AN/APN-59
Description of the radar set, tactical-technical characteristics
Figure 1: Antenna AS-653/APN-59
Sperry Corporation (1910-1986)
| Specifications | |
|---|---|
| frequency: | 9 375 MHz ( X-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 180, 350, 1 025 and 2 000 Hz |
| pulsewidth (τ): | 4.5, 2.35, 0.8 and 0.35 µs |
| receive time: | |
| dead time: | |
| peak power: | 58 … 75 kW |
| average power: | |
| instrumented range: | 240 NM (≙ 444 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | β =3°; ε =5° |
| hits per scan: | |
| antenna rotation: | |
| MTBCF: | |
| MTTR: | |
AN/APN-59
The AN/APN-59 is an older navigation, search and weather radar, formerly used in C-130, C-135, B-57, C-133, C-141 and KC-97. The radar operates in X-Band and replaced the former AN/APS-38 units.
The reflector of the antenna was divided in an upper and a cahngeable lower half. The lower part could be exchanged by another formed lower half to provide different antenna patterns depending on the task: a thin pencil beam for long-range search and weather reconnaissance, and a wider beam for navigation and overview at close range.
Source:
- Military Standardization Handbook United States Radar Equipment Manual TM 11-487C-1 1965, p. 737ff