Used Hy-Gain ATB-75 SN55053
Universal Tilt Vert. Base Mount
A unique design allows this tilt base to fit most vertical antennas with or without a base bracket. Pre-punched hole makes it easy to mount many different type of verticals. Fits Hygain’s AV-18VS, AV-14VS, AV-18AVQII, AV-620, AV-640, AV-6160, MFJ-1796, MFJ-1798, MFJ-2990 and others with tube bases or mast pipes up to 2 ¼” OD. Mount one side of the tilt base to the mast and the other to the antenna base. No climbing a ladder - raise your antenna up/down easily before severe weather by yourself - just walk it up or walk it down. Ground radial holes also provided. ⅛” thick aluminum. Includes (2) 2 ¼” U-bolts, mast saddles and stainless steel nuts/bolts.