Description of the radar set, tactical-technical characteristics
Figure 1: ASR 5
|frequency:||2 700 … 2 900 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||710 … 1 200 Hz|
|pulsewidth (τ):||0.833 µs|
|peak power:||425 kW|
|average power:||380 W|
|instrumented range:||60 NM (≙ 111 km)|
|range resolution:||187 m|
|hits per scan:|
|antenna rotation:||15 rpm|
The ASR 5 was a pulse-modulated S-Band terminal area surveillance radar. The radar utilized a 5.18 m diameter parabolic reflector type antenna with an antenna gain of 34 dB. It generated a fan-shaped beam from minus 3 to plus 30 degrees in elevation. The polarisation was switcheable between linear vertical and circular.
In 1973 the ASR-5 antenna was modified by adding a separate receive only feedhorn and polarizer to produce separate antenna two-way coverage patterns for the close-in and long range capabilities.
The ASR 5 was widely used at cilvil airports in the seventies and eighties. At the beginning of the 90s it was replaced by the ASR-9.
The military designator of the ASR 5 was AN/FPN-47. The transmitter and receiver site equipments of both radars are identical; however, they used different indicator groups. AN/FPN-47 is used with indicator group OA-4754/FPN-47 and ASR-5 is used with indicator groups of AN/CPN-18.
- Military Standardization Handbook United States Radar Equipment Manual TM 11-487C-1 1965, p. 74ff