Lockheed Martin was trying to develop a prototype portable VHFUHF Transceiver system for government use. The new model, PWS-VTC315MS-28 was created from two COTS products (PWS310 power supply and VTC120 Voltage converter) and placed in the new watertight PWS1510 extrusion. The unit was ruggedized to meet Mil-STD 810D and Mil-STD 461E. The basic power supply model is the PWS310-110-24. Our suggestion was to use the PWS310 pcb in a watertight chassis with our Military style endplate and two MS3102 output connectors. To improve the EMI characteristics of the supply, we would add an input filter assembly as well as our standard military preparations of components and conformal dip the board. The unit also has a guard for the circuit breaker and an output on LED and a handle for portability. It is rated at 12Amps Continuous, 15 Peak. It has an auto-ranging VAC input and an output of 28 VDC.