13 February 2016

QRP 40m to 6m OCF antenna

I am in the process of building a QRP 40m -6m OCF antenna.

I am very happy with the 4:1 Guanella balun I built with FT114-43 toroid:



2 x 1:1 current balun to form the above 4:1 guanella and a 1:1 current balun