Abstract: A releasable mounting system and method for semi-permanently attaching to a ferrous material surface, comprising a base assembly having a plurality of magnetic-assisted suction cup (MASC) mounting assemblies connected to a base plate for semi-permanently attaching to the ferrous material surface. Each MASC mounting assembly has a suction cup and at least one magnet providing additional fixturing of the base assembly to the ferrous material surface. The system may include a rooftop assembly comprising a shell and a pivotally mounted mast assembly biased in an upright position. The rooftop assembly on a vehicle rooftop may include sensors providing information to a computer inside the vehicle, including information with respect to the orientation of the mast on top of the vehicle during a mobile survey. All of the data gathered from the rooftop assembly may be wirelessly communicated to the computer inside the vehicle.

Abstract: A releasable mounting system and method for semi-permanently attaching to a ferrous material surface, comprising a base assembly having a plurality of magnetic-assisted suction cup (MASC) mounting assemblies connected to a base plate for semi-permanently attaching to the ferrous material surface. Each MASC mounting assembly has a suction cup and at least one magnet providing additional fixturing of the base assembly to the ferrous material surface. The system may include a rooftop assembly comprising a shell and a pivotally mounted mast assembly biased in an upright position.