Poul-Henning Kamp wrote: > In message <[EMAIL PROTECTED]>, Dr Bruce Griffiths writes: > > >> I can see the difference between the short 50 ohm cable terminated in 50 >> ohms and the short 50 ohm cable terminated in 75 ohms. >> It would be instructive to repeat this with a short length of 75 ohm >> cable terminated in50 and 75 ohms. >> > > The technique for visualizing these kinds of things is called Time Domain > Reflectometry and you can do it with a good pulse generator and an > oscilloscope. > > A HP5359A is perfect for the job, but less will do it. > > Read here how-to: > > http://www.hparchive.com/Application_Notes/HP-AppNote-62.pdf > > Poul-Henning > > Poul
The Tektronix booklet: / Time-Domain Reflectometry Measurements by James A Strickland /from their measurement concept series is also instructive, at 102 pages it has far more detail and examples. Unfortunately a quick search failed to find a scanned version of this on the web. I have a copy so if there were sufficient demand I could scan it. Bruce _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
