Methods and apparatus for automatic security checking in systems that monitor for improper network usage are disclosed. The gate insulator layer, with the nitride layer, is comprised of two sections that each have structurally defined and separated charge trapping regions. The receiver includes an antenna array with three antenna elements, which preferably are patch antenna elements spaced apart by one-half wavelength. An exemplary method of implementing the voltage probe may include providing the dielectric adjacent the outer conductor. If at least one of the services is likely to be unable to complete processing needed to further the transaction to completion, then the transaction is not initiated at all.