OVERVIEW: 2D air search radars are long-range, early warning radar systems designed to detect and track aerial targets in azimuth and range, primarily for airspace surveillance and situational awareness.

GENERAL DESCRIPTION: 2D air search radars are fundamental surveillance systems used to detect aircraft at medium to long ranges, providing azimuth and range information but lacking altitude data. Typically operating in lower frequency bands such as the L-Band or UHF (NATO D-Band to E-Band), these radars offer wide-area coverage with high reliability, long operational life, and robust resistance to environmental clutter. They are used by air defense networks, naval platforms, and fixed ground installations for early warning, target cueing, and air traffic control. These systems often serve as the first layer in integrated air defense or naval combat systems, feeding data to fire-control or 3D tracking radars.

ROLE SUMMARY:
Category: Early Warning / Air Surveillance Radar
Primary Use: Long-range detection and tracking of airborne targets
Function: Active radar emission for 2D (range and azimuth) target data
Platform: Fixed ground stations, naval ships, and forward operating bases
Export: Commonly exported to allied nations as part of integrated air defense solutions
Integration: Typically integrated with IFF, command centers, and fire-control systems

Type: Long-range 2D surveillance radar
Mobility: Fixed or mobile variants (vehicle or trailer-mounted)

See Specific information under [Sensors/EW] section.

SOURCE:
SIPRI Radar Systems Database
https://en.wikipedia.org/wiki/Air_search_radar