I need help from an expert.
My T-Check setup is now 2 x 50 cm RG402 coax cable and a SMA Tee with a 50 Ohm Load,
see picture NanoVNA_T-Check_SMA-Tee_RG402_DSC08175.jpg
The result, calculated with the spreadsheet from QRP is shown in
NanoVNA_T-CheckR-RG402.png
The S21 gain shows a big oscillation, see
NanoVNA_T-Check-T_RG402-50cm.png
If I remove the CH1 coax cable from the SMA Tee S11 looks like:
NanoVNA_50-Ohm-Load_RG402.png
So, I think the calibration was OK.
The attached file NanoVNA_T-Check-T_RG402.S2P can be
imported in VNWA, see VNWA_T-Check-T_RG402.png
How does that come?
What I am doing wrong?
73, Rudi DL5FA
