According to one embodiment of the present invention, a system for measuring overall jitter is disclosed that includes a data converter that measures a signal to generate a first measurement set and a second measurement set, which are used to compute overall jitter. The elongated handle has different ways thereon to arrest the brush head in any desired position. Subsequently, the type III crystal of Compound A can be produced by performing desolvation of the crystal. The scheduler schedules the items in the queue for transmission by the subscriber station in accordance with which section of the queue the items reside.