Thank you both for the replies.
I only have the default calibrations (SMA) ones currently (working on making some other ones, PL259, etc) So my nanoVNA was calibrated at the onboard SMA port, The measurements were made through an SMA to PL259 Adaptor with (100mm) of coax.
I will try the measurements again once I get some better and additional calibration standards sorted.
Thanks both for the input
