AN/SPN-8
Description of the radar set, tactical-technical characteristics
Figure 1: AN/SPN-8 on USS Lexington (CV-16) in 1962
| Specifications | |
|---|---|
| frequency: | 9 000 … 9 180 MHz
(X-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 4000 Hz |
| pulsewidth (τ): | 0.25 µs |
| receiving time: | |
| dead time: | |
| peak power: | 40 … 60 kW |
| average power: | |
| instrumented range: | 6 NM (≙ 11 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | 1.5° |
| hits per scan: | |
| antenna rotation: | |
| MTBCF: | |
| MTTR: | |
AN/SPN-8
AN/SPN-8 was an operating in X-Band shipboard carrier controlled approach system designed to guide aircraft from a position as far as 6 nautical miles out to a position as close as 200 feet from touchdown on the aircraft carrier.
The antenna of type AS-477/SPN-8 was a truncated paraboloid fed by a feed horn. It was covered by a cylindrical radome and swiveled back and forth in a sector of 100 degrees in azimuth with 3 oscillations per second.
Source:
- Military Standardization Handbook United States Radar Equipment Manual TM 11-487C-1 1965, p. 1176ff