ASR-7
Description of the radar set, tactical-technical characteristics
Figure 1: ASR-7 in Museo Aeronaútico y del Espacio de Chile
| Specifications | |
|---|---|
| frequency: | 2 700 … 2 900 MHz
(S-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 713 …1 200 Hz |
| pulsewidth (τ): | 0.833 µs |
| receiving time: | |
| dead time: | |
| peak power: | 425 kW |
| average power: | |
| instrumented range: | 60 NM (≙ 110 km) |
| range resolution: | 150 m |
| accuracy: | ± 1% |
| beamwidth: | 1.5° |
| hits per scan: | |
| antenna rotation: | 12,75 or 15 rpm |
| MTBCF: | |
| MTTR: | |
ASR-7
The ASR-7 was an air traffic control radar operating in the S-band for use at airports. The military version was called AN/GPN-12.
The antenna is a modified parabolic reflector with a cosecant squared pattern and an antenna gain of 34 dBi. The trailing edge of the antenna pattern is about 30°. A tunable magnetron type DX276 was used in the transmitter. The pulse repetition frequency was six times staggered or could be manually adjusted to a fixed value.
The ASR-7 was replaced by the ASR-11 until 2010.