On Wed, 13 Dec 2006 22:44:38 -0000, "David" nospam@nospam wrote:

The books also say
If antenna is horizontal and close to ground plane, the image cancels out
wave emitted by antenna.

Hi David,

Your sources are pretty crummy. This information is quite in
contradiction with the operation of a halfwave horizontal a
quarterwave above earth, isn't it? A simple EZNEC model will reveal
this clearly.

Is this what happens in real life?

Umm, no.

It is known that if the 2 conductors of
twin feeder are close together, the fields cancel out and there is very
little radiation.

Not the same thing.

Are you saying that electromagnetic theory is wrong?

Who is "you?"

What about fibre optic
cable? If ordinary glass strands were used, when the cable was bent, the
light would be blocked and not travel any further.

I've worked with a lot of fiber optics, and that statement simply
doesn't make much sense. Ordinary and un-ordinary glass (as well as
plastic) strands work differently by degree, not differently by
theory.

73's
Richard Clark, KB7QHC