Limedomain reflectometry on a budget

Doping out transmission line difficulties can be a tedious and difficult chore—especially when the load end is not easily accessible. Although there are a number of different methods available, I want to discuss time-domain reflectometry Although the official, bouled-in-bond, 100-proof time-domain reHectometer (TDR) is a terribly expensive piece of equipment, some TDR methods can be used by any amateur who has access to an oscilloscope. Will the residts be as good as professional TDR equipment? In a word: no. Will the results be useful in troubleshooting a transmission line? In a single word: yes.

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