Description of the radar set, tactical-technical characteristics
Figure 1: ASR-7 in Museo Aeronaútico y del Espacio de Chile
|frequency:||2 700 … 2 900 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||713 …1 200 Hz|
|pulsewidth (τ):||0.833 µs|
|peak power:||425 kW|
|instrumented range:||60 NM (≙ 110 km)|
|range resolution:||150 m|
|hits per scan:|
|antenna rotation:||12,75 or 15 rpm|
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.