OVERVIEW: The Marconi 400 is a family of radar and electronic systems produced by Marconi, used primarily for maritime and airborne applications from the mid-20th century onward.

GENERAL DESCRIPTION: The Marconi 400 series encompasses a variety of radar and electronic equipment designed for navigation, surveillance, and target acquisition. These systems are typically characterized by their reliable performance, adaptability to multiple platforms, and moderate range capabilities. Used widely in naval and civilian maritime contexts, Marconi 400 systems support air and surface search, navigation, and early warning functions. Their modular design allowed integration with other sensors and fire-control systems. The systems operate across multiple frequency bands depending on the specific function, with emphasis on robust detection in cluttered environments.

ROLE SUMMARY:
Category: Radar / Electronic Surveillance
Primary Use: Navigation, surface and air search, target acquisition
Function: Active radar detection and ranging
Platform: Naval vessels, maritime patrol aircraft, commercial ships
Integration: Compatible with fire-control and communication systems

See Specific information under [Sensors/EW] and [Properties] sections.

SOURCE:
Open-source military radar databases, historical Marconi product references