Just use the 'measure / cable' function from the menu; it should work
fine. It should report the impedance to be about 75ohm, and the length and
loss of the cable.
You do need to set the VF first. But note that true VF often varies by a
few percent from published design values, so you can only expect a length
measurement within a few percent.
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On Sat, May 21, 2022 at 8:18 PM Brian Donaldson <brianb253@...> wrote:
Using the NanoVNA to measure length of RG-6U cable, is it recommend to use
a matching transformer (50¦¸ to 75¦¸) or is that really just a moot issue? I
have all the specs otherwise, such as VF.
Thanks,
Brian D
KF6BL
