OVERVIEW: Helicopter Approach Radar provides precise short-range radar guidance for safe helicopter landing and approach operations, typically deployed on naval ships and ground stations from the 1970s onward.

GENERAL DESCRIPTION: Helicopter approach radars are specialized short-range surveillance radars designed to track and guide helicopters during final approach and landing phases, especially under adverse weather or low-visibility conditions. These systems deliver azimuth, elevation, and range data with high accuracy and rapid updates, enabling controllers to provide safe approach vectors. Usually operating in the I and J frequency bands, they are integrated with ship or airbase control systems and often equipped with clutter reduction and stabilization to handle maritime or complex terrain environments.

ROLE SUMMARY:
Category: Approach Control Radar
Primary Use: Precision guidance and tracking of helicopters during landing
Function: Short-range 3D tracking and vectoring
Platform: Naval vessels, airbases, heliports
Integration: Linked to air traffic control and ship combat systems for safe landing operations

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

SOURCE:
Defense Technology Briefings
https://en.wikipedia.org/wiki/Helicopter_approach_radar