GAP Titan Antenna With A NanoVNA

I just got a NanoVNA and wanted to look at my GAP Antenna SWR and Resistance/Reactance values across the bands. I found that for best results keep frequency spans as small as possible.

[WZY]

Need to make sure you have calibrated the instrument at the other end of the coax, at the feed point of the antenna. Or make the measurements at the antenna feed point.