On 26 Mar, 21:49, (Richard Harrison) wrote:
Art wrote:

"Any thoughts as to why it sgould be so and the scientific facts to
support it?"

We have plumb lines and bubble levels which allow easy determination of
vertical and horizontal directions.

We often inhabit a nearly horizontal plane

If we are as likely as not to communicate with any particular direction,
an omidirectional vertical antenna makes sense. An inclined wire would
favor some direction to the detriment of another. Sure a slopimg wire
works but doesn`t reach maximum height or length as effectively as a
vertical or horizontal wire would.

Why a straight dipole and not a V-shaped element? The V-shape corrupts
the nulls at the ends of the straight wire.

Vertical and horizontal antennas are not solely accidents of history.

Best regards, Richard Harrison, KB5WZI

But the question is why?
If you read thru the antenna handbooks they use vectors extensively
but when it gets to take off angle there is no vectorial explanation
of what determines TOA. I would like to see a vectorial explanation
for TOA starting off with the two vectors eminating from the radiator
which are relavent to the radiator angle with respect to earth. I also
would like to see vectors that emulate propagation advantages
following earths magnetic lines as apposed to those at right angles
but as yet I have not tracked any down in the books. You refer to
horizontal anternnas as not being "accidental" suggesting mathematical
analysis
yet I am not finding any documented proof other than emperical work.
Time and time again this group will provide long threads regarding the
mathematics of SWR, virtual this and that, tower wind loading,
frequency,
dielectrics yet when it comes to the very basics of a current passing
along a conducor as a vector or just plain mathematics every bodies
eyes just go blank. Is this something that is to hard to demonstrate
or something hams don't care about until it is written in a book which
we can then regurgitate?
Art