AN/FPN-28
Description of the radar set, tactical-technical characteristics
| Specifications | ||
|---|---|---|
| ASR | PAR | |
| frequency: | 2 775 … 2 900 MHz
(S-Band) |
9 000 … 9 180 MHz
(X-Band) |
| pulse repetition time (PRT): | ||
| pulse repetition frequency (PRF): | 1 200 Hz | 2 400 Hz |
| pulsewidth (τ): | 0.8 µs | 0.5 µs |
| receive time: | ||
| dead time: | ||
| peak power: | 500 kW | 25 kW |
| average power: | ||
| instrumented range: | 50 NM (≙ 92 km) | 10 NM (≙ 19 km) |
| range resolution: | ||
| accuracy: | 1% | 400 ft |
| beamwidth: | 2.2° | β= 57' ;ε= 33' |
| hits per scan: | ||
| antenna rotation: | 15 and 30 min-1 | |
| MTBCF: | ||
| MTTR: | ||
AN/FPN-28
The AN/FPN-28 and AN/FPN-28A are ground-controlled approach radar systems consisting of a search and a precision systems.
The search radar system operates in S-Band. It is designed to detect aircraft up to a maximum range of 50 miles and furnish precise information for directing the movement of the aircraft in azimuth to a predetermined point in space. From this point, the aircraft can be directed along a predetermined glide path to a point within 50 feet above an airport runway through the facilities of the precision system of the radar set.
The precision approach radar operates in X-Band. It is designed to provide precise information for directing the movement of aircraft in azimuth and elevation along a predetermined glide path to a point above an airport runway from which a landing can be completed under normal visual means and under all conditions approaching minimum visibility.
Source:
- MIL-HDBK-162A, 15 December 1965, Volume 1, Section 1, p.66 (online)