If anything, it is a tripole.

Of course, nobody in their right mind would to that. Use a balun.