As I ponder a new home in my near, but not yet immediate future, I am thinking out my antenna plan. I want to avoid some of the minor RFI issues of my current installation by using antenna base couplers (probably SGC) as opposed to in station ATU's. Doing some research on EFHWA's (for the acronymically challenged, End Fed Half Wave Antenna(s)), I came across the B&W version. It is 110 feet long and coupled to ground at both the feedpoint and the far end. And, since the two grounded ends are connected by a counterpoise, can anyone explain to me how that is NOT just a delta loop with a buried edge? Do the balun at the feedpoint and the matching network at the far end really make it any different than a loop? What's in that network, anyway?