The new tasks for the Armed Forces have also put up new demand for electronic warfare. These demands will be possible to meet due to the rapid evoulotion in digital signal processing. Today it´s possible to create small and scalable system that can be taild to match the need of the day. This report identifies tree level of EW-system, big system (lorry), medium size system (car) and small system (handheld). By using av modularised and scalable approach the same basic system can be used for all levels.