Well that makes it simple doesn't it.
Make it slightly longer than expected, then partially cut through the cable or snip it completely off as needed for the short at freq! Cool!
Joe
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On 3/30/2025 1:45 PM, Gary W9TD via groups.io wrote:
Joe,
If you short the far end of the coax and connect the NanoVNA to the other end, each half wave will read a short on the VNA. half wavelengths repeat the impedance on the end, quarter wavelengths invert the impedance at the end, i.e. a short will look like an open.
Gary
W9TD