Abstract: An antenna mounting system has a base assembly secured to a pipe mount, and a rotating assembly that supports the antenna and allows azimuth rotation. The base assembly includes a tubular insert extending downward into the pipe and a conical bearing surface. The rotating assembly has a tapered insert that slides into the tubular insert of the base assembly, and a conical bearing surface that is complementary to the conical bearing surface of the base assembly. The bottom of the tapered insert of the rotating assembly is rotatably secured to the bottom of the tubular insert of the base assembly by means of a fastener that permits azimuth rotation of the rotating assembly and antenna with respect to the base assembly. However, this configuration prevents axial (i.e., vertical) movement and movement in the horizontal plane.

Abstract: A mobile antenna system has a dome with an internal space for enclosing an antenna, and tabs spaced around and extending outward from the circular edge of the dome. A base supports the antenna and includes a side wall extending upward to define a circular edge abutting the edge of the dome. Tabs are spaced around and extend outward from the circular edge of the base in vertical alignment to contact the tabs of the dome. The dome and base are removably secured together by a locking ring having an inner diameter large enough to fit over the edges of the dome and base. This ring has a set of L-shaped slots, each having a vertical slot segment with a width to receive the aligned tabs, and a horizontal slot segment continuing from the vertical slot segment.