I put connectors on a 112 ft piece of 1/2 inch CATV 75 ohm hardline,
connected it to a 50 ohm dummy load, and observed a 1:1 match
on 10, 15, 20, and 40 meters.
de Tom N4KG
On Mon, 20 Oct 1997 12:54:00 -0700 "Woods, Eric D (pb-Edwoods)"
<edwoods@pbsac01.isp.pacbell.com> writes:
>
>Be careful..The primary constants (R,G,L,C) are NOT constant with
>frequency.
> Your electrical half wave multiple on one band may NOT be a half
>wavelength
>multiple on another.
>
>Eric, K6GV
>edwoods@pacbell.com
> ----------
>
>If you make your 75 Ohm lines a multiple of one HALF wavelength on
>40M,
>the load impedance will be presented back at the input end on 10, 15,
>20,
>& 40M,
>with no need for any transformers since impedances repeat themselves
>every
>half wavelength in a transmission line. This works well up to 225 ft.
>
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