Oh, I should add that I was very careful about following the
instructions provided with the antenna for hanging it. It's not hung
against a wall, for example, and is as far out on my balcony as I
could possibly put it. The coax feedline drops straight down from the
antenna, comes through my window and plugs into the antenna jack on
the Sony SW77. I don't think that this antenna is supposed to require
a ground, so I'm really puzzled about what I might be doing wrong.

Steve