[Milsurplus] OT voltmeter

[Ray Fantini]

years ago, when I proctored the microwave engineering lab on campus slotted line and the old HP SWR meters were one of the first labs that I would have students do. We had spectrum analyzers and Vector Network analyzers for each student, but nothing gets you a better understanding of wavelength, open and shorted lines then a slotted line. The understanding of the slotted line is a perfect analog for understanding strip line circuits and gaining ability to visualize what's happening in transmission line theory. Dr Pramanick who I worked for always said if you understand transmission line theory everything else is easy.
That thirty-minute lab had the capability to change your life!

Ray F/KA3EKH


________________________________
From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> on behalf of Jim Whartenby via Milsurplus <milsurplus at mailman.qth.net>
Sent: Thursday, June 19, 2025 10:02 AM
Cc: milsurplus at mailman.qth.net <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] OT voltmeter

Before network analyzers, there were slotted lines.

Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy



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