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I want to see how many wavelengths are in my feedline - but


 

I want to see how many wavelengths are in my feedline - but I have not been able to figure out how. I've searched previous posts and checked many web pages that google found for me. Everything I've found so far seems to be only for measuring cable length or velocity factor. I've done that before.
I've read pages about measuring antennas where they keep saying that measurements vary depending on whatever fraction of a wavelength there is. For example, if the feedline is 2.7 wavelengths, and I change it to 2.4 WL's, what effect should be seen? (No, I'm not in a position to try that right now!)

I've used the TDR function and it works well, giving readings in meters.

What I would like to see/have is a display that shows a sine wave (with number of cycles in proportion to the actual signal) at the CW test frequency and also shows the impedance bumps or discontinuities and joints and changes from co-ax beginning to the antenna connection. Maybe even to the end of the antenna wire!
I'm not saying that this might be a 'useful' feature, I'd just like to see what it might look like with my two HF antennas (a random wire and a GAP Challenger vertical).

--
Doug, K8RFT

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