I have been using this antenna for about 4 months now with excellent
results. It works very well on all the ham bands up to 6 meters. Unlike
the test in the QST article where they mounted the antenna at ground
level. The trick is to get it up in the air 30 to 35 feet. In my case,
I have the base at about 30 feet in the air. If you can't mount the
antenna at the recommended height then look at one of the GAP
verticals.

Jack
w4grj