On Wed, 06 Sep 2006 04:45:57 GMT, Cecil Moore
wrote:

Jim - NN7K wrote:
... but it is
beyond the ability to have MORE power returned
to the source, than the source provided

Did you know a reflection coefficient can be greater
than 1.0?

It is true that reflection coefficient can be greater than 1.0.

The reflection coefficient *CANNOT* be greater than 1.0 where Zo is
purely resistive.

So, where a sampler is calibrated (nulled) on a purely resistive load
(eg 50+j0) as is most commonly done, it should never show a reflection
coefficient greater than 1. A reflectometer calibrated to a resistive
load and that shows a "reflected" reading greater than the "set"
reading is inaccurate / defective / a poor design.

Owen
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