A telecommunications system includes a plurality of ranging terminals programmed to communicate with a plurality of satellites over a plurality of frequencies. A processor, having a memory, is programmed to receive ranging data from each of the plurality of ranging terminals, determine a plurality of power levels for each of the plurality of terminals, and transmit the plurality of power levels to each of the plurality of ranging terminals. Each power level is associated with one of the plurality of frequencies. The plurality of ranging terminals is programmed to transmit signals to the plurality of satellites over the plurality of frequencies in accordance with the power levels determined by the processor.