As long as they are one of the two that are designed to work with those older NavNets. For example the 1953C/NT (RDP139) or 1954C/NT (RDP149) is a 12 KW that came with a PSU005 power unit that ensures that the suitable 12KW scanner has everything it needs to operate. The entire cable set, power supply, gearbox, and antenna array would be needed. Changing the radar would be just like you originally purchased the 1954C/NT instead of the 1824C/NT.