On 11 Jan, 06:18, Cecil Moore wrote:
On Jan 10, 11:34 pm, art wrote:

We haven't moved forward a bit on that first sentence of the other
post which is " what created the reflecting voltage" of this resonant
radiator when it is a fractional wavelength or a electrically full wave length?

The characteristic impedance of the horizontal wire above ground is in
the neighborhood of 600 ohms. The "load" impedance at the end of the
wire can be considered to be infinite. The reflection coefficient at
the tip of a dipole is 1.0, i.e. all the forward voltage is reflected
in phase. This is true no matter what the length of the dipole. The
round trip delay that the forward wave makes can be used to get a fair
approximation of the feedpoint impedance using transmission line
equations and assigning an appropriate value to the alpha loss factor
which not only includes real losses but also "losses" due to
radiation.
--
73, Cecil, w5dxp.com

Thanks for the reply Cecil which has opened my eyes regarding the
trend of your thoughts.
Try to change your thinking to the following. An alternating current
is created by a generator
that moves in a circular fashion. The + and _ functions are a
mathematical tool obtained by the sine .cosine etc. This is a measure
ONLY of the amplitide only at a particular point in time. If you put a
scope on it you will see a wave like function only because your eyes
e.t.c.
is not fast enough to take more samples at the point in question. Thus
it is an illusion to think of forward travel. Another way of looking
at it is to stand in the center of a football field and watch the
spectators stand up in sequence. At any point of what you are viewing
you /
your eye mechanism,are seing a movement upwards at a single position
at a single point in time.
At no time is there anything moving forward thus this reflection of
yours cannot occur.
I think we can end out interchange at this point
Very best regards
Art Unwin KB9MZ....xg(uk)