Monopulse secondary surveillance radar

A system for detection and display of the air situation based on the principle of interrogation and evaluation of received replies from cooperating airborne transponders. The system can be used as a stand-alone or can be easily integrated with the RL-71S primary surveillance radar and an ADS-B system.


Main characteristics:

  • Compliance with ICAO standards
  • Compliance with Eurocontrol standards
  • Mode A, C and S (up to level 5) according to ICAO
  • Compliance with IFF modes 1, 2 and 3, NATO STANAG
  • Basic and extended surveillance mode S
  • Dual redundant solution, fully automated switching over
  • BITE for continuous monitoring of all sub-systems
  • Standard ASTERIX data interface
  • CMS graphic system for local and remote control and monitoring
  • Designed for unattended operation and easy maintenance
  • Possibility of remote-controlled mode S monitoring
Operating modes 1, 2, 3/A, C and S (up to level 5, ELS/EHS)
Range up to 256 NM
Elevation pattern 0 – 45°
Accuracy in range 60 m
Accuracy in azimuth 0 – 0.1°
Resolution in range 230 m
Resolution in azimuth 0 – 0.1°
Detection probability > 98 %
Data update rate 4 – 10 s
Maximum number of processed targets 1
False target detection probability < 0.%
Frequency range 1030 – 1090 MHz
Antenna type LVA
Antenna beam width in azimuth 2.4°
Gain 27 dBi