AN/FPS-40
Description of the radar set, tactical-technical characteristics
Figure 1: AN/FPS-40
Figure 1: AN/FPS-40
| Specifications | |
|---|---|
| frequency: | 9 000 … 9 160 MHz
(X-band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 1500 Hz |
| pulsewidth (τ): | 0.18 or 0.6 µs |
| receiving time: | |
| dead time: | |
| peak power: | 200 kW |
| average power: | |
| instrumented range: | 40 NM (≙ 74 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | |
| MTBCF: | |
| MTTR: | |
AN/FPS-40
AN/FPS-40, also known as Quadradar Mark Ⅳ, is an operating in X-band ground controlled precision approach radar (PAR) with IFF capability when used with auxiliary IFF equipment such as Interrogator Set AN/TPX-41. The PAR is used to help aircraft make safe landings when weather conditions are bad and visibility is poor. It is air-transportable by helicopter as an external load.
AN/FPS-40 is an improved (more powerful version of the AN/FPN-36. The transmitter was equipped with a magnetron. The horizontal antenna could also rotate continuously to perform airspace reconnaissance. The vertical antenna then worked as a height finding radar.
AN/FPS-40 was used on US-Army airfields since 1950. It was replaced by AN/FPN-67 in 2006.