PCTEL MBSUHF base station adapter kit. The MBSUHF adapter allows a mobile UHF antenna to be used as a base station. By providing radials, the antenna can be used in areas where a ground plane is not available. Will accept any antenna that utilizes 1-1/8 inch 18 thread mounts. Mounts on 1- 1.75 inch outside diameter masts. Converts any 406 - 512 MHz mobile antenna into a base station.