In a wireless communication system, an initiator, such as a card reader, can communicate with a target, such as a smart card or other device emulating a smart card, by amplitude modulating a radio frequency signal. In one embodiment, the fixture includes a two piece construction that allows a first piece to be swung away from the second piece to accommodate a variety of sizes of workpieces. The method includes selectively adjusting a power output of the engine above a steady state power output rating of the engine when an acceleration of the motor exceeds an acceleration threshold value. The counter value can be written or read as part of either the least significant or most significant bits of the CAM entry.