> On Jun 26, 2015, at 3:58 PM, John Wallace <[email protected]> wrote:
>
> [huge snippage for brevity, apologies for rubbish formatting]
>
> I'm not 100% sure I'm right in what follows (it's been a long time) but
> improvements are welcome. It builds on much of what has already been said.
>
> Termination has been covered by various contributors - termination reduces
> (but may not completely eliminate) reflections.
More precisely: terminating a transmission line in its characteristic impedance
eliminates the reflection. Terminating it with something that differs from the
characteristic impedance will produce a reflection whose magnitude and phase
depends on the mismatch. Open and short are extreme examples of mismatches,
but any mismatch will produce a reflection.
paul
