Art Unwin wrote:
'I see no discontinuety at the ends of the antenna so the law on
discontinuity does not apply..
I do see a discontinuity in a transmission line so the laws on
discontinuity do apply..

A #14 horizontal wire 30 feet above ground is a "single-
wire above-ground transmission line" line with a
Z0 = 138*log(4D/d) = 600 ohms where 'd' is the diameter
of the wire and 'D' is the height above ground. The ground
is the other half of the transmission line.
--
73, Cecil http://www.w5dxp.com

On Jan 5, 6:24*am, Cecil Moore wrote:
Art Unwin wrote:
'I see no discontinuety at the ends of the antenna so the *law on
discontinuity does not apply..
I do see a discontinuity in a transmission line so the laws on
discontinuity do apply..

A #14 horizontal wire 30 feet above ground is a "single-
wire above-ground transmission line" line with a
Z0 = 138*log(4D/d) = 600 ohms where 'd' is the diameter
of the wire and 'D' is the height above ground. The ground
is the other half of the transmission line.
--
73, Cecil *http://www.w5dxp.com

Common aurgument revolve about accounterbility for surrounding
fields. Your " transmission line" is hardly a conventional one to use
in such auguements
But then again my abilities in this area are not sufficient for
auguement or debate which is why I ask questions
Best regards
Art