Comet RS-660U Roof Rack Mount

RS-660URoof-Rack Mount Adjusts to attach to larger roof racks, up to 2.5 inch widthRecommended for antennas up to 60 inches5/8″ hole accepts SO-239 connectors (Cable assy 3D4M, CK-3M5 etc) or N-female connectors (5D4N, CK-5N etc)When using an antenna with an NMO connector, install the SO-239 cable assembly then adapt the SO-239 into an NMO connector with the AD-25M