Sorry.  I misunderstood your goals.  My "mistrake"
----- Original Message -----
From: "michael brown" <spam-me@HOUSTON.RR.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, February 20, 2003 4:44 PM
Subject: Re: [PIC]: How would I build a reflectometer?


> From: "Dennis J. Murray" <djmurray@BELLATLANTIC.NET>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Thursday, February 20, 2003 3:21 PM
> Subject: Re: [PIC]: How would I build a reflectometer?
>
>
> > You want a great reflection from the end?  Just leave the end open or
> > shorted!  A good termination impedance match doesn't return much
> signal.  A
> > short or open gives you a great spike (different directions, of
> course).
>
> I may not have been clear enough.  I meant that the "injection" (near)
> end would be terminated in the proper impedance to prevent ping-ponging
> of the pulse.  The far end would be left as you said, either open (most
> likely) or shorted.  :-)
>
> michael
>
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