OVERVIEW:  RO (Range-Only) Radar is a simplified radar system designed exclusively to measure the distance to a target without providing bearing, elevation, or velocity data. It is primarily used in fire-control systems, proximity fuses, and certain legacy weapon systems to determine when a target is within optimal engagement range. It enables pilots to engage aerial targets in close combat and supports limited beyond-visual-range capabilities.

GENERAL DESCRIPTION: The RO Radar is a pulse-Doppler radar designed for air-to-air operations, integrated into the Mirage IIICZ to provide target acquisition and ranging data. It supports gun aiming and missile launch functions with moderate detection range and tracking accuracy. Operating primarily in the X-band, it enhances the fighter’s situational awareness and engagement effectiveness during dogfights and close interception missions.

ROLE SUMMARY:
Category: Airborne Fire Control Radar
Primary Use: Air-to-air target detection and gunfire control
Function: Target acquisition, ranging, and tracking for missile and cannon employment
Platform: Mirage IIICZ fighter aircraft

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

SOURCE:
Jane’s Avionics and Radar Systems
Military Aviation Historical Archives