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Measure Characteristic Impedance, Z0

JohnsonMiller , 01-21-2022, 03:00 AM
Wondering is it possible to measure the characteristic impedance of a transmission line using ordinary lab equipment?
Suppose you have a PCB and want to check the manufacturing result, how can we measure Z0?
qdrives , 01-21-2022, 02:39 PM
It depends on what you consider ordinary...
But something like this: https://hackaday.com/2020/12/14/dead...-oscilloscope/ ?
WhoKnewKnows , 01-21-2022, 07:30 PM
The hackaday.com article refers the reader to a youtube from W2AEW youtube channel. This channel has a few variations on home brew TDR measurements (what's needed to judge tx line impedance).
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