The M10SR solid-state radar with mode S capabilities was developed with the aim to complement RAMET portfolio of radar surveillance systems. The system has an open and highly flexible architecture, allowing to tailor its configuration to fit clients´ requirements and needs of different sites. 

The radar design makes use of the latest state-of-the-art technologies, laying emphasis on reliability of the radar system. The control and monitoring system incorporates both local and remote part which can mutually communicate along a variety of lines. All devices and units of the MSSR are equipped with an independent Built-In Test Equipment for continuous monitoring of all subsystems.

The Monopulse Secondary Surveillance Radar (MSSR) system is fully ICAO-compliant for civil air traffic control systems, military air traffic control, and air defence operations. The MSSR/Mode S system also meets Eurocontrol requirements. The entire system is highly modular which enables realisation of various configurations according to the customer needs.

It operates in duplicated, i.e. backed-up mode. The MSSR basic configuration has the capability of operating in ICAO modes 1, 2, 3/A, C, B and D. By inserting additional modules, the basic configuration can be easily upgraded to ICAO and Eurocontrol compliant Mode S.

Mode S capabilities are available at the following levels:
Elementary Surveillance or Level 1 – is the All call capability for interrogating aircraft transponders with Mode 1, 2, 3/A, C, B and D capabilities and interrogating ICAO-compatible, Mode S-equipped aircraft with Surveillance Identified Code (24-bit address) and automatic reporting of Aircraft Identification and Altitude reporting to an accuracy of 25 feet.

Enhanced Surveillance (Level 3) - is the additional capability to Downlink Airborne Parameters (DAP) (such as values for Speed, Heading, Roll angle, selected altitude, etc.) from an ICAO Level 3, Annex 10 compliant transponder to the ground Mode S station for ATC purposes.

Key features

  • Low-cost system with enhanced surveillance capabilities
  • Open to be adapted to specific client requirements
  • All software based on Linux operating system
  • Ease of maintenance
  • Extremely favourable price/performance ratio
  • Extremely favourable price/performance ratio
  • Compliant with latest ICAO and EUROCONTROL standards
  • CAA (CZ) approved
  • Doubled vital units
  • Backup channels automatically employed in case of malfunction
  • User-friendly radar concept
  • Unmanned operation
  • Stand-alone configuration, or co-mounted with PSR


  • Antenna unit
  • Ground shelter containing:
    • Interrogator-receiver unit,
    • Radar data processing cabinet,
  • Test SSR transponder and other equipment

Main characteristics

Radar coverage:
maximum range256 NM
mimimum range0.25 NM
height66 000 ft
elevation0.3-45.0 deg
Repetition frequency50-250 Hz
Rotation period4-7.5 sec
Maximum number of aircraft per scan1000
Maximum number of aircraft in 10° sector100
Surveillance position accuracy (mean square error):
azimuth0.1 deg
range60 m
azimuth1.0 deg
range100 m
Detection probability> 0.98
Code detection probability> 0.98
Multiple target reports
By splits< 0.1% of total
False reports< 0.1% of total
Probability of combining M10SR info with PSR> 0.95
Operating temperature: outdoorfrom -50° to + 50°C

Azimuth beamwidth2.4 ±0.25 (-3 dB level)
Gain27 dB


  • Interrogation, detection and acquisition of modes 1,2, 3/A, C, B and D
  • Mode S addresed elementary surveillance
  • Mode S addressed enhanced surveillance
  • Standard length communication protocols
  • Extended length communication transactions
  • Aircraft identification protocol
  • Altitude reporting accuracy: at 25ft intervals
  • Comunication protocol : ASTERIX (CAT001, CAT002,CAT034,CAT048)

Product categories


INTERTRAFFIC 2024 8.2.2024 - 16. - 19. 4. 2024
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