The plan is to back-fit the existing AN/SPS-48E population from 2011 through 2020, with the SPS-48G units. They will support fleet 3D air search requirements through 2050 and beyond for the ship classes that have SPS-48G. The earlier 1st and 2nd stage RF amplifiers are replaced with a solid state transmitter and the receiver, processor, and Auxiliary Detection Processor, formerly housed in individual equipment cabinets, are combined into a single cabinet.
The plan is to upgrade existing AN/SPS-48E systems from 2011 through 2020 with newer SPS-48G units. These upgrades will support the fleet's 3D air search capabilities until at least 2050 for ships equipped with SPS-48G. The older RF amplifiers are replaced by solid-state transmitters, and the receiver, processor, and auxiliary detection processor are combined into a single unit.