NMD-401
Description of the radar set, tactical-technical characteristics
Figure 1: NMD-401
| Specifications | |
|---|---|
| frequency: | 9 320 … 9 430 MHz
(X-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 2 000 Hz |
| pulsewidth (τ): | 0.3 µs |
| receiving time: | |
| dead time: | |
| peak power: | 30 kW |
| average power: | |
| instrumented range: | 40 NM (≙ 74 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | 1.8° |
| hits per scan: | |
| antenna rotation: | 10 min⁻¹ |
| MTBCF: | |
| MTTR: | |
NMD-401
The NMD-401 was a maritime navigation radar operating in the X-Band In 1952 it was the first marine radar to be developed and built independently in Japan. The prototype was installed on the Hokuto-maru, the navigation training center of the Japanese Ministry of Transport.