Siemens 1990
Description of the radar set, tactical-technical characteristics
Figure 1: At this picture the IFF- monopulse antenna is mounted at the top of the primary radar antenna (ASR 910)
| Specifications | |
|---|---|
| frequency: | 1030 / 1090 MHz |
| pulse repetition time (PRT): | synchronuous to the primary radar |
| pulse repetition frequency (PRF): | synchronuous to the primary radar |
| pulsewidth (τ): | depending on mode |
| receive time: | |
| dead time: | |
| peak power: | up to 2 kW |
| average power: | up to 100 watts |
| instrumented range: | up to 250 NM |
| range resolution: | 500 m |
| accuracy: | |
| beamwidth: | 10 degrees |
| hits per scan: | 3 … 5 |
| antenna rotation: | synchronuous to the primary radar |
| MTBCF: | |
| MTTR: | |
IFF/SIF - Siemens 1990
This secondary radar is used in the civil and military air traffic management and by the air defense radar systems. The radar got different designators and abbrevations:
- SSR: by the civil air traffic control (Secondary Surveillance Radar)
- SIF: by the military air traffic control (Selective Identification Feature)
- IFF: by the air defense systems (Identification Friend or Foe)
The characteristics of this system are standardisated by Eurocontrol.
IFF/SIF - Siemens 1990 is now retired. Only some military airfields are still equipped with it, because the company EADS fail to meet the schedule with the delivery of new radars ASR-E.
