baseband processor and communication overloading can be relieved in a portable wireless communication terminal by decentralizing power control and frequency shift control functions that are conventionally concentrated in the baseband processor . a timing sequencer for power control can be integrated into a transceiver of the portable wireless communications terminal , thereby advantageously permitting power control signals to be generated on the transceiver side rather than the baseband processor side . shadow registers containing information indicative of commonly used or repeated frequencies can be integrated into the transceiver side , thereby advantageously relieving the baseband processor of corresponding frequency shift control responsibilities . these responsibilities can be further relieved by integrating into the transceiver side a sequencer cooperable with the shadow registers for controlling frequency shifting of a frequency generator on the transceiver side , and by integrating into the transceiver side further shadow registers for programming the sequencer with desired frequency shift sequences .