OCFD Windom Antenne für Kurzwelle am Nano VNA - eflose #1510

Measuring the Windom antenna for shortwave on the amateur radio bands with the Nano VNA. The RF transformer I made at a 1:4.4 ratio should have been exactly 1:4; then the impedance would have been a better match for the cable, but it works as is. However, on the 60m amateur radio band, my SWR is significantly higher than expected.