Hy-Gain AV-640 is a resounding success.
I’m VERY pleased with my Hy-Gain AV-640. It’s mounted on a 15ft mast at the side of my single-story house. I have a Kenwood TS-590s and I usually run 50 watts.
Today I was scanning 20 meters and I heard 4B4B. That’s a DXpedition to Revillagigedo Islands (Socorro) in the Pacific. There was a small pileup but I punched the XMIT button and gave my call. He answered. About three weeks ago the same thing happened with F6KHM (France).
Both stations came back to me on my first attempt to make contact. Coming from years of sub-optimal antenna configurations, this is a new experience for me. And I’m loving it.