I've been working on some methods to determine proper Beverage termination.
Some time domain and some frequency domain. Has anyone tried a TDR on a
Beverage? I would use a pulse generator with a 10 ns rise time and a pad to set
the
output impedance to around 500 ohms. A 50 MHz oscilloscope is plenty fast to
look at it. This should give a resolution of <10 feet and allow one to see how
the impedance varies along the length of the Beverage. A simpler method is to
operate the Beverage as a Transmission Line Pulse Generator and one can get the
same information. If anyone wants to give this a try I can explain it and how
to interpret the waveform.
Dave WX7G
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