The radar incorporates both traditional RBS surveillance interrogation channel (modes 1, 2, 3/А, С) and separate surveillance channel – ADS-B 1090 ES thus combining customary MSSR and 4-channel ground station ADS-B 1090ES.

ADS-B 1090ES channel

The ADS-B 1090 ES channel has a dedicated 4-sector antenna system and separate receivers that ensure surveillance of aircrafts with the antenna stopped or MSSR transmitter switched off during scheduled operations.

Aircrafts positioning accuracy is not affected by distance between them and ADS-B ground equipment. Additional comparative monitoring of MSSR data and ADS-B information regarding air targets permits verifying validity of surveillance data.

MONITORING AND CONTROL SYSTEM

The monitoring and control system is developed based on latest advances in this area and allows monitoring over 98% of components, interfaces, characteristics and parameters of MSSR. The system ensures accurate diagnostics of irregularities or deviations in radar operation with their classification. The system permits connection of up to 3 terminals two of which may be at whatever distance.

The terminals may be connected both via the telephone line by aids of DSL connections at a distance of up to 15 km and via IP router. 

MSSR may be operated without permanent attendance of maintenance personnel in case the remote control is provided. 

A broad range of software tools utilized by the system provides any data regarding real-time operation of radar in the form of user friendly graphs and tables, including information regarding control elements, temperatures and supply voltages of the entire radar in the form of online diagram updated in real time.

Information regarding status and operation of the radar is logged in archive so that the status may then be viewed using special visualization tools and necessary data be picked. 

RECEIVER

Digital receiver warrants stability of reception channels parameters in time that ensures steady operation of the radar during the entire service life without extra maintenance.

100% repetition of receiver characteristics from item to item ensures exchangeability on the spot.

For online monitoring of radar status during operation, level of sensitivity is continuously measured and phase stability of high-frequency path of all receivers is controlled.

In order to check radar operation as a whole, “high frequency” of “Test target” capability is implemented at input of respective receiver.

TRANSMITTER

Single-module solid-state transmitter offering high reliability.

In order to adapt the radar characteristics for operation at specific position the radar makes use of:

·         Independent power adjustment in interrogation and suppression channels

·         “Power map” capability – up to 32 azimuth sectors with individual power levels for interrogation and suppression channels.

Actual power emission levels in interrogation and suppression channels are measured real-time. 

Status of high-frequency transmission paths of interrogation and suppression channels is continuously monitored during radar operation by power and SWR measuring.
Special software tools make it possible to capture measurement results online on the control terminal in the form of user-friendly graphs. 

PLAN POSITION INDICATOR (ppi)

Captures targets of MSSR and ADS-B. 

In order to ensure additional monitoring of radar operation, the display of digital target data is supported by display of analogous data received via standard Ethernet card.

Archiving and subsequent playback of records are ensured so that playback does not interfere with recording of current information.

The display systems permits connection of up to 4 test indicators three of which may be at whatever distance. 

The test indicators may be connected both via the telephone line by aids of DSL connections and IP router.