Delta is fed at one of the corners through a 1:4 transformer

Delta uzmaitinta vianame kampe per 1:4 transformatoriu

A closer look at 1:4 transformer

1:4 transformatorius is arciau

1:4 transformer SWR scan when loaded with a 430 ohm load

1:4 transformatoriaus SWR kreive kai apkrautas 430 omu apkrova

The other end of delta - the vertical side goes in paralel to a trunk of a tree

Kitas deltos kampas - vertikali krastine eina lygegriaciai medzio kamienui

41m perimeter delta is nicely resonant on the higher bands as well - a scenario when fed trough a 1:4 transformer

41m perimetro delta graziai rezonuoja ant aukstesniu diapazonu - maitinimas per 1:4 transformatoriu

This is what you get when delta is directly fed with a 50 ohm coax at the corner

Stai kas gaunasi kai delta uzmaitinama tiesiogiai per 50 omu koaksialini kabeli viename is kampu