Functions of L- band

• aircraft detection, displaying of position, automatic measurement of range and azimuth from radar primary channel;
• aircraft interrogation, receiving and displaying replies from radar secondary channel;
• combining data received from primary and secondary channels;
• automatic tracking, flight trajectory estimation;
• acquisition, displaying and processing of air situation from another radar, generation of multi-radar tracks;
• automatic height-finder control, altitude calculation;
• automatic distribution of air situation;
• recording of air situation;
• semi-automatic topographic referencing of radar position (GPS-based);

Antenna Rotation System

L- band is designed with new horn type radiator and additional antennas (side lobe suppression and back lobe suppression antennas) to sufficiently improve the beam pattern.

Features

• increased number of RF channels;
• new 5-channel RF rotary joint;
• Tx/Rx equipment has modular design of units and subunits;
• Tx/Rx are solid-state and fail-soft.

Asynchronous pulse interference is completely suppressed by digital signal processing. Passive interference is rejected through digital MTI and generation of adaptive clutter map. Operating range of MTI is from 0 to 150 km. Protection against active jammers is implemented through automatic jamming monitoring with displaying of jamming.