All band very effective antenna. Double OCFD invV.
SWR less than 2:1 on all HAM band – 80m 40m 30m 20m 17m 15m 12m 11m 10m 6m
Balun system – 1:4 voltage transformer + 1:1 current choke. Amidon core FT240-K. Silverplated wire 1.3mm
Antenna wire – 4mm copper
