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

The number of radials is the power dependent. More power radiated more
electrons must be taken from a ground.
Do you agree?
S*
Good morning Szczepan.
Here are two questions for you to ponder:
How many radials are needed for a receiving aerial?

It is power dependent.

Are liquids massless?

Ask Heaviside.

Here is something to learn - the monopole and dipole are two different
aerials.

I did:
"The dipole antenna, which is the basis for most antenna designs, is a
balanced component, with equal but opposite voltages and currents applied at
its two terminals through a balanced transmission line (or to a coaxial
transmission line through a so-called balun)."

The dipole antenna is the two monopoles.

" The vertical antenna, on the other hand, is a monopole antenna. It is
typically connected to the inner conductor of a coaxial transmission line
(or a matching network); the shield of the transmission line is connected to
ground."

If the antenna has the two legs and the one leg is connected to the shield
of the coax we have the monopole.

"In this way, the ground (or any large conductive surface) plays the role of
the second conductor of a dipole, thereby forming a complete circuit.[3]
Since monopole antennas rely on a conductive ground, a so-called grounding
structure may be employed to provide a better ground contact to the earth or
which itself acts as a ground plane to perform that function regardless of
(or in absence of) an actual contact with the earth." From:
http://en.wikipedia.org/wiki/Antenna_(radio)

So: " It means that a dipole fed from a coax is the monopole (a quarter
wave) with the counterpoise." is right.
Do you agree?
S*




Regards, Ian.