"Jeff" napisal w wiadomosci
...


As I said in one of my other posts: That does not describe a 'normal'
balanced dipole, which is fed at the centre. It is the description of a
very special case where a 1/2 wave length radiator is 'end-fed'. It is
not
what people normally mean when the refer to a dipole, although it is a
1/2
wavelength radiator fed against ground

"Physic Principle An End Fed Half Wave Length Antenna is a variation of
the
much more common half wave length dipole antenna. When an antenna that is
one half wave length long has RF energy applied to it at its resonant
frequency a standing wave develops on it."

The earth is connected at the node. "A node is a point along a standing
wave
where the wave has minimal amplitude."

Does ""Large constructed half-wavelength dipole towers include the Warsaw
radio mast - the only half-wave dipole for longwave ever built." needs
the
ground?
S*

No, the 1/2 wave radiator does not need a ground, however, because of the
way they chose to feed the 1/2 wave, the feed system does. If they had
chosen the insulate the tower half way up and feed it there no earth would
have been required at all.

The tower insulated half way up and feed there are the two monoples.
It is the array.
But such are in form of the two monopole mast 1/4 wave apart.

Will be better to end the discussion.
S*