"Tom Rauch" <w8ji@contesting.com> wrote:
>I can't think of any way to build a directional coupler that won't
>show high SWR when the load is shorted. Can anyone think of a
>way?
Not any _correct_ way. If the load is a short, then the reflected power
equals the forward power; the voltage reflection coefficient (Gamma) is
minus one; and the current reflection coefficient is plus one. Maybe what
the rig in question checked for wasn't reflected power, but (over)voltage.
73 de Chuck W1HIS
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