What is a "bazooka 1/4-wave balun" ? An article I'm reading makes reference to using a "balun... or even better, a bazooka 1/4-wave balun" at the feedpoint of a quad element, using a 50-ohm coax feedline. Is this a 1:1 balun? Is a "bazooka balun" better than a balun? If so, why? and where can I get info on building one? 73, Jerry K3BZ