A method and device for supporting a string andor a sheet of material, such as a rope, a length of twine, a trellis netting or a barrier material is provided. In one embodiment, the multipurpose console includes a housing having a latching mechanism fixedly configured to releasably engage a mounting member of the vehicle and an anchor point associated with the housing so that a transport device may be removably secured thereto to transport the removable console to any desired location. The battery pack includes frame member surrounding the packing member packing the battery element and a coating layer constituted of a curable resin formed on surfaces of the packing member which are surrounded and demarcated by the frame member. The initiating correspondent computes the location using the same information and forwards it to other corespondents. The broadband power amplifier is advantageous in view of integration and miniaturization due to the low characteristic impedance of the quarter wave transformer and enables both reduction of sizes of chips and circuits due to its simple circuit structure and reduction in cost due to the reduced number of passive devices.