The HY-Tower is a HyGain antenna, NOT a Rohn product.....The HY-Tower looks nothing like a HDX tower..looks more like the 20/25G series (is tubular)..and has the stubs along the side for the different bands
The HBX series are meant for light wind loads.....TV antennas and small VHF/UHF yagis..if you guy it, it could support a little more....using it as a support for a wire antenna will be excellent...In areas where you get hurricanes, etc, I wouldnt recommend a HBX when a 25G or better can be found for reasonable prices..
Actually, the Hy-Gain Hy-Tower absolutely is a Rohn BX tower, always has been and still is. The Hy-Tower "legs" are stamped/forged, not tubular and the "X" braces are riveted in place. The 18HT starts out life as a Rohn (used to be "Spaulding") model BX-24, made of three 8' Rohn BX sections, which taper.