On Mon, 27 Dec 2004 09:26:57 -0800, Bill Turner
wrote:
but if there is severe impedance variation across a
channel, you will have a lot of ghosting in the picture

Hi Bill,

Actually, ghosting is path problem where two signals time lag
(reckoned by distance traveled by different paths - at least 100s of
meters if not km) present the viewer with two pictures.

The impedance variation gives rise to color distortion, smearing, due
to relative phase shift and/or BW clipping.

73's
Richard Clark, KB7QHC