A countertop automatic foam soap dispenser includes an automatic foam soap dispenser body, a soap liquid container, a circular connecting tube and a battery compartment. In one exemplary design, a first linear power amplifier supporting multiple radio technologies may be used to amplify a first RF input signal and provide a first RF output signal. The change manager reduces or eliminates many situations that would otherwise result in a reset as well by instructing online editor as to what language elements need to be assembled to implement the change. A final reconstructed emission image may then be calculated based on the reconstructed emission image andor the corrected attenuation image.