A data synchronization arrangement is provided for exchanging clocked data between different clock domains running at the same clock frequency but at an arbitrary relative phase shift. However, internal dimensions of IDTs are inversely proportional to operating frequency, such that high frequency IDTs present significant manufacturing difficulties. The method also includes implementing a second mode of the tri-modal application when a change to the field-of-view is detected and a specified threshold of change is met. The adjustable end is movable to different positions to provide a line of sight for viewing the tower light. If the two magnetoresistive elements of each memory cell are magnetized in such a way that they have different resistances, the information stored in the memory cell can be determined with a resistor half-bridge circuit by assessing whether the signal tapped off at the output is greater than or less than zero.