I am a newbie to the community and was looking to build the T2FD found here (http://www.hard-core-dx.com/nordicdx/antenna/wire/t2design.html
) at HARD-CORE-DX.COM and was looking for recommendations on a 4:1 balun. Do I need a current balun or a voltage balun?? Just doing SWL at this time. I don't really want to build one. Thanks.