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Post by photo2000a on Nov 24, 2008 9:00:43 GMT -5
HI
Rather new to using a VNA, hope this isn't too obvious...and I was fiddling around with the values in the box to add the values for my coax, was going to use the feature to 'filter out' the coax and read the antenna.
So I think I half aborted that process since I was missing some coax data, but realize that I don't remember what was in there as it's default, is there a on/off function 'check box' or do I just set everything to 0?
On a separate note, since that was the only thing i really poked around with my dipole, measurements smith chart looked mostly ok, as expected, but nothing went thru the center or near it just round and round, so i thought perhaps I screwed up the above
any tips appreciated
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Post by Harold on Nov 28, 2008 3:13:53 GMT -5
It certainly maybe normal for the Smith chart to just make circles around the center. It is possible that there is no exact 50 ohm resistive and 0 j points at all in your exact system. Look carefully at your other plots, swr etc. and see if this is not the case. In order to re-establish all your parameters, ( no matter what you may have done ) simply uninstall and then re-install from the zipped program and you get a clean slate to begin with, simple fix. 73 Harold K5GVR
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