I am trying to understand the practical differences as a receiving antenna
between (1) two "active" verticals with a variable phasing control, and (2)
four "active" verticals with a switch for four different directions. My
interest is mostly for 80 meters. The physical differences are obvious, of
course. This is mostly in regards to the two different DX Engineering
products.

Is there a significant improvement using the four-square version? Lower
noise? Lower angles? Tighter "beam"?

Bill
W2WO