A tool for metering sauce or other materials comprises a handle and a bowl positioned at a distal end of the handle for holding an amount of the sauce or other material. A first evanescent field, which exhibits a first penetration depth in the sample, and a second evanescent field, which exhibits a second penetration depth in the sample that is greater than the first penetration depth, are produced. Systems for modulating fuel flow are also provided. The mobile unit generates a first value based on the first HFNs of established radio bearers wherein the first value is at least as great as the x most significant bits of each first HFN. In a variant, the invention uses a third filter and divides the bandwidth into three sub-bands. Preferably, the single instruction address is the instruction address of the first instruction in the instruction group.