This read-write object caps the maximum increase in Tx power AUPC is permitted to apply, from 0 to 9 dB. This limits how far AUPC can push the transmitter above its nominal power level during a fade, protecting against AUPC driving the transmitter, and any shared BUC/transponder resource, beyond its safe or coordinated power limits even during an unusually severe fade event that would otherwise call for more compensation than this ceiling allows. If a link's coordinated maximum EIRP only allows for a 4 dB power increase above nominal before risking interference with adjacent carriers, an admin would cap this object at 4 dB even if the BUC hardware itself could technically supply more headroom.